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1. | S. Herrero-Anta; D. Mateos; R. Román; C. Ritter; D. González-Fernández; C. Herrero del Barrio; R. González; C. Toledano; V.E. Cachorro; A. Calle; Á.M. de Frutos. Aerosol properties retrieved under high turbidity conditions and the corresponding aerosol radiative effect in the European Arctic in the period 2017-2022 by sun photometry Conference Svalbard Science Conference 2023 Oslo, Norway, 2023. BibTeX | Tags: #Arctic, Aerosol Properties, Aerosol radiative effects @conference{Herrero-Anta2023d, |
2. | 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. Abstract | Links | BibTeX | Tags: aerosol inversion, AOD, GRASP, zenith sky radiance @article{Herrero-Anta2023, 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 |
3. | R.D. García; O.E. García; E. Cuevas-Agulló; Á. Barreto; V.E. Cachorro-Revilla; C. Marrero; F. Almansa; R. Ramos; Ó. Álvarez; M. Pó. Spectral Aerosol Radiative Forcing and Efficiency of the La Palma Volcanic Plume over the Izaña Observatory Conference ELC 2023 4th edition of the European Lidar Conference. Cluj-Napoca, Romania, 2023. BibTeX | Tags: Aerosol Properties, Radiative forcing @conference{García2023, |
4. | 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. BibTeX | Tags: aerosol inversion, AOD, GRASP, sky radiance @conference{Herrero-Anta2023c, |
5. | C. Herrero del Barrio; D. Mateos; R. Román; R. González; S. Herrero-Anta; D. González-Fernández; A. Calle; C. Toledano; V.E. Cachorro; A.M. de Frutos Analysis of daytime and night-time aerosol optical depth from sun and lunar photometry at North Central Iberian Peninsula Conference European Aerosol Conference 2023, Málaga, Spain, 2023. BibTeX | Tags: aerosol climatology, AOD, caelis, lunar photometry @conference{delBarrio2023, |
6. | D. Mateos; C. Toledano; R. Román; R. González; S. Herrero-Anta; D. González-Fernández; C. Herrero del Barrio; A. Calle; V.E. Cachorro; A. M de Frutos. Columnar aerosol properties by sun and lunar photometry in the Arctic and in the Antarctica Conference European Aerosol Conference 2023, Málaga, Spain, 2023. BibTeX | Tags: #Arctic, aerosol events, Aerosol Properties, Antarctica, lunar photometry @conference{Mateos2023, |
7. | Añel, J. A.; I. Cnossen; J. C. Antuña-Marrero; G. Beig; M. K. Brown; E. Doornbos; R. García; L. Gray; D. R. Marsh; S. Osprey; M. G. Mlynczak; S. M. Mutschler; P. Pišoft; V. Sofieva; P. Šácha; L. de la Torre; S.R. Zhang Documenting the Impacts of Climate Change on the Middle and Upper Atmosphere and Atmospheric Drag of Space Objects Journal Article In: SPARC Newsletter, no. 61, pp. 22, 2023, ISSN: 1245-4680. @article{Añel2023, |
8. | V. Salgueiro; J. L. Guerrero-Rascado; M. J. Costa; R. Román; A. Cazorla; A. Serrano; F. Molero; M. Sicard; C. Córdoba-Jabonero; D. Bortoli; A. Comerón; F. T. Couto; M. Á. López-Cayuela; D. Pérez-Ramírez; M. Potes; J. A. Muñiz-Rosado; M. A. Obregón; R. Barragán; D. C. F. S. Oliveira; J. Abril-Gago; R. González; C. Gíl-Díaz; I. Foyo-Moreno; C. Muñoz-Porcar; M. J. Granados-Muñoz; A. Rodríguez-Gómez; M. Herreras-Giralda; J. A. Bravo-Aranda; C. V. Carvajal-Pérez; A. Barreto; L. Alados-Arboledas In: Remote Sensing of Environment, vol. 295, pp. 113684, 2023, ISSN: 0034-4257. Abstract | Links | BibTeX | Tags: ceilometer, GRASP algorithm, LIDAR, Satellite remote sensing, Sulphur dioxide, sun-photometer, Volcanic sulphates @article{Salgueiro2023, Three volcanic plumes were detected during the Tajogaite volcano eruptive activity (Canary Islands, Spain, September–December 2021) over the Iberian Peninsula. The spatiotemporal evolution of these events is characterised by combining passive satellite remote sensing and ground-based lidar and sun-photometer systems. The inversion algorithm GRASP is used with a suite of ground-based remote sensing instruments such as lidar/ceilometer and sun-photometer from eight sites at different locations throughout the Iberian Peninsula. Satellite observations showed that the volcanic ash plumes remained nearby the Canary Islands covering a mean area of 120 ± 202 km2 during the whole period of eruptive activity and that sulphur dioxide plumes reached the Iberian Peninsula. Remote sensing observations showed that the three events were mainly composed of sulphates, which were transported from the volcano into the free troposphere. The high backscatter-related Ångström exponents for wavelengths 532–1064 nm (1.17 ± 0.20 to 1.40 ± 0.24) and low particle depolarization ratios (0.08 ± 0.02 to 0.09 ± 0.02), measured by the multi-wavelength Raman lidar, hinted at the presence of spherical small particles. The layer aerosol optical depth at 532 nm (AODL532) obtained from lidar measurements contributed between 49% and 82% to the AERONET total column AOD at 532 nm in event II (11–13 October). According to the GRASP retrievals, the layer aerosol optical depth at 440 nm (AODL440) was higher in all sites during event II with values between 0.097 (Badajoz) and 0.233 (Guadiana-UGR) and lower in event III (19–21 October) varying between 0.003 (Granada) and 0.026 (Évora). Compared with the GRASP retrievals of total column AOD at 440 nm, the AODL440 had contributions between 21% and 52% during event II. In the event I (25–28 September), the mean volume concentrations (VC) varied between 5 ± 4 ?m3cm?3 (El-Arenosillo/Huelva) and 17 ± 10 ?m3cm?3 (Guadiana-UGR), while in event II this variation was from 11 ± 7 ?m3cm?3 (Badajoz) to 27 ± 10 ?m3cm?3 (Guadiana-UGR). Due to the impact of volcanic events on atmospheric and economic fields, such as radiative forcing and airspace security, a proper characterization is required. This work undertakes it using advanced instrumentation and methods. |
9. | 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. BibTeX | Tags: aerosol inversion, AOD, GRASP, sky radiance @conference{Herrero-Anta2023b, |
10. | V. E. Cachorro Revisiting basic sphere algorithms for Lorenz-Mie scattering under non-absorbing and absorbing media Conference ELX 2020, The 20th International Conference on Electromagnetic and Light Scattering Almuñecar, Spain, 2023. BibTeX | Tags: Light scattering, Radiative transfer @conference{Cachorro2023, |
