2025
|
| 1. | Sara Herrero-Anta; Roberto Román; Daniel González-Fernández; Claudia Emde; David Mateos; Celia Herrero Barrio; Ramiro González; Oleg Dubovik; Carlos Toledano; Abel Calle; Victoria E. Cachorro; Bernhard Mayer; Ángel M. de Frutos Impact of cloud presence on sky radiances and the retrieval of aerosol properties Journal Article In: Atmospheric Research, vol. 317, pp. 107938, 2025, ISSN: 0169-8095. @article{Herrero-Anta2025,
title = {Impact of cloud presence on sky radiances and the retrieval of aerosol properties},
author = {Sara Herrero-Anta and Roberto Román and Daniel González-Fernández and Claudia Emde and David Mateos and Celia Herrero Barrio and Ramiro González and Oleg Dubovik and Carlos Toledano and Abel Calle and Victoria E. Cachorro and Bernhard Mayer and Ángel M. de Frutos},
url = {https://www.sciencedirect.com/science/article/pii/S0169809525000304},
doi = {https://doi.org/10.1016/j.atmosres.2025.107938},
issn = {0169-8095},
year = {2025},
date = {2025-01-18},
urldate = {2025-01-01},
journal = {Atmospheric Research},
volume = {317},
pages = {107938},
abstract = {This paper explores the influence of the presence of clouds on sky radiances. It also analyses their impact on the retrieval of aerosol properties when using an inversion algorithm whose radiative transfer model (RTM) is designed for cloud-free atmospheres. For that, synthetic observations are simulated for 9 partially cloudy skies and for their equivalent cloud-free skies, considering 16 different aerosol scenarios. A parameter named cloud enhancement factor (CEF) has been used to determine the modifications induced in the sky radiances by each partially cloudy scenario with respect to the cloud-free sky. This parameter indicates that the sky radiances remaining after applying a cloud-screening are affected by the presence of clouds. In general, they show enhancements between 0 and 20 % with respect to the cloud-free radiances, depending on the cloudy conditions and the scattering angle. The synthetic observations used as input for the retrieval of aerosol properties are the ones required by the inversion strategy used, GRASPpac: the aerosol optical depth (AOD) and sky radiances at 4 different wavelengths together with the ceilometer range corrected signal (RCS). In partially cloudy scenarios with low CEFs, the aerosol properties do not present significant changes with respect to the cloud-free conditions. However, for partially cloudy scenarios with higher CEFs, a clear differentiation between the aerosol optical properties retrieved with and without clouds is observed. In these scenarios, the precision of the retrieval is similar for both conditions, but the accuracy is lower for the cloudy conditions. In particular, under partially cloudy conditions, it is observed an overestimation of the real refractive index (RRI) and the single scattering albedo (SSA) between 0.05 and 0.06 and between 0.03 and 0.06 respectively, and an underestimation of the asymmetry factor (g) and the imaginary refractive index (IRI) of about ?0.02 and ? 0.005, respectively. These values slightly vary with the aerosol load and wavelength for the RRI and SSA. The effects on the size distribution parameters are very small, concluding that the impact of clouds is noticeable in the optical properties but not so much in the microphysical part.},
keywords = {Aerosols, clouds, Enhancement effect, GRASP, sky radiance},
pubstate = {published},
tppubtype = {article}
}
This paper explores the influence of the presence of clouds on sky radiances. It also analyses their impact on the retrieval of aerosol properties when using an inversion algorithm whose radiative transfer model (RTM) is designed for cloud-free atmospheres. For that, synthetic observations are simulated for 9 partially cloudy skies and for their equivalent cloud-free skies, considering 16 different aerosol scenarios. A parameter named cloud enhancement factor (CEF) has been used to determine the modifications induced in the sky radiances by each partially cloudy scenario with respect to the cloud-free sky. This parameter indicates that the sky radiances remaining after applying a cloud-screening are affected by the presence of clouds. In general, they show enhancements between 0 and 20 % with respect to the cloud-free radiances, depending on the cloudy conditions and the scattering angle. The synthetic observations used as input for the retrieval of aerosol properties are the ones required by the inversion strategy used, GRASPpac: the aerosol optical depth (AOD) and sky radiances at 4 different wavelengths together with the ceilometer range corrected signal (RCS). In partially cloudy scenarios with low CEFs, the aerosol properties do not present significant changes with respect to the cloud-free conditions. However, for partially cloudy scenarios with higher CEFs, a clear differentiation between the aerosol optical properties retrieved with and without clouds is observed. In these scenarios, the precision of the retrieval is similar for both conditions, but the accuracy is lower for the cloudy conditions. In particular, under partially cloudy conditions, it is observed an overestimation of the real refractive index (RRI) and the single scattering albedo (SSA) between 0.05 and 0.06 and between 0.03 and 0.06 respectively, and an underestimation of the asymmetry factor (g) and the imaginary refractive index (IRI) of about ?0.02 and ? 0.005, respectively. These values slightly vary with the aerosol load and wavelength for the RRI and SSA. The effects on the size distribution parameters are very small, concluding that the impact of clouds is noticeable in the optical properties but not so much in the microphysical part. |
2024
|
| 2. | B. Torres; O. Dubovik; R. González; E. Diez; D. Fuertes; M. Herreras; T. Lapionok; M. Momoi; L. Blarel; P. Goloub; A. Lopatin; C. Toledano; A. Sinyuk; A. Smirnov; I. Slutsker; T. Eck; E. Lind Enhancing Aerosol Characterization with aureole CCS Scans and optical depth measurements: Introducing GRASP-CCS Conference AERONET Science and Application Exchange 2024, 17-19 Sep 2024 College Park, EEUU, 2024. @conference{Torres2024,
title = {Enhancing Aerosol Characterization with aureole CCS Scans and optical depth measurements: Introducing GRASP-CCS},
author = {B. Torres and O. Dubovik and R. González and E. Diez and D. Fuertes and M. Herreras and T. Lapionok and M. Momoi and L. Blarel and P. Goloub and A. Lopatin and C. Toledano and A. Sinyuk and A. Smirnov and I. Slutsker and T. Eck and E. Lind},
year = {2024},
date = {2024-09-17},
address = {College Park, EEUU},
organization = {AERONET Science and Application Exchange 2024, 17-19 Sep 2024},
keywords = {aerosol characterization, AOD, aureole scans, GRASP},
pubstate = {published},
tppubtype = {conference}
}
|
| 3. | J. Muñiz-Rosado; A. Cazorla; R. Román; A. Haefele; M. van Hove; S. Brunamonti; C. Herrero del Barrio; J. A. Bravo-Aranda; M. J. Granados-Muñoz; A. del Águila; A. Díaz-Zurita; M. E. Herrera; F.G. Wienhold; C. Toledano; L. Alados-Arboledas; F. Navas-Guzmán Evaluation of aerosol properties from sun-photometer and ceilometer by means GRASP algorithm Conference 2024 Annual Meeting of the European Meteorological Society (EMS 2024), 2-6 Sep 2024 Barcelona, Spain, 2024. @conference{Muñiz-Rosado2024b,
title = {Evaluation of aerosol properties from sun-photometer and ceilometer by means GRASP algorithm},
author = {J. Muñiz-Rosado and A. Cazorla and R. Román and A. Haefele and M. van Hove and S. Brunamonti and C. Herrero del Barrio and J. A. Bravo-Aranda and M. J. Granados-Muñoz and A. del Águila and A. Díaz-Zurita and M. E. Herrera and F.G. Wienhold and C. Toledano and L. Alados-Arboledas and F. Navas-Guzmán},
year = {2024},
date = {2024-09-02},
address = {Barcelona, Spain},
organization = {2024 Annual Meeting of the European Meteorological Society (EMS 2024), 2-6 Sep 2024},
keywords = {Aerosol Properties, GRASP},
pubstate = {published},
tppubtype = {conference}
}
|
2023
|
