2022 |
|
1. | 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. |
2021 |
|
2. | Rosa Delia García; Emilio Cuevas; Victoria Eugenia Cachorro; Omaira E. García; África Barreto; A. Fernando Almansa; Pedro M. Romero-Campos; Ramón Ramos; Mário Pó; Kees Hoogendijk; Jochen Gross Water Vapor Retrievals from Spectral Direct Irradiance Measured with an EKO MS-711 Spectroradiometer—Intercomparison with Other Techniques Journal Article In: Remote Sensing, vol. 13, no. 3, 2021, ISSN: 2072-4292. Abstract | Links | BibTeX | Tags: EKO MS-711 spectroradiometer, Monte-Carlo method, spectral direct irradiance, Water vapor @article{García2021, Precipitable water vapor retrievals are of major importance for assessing and understanding atmospheric radiative balance and solar radiation resources. On that basis, this study presents the first PWV values measured with a novel EKO MS-711 grating spectroradiometer from direct normal irradiance in the spectral range between 930 and 960 nm at the Izaña Observatory (IZO, Spain) between April and December 2019. The expanded uncertainty of PWV (UPWV) was theoretically evaluated using the Monte-Carlo method, obtaining an averaged value of 0.37 ± 0.11 mm. The estimated uncertainty presents a clear dependence on PWV. For PWV ≤ 5 mm (62% of the data), the mean UPWV is 0.31 ± 0.07 mm, while for PWV > 5 mm (38% of the data) is 0.47 ± 0.08 mm. In addition, the EKO PWV retrievals were comprehensively compared against the PWV measurements from several reference techniques available at IZO, including meteorological radiosondes, Global Navigation Satellite System (GNSS), CIMEL-AERONET sun photometer and Fourier Transform Infrared spectrometry (FTIR). The EKO PWV values closely align with the above mentioned different techniques, providing a mean bias and standard deviation of −0.30 ± 0.89 mm, 0.02 ± 0.68 mm, −0.57 ± 0.68 mm, and 0.33 ± 0.59 mm, with respect to the RS92, GNSS, FTIR and CIMEL-AERONET, respectively. According to the theoretical analysis, MB decreases when comparing values for PWV > 5 mm, leading to a PWV MB between −0.45 mm (EKO vs. FTIR), and 0.11 mm (EKO vs. CIMEL-AERONET). These results confirm that the EKO MS-711 spectroradiometer is precise enough to provide reliable PWV data on a routine basis and, as a result, can complement existing ground-based PWV observations. The implementation of PWV measurements in a spectroradiometer increases the capabilities of these types of instruments to simultaneously obtain key parameters used in certain applications such as monitoring solar power plants performance. |
2020 |
|
3. | Javier Vaquero-Martínez; Manuel Antón; Arturo Sanchez-Lorenzo; Victoria E Cachorro Evaluation of Water Vapor Radiative Effects Using GPS Data Series over Southwestern Europe Journal Article In: Remote Sensing, vol. 12, no. 8, 2020, ISSN: 2072-4292. Abstract | Links | BibTeX | Tags: Europe, long-wave, radiativa effect, Radiative transfer, Sourthwestern Europe, Spain, Water vapor @article{rs12081307, Water vapor radiative effects (WVRE) at surface in the long-wave (LW) and short-wave (SW) spectral ranges under cloud and aerosol free conditions are analyzed for seven stations in Spain over the 2007–2015 period. WVRE is calculated as the difference between the net flux obtained by two radiative transfer simulations; one with water vapor from Global Positioning System (GPS) measurements and the other one without any water vapor (dry atmosphere). The WVRE in the LW ranges from 107.9 Wm 2 to 296.7 Wm − 2 , while in the SW it goes from − 64.9 Wm − 2 to − 6.0 Wm − 2 . The results show a clear seasonal cycle, which allows the classification of stations in three sub-regions. In general, for total (SW + LW) and LW WVRE, winter (DJF) and spring (MAM) values are lower than summer (JJA) and autumn (SON). However, in the case of SW WVRE, the weaker values are in winter and autumn, and the stronger ones in summer and spring. Positive trends for LW (and total) WVRE may partially explain the well-known increase of surface air temperatures in the study region. Additionally, negative trends for SW WVRE are especially remarkable, since they represent about a quarter of the contribution of aerosols to the strong brightening effect (increase of the SW radiation flux at surface associated with a reduction of the cloud cover and aerosol load) observed since the 2000s in the Iberian Peninsula, but with opposite sign, so it is suggested that water vapor could be partially masking the full magnitude of this brightening. |
4. | Javier Vaquero-Martínez; Manuel Antón; Roberto Román; Victoria E Cachorro; Huiqun Wang; Gonzalo González Abad; Christoph Ritter Water vapor satellite products in the European Arctic: An inter-comparison against GNSS data Journal Article In: Science of The Total Environment, vol. 741, pp. 140335, 2020. Links | BibTeX | Tags: European Artic, GNSS, Ny-Alesund, Satellite, Water vapor @article{vaquero2020water, |