11. | Javier Montero-Martín; Manuel Antón; José Manuel Vaquero; Roberto Román; Javier Vaquero-Martinez; Alejandro J. P. Aparicio; Arturo Sanchez-Lorenzo Reconstruction of daily global solar radiation under all-sky and cloud-free conditions in Badajoz (Spain) since 1929 Journal Article In: International Journal of Climatology, vol. n/a, no. n/a, 2023. Abstract | Links | BibTeX | Tags: atmospheric aerosols, cloud cover, dimming/brightening, early instrumental data, surface solar radiation @article{Montero-Martín2023, Abstract This work analyses the long-term temporal variability of the annual and seasonal series of reconstructed global solar radiation for both all-sky and cloud-free conditions in Badajoz (Spain) over the 1929–2015 period. Specifically, daily values of global horizontal irradiation (GHI) for all-sky cases are derived from a semiempirical method based on the relationship between the cloud modification factor and sunshine duration records. Additionally, cloud-free situations are selected using cloud cover (CC) information recorded by surface observations. Regarding GHI linear trends for all-sky conditions, three periods are clearly identified: during the 1929–1950 period, there is a positive and statistically significant trend of +4.18?W·m?2·decade?1. It is followed by a significant dimming with a trend of ?3.72?W·m?2·decade?1 between 1951 and 1984. GHI levels increase again from 1985 to 2015 with a statistically significant trend of +2.04?W·m?2·decade?1. The seasonal trends are found to be statistically significant only in summer for all the three subperiods. With the goal to find out the possible causes of the reconstructed GHI trends, the temporal variability of the CC was also analysed. It was observed that CC has a statistically significant negative trend between 1985 and 2015 which may partially explain the GHI increase shown for this period. In contrast, not statistically significant trends were found in the annual and seasonal CC series before 1985. The long-term evolution of the GHI under cloud-free conditions exhibits the same pattern as all-sky conditions: an increase during 1929–1950, followed by a decrease in 1951–1984 and then a new increase from 1985 to 2015. Therefore, the positive (negative) linear trends in GHI reported in this study could be partially related to a decrease (increase) in the aerosol load during the analysed three subperiods. |
12. | Barja, B.; Rosas, J.; Cachorro, V. E.; Toledano, C.; Antuña-Marrero, J. C.; Estevan, R.; de Frutos, A. Surface shortwave cloud radiative effect of cumulus and stratocumulus-cumulus cloud types in the Caribbean area (Camagüey Cuba, 2010-2016) Journal Article In: 36, vol. (1), pp. 41–56, 2023. Abstract | Links | BibTeX | Tags: cloud effect efficiency (CEE), cloud effects on solar radiation (CRE) at surface, cloud optical depth (COD), cumulus and stratocumulus @article{Barja2023, The effects of cumulus (Cu) clouds and the combination of stratocumulus-cumulus (Sc-Cu) clouds on solar radiation at the Earth’s surface were evaluated at Camagüey, Cuba, during a 6-yr period (from June 2010 to May 2016). Two methods to calculate the cloud radiative effect (CRE) were employed. The first method (CREm) uses solar irradiances in cloudy conditions from actinometric observations, where cloud information was also reported by visual observation. In the second method (CRE0) surface solar irradiances were estimated for both cloudy and clear sky conditions using a 1-D radiative transfer model, and cloud optical depth (COD) retrieved from an AERONET sun-photometer as the main input. A temporal correspondence criterion between COD retrievals and actinometric observations was performed in order to classify the COD of each cloud type. After the application of this criterion, the COD belonging to the optically thin clouds was removed. Finally, 255 and 732 COD observations for Cu and Sc-Cu, respectively, were found. Results show a statistically significant difference at the 95% confidence level between CRE calculated for Sc-Cu and Cu, using both methods. Mean values of CREm and CRE0 for Cu (Sc-Cu) were ?442 (?390) and ?460 (?417) Wm–2, respectively. CRE0 shows a linear relation with ln(COD), with stronger correlation at a lower solar zenith angle. The shortwave cloud effect efficiency (CEE) for the two cloud types sharply decreases with the increase of the COD value up to 20. For larger COD, the CEE is less sensitive to the increase of COD. |
13. | Elena Bazo; María J. Granados-Muñoz; Roberto Román; Juan Antonio Bravo-Aranda; Alberto Cazorla; Antonio Valenzuela; Ramiro González; Francisco José Olmo; Lucas Alados-Arboledas In: Atmospheric Research, vol. 282, pp. 106517, 2023, ISSN: 0169-8095. Abstract | Links | BibTeX | Tags: aerosol radiative properties, ceilometer, GAME, GRASP, Longwave radiative effect, Sun-sky photometer @article{Bazo2023, 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. |
14. | Celia Herrero del Barrio; David Mateos; Roberto Román; Ramiro González; Sara Herrero-Anta; Daniel González-Fernández; Abel Calle; Carlos Toledano; Victoria Eugenia Cachorro; Ángel Máximo De Frutos Baraja Analysis of Daytime and Night-Time Aerosol Optical Depth from Solar and Lunar Photometry in Valladolid (Spain) Journal Article In: Remote Sensing, vol. 15, no. 22, 2023, ISSN: 2072-4292. Abstract | Links | BibTeX | Tags: aerosol climatology, aerosol optical depth, Angstrom Exponent, caelis, lunar photometry @article{rs15225362, Aerosol optical depth (AOD) at night-time has become a hot topic in recent years due to the development of new instruments recording accurate ground-based lunar irradiance measurements, and the development of calibration methods and extraterrestrial irradiance models adapted to lunar photometry. This study uses all daytime and night-time AOD data available at Valladolid (Spain) from October 2016 to March 2022 in order to analyze its behavior