| 4. | Sara Herrero-Anta; Roberto Román; David Mateos; Ramiro González; Juan Carlos Antuña-Sánchez; Marcos Herreras-Giralda; Antonio Fernando Almansa; Daniel González-Fernández; Celia Herrero del Barrio; Carlos Toledano; Victoria Eugenia Cachorro; Ángel Máximo de Frutos Retrieval of aerosol properties from zenith sky radiance measurements Journal Article In: Atmospheric Measurement Techniques, vol. 16, no. 19, pp. 4423–4443, 2023. @article{Herrero-Anta2023,
title = {Retrieval of aerosol properties from zenith sky radiance measurements},
author = {Sara Herrero-Anta and Roberto Román and David Mateos and Ramiro González and Juan Carlos Antuña-Sánchez and Marcos Herreras-Giralda and Antonio Fernando Almansa and Daniel González-Fernández and Celia Herrero del Barrio and Carlos Toledano and Victoria Eugenia Cachorro and Ángel Máximo de Frutos},
url = {https://amt.copernicus.org/articles/16/4423/2023/},
doi = {10.5194/amt-16-4423-2023},
year = {2023},
date = {2023-10-09},
urldate = {2023-10-09},
journal = {Atmospheric Measurement Techniques},
volume = {16},
number = {19},
pages = {4423–4443},
abstract = {This study explores the potential to retrieve aerosol properties with the GRASP algorithm (Generalized Retrieval of Atmosphere and Surface Properties) using as input measurements of zenith sky radiance (ZSR), which are sky radiance values measured in the zenith direction, recorded at four wavelengths by a ZEN-R52 radiometer. To this end, the ZSR measured at 440, 500, 675 and 870?nm by a ZEN-R52 (ZSRZEN), installed in Valladolid (Spain), is employed. This instrument is calibrated by intercomparing the signal of each channel with coincident ZSR values simulated (ZSRSIM) at the same wavelengths with a radiative transfer model (RTM). These simulations are carried out using the GRASP forward module as RTM and the aerosol information from a co-located CE318 photometer belonging to AERONET (AErosol RObotic NETwork) as input. The dark signal and the signal dependence on temperature are characterized and included in the calibration process. The uncertainties for each channel are quantified by an intercomparison with a co-located CE318 photometer, obtaining lower values for shorter wavelengths; they are between 3?% for 440?nm and 21?% for 870?nm. The proposed inversion strategy for the aerosol retrieval using the ZSRZEN measurements as input, i.e. so-called GRASP-ZEN, assumes the aerosol as an external mixture of five pre-calculated aerosol types. A sensitivity analysis is conducted using synthetic ZSRZEN measurements, pointing out that these measurements are sensitive to aerosol load and type. It also assesses that the retrieved aerosol optical depth (AOD) values in general overestimate the reference ones by 0.03, 0.02, 0.02 and 0.01 for 440, 500, 675 and 870?nm, respectively. The calibrated ZSRZEN measurements, recorded during 2.5 years at Valladolid, are inverted by the GRASP-ZEN strategy to retrieve some aerosol properties like AOD. The retrieved AOD shows a high correlation with respect to independent values obtained from a co-located AERONET CE318 photometer, with determination coefficients (r2) of 0.86, 0.85, 0.79 and 0.72 for 440, 500, 675 and 870?nm, respectively, and finding uncertainties between 0.02 and 0.03 with respect to the AERONET values. Finally, the retrieval of other aerosol properties, like aerosol volume concentration for total, fine and coarse modes (VCT, VCF and VCC, respectively), is also explored. The comparison against independent values from AERONET presents r2 values of 0.57, 0.56 and 0.66 and uncertainties of 0.009, 0.016 and 0.02?µm3?µm?2 for VCT, VCF and VCC, respectively},
keywords = {aerosol inversion, AOD, GRASP, zenith sky radiance},
pubstate = {published},
tppubtype = {article}
}
This study explores the potential to retrieve aerosol properties with the GRASP algorithm (Generalized Retrieval of Atmosphere and Surface Properties) using as input measurements of zenith sky radiance (ZSR), which are sky radiance values measured in the zenith direction, recorded at four wavelengths by a ZEN-R52 radiometer. To this end, the ZSR measured at 440, 500, 675 and 870?nm by a ZEN-R52 (ZSRZEN), installed in Valladolid (Spain), is employed. This instrument is calibrated by intercomparing the signal of each channel with coincident ZSR values simulated (ZSRSIM) at the same wavelengths with a radiative transfer model (RTM). These simulations are carried out using the GRASP forward module as RTM and the aerosol information from a co-located CE318 photometer belonging to AERONET (AErosol RObotic NETwork) as input. The dark signal and the signal dependence on temperature are characterized and included in the calibration process. The uncertainties for each channel are quantified by an intercomparison with a co-located CE318 photometer, obtaining lower values for shorter wavelengths; they are between 3?% for 440?nm and 21?% for 870?nm. The proposed inversion strategy for the aerosol retrieval using the ZSRZEN measurements as input, i.e. so-called GRASP-ZEN, assumes the aerosol as an external mixture of five pre-calculated aerosol types. A sensitivity analysis is conducted using synthetic ZSRZEN measurements, pointing out that these measurements are sensitive to aerosol load and type. It also assesses that the retrieved aerosol optical depth (AOD) values in general overestimate the reference ones by 0.03, 0.02, 0.02 and 0.01 for 440, 500, 675 and 870?nm, respectively. The calibrated ZSRZEN measurements, recorded during 2.5 years at Valladolid, are inverted by the GRASP-ZEN strategy to retrieve some aerosol properties like AOD. The retrieved AOD shows a high correlation with respect to independent values obtained from a co-located AERONET CE318 photometer, with determination coefficients (r2) of 0.86, 0.85, 0.79 and 0.72 for 440, 500, 675 and 870?nm, respectively, and finding uncertainties between 0.02 and 0.03 with respect to the AERONET values. Finally, the retrieval of other aerosol properties, like aerosol volume concentration for total, fine and coarse modes (VCT, VCF and VCC, respectively), is also explored. The comparison against independent values from AERONET presents r2 values of 0.57, 0.56 and 0.66 and uncertainties of 0.009, 0.016 and 0.02?µm3?µm?2 for VCT, VCF and VCC, respectively |
| 5. | S. Herrero-Anta; R. Román; D. Mateos; R. González; J. C. Antuña-Sánchez; M. Herreras-Giralda; A. F. Almansa; D. González-Fernández; C. Herrero del Barrio; C. Toledano; V. E. Cachorro; Á. M. Frutos Retrieval of aerosol properties from zenith sky radiance measurements Conference European Aerosol Conference 2023, Málaga, Spain, 2023. @conference{Herrero-Anta2023c,
title = {Retrieval of aerosol properties from zenith sky radiance measurements},
author = {S. Herrero-Anta and R. Román and D. Mateos and R. González and J. C. Antuña-Sánchez and M. Herreras-Giralda and A. F. Almansa and D. González-Fernández and C. Herrero del Barrio and C. Toledano and V. E. Cachorro and Á. M. Frutos},
year = {2023},
date = {2023-09-04},
urldate = {2023-09-04},
publisher = {European Aerosol Conference 2023},
address = {Málaga, Spain},
keywords = {aerosol inversion, AOD, GRASP, sky radiance},
pubstate = {published},
tppubtype = {conference}
}
|
| 6. | S. Herrero-Anta; R. Román, D. Mateos, J.C. Antuña-Sánchez, C. Toledano, F. Almansa, R. González, M. Herreras-Giralda, D. González-Fernández, C. Herrero del Barrio, V.E. Cachorro; A.M. de Frutos Retrieval of aerosol properties from zenith sky radiance measurements Conference Workshop on “Recent advancements in remote sensing and modeling of aerosols, clouds and surfaces” GRASP ACE Summer school, Lille, France, 2023. @conference{Herrero-Anta2023b,
title = {Retrieval of aerosol properties from zenith sky radiance measurements },
author = {S. Herrero-Anta and R. Román, D. Mateos, J.C. Antuña-Sánchez, C. Toledano, F. Almansa, R. González, M. Herreras-Giralda, D. González-Fernández, C. Herrero del Barrio, V.E. Cachorro and A.M. de Frutos},
year = {2023},
date = {2023-05-22},
urldate = {2023-05-22},
address = {Lille, France},
organization = {Workshop on “Recent advancements in remote sensing and modeling of aerosols, clouds and surfaces” GRASP ACE Summer school,},
keywords = {aerosol inversion, AOD, GRASP, sky radiance},
pubstate = {published},
tppubtype = {conference}
}
|