and the added contribution of night data. The annual, monthly and daily AOD evolution is studied comparing daytime and night-time values and checking the correlation between them. For this purpose, the daily averages are computed, showing an annual pattern, with low AOD values throughout the year (mean value of AOD at 440 nm: 0.122), where winter months have the lower and summer the higher values, as observed in previous studies. All these AOD values are modulated by frequent desert dust events over the Iberian Peninsula, with a strong influence on daily and monthly mean values in February and March, where the strongest desert outbreaks occurred. The added new data confirm these results and the good correlation between daytime and night-time data. Also, a complete daily evolution is shown, observing that AOD and Ångström exponent (AE) mean values vary by only ±0.02 in 24 h, with a maximum value at 06:00 UTC and minimum at 18:00 UTC for both parameters. |
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15. | R.D. García; O.E. García; E. Cuevas-Agulló; A. Barreto; V.E. Cachorro; C. Marrero; F. Almansa; R. Ramos; M. Pó Spectral Aerosol Radiative Forcing and Efficiency of the La Palma Volcanic Plume over the Izaña Observatory Journal Article In: Remote Sensing, vol. 15(1), no. 17, 2022, ISSN: 2072-4292. Abstract | Links | BibTeX | Tags: Aerosol Properties, aerosol radiative properties @article{García2022b, On 19 September 2021, a volcanic eruption began on the island of La Palma (Canary Islands, Spain). The eruption has allowed the assessment of an unprecedented multidisciplinary study on the effects of the volcanic plume. This work presents the estimation of the spectral direct radiative forcing (ΔF) and efficiency (ΔFEff) from solar radiation measurements at the Izaña Observatory (IZO) located on the island of Tenerife (∼140 km from the volcano). During the eruption, the IZO was affected by different types of aerosols: volcanic, Saharan mineral dust, and a mixture of volcanic and dust aerosols. Three case studies were identified using ground-based (lidar) data, satellite-based (Sentinel-5P Tropospheric Monitoring Instrument, TROPOMI) data, reanalysis data (Modern-Era Retrospective Analysis for Research and Applications, version 2, MERRA-2), and backward trajectories (Flexible Trajectories, FLEXTRA), and subsequently characterised in terms of optical and micro-physical properties using ground-based sun-photometry measurements. Despite the ΔF of the volcanic aerosols being greater than that of the dust events (associated with the larger aerosol load present), the ΔFEff was found to be lower. The spectral ΔFEff values at 440 nm ranged between −1.9 and −2.6 Wm−2nm−1AOD−1 for the mineral dust and mixed volcanic and dust particles, and between −1.6 and −3.3 Wm−2nm−1AOD−1 for the volcanic aerosols, considering solar zenith angles between 30∘ and 70∘, respectively. |
16. | D. Cappelletti; C. Petroselli; D. Mateos; M. Herreras; L. Ferrero; N. Losi; A. Gregori; C. Frangipani; G. La Porta; M. Lonardi; D. G. Chernov; A. Dekhtyareva Vertical profiles of black carbon and nanoparticles pollutants measured by a tethered balloon in Longyearbyen (Svalbard islands) Journal Article In: Atmospheric Environment, vol. 290, pp. 119373, 2022, ISSN: 1352-2310. Abstract | Links | BibTeX | Tags: Aerosol vertical profiles, Arctic pollution, Black carbon, Nanoparticles @article{CAPPELLETTI2022119373, Airborne meteorological and aerosol measurements have been performed in Longyearbyen (Svalbard islands) in the summer of 2018, coupling an instrumental aerosol payload with a meteorological radiosonde deployed on a tethered balloon. More than 70 vertical profiles of aerosol and meteorological properties have been recorded up to a maximum altitude of 1.2 km. As a main result, the present work provides a homogeneous gridded dataset of vertical profiles of equivalent black carbon (eBC) and nanoparticles (NP) concentrations and associated meteorological data (temperature, T, relative humidity, RH, pressure, P) to be employed for future modelling studies of Arctic pollution. Mean values (±SD) of eBC and NP below 500 m were 110 ± 10 ng m?3 and 1400 ± 400 particles cm?3, respectively. Mean values above 500 m were 150 ± 30 ng m?3 and 1000 ± 350 particles cm?3, respectively. Group medians of maximum eBC and NP concentrations in vertical profiles with temperature inversions were significantly higher than for those without inversion. The dataset has been complemented by continuous ground measurements of eBC with an average value of 208 ± 130 ng m?3 (median value 110 ± 70 ng m?3) for the entire campaign; the ground-based background (absence of local emission) eBC value was below 100 ng m?3 while maximum values were in the 1000–2000 ng m?3 range. Median eBC concentration measured at ground for 2 h before the tethered balloon launch was higher when temperature inversion was observed. The ground-based measurements, coupled with aerosol optical depth measurements, allowed for a preliminary discussion of two case studies related to high pollutants concentration events. |
17. | Marta María Jiménez-Martín; Mar Sorribas; Jose Antonio Adame; Carlos Toledano; Margarita Yela Comparison of the Integrated Water Vapor from Diverse Retrievals at El Arenosillo (Southwest, Spain) Conference 11th International Aerosol Conference (IAC2022) Athens, Greece, 2022. BibTeX | Tags: Integrated water vapor @conference{Jiménez-Martín2022, |
18. | 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. BibTeX | Tags: AERONET, Aerosol radiative effects, GRASP @conference{Bazo2022, |
19. | M. J. Granados-Muñoz; J. L. Guerrero-Rascado; J. A. Bravo-Aranda; P. Cariñanos; J. Abril-Gago; D. Bermejo-Pantaleon; Alberto Cazorla; Roberto Roman; Ramiro González; Lucas Alados-Arboledas Analysis of optical, microphysical and radiative properties of extreme pollen events observed by remote sensors in Southeastern Spain Conference 11th International Aerosol Conference (IAC2022) Athens, Greece, 2022. BibTeX | Tags: aerosol pollen event, aerosol radiative properties, microphysical properties, optical properties @conference{Granados-Muñoz2022, |