| 7. | Elena Bazo; María J. Granados-Muñoz; Roberto Román; Juan Antonio Bravo-Aranda; Alberto Cazorla; Antonio Valenzuela; Ramiro González; Francisco José Olmo; Lucas Alados-Arboledas Evaluation of the vertically-resolved aerosol radiative effect on shortwave and longwave ranges using sun-sky photometer and ceilometer measurements Journal Article In: Atmospheric Research, vol. 282, pp. 106517, 2023, ISSN: 0169-8095. @article{Bazo2023,
title = {Evaluation of the vertically-resolved aerosol radiative effect on shortwave and longwave ranges using sun-sky photometer and ceilometer measurements},
author = {Elena Bazo and María J. Granados-Muñoz and Roberto Román and Juan Antonio Bravo-Aranda and Alberto Cazorla and Antonio Valenzuela and Ramiro González and Francisco José Olmo and Lucas Alados-Arboledas},
url = {https://www.sciencedirect.com/science/article/pii/S0169809522005038},
doi = {https://doi.org/10.1016/j.atmosres.2022.106517},
issn = {0169-8095},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {Atmospheric Research},
volume = {282},
pages = {106517},
abstract = {The aerosol radiative effect (ARE) is one of the atmospheric components still affected by large uncertainty. One of the causes is related to the fact that the longwave (LW) component is usually neglected, even though it is necessary for an accurate quantification of the ARE together with the shortwave component (SW). In this study we have developed a methodology based on the GAME (Global Atmospheric Model) radiative transfer model (RTM) that allows to obtain the radiative effect of the atmospheric aerosol for both spectral ranges in an automated way. The microphysical and optical properties necessary to feed the RTM have been obtained through the GRASP (Generalized Retrieval of Aerosol and Surface Properties) algorithm, with the combination of ceilometer and sun-sky photometer data. Data measured in Granada (Spain) during 2017 have been used for the evaluation and implementation of this methodology. According to the results, the ARE in the SW spectral range (ARESW) varies between 0 and ? 50 Wm?2 for most of the data, whereas the ARE in the LW range (ARELW) varies between 0 and 5 Wm?2, at heights near the surface. In general, the obtained results agree with those found in the literature, with negative values in the SW range (cooling effect) and positive values in the LW (heating effect). The seasonal analysis shows that, for both components, the ARE is more important during the spring and summer seasons, when the aerosol load is greater, as expected. The analysis of the aerosol heating rate (AHR) shows positive values in the SW and negative values in the LW range. The majority of the AHRSW data varies between 0 and 1 Kd?1 during the year whereas the AHRLW does it between 0 and ? 0.15 Kd?1. The seasonal analysis of the AHR shows that the greater monthly average values are found during spring, however there is not much variability along the year, with the exception of February, under the effects of an extreme dust intrusion. The mineral dust particles in this event cause an ARESW of ?130 Wm?2 and an ARELW of 23 Wm?2 (ARELW/ARESW = 17%), thus pointing out that the LW component should not be neglected for coarse mode particles. Additionally, it is observed that the vertical distribution of the aerosol layers strongly influences the ARE and the AHR obtained profiles, affecting the way the atmospheric cooling/heating occurs in the vertical coordinate.},
keywords = {aerosol radiative properties, ceilometer, GAME, GRASP, Longwave radiative effect, Sun-sky photometer},
pubstate = {published},
tppubtype = {article}
}
The aerosol radiative effect (ARE) is one of the atmospheric components still affected by large uncertainty. One of the causes is related to the fact that the longwave (LW) component is usually neglected, even though it is necessary for an accurate quantification of the ARE together with the shortwave component (SW). In this study we have developed a methodology based on the GAME (Global Atmospheric Model) radiative transfer model (RTM) that allows to obtain the radiative effect of the atmospheric aerosol for both spectral ranges in an automated way. The microphysical and optical properties necessary to feed the RTM have been obtained through the GRASP (Generalized Retrieval of Aerosol and Surface Properties) algorithm, with the combination of ceilometer and sun-sky photometer data. Data measured in Granada (Spain) during 2017 have been used for the evaluation and implementation of this methodology. According to the results, the ARE in the SW spectral range (ARESW) varies between 0 and ? 50 Wm?2 for most of the data, whereas the ARE in the LW range (ARELW) varies between 0 and 5 Wm?2, at heights near the surface. In general, the obtained results agree with those found in the literature, with negative values in the SW range (cooling effect) and positive values in the LW (heating effect). The seasonal analysis shows that, for both components, the ARE is more important during the spring and summer seasons, when the aerosol load is greater, as expected. The analysis of the aerosol heating rate (AHR) shows positive values in the SW and negative values in the LW range. The majority of the AHRSW data varies between 0 and 1 Kd?1 during the year whereas the AHRLW does it between 0 and ? 0.15 Kd?1. The seasonal analysis of the AHR shows that the greater monthly average values are found during spring, however there is not much variability along the year, with the exception of February, under the effects of an extreme dust intrusion. The mineral dust particles in this event cause an ARESW of ?130 Wm?2 and an ARELW of 23 Wm?2 (ARELW/ARESW = 17%), thus pointing out that the LW component should not be neglected for coarse mode particles. Additionally, it is observed that the vertical distribution of the aerosol layers strongly influences the ARE and the AHR obtained profiles, affecting the way the atmospheric cooling/heating occurs in the vertical coordinate. |
2022
|
| 8. | Elena Bazo; María José Granados-Muñoz; Roberto Román; Juan Antonio Bravo-Aranda; Alberto Cazorla; Antonio Valenzuela; Francisco José Olmo; Lucas Alados-Arboledas Evaluation of the aerosol radiative effects based on GAME model and GRASPpac retrievals applied to AERONET/ICENET stations Conference 11th International Aerosol Conference (IAC2022) Athens, Greece, 2022. @conference{Bazo2022,
title = {Evaluation of the aerosol radiative effects based on GAME model and GRASPpac retrievals applied to AERONET/ICENET stations},
author = {Elena Bazo and María José Granados-Muñoz and Roberto Román and Juan Antonio Bravo-Aranda and Alberto Cazorla and Antonio Valenzuela and Francisco José Olmo and Lucas Alados-Arboledas},
year = {2022},
date = {2022-09-05},
address = {Athens, Greece},
organization = {11th International Aerosol Conference (IAC2022)},
keywords = {AERONET, Aerosol radiative effects, GRASP},
pubstate = {published},
tppubtype = {conference}
}
|
| 9. | A. Salguero; J. L. Guerrero-Rascado; M. João Costa; R. Román; A. Cazorla; A. Serrano; M. Pandolf; F. Molero; R. Barragán; M. Sicard; C. Córdoba-Jabonero; D. Bortoli; A. Comerón; F. Tiago Couto; D. C. F. dos Santos Oliveira; R. González; C.Gíl-Día; C. Muñoz-Porcar; D. Pérez-Ramírez; A. Rodríguez-Gómez; M. Herreras-Giralda; J. Abril-Gago; M.Á. López-Cayuela; C.V. Carvajal-Pérez; A. Barreto; L. Alados-Arboledas Characterization of Cumbre Vieja volcanic plumes detected over the Iberian Peninsula using GRASP algorithm retrievals from a set of remote sensing instrumentation Conference 11th International Aerosol Conference (IAC2022) Athens, Greece, 2022. @conference{Salguero2022,
title = {Characterization of Cumbre Vieja volcanic plumes detected over the Iberian Peninsula using GRASP algorithm retrievals from a set of remote sensing instrumentation},
author = {A. Salguero and J. L. Guerrero-Rascado and M. João Costa and R. Román and A. Cazorla and A. Serrano and M. Pandolf and F. Molero and R. Barragán and M. Sicard and C. Córdoba-Jabonero and D. Bortoli and A. Comerón and F. Tiago Couto and D. C. F. dos Santos Oliveira and R. González and C.Gíl-Día and C. Muñoz-Porcar and D. Pérez-Ramírez and A. Rodríguez-Gómez and M. Herreras-Giralda and J. Abril-Gago and M.Á. López-Cayuela and C.V. Carvajal-Pérez and A. Barreto and L. Alados-Arboledas},