20. | 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. BibTeX | Tags: Cumbre Vieja volcanic eruption, GRASP, volcanic aerosol @conference{Salguero2022, |
21. | Javier Vaquero-Martínez; André F. Bagorrilha; Manuel Antón; Juan C. Antuña-Marrero; Victoria E. Cachorro Comparison of CIMEL sun-photometer and ground-based GNSS integrated water vapor over south-western European sites Journal Article In: Atmospheric Research, vol. 275, pp. 106217, 2022, ISSN: 0169-8095. Abstract | Links | BibTeX | Tags: Comparison, GNSS, Sun photometer, sun-photometer, Water vapor @article{Vaquero-Martínez2022, This work analyzes the integrated water vapor (IWV) measured at six Aerosol Robotic Network (AERONET) stations with nearby global navigation satellite system (GNSS) in the Iberian Peninsula for the period 2007–2018. It is shown that both instruments have a high correlation (R2 > 0.91), with small mbe below 1.5 mm and standard deviation (SD) below 2 mm. However, some dependences have been observed when MBE and SD are represented in bins of three variables: IWV, solar zenith angle (SZA), and aerosol optical depth (AOD). The greater or lesser amount of water vapor in the atmosphere seemed to be the more influential variable, increasing dry bias and SD with increasing IWV. Moreover, high SZA values were related to SD increases. A clear seasonal cycle for Cimel–GNSS differences was observed which was mainly related to IWV seasonal cycle. Additionally, AOD did not show a remarkable influence on Cimel–GNSS differences. Finally, the monthly differences are also analyzed with metadata information about Cimel device ID numbers, showing that, for long-term studies, this information can be very valuable. |
22. | 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. BibTeX | Tags: aerosol, GRASP, zenith sky radiance @conference{Herrero2022, |
23. | 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. BibTeX | Tags: all-sky camera, clouds, GRASP, sky radiance @conference{Román2022b, |
24. | 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. BibTeX | Tags: Aerosol Properties, all-sky camera, GRASP @conference{Román2022c, |
25. | A. Barreto; O.E. García; R. Román; M. Sicard; V. Rizi; R. Roininen; P.M. Romero- Campos; Y. González; S. Rodríguez; R.D. García; C. Torres; M. Iarlori; E. Cuevas; C. Córdoba-Jabonero; J. de La Rosa; A. Rodríguez-Gómez; C. Muñoz-Porcar; A. Comerón; A. Bedoya-Velásquez; J.C. Antuña-Sánchez; V. Neustroev; E. Pietropaolo; J. López- Darias; M.A. López-Cayuela; C. Carvajal-Pérez; J.J. Bustos; O. Álvarez; C. Toledano; C. Aramo; J. Vilches; R. González; A.F. Almansa; R. Ceolato; N. Taquet; N. Prats; A. Redondas; C.I. Bayo; R. Ramos; V. Carreño; S.L. León; P.P. Rivas; A. Alcántara; C. López; P. Martín La Palma Volcano Eruption: Characterisation of Volcanic Aerosols and Gas Emissions from a Synergetic Perspective Conference International Radiation Symposium Thessaloniki, Greece, 2022. BibTeX | Tags: La Palma, volcanic aerosol, volcanic eruption @conference{Barreto2022, |
26. | S. Kazadzis; N. Kouremeti; J. Gröbner; M. Campanelli; V. Estelles; H. Che; C. Toledano; P. Goloub; A. Barreto; T. Carlund; R. Becker; L. Doppler; F. Navas-Guzmán; M. Milner; W.S. Jung; A. Kreuter Results of 5th filter radiometer comparison of aerosol optical depth measurements Conference International Radiation Symposium Thessaloniki, Greece, 2022. BibTeX | Tags: aerosol optical depth @conference{Kazadzis2022, |
27. | D. Mateos; S. Herrero; R. Román; C. Ritter; J.C. Antuña-Sanchez; D. Ruiz-Ramos; D. González-Fernández; R. González; J.C. Antuña-Marrero; C. Toledano; V.E. Cachorro; A. Calle; A.M. de Frutos Aerosol Radiative Effect in the European Arctic Under High Turbidity Conditions in the Period 2017-2021 by Sun/Lunar Photometry Conference International Radiation Symposium Thessaloniki, Greece, 2022. BibTeX | Tags: #Arctic, High turbidity episodes, photometry, Radiative forcing @conference{Mateos2022, |
28. | A. Calle; P. Martín; C. Toledano; R. González; R. Román; D. Mateos; V. Cachorro; S. Herrero; J.C. Antuña-Marrero; D. González-Fernández; A.M. de Frutos Caracterización del espesor óptico de aerosoles en latitudes árticas y antárticas Conference XIX Congreso de la Asociación Española de Teledetección Pamplona, Spain, 2022. BibTeX | Tags: AOD, Polar Regions @conference{Calle2022, |
29. | Antuña Marrero, J.C.; Mann, G.; Barnes, J.; Shallcross, S.; Dhomse, S.; Calle, A.; Cachorro, V. E.; Deshler, T.; Zhengyao, L.; Sharma, N. Recovering lost or forgotten stratospheric lidar and searchlight datasets to provide new constraints for stratospheric change and volcanic impacts Conference 3rd International Workshop on Stratospheric Sulfur and its Role in Climate (SSiRC) Leeds, United Kingdom, 2022. @conference{Marrero2022, |
30. | García, O.; Suárez, D.; Cuevas, E.; Ramos, R.; Barreto, Á.; Hernández, M.; Quintero, V.; Toledano, C.; Sicard, M.; Córdoba-Jabonero, C.; Riz, V.; Roininen, R.; López, C.; Vilches, J.; Weiss, M.; Carreño, V.; Taquet, N.; Boulesteix, T.; Fraile, E.; Torres, C.; Prats, N.; Alcántara, A.; León, S.; Rivas, P.; Álvarez, Ó.; Parra, F.; de Luis, J.; González, C.; Armas, C.; Romero, P.; de Bustos, J.; Redondas, A.; Marrero, C.; Milford, C.; Román, R.; González, R.; López-Cayuela, M.; Carvajal-Pérez, C.; Chinea, N.; García, R.; Almansa, F.; González, Y.; Bullón, F.; Poggio, M.; Rivera, C.; Bayo, C.; Rey, F. La erupción volcánica de La Palma y el papel de la Agencia Estatal de Meteorología Journal Article In: Revista Tiempo Y Clima, vol. 5, no. 76, 2022. Abstract | Links | BibTeX | Tags: @article{García2022, Durante la erupción del volcán de Cumbre Vieja, en la isla de La Palma en 2021, la Agencia Estatal de Meteorología (AEMET), en calidad de Servicio Nacional y Autoridad Meteorológica del Estado, prestó diferentes servicios de apoyo al Comité Científico y al Comité Asesor del Plan de Emergencias Volcánicas de Canarias (PEVOLCA). Parte de sus actividades abarcaron la vigilancia y predicción meteorológica, la monitorización y predicción del transporte del penacho volcánico, y la valoración del impacto de las emisiones de gases y cenizas de la erupción volcánica en la calidad del aire en la isla de La Palma y en la región de Canarias. |