year = {2022},
date = {2022-09-05},
address = {Athens, Greece},
organization = {11th International Aerosol Conference (IAC2022)},
keywords = {Cumbre Vieja volcanic eruption, GRASP, volcanic aerosol},
pubstate = {published},
tppubtype = {conference}
}
|
| 10. | S. Herrero; R. Román; D. Mateos; J.C. Antuña-Sánchez; C. Toledano; F. Almansa; R. Gonzalez; M. Herreras-Giralda; D. González-Fernández; V.E. Cachorro; A.M. de Frutos Retrieval of aerosol properties from zenith sky radiance measurements Conference International Radiation Symposium Thessaloniki, 2022. @conference{Herrero2022,
title = {Retrieval of aerosol properties from zenith sky radiance measurements},
author = {S. Herrero and R. Román and D. Mateos and J.C. Antuña-Sánchez and C. Toledano and F. Almansa and R. Gonzalez and M. Herreras-Giralda and D. González-Fernández and V.E. Cachorro and A.M. de Frutos},
year = {2022},
date = {2022-07-04},
urldate = {2022-07-04},
address = {Thessaloniki},
organization = {International Radiation Symposium},
keywords = {aerosol, GRASP, zenith sky radiance},
pubstate = {published},
tppubtype = {conference}
}
|
| 11. | R. Román; J. C. Antuña-Sánchez; V. E. Cachorro; C. Toledano; B. Torres; D. Mateos; D. Fuertes; C. López; R. González; T. Lapionok; M. Herreras-Giralda; O. Dubovik; A.M. de Frutos Retrieval of Aerosol Properties with an all-sky Camera Conference International Radiation Symposium Thessaloniki, Greece, 2022. @conference{Román2022c,
title = {Retrieval of Aerosol Properties with an all-sky Camera},
author = {R. Román and J. C. Antuña-Sánchez and V. E. Cachorro and C. Toledano and B. Torres and D. Mateos and D. Fuertes and C. López and R. González and T. Lapionok and M. Herreras-Giralda and O. Dubovik and A.M. de Frutos},
year = {2022},
date = {2022-07-04},
urldate = {2022-07-04},
address = {Thessaloniki, Greece},
organization = {International Radiation Symposium},
keywords = {Aerosol Properties, all-sky camera, GRASP},
pubstate = {published},
tppubtype = {conference}
}
|
| 12. | R. Román; D. González-Fernández; C. Toledano; C. Emde; V. Cachorro; D. Mateos; S. Herrero-Anta; J. C. Antuña-Sánchez; R. González; J.C. Antuña-Marrero; B. Mayer; A. Calle; A.M. de Frutos Impact of clouds on cloud-free sky radiances in a partially cloudy scenario Conference International Radiation Symposium Thessaloniki, Greece, 2022. @conference{Román2022b,
title = {Impact of clouds on cloud-free sky radiances in a partially cloudy scenario},
author = {R. Román and D. González-Fernández and C. Toledano and C. Emde and V. Cachorro and D. Mateos and S. Herrero-Anta and J. C. Antuña-Sánchez and R. González and J.C. Antuña-Marrero and B. Mayer and A. Calle and A.M. de Frutos},
year = {2022},
date = {2022-07-04},
urldate = {2022-07-04},
address = {Thessaloniki, Greece},
organization = {International Radiation Symposium},
keywords = {all-sky camera, clouds, GRASP, sky radiance},
pubstate = {published},
tppubtype = {conference}
}
|
| 13. | R. Román; J. C. Antuña-Sánchez; V. E. Cachorro; C. Toledano; B. Torres; D. Mateos; D. Fuertes; C. López; R. González; T. Lapionok; M. Herreras-Giralda; O. Dubovik; Á. M. Frutos Retrieval of aerosol properties using relative radiance measurements from an all-sky camera Journal Article In: Atmospheric Measurement Techniques, vol. 15, no. 2, pp. 407–433, 2022. @article{Román2022,
title = {Retrieval of aerosol properties using relative radiance measurements from an all-sky camera},
author = {R. Román and J. C. Antuña-Sánchez and V. E. Cachorro and C. Toledano and B. Torres and D. Mateos and D. Fuertes and C. López and R. González and T. Lapionok and M. Herreras-Giralda and O. Dubovik and Á. M. Frutos},
url = {https://amt.copernicus.org/articles/15/407/2022/},
doi = {10.5194/amt-15-407-2022},
year = {2022},
date = {2022-01-27},
urldate = {2022-01-01},
journal = {Atmospheric Measurement Techniques},
volume = {15},
number = {2},
pages = {407--433},
abstract = {This paper explores the potential of all-sky cameras to retrieve aerosol properties with the GRASP code (Generalized Retrieval of Atmosphere and Surface Properties). To this end, normalized sky radiances (NSRs) extracted from an all-sky camera at three effective wavelengths (467, 536 and 605?nm) are used in this study. NSR observations are a set of relative (uncalibrated) sky radiances in arbitrary units. NSR observations have been simulated for different aerosol loads and types with the forward radiative transfer module of GRASP, indicating that NSR observations contain information about the aerosol type, as well as about the aerosol optical depth (AOD), at least for low and moderate aerosol loads. An additional sensitivity study with synthetic data has been carried out to quantify the theoretical accuracy and precision of the aerosol properties (AOD, size distribution parameters, etc.) retrieved by GRASP using NSR observations as input. As a result, the theoretical accuracy of AOD is within ±0.02 for AOD values lower than or equal to 0.4, while the theoretical precision goes from 0.01 to 0.05 when AOD at 467?nm varies from 0.1 to 0.5. NSR measurements recorded at Valladolid (Spain) with an all-sky camera for more than 2 years have been inverted with GRASP. The retrieved aerosol properties are compared with independent values provided by co-located AERONET (AErosol RObotic NETwork) measurements. AODs from both data sets correlate with determination coefficient (r2) values of about 0.87. Finally, the novel multi-pixel approach of GRASP is applied to daily camera radiances together by constraining the temporal variation in certain aerosol properties. This temporal linkage (multi-pixel approach) provides promising results, reducing the highly temporal variation in some aerosol properties retrieved with the standard (one by one or single-pixel) approach. This work implies an advance in the use of all-sky cameras for the retrieval of aerosol properties.},
keywords = {aerosol, all-sky camera, GRASP, retrieval},
pubstate = {published},
tppubtype = {article}
}
This paper explores the potential of all-sky cameras to retrieve aerosol properties with the GRASP code (Generalized Retrieval of Atmosphere and Surface Properties). To this end, normalized sky radiances (NSRs) extracted from an all-sky camera at three effective wavelengths (467, 536 and 605?nm) are used in this study. NSR observations are a set of relative (uncalibrated) sky radiances in arbitrary units. NSR observations have been simulated for different aerosol loads and types with the forward radiative transfer module of GRASP, indicating that NSR observations contain information about the aerosol type, as well as about the aerosol optical depth (AOD), at least for low and moderate aerosol loads. An additional sensitivity study with synthetic data has been carried out to quantify the theoretical accuracy and precision of the aerosol properties (AOD, size distribution parameters, etc.) retrieved by GRASP using NSR observations as input. As a result, the theoretical accuracy of AOD is within ±0.02 for AOD values lower than or equal to 0.4, while the theoretical precision goes from 0.01 to 0.05 when AOD at 467?nm varies from 0.1 to 0.5. NSR measurements recorded at Valladolid (Spain) with an all-sky camera for more than 2 years have been inverted with GRASP. The retrieved aerosol properties are compared with independent values provided by co-located AERONET (AErosol RObotic NETwork) measurements. AODs from both data sets correlate with determination coefficient (r2) values of about 0.87. Finally, the novel multi-pixel approach of GRASP is applied to daily camera radiances together by constraining the temporal variation in certain aerosol properties. This temporal linkage (multi-pixel approach) provides promising results, reducing the highly temporal variation in some aerosol properties retrieved with the standard (one by one or single-pixel) approach. This work implies an advance in the use of all-sky cameras for the retrieval of aerosol properties. |
2021
|
| 14. | A. Bereinkua; D. Pérez-Ramírez; H. Lyamani; A. Cazorla; R. Román; R. González; D. Bermejo-Pantaleón; S.D. Aguirre-García; S. Aranda; P. Cariñanos; M. J. Granados-Muñoz; J. A. Bravo-Aranda; J. Abril-Gago; L. Alados-Arboledas; J. L. Guerrero-Rascado First characterization of aerosol profiles retrieved from ceilometer and sun-photometer by the GRASP algorithm at the rural Guadiana-UGR station Conference European Lidar Conference 2021 (ELC2021) Granada, Spain, 2021. @conference{Bereinkua2021,
title = {First characterization of aerosol profiles retrieved from ceilometer and sun-photometer by the GRASP algorithm at the rural Guadiana-UGR station},
author = { A. Bereinkua and D. Pérez-Ramírez and H. Lyamani and A. Cazorla and R. Román and R. González and D. Bermejo-Pantaleón and S.D. Aguirre-García and S. Aranda and P. Cariñanos and M. J. Granados-Muñoz and J. A. Bravo-Aranda and J. Abril-Gago and L. Alados-Arboledas and J. L. Guerrero-Rascado},
year = {2021},
date = {2021-11-16},
address = {Granada, Spain},
organization = {European Lidar Conference 2021 (ELC2021)},
keywords = {aerosol profiles, ceilometer, GRASP, sun-photometer},
pubstate = {published},
tppubtype = {conference}
}
|
2020
|
| 15. | A. Barreto; R. Román; N. Prats; A. Lopatin; D. Fuertes; A.J. Berjón; F. Almansa; E. Cuevas; M. Yela. Aerosol Profiles From MPL-Lidar And Photometric Measurements Using GRASP In A Subtropical North Atlantic Site. Evaluation With In-Situ Data. Conference European Lidar Conference 2020 (ELC 2020), University of Granada Granada, Spain, 2020. @conference{Barreto2020,
title = {Aerosol Profiles From MPL-Lidar And Photometric Measurements Using GRASP In A Subtropical North Atlantic Site. Evaluation With In-Situ Data.},
author = {A. Barreto and R. Román and N. Prats and A. Lopatin and D. Fuertes and A.J. Berjón and F. Almansa and E. Cuevas and M. Yela.},
year = {2020},
date = {2020-11-13},
booktitle = {European Lidar Conference 2020 (ELC 2020)},
address = {Granada, Spain},
organization = {University of Granada},
keywords = {aerosol, GRASP, in-situ, LIDAR},
pubstate = {published},
tppubtype = {conference}
}
|
| 16. | L. Alados-Arboledas; R. Román; J.A. Benavent-Oltra; A. Cazorla; J.A. Casquero-Vera; G. Titos; H. Lyamani; P. Ortíz-Amezcua; G.A. Moreira; A.E. Bedoya-Velasquez; D. Pérez-Ramírez; J.L. Guerrero-Rascado; F.J. Olmo Assessment of the atmospheric aerosol properties retrieved by GRASP algorithm during SLOPE II campaign Conference European Lidar Conference 2020 (ELC 2020), Universidad de Granada Granada, Spain, 2020. @conference{Alados-Arboledas2020,
title = {Assessment of the atmospheric aerosol properties retrieved by GRASP algorithm during SLOPE II campaign},
author = {L. Alados-Arboledas and R. Román and J.A. Benavent-Oltra and A. Cazorla and J.A. Casquero-Vera and G. Titos and H. Lyamani and P. Ortíz-Amezcua and G.A. Moreira and A.E. Bedoya-Velasquez and D. Pérez-Ramírez and J.L. Guerrero-Rascado and F.J. Olmo },
year = {2020},
date = {2020-11-13},
booktitle = {European Lidar Conference 2020 (ELC 2020)},
address = {Granada, Spain},
organization = {Universidad de Granada},
keywords = {aerosol, GRASP},
pubstate = {published},
tppubtype = {conference}
}
|
2019
|
| 17. | J.A. Benavent-Oltra; R. Román; J.A. Casquero-Vera; D. Pérez-Ramirez; H. Lyamani; P. Ortiz-Amezcua; A.E. Bedoya-Velasquez; J.L. Guerrero-Rascado; A. Lopatin; O. Dubovik; A. Cazorla; G. Titos; F.J. Olmo; L. Alados-Arboledas GRASP daytime profiles of atmospheric aerosol microphysics in SLOPE campaign Conference Final ACTRIS-2 General Meeting 2019, ACTRIS Darmstadt, Germany, 2019. @conference{Benavent-Oltra2019,
title = {GRASP daytime profiles of atmospheric aerosol microphysics in SLOPE campaign},
author = {J.A. Benavent-Oltra and R. Román and J.A. Casquero-Vera and D. Pérez-Ramirez and H. Lyamani and P. Ortiz-Amezcua and A.E. Bedoya-Velasquez and J.L. Guerrero-Rascado and A. Lopatin and O. Dubovik; A. Cazorla and G. Titos and F.J. Olmo and L. Alados-Arboledas},
year = {2019},
date = {2019-04-01},
booktitle = {Final ACTRIS-2 General Meeting 2019},
address = {Darmstadt, Germany},
organization = {ACTRIS},
keywords = {aerosol, GRASP},
pubstate = {published},
tppubtype = {conference}
}
|
| 18. | J.A. Benavent-Oltra; R. Román; J.A. Casquero-Vera; D. Pérez-Ramirez; H. Lyamani; P. Ortiz-Amezcua; A.E. Bedoya-Velasquez; G. Moreira; A. Lopatin; A. Barreto; J.L Guerrero-Rascado; D. Fuertes; C. Toledano; B. Torres; O. Dubovik; P. Goloub; F.J. Olmo; L. Alados-Arboledas Using GRASP with lidar, lunar photometer and sky-images to retrieve atmospheric aerosol microphysics night-time profiles Conference Final ACTRIS-2 General Meeting 2019, ACTRIS Darmstadt, Germany, 2019. @conference{Benavent-Oltra2019b,
title = {Using GRASP with lidar, lunar photometer and sky-images to retrieve atmospheric aerosol microphysics night-time profiles},
author = {J.A. Benavent-Oltra and R. Román and J.A. Casquero-Vera and D. Pérez-Ramirez and H. Lyamani and P. Ortiz-Amezcua and A.E. Bedoya-Velasquez and G. Moreira and A. Lopatin and A. Barreto and J.L Guerrero-Rascado and D. Fuertes and C. Toledano and B. Torres and O. Dubovik and P. Goloub and F.J. Olmo and L. Alados-Arboledas},
year = {2019},
date = {2019-04-01},
booktitle = {Final ACTRIS-2 General Meeting 2019},
address = {Darmstadt, Germany},
organization = {ACTRIS},
keywords = {atmospheric aerosols, GRASP, lunar photometry, sky camera},
pubstate = {published},
tppubtype = {conference}
}
|
| 19. | Granados-Muñoz, M.J. ;Sicard, M. ;Román, R. ;Benavent-Oltra, J.A. ;Barragán, R. ;Brogniez, G. ;Denjean, C. ;Mallet, M. ;Formenti, P. ;Torres, B. ;Alados-Arboledas, L. Impact of mineral dust on shortwave and longwave radiation: evaluation of different vertically resolved parameterizations in 1-D radiative transfer computations Journal Article In: Atmospheric Chemistry and Physics, vol. 19, pp. 523 - 542, 2019. @article{GranadosACP2019,
title = {Impact of mineral dust on shortwave and longwave radiation: evaluation of different vertically resolved parameterizations in 1-D radiative transfer computations},
author = {Granados-Muñoz, M.J. ;Sicard, M. ;Román, R. ;Benavent-Oltra, J.A. ;Barragán, R. ;Brogniez, G. ;Denjean, C. ;Mallet, M. ;Formenti, P. ;Torres, B. ;Alados-Arboledas, L.},
doi = {https://doi.org/10.5194/acp-19-523-2019},
year = {2019},
date = {2019-01-01},
journal = {Atmospheric Chemistry and Physics},
volume = {19},
pages = {523 - 542},
keywords = {GRASP, LIDAR, Radiative forcing, Water vapor},
pubstate = {published},
tppubtype = {article}
}
|
2018
|
| 20. | J.A. Benavent-Oltra; R. Román; J.A. Casquero-Vera; D. Pérez-Ramírez; H. Lyamani; P. Ortiz-Amezcua; A.E. Bedoya-Velasquez; J.L. Guerrero-Rascado; O. Dubovik; F.J. Olmo; L. Alados-Arboledas Aerosol vertical properties retrieved by GRASP code during SLOPE I and II campaigns Conference 4th ACTRIS-2 WP2 Workshop, Atmospheric Remote Sensing Laboratory, University of Hertfordshire Hatfield, United Kindom, 2018. @conference{Benavent-Oltra2018,
title = {Aerosol vertical properties retrieved by GRASP code during SLOPE I and II campaigns},
author = {J.A. Benavent-Oltra and R. Román and J.A. Casquero-Vera and D. Pérez-Ramírez and H. Lyamani and P. Ortiz-Amezcua and A.E. Bedoya-Velasquez and J.L. Guerrero-Rascado and O. Dubovik and F.J. Olmo and L. Alados-Arboledas},
year = {2018},
date = {2018-11-19},
booktitle = {4th ACTRIS-2 WP2 Workshop},
address = {Hatfield, United Kindom},
organization = {Atmospheric Remote Sensing Laboratory, University of Hertfordshire},
keywords = {aerosol optical depth, GRASP},
pubstate = {published},
tppubtype = {conference}
}
|
| 21. | J.A. Benavent-Oltra; R. Román; J.A. Casquero-Vera; D. Pérez-Ramírez; H. Lyamani; P. Ortiz-Amezcua; A.E. Bedoya-Velasquez; J.L. Guerrero-Rascado; O. Dubovik; F.J. Olmo; L. Alados-Arboledas Aerosol vertical properties retrieved by GRASP code during SLOPE I and II campaigns Conference The X Workshop Lidar Measurements in Latin America (WLMLA), Universidad Nacional de Colombia Medellín, Colombia, 2018. @conference{Benavent-Oltra2018b,
title = {Aerosol vertical properties retrieved by GRASP code during SLOPE I and II campaigns},