31. | J.C. Antuña-Sánchez; R. Román; J.L. Bosch; C. Toledano; D. Mateos; R. González; V.E. Cachorro; Ángel de Frutos ORION software tool for the geometrical calibration of all-sky cameras Journal Article In: PLoS ONE 17(3), 2022. Abstract | Links | BibTeX | Tags: all-sky camera, clouds, image analylis, polynomials, stars @article{Antuña-Sánchez2022, This paper presents the software application ORION (All-sky camera geOmetry calibRation from star positIONs). This software has been developed with the aim of providing geometrical calibration to all-sky cameras, i.e. assess which sky coordinates (zenith and azimuth angles) correspond to each camera pixel. It is useful to locate bodies over the celestial vault, like stars and planets, in the camera images. The user needs to feed ORION with a set of cloud-free sky images captured at night-time for obtaining the calibration matrices. ORION searches the position of various stars in the sky images. This search can be automatic or manual. The sky coordinates of the stars and the corresponding pixel positions in the camera images are used together to determine the calibration matrices. The calibration is based on three parameters: the pixel position of the sky zenith in the image; the shift angle of the azimuth viewed by the camera with respect to the real North; and the relationship between the sky zenith angle and the pixel radial distance regards to the sky zenith in the image. In addition, ORION includes other features to facilitate its use, such as the check of the accuracy of the calibration. An example of ORION application is shown, obtaining the calibration matrices for a set of images and studying the accuracy of the calibration to predict a star position. Accuracy is about 9.0 arcmin for the analyzed example using a camera with average resolution of 5.4 arcmin/pixel (about 1.7 pixels). |
32. | V. E. Cachorro; J. C. Antuña-Sanchez; Á. M. Frutos SSolar-GOA v1.0: a simple, fast, and accurate Spectral SOLAR radiative transfer model for clear skies Journal Article In: Geoscientific Model Development, vol. 15, no. 4, pp. 1689–1712, 2022. Abstract | Links | BibTeX | Tags: model, Radiative transfer, Solar radiation @article{Cachorro2022, The aim of this work is to describe the features of and to validate a simple, fast, accurate, and physically based spectral radiative transfer model in the solar wavelength range under clear skies. The model, named SSolar-GOA (the first “S” stands for “spectral”), was developed to evaluate the instantaneous values of spectral solar irradiances at ground level or at a given altitude of the atmosphere. The model requirements are designed based on the simplicity of the analytical expressions for the transmittance functions in order to be easily replicated and applied by a wide community of users for many different applications (atmospheric and environmental research studies, satellite remote sensing, solar energy, agronomy and forestry, ecology, and others). Although spectral, the model runs quickly and has sufficient accuracy for the evaluation of solar irradiances with a spectral resolution of 1–10?nm. The model assumes a single mixed molecule–aerosol scattering layer where the original Ambartsumian method of “adding layers” in a one-dimensional medium is applied, obtaining a parameterized expression for the total transmittance of scattering. Absorption by the different atmospheric gases follows “band model” parameterized expressions. The input parameters must be realistic and easily available since the spectral aerosol optical depth (AOD) is the main driver of the model. The validation of the SSolar-GOA model has been carried out through comparison with simulated irradiance data from the libRadtran package and with direct and global spectra measured by spectroradiometers. Thousands of spectra under clear skies have been compared for different atmospheric conditions and solar zenith angles (SZA). The SSolar-GOA is validated by a quantitative comparison with libRadtran, showing that it underestimates direct normal, global, and diffuse spectral components with relative differences of +1?% (RMSE?%?=?4.6–8), +3?% (RMSE?%?=?5.3–8), and 8?% (RMSE?%?=?9.3–9.6), respectively, when the SZA varies from 6 to 60?. Compared with the measured irradiance data of the LI-1800 and ASD spectroradiometers, the relative differences of direct normal and global components are within the overall experimental error, about ±2?%–12?% (RMSE?%?=?5–8.3), with underestimated or overestimated values. The diffuse component presents the highest degree of relative difference that can reach ±20?%–30?% and RMSE of 25?%–50?%. The relative differences depend strongly on the spectral solar region analysed and the SZA, but the high values of RMSE are due to the artifice generated by the different spectral resolution of the absorption coefficients of both models. Model approach errors combined with calibration instrument errors may explain the observed differences. The SSolar-GOA v1.0 is implemented in Python and open-source licensing. |