author = {J.A. Benavent-Oltra and R. Román and J.A. Casquero-Vera and D. Pérez-Ramírez and H. Lyamani and P. Ortiz-Amezcua and A.E. Bedoya-Velasquez and J.L. Guerrero-Rascado and O. Dubovik and F.J. Olmo and L. Alados-Arboledas},
year = {2018},
date = {2018-11-19},
booktitle = {The X Workshop Lidar Measurements in Latin America (WLMLA)},
address = {Medellín, Colombia},
organization = {Universidad Nacional de Colombia},
keywords = {aerosol optical depth, GRASP},
pubstate = {published},
tppubtype = {conference}
}
|
| 22. | J.A. Benavent-Oltra; R. Román; D. Pérez-Ramírez; F.J.S. Lopes; G.A. Moreira; A.E. Bedoya-Velasquez; P. Ortiz-Amezcua; J.A. Casquero-Vera; H. Lyamani; J.J. da Silva; A. Lopatin; E. Landulfo; P. Artaxo; E. Landulfo; J.L. Guerrero-Rascado; F.J. Olmo; L. Alados-Arboledas Statistical analysis of aerosol properties retrieved by GRASP over São Paulo (Brazil) Conference 4th ACTRIS-2 WP2 Workshop, ACTRIS Hatfield, United Kindom, 2018. @conference{Benavent-Oltra2018d,
title = {Statistical analysis of aerosol properties retrieved by GRASP over São Paulo (Brazil)},
author = {J.A. Benavent-Oltra and R. Román and D. Pérez-Ramírez and F.J.S. Lopes and G.A. Moreira and A.E. Bedoya-Velasquez and P. Ortiz-Amezcua and J.A. Casquero-Vera and H. Lyamani and J.J. da Silva and A. Lopatin and E. Landulfo and P. Artaxo and E. Landulfo and J.L. Guerrero-Rascado and F.J. Olmo and L. Alados-Arboledas},
year = {2018},
date = {2018-11-19},
booktitle = {4th ACTRIS-2 WP2 Workshop},
address = {Hatfield, United Kindom},
organization = {ACTRIS},
keywords = {aerosol, aerosol optical depth, brazil, GRASP},
pubstate = {published},
tppubtype = {conference}
}
|
| 23. | J.A. Benavent-Oltra; R. Román; D. Pérez-Ramírez; F.J.S. Lopes; G.A. Moreira; A.E. Bedoya-Velasquez; P. Ortiz-Amezcua; J.A. Casquero-Vera; H. Lyamani; J.J. da Silva; A. Lopatin; E. Landulfo; P. Artaxo; E. Landulfo; J.L. Guerrero-Rascado; F.J. Olmo; L. Alados-Arboledas Statistical analysis of aerosol properties retrieved by GRASP over São Paulo (Brazil) Conference The X Workshop Lidar Measurements in Latin America (WLMLA), Universidad Nacional de Colombia Medellín, Colombia, 2018. @conference{Benavent-Oltra2018f,
title = {Statistical analysis of aerosol properties retrieved by GRASP over São Paulo (Brazil)},
author = {J.A. Benavent-Oltra and R. Román and D. Pérez-Ramírez and F.J.S. Lopes and G.A. Moreira and A.E. Bedoya-Velasquez and P. Ortiz-Amezcua and J.A. Casquero-Vera and H. Lyamani and J.J. da Silva and A. Lopatin and E. Landulfo and P. Artaxo and E. Landulfo and J.L. Guerrero-Rascado and F.J. Olmo and L. Alados-Arboledas},
year = {2018},
date = {2018-11-19},
booktitle = {The X Workshop Lidar Measurements in Latin America (WLMLA)},
address = {Medellín, Colombia},
organization = {Universidad Nacional de Colombia},
keywords = {aerosol, aerosol optical depth, brazil, GRASP},
pubstate = {published},
tppubtype = {conference}
}
|
| 24. | M. Herreras; R. Román; A. Cazorla; C. Toledano; H. Lyamani; B. Torres; V.E. Cachorro; F.J. Olmo; L. Alados-Arboledas; A.M. de Frutos INTEGRATED AEROSOL EXTINCTION PROFILES FROM CEILOMETER AND SUNPHOTOMETER COMBINATION AGAINST SUNPHOTOMETER MEASUREMENTS AT VARIOUS HEIGHTS Conference GRSS and IEEE Valencia, Spain, 2018, (IGARSS 2018, International Geoscience and Remote Sensing Symposium). @conference{Herreras2018b,
title = {INTEGRATED AEROSOL EXTINCTION PROFILES FROM CEILOMETER AND SUNPHOTOMETER COMBINATION AGAINST SUNPHOTOMETER MEASUREMENTS AT VARIOUS HEIGHTS},
author = {M. Herreras and R. Román and A. Cazorla and C. Toledano and H. Lyamani and B. Torres and V.E. Cachorro and F.J. Olmo and L. Alados-Arboledas and A.M. de Frutos},
year = {2018},
date = {2018-07-22},
address = {Valencia, Spain},
organization = {GRSS and IEEE},
note = {IGARSS 2018, International Geoscience and Remote Sensing Symposium},
keywords = {ceilometer, GRASP},
pubstate = {published},
tppubtype = {conference}
}
|
| 25. | J.A. Benavent-Oltra; R. Román; D. Pérez-Ramírez; F.J.S. Lopes; G.A. Moreira; A.E. Bedoya-Velasquez; P. Ortiz-Amezcua; J.A. Casquero-Vera; H. Lyamani; J.J. da Silva; A. Lopatin; E. Landulfo; P. Artaxo; E. Landulfo; J.L. Guerrero-Rascado; F.J. Olmo; L. Alados-Arboledas Statistical analysis of aerosol properties retrieved by GRASP over São Paulo (Brazil) Conference European Lidar Conference 2018, National Observatory of Athens Thessaloniki, Greece, 2018. @conference{Benavent-Oltra2018e,
title = {Statistical analysis of aerosol properties retrieved by GRASP over São Paulo (Brazil)},
author = {J.A. Benavent-Oltra and R. Román and D. Pérez-Ramírez and F.J.S. Lopes and G.A. Moreira and A.E. Bedoya-Velasquez and P. Ortiz-Amezcua and J.A. Casquero-Vera and H. Lyamani and J.J. da Silva and A. Lopatin and E. Landulfo and P. Artaxo and E. Landulfo and J.L. Guerrero-Rascado and F.J. Olmo and L. Alados-Arboledas},
year = {2018},
date = {2018-07-03},
booktitle = {European Lidar Conference 2018},
address = {Thessaloniki, Greece},
organization = {National Observatory of Athens},
keywords = {aerosol, aerosol optical depth, brazil, GRASP},
pubstate = {published},
tppubtype = {conference}
}
|
| 26. | M. Herreras; R. Román; A. Cazorla; C. Toledano; H. Lyamani; B. Torres; V.E. Cachorro; F.J. Olmo; L. Alados-Arboledas; A.M. de Frutos INTEGRATED AEROSOL EXTINCTION PROFILES FROM CEILOMETER AND SUNPHOTOMETER COMBINATION AGAINST SUNPHOTOMETER MEASUREMENTS AT VARIOUS HEIGHTS Conference IZAÑA ATMOSPHERIC RESEARCH CENTRE – AEMET LA LAGUNA Tenerife, Spain, 2018, (9th Internat?onal Workshop on Sand/Duststorms and Assoc?ated Dustfall). @conference{Herreras2018,
title = {INTEGRATED AEROSOL EXTINCTION PROFILES FROM CEILOMETER AND SUNPHOTOMETER COMBINATION AGAINST SUNPHOTOMETER MEASUREMENTS AT VARIOUS HEIGHTS},
author = {M. Herreras and R. Román and A. Cazorla and C. Toledano and H. Lyamani and B. Torres and V.E. Cachorro and F.J. Olmo and L. Alados-Arboledas and A.M. de Frutos},
year = {2018},
date = {2018-05-22},
address = {Tenerife, Spain},
organization = {IZAÑA ATMOSPHERIC RESEARCH CENTRE – AEMET LA LAGUNA},
note = {9th Internat?onal Workshop on Sand/Duststorms and Assoc?ated Dustfall},
keywords = {ceilometer, GRASP},
pubstate = {published},
tppubtype = {conference}
}
|
| 27. | J.A. Benavent-Oltra; R. Román; J.A. Casquero-Vera; D. Pérez-Ramírez; H. Lyamani; P. Ortiz-Amezcua; A.E. Bedoya-Velasquez; J.L. Guerrero-Rascado; O. Dubovik; F.J. Olmo; L. Alados-Arboledas Aerosol vertical properties retrieved by GRASP code during SLOPE I and II campaigns Conference The 9th International Workshop on Sand/Duststorms and Associated Dustfall, World Meteorological Organization Tenerife, Spain, 2018. @conference{Benavent-Oltra2018c,
title = {Aerosol vertical properties retrieved by GRASP code during SLOPE I and II campaigns},
author = {J.A. Benavent-Oltra and R. Román and J.A. Casquero-Vera and D. Pérez-Ramírez and H. Lyamani and P. Ortiz-Amezcua and A.E. Bedoya-Velasquez and J.L. Guerrero-Rascado and O. Dubovik and F.J. Olmo and L. Alados-Arboledas},
year = {2018},
date = {2018-05-22},
booktitle = {The 9th International Workshop on Sand/Duststorms and Associated Dustfall},
address = {Tenerife, Spain},
organization = {World Meteorological Organization},
keywords = {aerosol optical depth, GRASP},
pubstate = {published},
tppubtype = {conference}
}
|
| 28. | R. Román; J.A. Benavent-Oltra; J.A. Casquero-Vera; A. Lopatin; A. Cazorlaa; H. Lyamani; C. Denjean; D. Fuertes; D. Pérez-Ramírez; B. Torres; C. Toledano; O. Dubovik; V.E. Cachorro; A.M. de Frutos; F.J. Olmo; L. Alados-Arboledas Retrieval of aerosol profiles combining sunphotometer and ceilometer measurements in GRASP code Journal Article In: Atmospheric Research, vol. 204, pp. 161-167, 2018. @article{ROMAN2018AtmosRes,
title = {Retrieval of aerosol profiles combining sunphotometer and ceilometer measurements in GRASP code},
author = {R. Román; J.A. Benavent-Oltra; J.A. Casquero-Vera; A. Lopatin; A. Cazorlaa; H. Lyamani; C. Denjean; D. Fuertes; D. Pérez-Ramírez; B. Torres; C. Toledano; O. Dubovik; V.E. Cachorro; A.M. de Frutos; F.J. Olmo; L. Alados-Arboledas},
url = {https://www.sciencedirect.com/science/article/pii/S0169809517312577},
doi = {10.1016/j.atmosres.2018.01.021},
year = {2018},
date = {2018-05-15},
journal = {Atmospheric Research},
volume = {204},
pages = {161-167},
keywords = {aerosol concentration, ceilometer, GRASP, LIDAR},
pubstate = {published},
tppubtype = {article}
}
|
| 29. | F.J.S. Lopes; R. Román; J.L. Guerrero-Rascado; J.A. Benavent-Oltra; G.A. Moreira; J.J. da Silva; E. Landulfo; L. Alados-Arboledas Study of aerosol optical and microphysical properties during biomass burning and local urban pollution events at São Paulo-Brazil: a GRASP exercise Conference 4th ACTRIS-2 General Meeting, ACTRIS Nafplio, Greece, 2018. @conference{Lopes2018,
title = {Study of aerosol optical and microphysical properties during biomass burning and local urban pollution events at São Paulo-Brazil: a GRASP exercise},
author = {F.J.S. Lopes and R. Román and J.L. Guerrero-Rascado and J.A. Benavent-Oltra and G.A. Moreira and J.J. da Silva and E. Landulfo and L. Alados-Arboledas},
year = {2018},
date = {2018-04-17},
booktitle = {4th ACTRIS-2 General Meeting},
address = {Nafplio, Greece},
organization = {ACTRIS},
keywords = {GRASP, LIDAR},
pubstate = {published},
tppubtype = {conference}
}
|
| 30. | Herreras, M. ;Román, R. ;Cazorla, A. ;Toledano, C. ;Lyamani, H. ;Torres, B. ;Cachorro, V.E. ;Olmo, F.J. ;Alados-Arboledas, L. ;de Frutos, A. Integrated aerosol extinction profiles from ceilometer and sunphotometer combination against sunphotometer measurements at various heights Proceedings Article In: IGARSS 2018-2018 IEEE International Geoscience and Remote Sensing Symposium. , pp. 7564 - 7567, IEEE Geoscience and Remote Sensing Society, 2018, ISBN: 978-1-5386-7150-4. @inproceedings{HerrerasIGARSS2018,
title = {Integrated aerosol extinction profiles from ceilometer and sunphotometer combination against sunphotometer measurements at various heights},
author = {Herreras, M. ;Román, R. ;Cazorla, A. ;Toledano, C. ;Lyamani, H. ;Torres, B. ;Cachorro, V.E. ;Olmo, F.J. ;Alados-Arboledas, L. ;de Frutos, A.},
isbn = {978-1-5386-7150-4},
year = {2018},
date = {2018-01-01},
booktitle = {IGARSS 2018-2018 IEEE International Geoscience and Remote Sensing Symposium. },
volume = {18},
pages = {7564 - 7567},
publisher = {IEEE Geoscience and Remote Sensing Society},
keywords = {aerosol optical depth, ceilometer, GRASP},
pubstate = {published},
tppubtype = {inproceedings}
}
|
| 31. | Granados-Muñoz, M.J. ;Sicard, M. ;Román, R. ;Benavent-Oltra, J.A. ;Barragán, R. ;Brogniez, G. ;Denjean, C. ;Alados-Arboledas, L. ;Muñoz-Porcar, C. ;Rodriguez-Gómez, A. A 1-D radiative transfer study of mineral dust during CHARMEX/ADRIMED 2013 campaign Proceedings Article In: IGARSS 2018-2018 IEEE International Geoscience and Remote Sensing Symposium. , pp. 6033 - 6036, IEEE Geoscience and Remote Sensing Society, 2018, ISBN: 978-1-5386-7150-4. @inproceedings{GranadosIGARRS2018,
title = {A 1-D radiative transfer study of mineral dust during CHARMEX/ADRIMED 2013 campaign},
author = {Granados-Muñoz, M.J. ;Sicard, M. ;Román, R. ;Benavent-Oltra, J.A. ;Barragán, R. ;Brogniez, G. ;Denjean, C. ;Alados-Arboledas, L. ;Muñoz-Porcar, C. ;Rodriguez-Gómez, A.},
isbn = {978-1-5386-7150-4},
year = {2018},
date = {2018-01-01},
booktitle = {IGARSS 2018-2018 IEEE International Geoscience and Remote Sensing Symposium. },
volume = {18},
pages = {6033 - 6036},
publisher = {IEEE Geoscience and Remote Sensing Society},
keywords = {GRASP, LIDAR, Radiative forcing, Water vapor},
pubstate = {published},
tppubtype = {inproceedings}
}
|
| 32. | Román, R. ;Benavent-Oltra, J.A. ;Casquero-Vera, J.A. ;Lopatin, A. ;Cazorla, A. ;Lyamani, H. ;Denjean, C. ;Fuertes, D. ;Pérez-Ramírez, D. ;Torres, B. ;Dubovik, O. ;Cahorro, V.E. ;de Frutos, A.M. ;Olmo, F.J. ;Alados-Arboledas, L. Aerosol profiles from GRASP code using ceilometer and sunphotometer measurements Conference 9th International Workshop on Sand/Duststorms and Associated Dustfall (DUST9), World Meteorological Organization (WMO) Sand and Dust Stomr Warning Advisory and Assesment System (SDS-WAS) 2018, (Participativo - Ponencia oral (comunicación oral)). @conference{RomanDUST2018,
title = {Aerosol profiles from GRASP code using ceilometer and sunphotometer measurements},
author = {Román, R. ;Benavent-Oltra, J.A. ;Casquero-Vera, J.A. ;Lopatin, A. ;Cazorla, A. ;Lyamani, H. ;Denjean, C. ;Fuertes, D. ;Pérez-Ramírez, D. ;Torres, B. ;Dubovik, O. ;Cahorro, V.E. ;de Frutos, A.M. ;Olmo, F.J. ;Alados-Arboledas, L.},
year = {2018},
date = {2018-01-01},
booktitle = {9th International Workshop on Sand/Duststorms and Associated Dustfall (DUST9)},
organization = {World Meteorological Organization (WMO) Sand and Dust Stomr Warning Advisory and Assesment System (SDS-WAS)},
note = {Participativo - Ponencia oral (comunicación oral)},
keywords = {aerosol optical depth, ceilometer, GRASP},
pubstate = {published},
tppubtype = {conference}
}
|
2017
|
| 33. | F. Lopes, R. Román, J.L Guerrero-Rascado, J.A. Benavent-Oltra, G.A. Moreira, J.J. da Silva, E. Landulfo; L.Alados-Arboledas Study of aerosol optical and microphysical properties during biomass burning and local urban pollution events at São Paulo-Brazil: a GRASP exercise Conference European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases (ACTRIS) Delft, Holanda, 2017, (3rd ACTRIS-2 WP2 Workshop). @conference{LOPES2017ACTRISdelf,
title = {Study of aerosol optical and microphysical properties during biomass burning and local urban pollution events at São Paulo-Brazil: a GRASP exercise},
author = {F. Lopes, R. Román, J.L Guerrero-Rascado, J.A. Benavent-Oltra, G.A. Moreira, J.J. da Silva, E. Landulfo and L.Alados-Arboledas},
year = {2017},
date = {2017-11-18},
address = {Delft, Holanda},
organization = {European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases (ACTRIS)},
note = {3rd ACTRIS-2 WP2 Workshop},
keywords = {GRASP, LIDAR},
pubstate = {published},
tppubtype = {conference}
}
|
| 34. | R. Román, J.A. Benavent-Oltra, J.A. Casquero-Vera, A. Cazorla, H. Lyamani, C. Toledano, D. Fuertes, B. Torres, A. Lopatin, O. Dubovik, F.J. Olmo; L. Alados-Arboledas. Aerosol concentration profiles obtained by GRASP code combining ceilometer and sunphotometer measurements Conference Institute for Environmental Assessment and Water Studies (IDÆA), Consejo Superior de Investigaciones Científicas (CSIC) Barcelona, España, 2017, (5th Iberian Meeting on Aerosol Science and Technology (RICTA'17)). @conference{ROMAN2017_RICTAceilo,
title = {Aerosol concentration profiles obtained by GRASP code combining ceilometer and sunphotometer measurements},
author = {R. Román, J.A. Benavent-Oltra, J.A. Casquero-Vera, A. Cazorla, H. Lyamani, C. Toledano, D. Fuertes, B. Torres, A. Lopatin, O. Dubovik, F.J. Olmo and L. Alados-Arboledas.},
year = {2017},
date = {2017-07-08},
address = {Barcelona, España},
organization = {Institute for Environmental Assessment and Water Studies (IDÆA), Consejo Superior de Investigaciones Científicas (CSIC)},
note = {5th Iberian Meeting on Aerosol Science and Technology (RICTA'17)},
keywords = {aerosol concentration, ceilometer, GRASP},
pubstate = {published},
tppubtype = {conference}
}
|
| 35. | R. Román, J.A. Benavent-Oltra, P. Ortiz-Amezcua, D. Pérez-Ramírez, A. Cazorla, A. Barreto, J.L. Guerrero-Rascado, C. Toledano, A. Lopatin, B. Torres, O. Dubovik, P. Goloub, F.J. Olmo; L. Alados-Arboledas Retrieval of aerosol properties profiles at night combining lunar photometer, lidar and sky camera measurements. Conference Grupo de Óptica Atmosférica de la Unviersidad de Valladolid (GOA/UVA) y Agencia Estatal de Meteorología (AEMet) Izaña (Tenerife), España, 2017, (Lunar Photometry Workshop 2017). @conference{ROMAN2017IZOlidarGRASP,
title = {Retrieval of aerosol properties profiles at night combining lunar photometer, lidar and sky camera measurements.},
author = {R. Román, J.A. Benavent-Oltra, P. Ortiz-Amezcua, D. Pérez-Ramírez, A. Cazorla, A. Barreto, J.L. Guerrero-Rascado, C. Toledano, A. Lopatin, B. Torres, O. Dubovik, P. Goloub, F.J. Olmo and L. Alados-Arboledas},
year = {2017},
date = {2017-06-08},
address = {Izaña (Tenerife), España},
organization = {Grupo de Óptica Atmosférica de la Unviersidad de Valladolid (GOA/UVA) y Agencia Estatal de Meteorología (AEMet)},
note = {Lunar Photometry Workshop 2017},
keywords = {GRASP, High dynamic range, LIDAR, lunar photometry, moon, sky camera},