33. | Juan Carlos Antuña-Marrero; Roberto Román; Victoria E. Cachorro; David Mateos; Carlos Toledano; Abel Calle; Juan Carlos Antuña-Sánchez; Javier Vaquero-Martínez; Manuel Antón; Ángel M. Frutos Baraja Integrated water vapor over the Arctic: Comparison between radiosondes and sun photometer observations Journal Article In: Atmospheric Research, vol. 270, pp. 106059, 2022, ISSN: 0169-8095. Abstract | Links | BibTeX | Tags: AERONET, Arctic, Integrated water vapor, radiosonde, Sun photometer @article{Antuña-Marrero2022, The amplification of global warming because of the feedbacks associated with the increase in atmospheric moisture and the decrease in sea ice and snow cover in the Arctic is currently the focus of scientists, policy makers and society. The amplification of global warming is the response to increases in precipitation originally caused by climate change. Arctic predominant increases in specific humidity and precipitation have been documented by observations. In comparison, evapotranspiration in the Arctic is poorly known, in part, because the spatial and temporal sparsity of accurate in situ and remote sensing observations. Although more than 20 observations sites in the Arctic are available, where AERONET sun photometer integrated water vapor (IWV) measurements have been conducted, that information have been barely used. Here, we present a comparison of IWV observations from radiosondes and AERONET sun photometers at ten sites located across the Arctic with the goal to document the feasibility of that set of observations to contribute to the ongoing and future research on polar regions. Sun photometer IWV observations are averaged for three-time windows; 30 min, 6 and 24 h. The predominant dry bias of AERONET IWV observations with respect to radiosondes, identified at tropical and midlatitudes, is also present in the Arctic. The statistics of the comparison show robust results at eight of the ten sites, with precision and accuracy magnitudes below 8 and 2% respectively. The possible causes of the less robust results at the other two sites are discussed. In addition, the impact of selecting other temporal coincidence windows in the average sun photometer IWV used in the comparison were tested. Auto-correlation in diurnal sun photometer IWV could produce appreciable bias in the statistics used for the comparison. We suggest using only one pair of values per day, consisting in the daily mean IWV sun photometer and the IWV radiosonde observation value. This feature should be valid also for comparison of IWV from sun photometer and other instruments. Maximum 10% error level of IWV from sun photometer observations, when compared with radiosondes, have been found for the Arctic. It is in the same order of magnitude than at tropical and middle latitudes locations. It has been demonstrated the feasibility of AERONET IWV observations in the Arctic for research on this variable. AERONET standard instruments and its centralized-standard processing algorithm allow its IWV observations to be considered a relative standard dataset for the re-calibration of other instrumental IWV observations assuming radiosondes as the absolute standard dataset. |
34. | 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. Abstract | Links | BibTeX | Tags: aerosol, all-sky camera, GRASP, retrieval @article{Román2022, 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. |
35. | Albeht Rodríguez-Vega; Juan Carlos Antuña-Marrero; David Barriopedro; Ricardo García-Herrera; Victoria E. Cachorro Revilla; Ángel Frutos Baraja; Juan Carlos Antuña-Sánchez Climatology of aerosols over the Caribbean islands: aerosol types, synoptic patterns and transport Journal Article In: Journal of Applied Meteorology and Climatology, 2022. @article{ClimatologyofaerosolsovertheCaribbeanislandsaerosoltypessynopticpatternsandtransport, |
2021 |
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36. | Daniel González-Fernández; Jorge Monzón; Elena Pascual; Íñigo de Loyola; Pablo Gila; Pablo Álvarez; Víctor M. González; David Mateos Efecto Schlieren: visualización de pequeños cambios en el índice de refracción Conference XIII Reunión Nacional de Óptica (RNO) Madrid, Spain (Online), 2021. BibTeX | Tags: @conference{González-Fernández2021, |
37. | S. Herrero-Anta; D. Mateos; R. Román; D. González-Fernández; C. Toledano; R. González; J. C. Antuña-Sanchez; V. E. Cachorro; A. Calle; A. M. de Frutos Empleo de técnicas de medida láser y fotométricas para la identificación de aerosoles atmosféricos en el Círculo polar Ártico Conference XIII Reunión Nacional de Óptica (RNO) Madrid, Spain (Online), 2021. BibTeX | Tags: @conference{Herrero-Anta2021d, |
38. | A.E. Bedoya-Velásquez; S. Lefebvre; M. Herreras-Giralda; R. Román; C. Toledano; T.Huet; R.Ceolato Inverse methods for retrieving aerosol products from ceilometers Conference European Lidar Conference 2021 (ELC2021) Granada, Spain, 2021. BibTeX | Tags: Aerosol Properties, ceilometer, inverse methods @conference{Bedoya-Velásquez2021, |
39. | E. Bazo; M.J. Granados-Muñoz; J.A. Bravo-Aranda; R. Román Statistical analysis of the atmospheric aerosol radiative properties over a year in Granada Conference European Lidar Conference 2021 (ELC2021) Granada, Spain, 2021. BibTeX | Tags: aerosol radiative properties @conference{Bazo2021, |
40. | 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. BibTeX | Tags: aerosol profiles, ceilometer, GRASP, sun-photometer @conference{Bereinkua2021, |
41. | R. Román; R. González; A. Cazorla; M. Herreras-Giralda; J.C. Antuña-Sánchez; C. Toledano CAECENET: Columnar and vertically-resolved aerosol products in near-real-time joining sun/sky photometer and ceilometer measurement networks Conference European Lidar Conference 2021 (ELC2021) Granada, Spain, 2021. BibTeX | Tags: aerosol products, ceilometer, sun-sky photometry @conference{Román2021, |
42. | R. Román; R. González; J.C. Antuña-Sánchez; A. Barreto; P. Martín; C. Toledano; R. Ramos; A. Cazorla; S. Herrero-Anta; D. Mateos; O. García; D. González-Fernández; R. Carracedo; M. Herreras-Giralda; V. Carreño; A. Calle; V.E. Cachorro; E. Cuevas; A. M. de Frutos Vertical profiles of aerosol properties retrieved at La Palma, Canary Islands, during the CUmbre-Vieja volcano eruption in September-October 2021 Conference European Lidar Conference 2021 (ELC2021) Granada, Spain, 2021. BibTeX | Tags: Aerosol Properties @conference{Román2021b, |
43. | S. Herrero-Anta; D. Mateos; R. Román; D. González-Fernández; C. Toledano; R. González; V. E. Cachorro; A. Calle; A. M. de Frutos Identification and tracking of a desert dust plume detected at Ny-Ålesund, Svalbard Conference European Lidar Conference 2021 (ELC2021) Granada, Spain, 2021. BibTeX | Tags: @conference{Herrero-Anta2021c, |