pubstate = {published},
tppubtype = {conference}
}
|
| 36. | J.A. Benavent-Oltra, R. Román, D. Pérez-Ramírez, P. Ortiz-Amezcua, A. Cazorla, A. Barreto, J.L. Guerrero-Rascado, C. Toledano, A. Lopatin, B. Torres, O. Dubovik, P. Goloub, F.J. Olmo; L. Alados-Arboledas. Preliminary results of aerosol profile retrievals at night combining multi-wavelength lidar, lunar-photometry and sky camera images Conference International Coordination-group for Laser Atmospheric Studies (ICLAS) Bucharest, Rumanía, 2017, (28th International Laser Radar Conference (ILRC28)). @conference{Benavent2017_ILRC,
title = {Preliminary results of aerosol profile retrievals at night combining multi-wavelength lidar, lunar-photometry and sky camera images},
author = {J.A. Benavent-Oltra, R. Román, D. Pérez-Ramírez, P. Ortiz-Amezcua, A. Cazorla, A. Barreto, J.L. Guerrero-Rascado, C. Toledano, A. Lopatin, B. Torres, O. Dubovik, P. Goloub, F.J. Olmo and L. Alados-Arboledas.},
year = {2017},
date = {2017-05-28},
address = {Bucharest, Rumanía},
organization = {International Coordination-group for Laser Atmospheric Studies (ICLAS)},
note = {28th International Laser Radar Conference (ILRC28)},
keywords = {GRASP, High dynamic range, LIDAR, lunar photometry, moon, sky camera},
pubstate = {published},
tppubtype = {conference}
}
|
| 37. | R. Román, J.A. Benavent-Oltra, J.A. Casquero-Vera, A. Cazorla, H. Lyamani, C. Toledano, D. Fuertes, B. Torres, O. Dubovik, F.J. Olmo; L. Alados-Arboledas. Aerosol concentration profiles obtained by GRASP code combining ceilometer and sunphotometer measurements Conference European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases (ACTRIS) Granada, España, 2017, (3rd ACTRIS-2 General Meeting). @conference{ROMAN2017actrisGRANADA,
title = {Aerosol concentration profiles obtained by GRASP code combining ceilometer and sunphotometer measurements},
author = {R. Román, J.A. Benavent-Oltra, J.A. Casquero-Vera, A. Cazorla, H. Lyamani, C. Toledano, D. Fuertes, B. Torres, O. Dubovik, F.J. Olmo and L. Alados-Arboledas.},
year = {2017},
date = {2017-02-03},
address = {Granada, España},
organization = {European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases (ACTRIS)},
note = {3rd ACTRIS-2 General Meeting},
keywords = {aerosol concentration, ceilometer, GRASP},
pubstate = {published},
tppubtype = {conference}
}
|
| 38. | J.A. Benavent-Oltra, R. Román, D. Pérez, P. Ortiz-Amezcua, A. Cazorla, A. Barreto, J.L. Guerrero-Rascado, C. Toledano, A. Lopatin, B. Torres, O. Dubovik, P. Goloub, F.J. Olmo; L. Alados-Arboledas. Preliminary results of aerosol profile retrievals at night combining multi-wavelength lidar, lunar photometry and sky camera images Conference European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases (ACTRIS) Granada, España, 2017, (3rd ACTRIS-2 General Meeting). @conference{BENAVENT2017ACTRISGRANADA,
title = {Preliminary results of aerosol profile retrievals at night combining multi-wavelength lidar, lunar photometry and sky camera images},
author = {J.A. Benavent-Oltra, R. Román, D. Pérez, P. Ortiz-Amezcua, A. Cazorla, A. Barreto, J.L. Guerrero-Rascado, C. Toledano, A. Lopatin, B. Torres, O. Dubovik, P. Goloub, F.J. Olmo and L. Alados-Arboledas.},
year = {2017},
date = {2017-02-03},
address = {Granada, España},
organization = {European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases (ACTRIS)},
note = {3rd ACTRIS-2 General Meeting},
keywords = {GRASP, High dynamic range, LIDAR, lunar photometry, moon, sky camera},
pubstate = {published},
tppubtype = {conference}
}
|
| 39. | B. Torres; O. Dubovik; D. Fuertes; G. Schuster; V. E. Cachorro; T. Lapyonok; P. Goloub; L. Blarel; A. Barreto; M. Mallet; C. Toledano; D. Tanré Advanced characterisation of aerosol size properties from measurements of spectral optical depth using the GRASP algorithm Journal Article In: Atmospheric Measurement Techniques, vol. 10, no. 10, pp. 3743–3781, 2017. @article{Torres2017,
title = {Advanced characterisation of aerosol size properties from measurements of spectral optical depth using the GRASP algorithm},
author = { B. Torres and O. Dubovik and D. Fuertes and G. Schuster and V. E. Cachorro and T. Lapyonok and P. Goloub and L. Blarel and A. Barreto and M. Mallet and C. Toledano and D. Tanré},
url = {https://www.atmos-meas-tech.net/10/3743/2017/},
doi = {10.5194/amt-10-3743-2017},
year = {2017},
date = {2017-01-01},
journal = {Atmospheric Measurement Techniques},
volume = {10},
number = {10},
pages = {3743--3781},
keywords = {aerosol optical depth, GRASP},
pubstate = {published},
tppubtype = {article}
}
|
| 40. | R. Román; B. Torres; D. Fuertes; V.E. Cachorro; O. Dubovik; C. Toledano; A. Cazorla; A. Barreto; J.L. Bosch; T. Lapyonok; R. González; P. Goloub; M.R. Perrone; F.J. Olmo; A. de Frutos; L. Alados-Arboledas Remote sensing of lunar aureole with a sky camera: Adding information in the nocturnal retrieval of aerosol properties with GRASP code Journal Article In: Remote Sensing of Environment, vol. 196, pp. 238 - 252, 2017, ISSN: 0034-4257. @article{ROMAN2017238,
title = {Remote sensing of lunar aureole with a sky camera: Adding information in the nocturnal retrieval of aerosol properties with GRASP code},
author = {R. Román and B. Torres and D. Fuertes and V.E. Cachorro and O. Dubovik and C. Toledano and A. Cazorla and A. Barreto and J.L. Bosch and T. Lapyonok and R. González and P. Goloub and M.R. Perrone and F.J. Olmo and A. de Frutos and L. Alados-Arboledas},
url = {http://www.sciencedirect.com/science/article/pii/S0034425717302109},
doi = {10.1016/j.rse.2017.05.013},
issn = {0034-4257},
year = {2017},
date = {2017-01-01},
journal = {Remote Sensing of Environment},
volume = {196},
pages = {238 - 252},
keywords = {GRASP, High dynamic range, lunar photometry, moon},
pubstate = {published},
tppubtype = {article}
}
|
2016
|
| 41. | R. Román, B. Torres, D. Fuertes, V.E. Cachorro, O. Dubovik, C. Toledano, A. Cazorla, A. Barreto, J.L. Bosch, T. Lapyonok, R. González, P. Goloub, M.R. Perrone, F.J. Olmo, A. de Frutos; L. Alados-Arboledas. Using the lunar aureole derived from All-Sky cameras for the retrievals of aerosol microphisycal properties Conference European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases (ACTRIS) Barcelona, España, 2016, (2nd ACTRIS-2 WP2 Workshop). @conference{ROMAN2016actrisBCN,
title = {Using the lunar aureole derived from All-Sky cameras for the retrievals of aerosol microphisycal properties},
author = {R. Román, B. Torres, D. Fuertes, V.E. Cachorro, O. Dubovik, C. Toledano, A. Cazorla, A. Barreto, J.L. Bosch, T. Lapyonok, R. González, P. Goloub, M.R. Perrone, F.J. Olmo, A. de Frutos and L. Alados-Arboledas.},
year = {2016},
date = {2016-11-03},
address = {Barcelona, España},
organization = {European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases (ACTRIS)},
note = {2nd ACTRIS-2 WP2 Workshop},
keywords = {GRASP, High dynamic range, LIDAR, lunar photometry, moon, sky camera},
pubstate = {published},
tppubtype = {conference}
}
|
| 42. | R. Román, B. Torres, D. Fuertes, C. Toledano, O. Dubovik, V.E. Cachorro, T. Lapyonok, R. González, A. Barreto, C. Velasco-Merino, A. Cazorla, J.L. Bosch, P. Goloub, L. Blarel, F.J. Olmo, A. de Frutos, L. Alados-Arboledas The use of a sky camera to observe the relative radiances of the lunar aureole and the effect of aerosol over them Conference Universidade de Aveiro Aveiro, Portugal, 2016, (IV Iberian Meeting on Aerosol Science and Technology (RICTA2016)). @conference{ROMAN2016ricta,
title = {The use of a sky camera to observe the relative radiances of the lunar aureole and the effect of aerosol over them},
author = {R. Román, B. Torres, D. Fuertes, C. Toledano, O. Dubovik, V.E. Cachorro, T. Lapyonok, R. González, A. Barreto, C. Velasco-Merino, A. Cazorla, J.L. Bosch, P. Goloub, L. Blarel, F.J. Olmo, A. de Frutos, L. Alados-Arboledas},
year = {2016},
date = {2016-06-28},
address = {Aveiro, Portugal},
organization = {Universidade de Aveiro},
note = {IV Iberian Meeting on Aerosol Science and Technology (RICTA2016)},
keywords = {GRASP, High dynamic range, LIDAR, lunar photometry, moon, sky camera},
pubstate = {published},
tppubtype = {conference}
}
|