44. | Antuña-Marrero, J. C.; Mann, G. W.; Barnes, J.; Rodríguez Vega, A.; Shallcross, S.; Dhomse, S.; Keckhut, P.; Nardi, B.; Thomason, L. W. SSiRC stratospheric aerosols lidar data rescue Conference Virtual Stratospheric Sulfur and its Role on Climate (SSiRC) Online, 2021. @conference{Antuña-Marrero2021c, |
45. | A. Barreto; R. Román; M. Sicard; V. Rizi; R. Roininen; P. M. Romero-Campos; Y. González; S. Rodríguez; R. D. García; C. Torres; M. Iarlori; O. E. García; E. Cuevas; C. Córdoba-Jabonero; J. de la Rosa; A. Rodríguez-Gómez; C. Muñoz-Porcar; A. Comerón; A. Bedoya-Velásquez; J.C. Antuña-Sanchez; V. Neustroev; E. Pietropaolo; Y. Lopez-Darias; J. J. Bustos; O. Álvarez; C. Toledano; C. Aramo; R. González; F.A. Almansa; R. Ceolato; N. Prats; A. Redondas; C. Bayo; R. Ramos; S. L. León; P. Martín Characterization of volcanic aerosols from a synergetic perspective during Cumbre Vieja (La Palma) eruption Conference ACTRIS Week 2021 Online, 2021. BibTeX | Tags: @conference{Barreto2021c, |
46. | Antuña-Marrero, J. C.; Estevan, R.; Landulfo, E.; Rodríguez-Vega, A.; Antuña-Sanchez, J. C Extending LALINET observations to the Upper Troposphere and Lower Stratosphere (UTLS): A challenge in the post-COVID-19 era Conference XI Workshop on Lidar Measurements in Latin America Online, 2021. @conference{Antuña-Marrero2021d, |
47. | 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; L. Alados-Arboledas; J. L. Guerrero-Rascado Intense Saharan Dust Event Over the Southern Iberian Peninsula in Spring 2021 study using GRASP Algorithm Conference XI Workshop on Lidar Measurements in Latin America (WLMÑLA XI) Punta Arenas, Chile, 2021. BibTeX | Tags: @conference{Bereinkua2021b, |
48. | O. E. García; M. Schneider; E. Sepúlveda; F. Hase; T. Blumenstock; E. Cuevas; R. Ramos; J. Gross; S. Barthlott; A. N. Röhling; E. Sanromá; Y. González; Á. J. Gómez-Peláez; M. Navarro-Comas; O. Puentedura; M. Yela; A. Redondas; V. Carre no; S. F. León-Luis; E. Reyes; R. D. García; P. P. Rivas; P. M. Romero-Campos; C. Torres; N. Prats; M. Hernández; C. López Twenty years of ground-based NDACC FTIR spectrometry at Izaña Observatory -- overview and long-term comparison to other techniques Journal Article In: Atmospheric Chemistry and Physics, vol. 21, no. 20, pp. 15519–15554, 2021. Links | BibTeX | Tags: long-term comparison, NDACC FTIR @article{García2021b, |
49. | Guerrero-Rascado, J.L.; Bereinkua, A.; Bermejo-Pantaléon, D.; Román, R.; González, R.; Cazorla, A.; Pérez-Ramírez, D.; Lyamani, H.; Aguirre-García, S. D.; Aranda, S.; Abril-Gago, J.; Granados-Muñoz, M. J.; Bravo-Aranda, J. A.; Alados-Arboledas, L.; Cariñanos, P First characterization of the pollen vertical profiles at an olive crop by remote sensing techniques Conference Air Pollution threats to Plant Ecosystems Conference Paphos, Cyprus, 2021. BibTeX | Tags: @conference{Guerrero-Rascado2021, |
50. | C Peris-Ferrús; J L Gómez-Amo; P C Valdelomar; F Scarlatti; R Román; C Emde; M P Utrillas Retrieval of cloud optical depth: synergies between whole sky imagers and radiative transfer modeling Conference Remote Sensing of Clouds and the Atmosphere XXVI (RS104) Madrid, Spain, 2021. BibTeX | Tags: @conference{Peris-Ferrús2021, |
Search an Article
2023 |
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1. | Aerosol properties retrieved under high turbidity conditions and the corresponding aerosol radiative effect in the European Arctic in the period 2017-2022 by sun photometry Conference Svalbard Science Conference 2023 Oslo, Norway, 2023. |
2. | Retrieval of aerosol properties from zenith sky radiance measurements Journal Article In: Atmospheric Measurement Techniques, vol. 16, no. 19, pp. 4423–4443, 2023. |
3. | Spectral Aerosol Radiative Forcing and Efficiency of the La Palma Volcanic Plume over the Izaña Observatory Conference ELC 2023 4th edition of the European Lidar Conference. Cluj-Napoca, Romania, 2023. |
4. | Retrieval of aerosol properties from zenith sky radiance measurements Conference European Aerosol Conference 2023, Málaga, Spain, 2023. |
5. | Analysis of daytime and night-time aerosol optical depth from sun and lunar photometry at North Central Iberian Peninsula Conference European Aerosol Conference 2023, Málaga, Spain, 2023. |
6. | Columnar aerosol properties by sun and lunar photometry in the Arctic and in the Antarctica Conference European Aerosol Conference 2023, Málaga, Spain, 2023. |
7. | Documenting the Impacts of Climate Change on the Middle and Upper Atmosphere and Atmospheric Drag of Space Objects Journal Article In: SPARC Newsletter, no. 61, pp. 22, 2023, ISSN: 1245-4680. |
8. | In: Remote Sensing of Environment, vol. 295, pp. 113684, 2023, ISSN: 0034-4257. |
9. | 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. |
10. | Revisiting basic sphere algorithms for Lorenz-Mie scattering under non-absorbing and absorbing media Conference ELX 2020, The 20th International Conference on Electromagnetic and Light Scattering Almuñecar, Spain, 2023. |
11. | Reconstruction of daily global solar radiation under all-sky and cloud-free conditions in Badajoz (Spain) since 1929 Journal Article In: International Journal of Climatology, vol. n/a, no. n/a, 2023. |
12. | Surface shortwave cloud radiative effect of cumulus and stratocumulus-cumulus cloud types in the Caribbean area (Camagüey Cuba, 2010-2016) Journal Article In: 36, vol. (1), pp. 41–56, 2023. |
13. | In: Atmospheric Research, vol. 282, pp. 106517, 2023, ISSN: 0169-8095. |
14. | Analysis of Daytime and Night-Time Aerosol Optical Depth from Solar and Lunar Photometry in Valladolid (Spain) Journal Article In: Remote Sensing, vol. 15, no. 22, 2023, ISSN: 2072-4292. |
2022 |
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15. | Spectral Aerosol Radiative Forcing and Efficiency of the La Palma Volcanic Plume over the Izaña Observatory Journal Article In: Remote Sensing, vol. 15(1), no. 17, 2022, ISSN: 2072-4292. |
16. | Vertical profiles of black carbon and nanoparticles pollutants measured by a tethered balloon in Longyearbyen (Svalbard islands) Journal Article In: Atmospheric Environment, vol. 290, pp. 119373, 2022, ISSN: 1352-2310. |
17. | Comparison of the Integrated Water Vapor from Diverse Retrievals at El Arenosillo (Southwest, Spain) Conference 11th International Aerosol Conference (IAC2022) Athens, Greece, 2022. |
18. | 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. |
19. | Analysis of optical, microphysical and radiative properties of extreme pollen events observed by remote sensors in Southeastern Spain Conference 11th International Aerosol Conference (IAC2022) Athens, Greece, 2022. |
20. | 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. |
21. | Comparison of CIMEL sun-photometer and ground-based GNSS integrated water vapor over south-western European sites Journal Article In: Atmospheric Research, vol. 275, pp. 106217, 2022, ISSN: 0169-8095. |
22. | Retrieval of aerosol properties from zenith sky radiance measurements Conference International Radiation Symposium Thessaloniki, 2022. |
23. | Impact of clouds on cloud-free sky radiances in a partially cloudy scenario Conference International Radiation Symposium Thessaloniki, Greece, 2022. |
24. | Retrieval of Aerosol Properties with an all-sky Camera Conference International Radiation Symposium Thessaloniki, Greece, 2022. |
25. | La Palma Volcano Eruption: Characterisation of Volcanic Aerosols and Gas Emissions from a Synergetic Perspective Conference International Radiation Symposium Thessaloniki, Greece, 2022. |
26. | Results of 5th filter radiometer comparison of aerosol optical depth measurements Conference International Radiation Symposium Thessaloniki, Greece, 2022. |
27. | Aerosol Radiative Effect in the European Arctic Under High Turbidity Conditions in the Period 2017-2021 by Sun/Lunar Photometry Conference International Radiation Symposium Thessaloniki, Greece, 2022. |
28. | Caracterización del espesor óptico de aerosoles en latitudes árticas y antárticas Conference XIX Congreso de la Asociación Española de Teledetección Pamplona, Spain, 2022. |
29. | Recovering lost or forgotten stratospheric lidar and searchlight datasets to provide new constraints for stratospheric change and volcanic impacts Conference 3rd International Workshop on Stratospheric Sulfur and its Role in Climate (SSiRC) Leeds, United Kingdom, 2022. |
30. | La erupción volcánica de La Palma y el papel de la Agencia Estatal de Meteorología Journal Article In: Revista Tiempo Y Clima, vol. 5, no. 76, 2022. |
31. | ORION software tool for the geometrical calibration of all-sky cameras Journal Article In: PLoS ONE 17(3), 2022. |
32. | SSolar-GOA v1.0: a simple, fast, and accurate Spectral SOLAR radiative transfer model for clear skies Journal Article In: Geoscientific Model Development, vol. 15, no. 4, pp. 1689–1712, 2022. |
33. | Integrated water vapor over the Arctic: Comparison between radiosondes and sun photometer observations Journal Article In: Atmospheric Research, vol. 270, pp. 106059, 2022, ISSN: 0169-8095. |
34. | 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. |
35. | Climatology of aerosols over the Caribbean islands: aerosol types, synoptic patterns and transport Journal Article In: Journal of Applied Meteorology and Climatology, 2022. |
2021 |
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36. | Efecto Schlieren: visualización de pequeños cambios en el índice de refracción Conference XIII Reunión Nacional de Óptica (RNO) Madrid, Spain (Online), 2021. |
37. | Empleo de técnicas de medida láser y fotométricas para la identificación de aerosoles atmosféricos en el Círculo polar Ártico Conference XIII Reunión Nacional de Óptica (RNO) Madrid, Spain (Online), 2021. |
38. | Inverse methods for retrieving aerosol products from ceilometers Conference European Lidar Conference 2021 (ELC2021) Granada, Spain, 2021. |
39. | Statistical analysis of the atmospheric aerosol radiative properties over a year in Granada Conference European Lidar Conference 2021 (ELC2021) Granada, Spain, 2021. |
40. | 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. |
41. | CAECENET: Columnar and vertically-resolved aerosol products in near-real-time joining sun/sky photometer and ceilometer measurement networks Conference European Lidar Conference 2021 (ELC2021) Granada, Spain, 2021. |
42. | Vertical profiles of aerosol properties retrieved at La Palma, Canary Islands, during the CUmbre-Vieja volcano eruption in September-October 2021 Conference European Lidar Conference 2021 (ELC2021) Granada, Spain, 2021. |
43. | Identification and tracking of a desert dust plume detected at Ny-Ålesund, Svalbard Conference European Lidar Conference 2021 (ELC2021) Granada, Spain, 2021. |
44. | SSiRC stratospheric aerosols lidar data rescue Conference Virtual Stratospheric Sulfur and its Role on Climate (SSiRC) Online, 2021. |
45. | Characterization of volcanic aerosols from a synergetic perspective during Cumbre Vieja (La Palma) eruption Conference ACTRIS Week 2021 Online, 2021. |
46. | Extending LALINET observations to the Upper Troposphere and Lower Stratosphere (UTLS): A challenge in the post-COVID-19 era Conference XI Workshop on Lidar Measurements in Latin America Online, 2021. |
47. | Intense Saharan Dust Event Over the Southern Iberian Peninsula in Spring 2021 study using GRASP Algorithm Conference XI Workshop on Lidar Measurements in Latin America (WLMÑLA XI) Punta Arenas, Chile, 2021. |
48. | Twenty years of ground-based NDACC FTIR spectrometry at Izaña Observatory -- overview and long-term comparison to other techniques Journal Article In: Atmospheric Chemistry and Physics, vol. 21, no. 20, pp. 15519–15554, 2021. |
49. | First characterization of the pollen vertical profiles at an olive crop by remote sensing techniques Conference Air Pollution threats to Plant Ecosystems Conference Paphos, Cyprus, 2021. |
50. | Retrieval of cloud optical depth: synergies between whole sky imagers and radiative transfer modeling Conference Remote Sensing of Clouds and the Atmosphere XXVI (RS104) Madrid, Spain, 2021. |