5. | Victoria E Cachorro; Manuel Antón Editorial for the Special Issue “Remote Sensing of Atmospheric Components and Water Vapor” Journal Article In: Remote Sensing, vol. 12, no. 13, 2020, ISSN: 2072-4292. Abstract | Links | BibTeX | Tags: atmosphere, atmospheric gases, LIDAR, Ozone, pollutant, radiometry, remote sensing, sensor satellinte, spectroscopy, Water vapor @article{rs12132074, The observation/monitoring of atmospheric components and water vapor in the atmosphere is today open to very different remote sensing techniques, most of them based on the radiation-matter interaction covering the full electromagnetic spectrum. This SI collects some papers regarding the retrieval, calibration, validation, analysis of data and uncertainties, as well as comparative studies on atmospheric gases and water vapor by remote sensing techniques, where different types of sensors, instruments, and algorithms are used or developed. |
2019 |
|
6. | J. Vaquero-Martínez; M. Antón; A.F. Bagorrilha; J.P. Ortiz de Galisteo; V.E. Cachorro; R. Román Preliminary validation of CIMEL water vapor product against GPS data in Spain Conference 7th Iberian Meeting on Aerosol Science and Technology (RICTA'19) Lisbon, Portugal, 2019. BibTeX | Tags: CIMEL, GPS, Water vapor @conference{Vaquero-Martínez2019b, |
7. | 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. In: Atmospheric Chemistry and Physics, vol. 19, pp. 523 - 542, 2019. Links | BibTeX | Tags: GRASP, LIDAR, Radiative forcing, Water vapor @article{GranadosACP2019, |
8. | JAVIER VAQUERO-MARTÍNEZ; M. ANTON; JOSÉ PABLO ORTIZ DE GALISTEO; ROBERTO ROMÁN; VICTORIA E. CACHORRO; DAVID MATEOS Comparison of integrated water vapor from GNSS and radiosounding at four GRUAN stations Journal Article In: Science of the Total Environment, vol. 2019-01-01, no. 648, pp. 1639-1648, 2019. Links | BibTeX | Tags: GNSS, GPS, IWV, radiosonde, Water vapor @article{VAQUERO-MARTÍNEZ2019, |
9. | Pérez-Ramírez, D. ;Smirnov, A. ;Pinker, R.T. ;Petrenko, M. ;Román, R. ;Chen, W. ;Ichoku, C. ;Nöel, S. ;González-Abad, G. ;Lyamani, H. ;Holben, B.N. In: Atmospheric Research, vol. 215, pp. 294-304, 2019. Links | BibTeX | Tags: AERONET, IWV, Satellite, Water vapor @article{Perez-RamirezAtmosRes2019, |
10. | Bedoya, A.E. ;Navas-Guzmán, F. ;de Arruda-Moreira, G. ;Román, R. ;Cazorla, A. ;Ortiz-Amezcua, P. ;Benavent-Oltra, J.A. ;Alados-Arboledas, L. ;Olmo-Reyes, F.J. ;Foyo-Moreno, I. ;Montilla-Rosero, E. ;Hoyos, C.D. ;Guerrero-Rascado, J.L. Seasonal analysis of the atmosphere during five years by using microwave radiometry over a mid-latitude site Journal Article In: Atmospheric Research, vol. 218, pp. 78-89, 2019. Links | BibTeX | Tags: microwave radiometer, pbl, Water vapor @article{BedoyaAtmosRes2019, |
2018 |
|
11. | Javier Vaquero-Martínez; Manuel Antón; José Pablo Ortiz de Galisteo; Victoria E. Cachorro; Pablo Álvarez-Zapatero; Roberto Román; Diego Loyola; Maria João Costa; Huiquin Wang; Gonzalo González Abad; Stefan Noël Inter-comparison of integrated water vapor from satellite instruments using reference GPS data at the Iberian Peninsula Journal Article In: Remote Sensing of Environment, vol. 204, pp. 729-740, 2018, ISSN: 0034-4257. Abstract | Links | BibTeX | Tags: GPS, IWV, Satellite, Validation, Water vapor @article{VAQUEROMARTINEZ2017, This paper focuses on the inter-comparison of integrated water vapor (IWV) products derived from the following satellite instruments: Global Ozone Monitoring Instrument (GOME-2), Moderate-Resolution Imaging Spectroradiometer (MODIS) on the Terra and Aqua satellites, Ozone Monitoring Instrument (OMI), Spining Enhanced Visible and InfraRed Imager (SEVIRI), Atmospheric Infrared Sounder (AIRS), and Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY). IWV data from GPS in nine ground-based stations located in the Iberian Peninsula are used as reference. The study period extends from 2007 to 2012. The results show that, in general, OMI has good accuracy (pseudomedian of the relative differences between OMI and GPS IWV of ( ?0.7 ± 1.1)%). However, OMI, SCIAMACHY and AIRS show higher inter-quartile range (IQR) (which indicates lower precision) than the rest of satellite instruments. Both MODIS satellite instruments and SEVIRI products tend to slightly underestimate reference IWV data while GOME-2 exhibits a notable overestimation (16.7 ± 0.8%). All satellite instruments showed a tendency to reduce IWV extreme values: low IWV is overestimated while high IWV is underestimated. As for the influence of solar zenith angle (SZA), it can be observed that GOME-2 strongly overestimates the reference for high SZA values (by around 60% for SZA 60 ? 80°). OMI shows, however, a high IQR for high SZA values. Both MODIS instruments show an increase in the pseudomedian of relative differences and IQR with SZA at daytime, with more stable values at night. Seasonal dependence is mainly due to the SZA and IWV typical values in each season. In general, in summer the tendency is to underestimate with low IQR (which happens when IWV is high and SZA is low), and in winter the trend is to overestimate with high IQR (which happens when IWV is low and SZA is high). SCIAMACHY shows a high pseudomedian in summer and autumn, and lower in winter and spring. It must be noted that GOME-2 shows a higher overestimation and OMI shows a higher IQR than other satellite instruments in winter and autumn. The influence of clouds was also studied, showing an increase of IQR as cloudiness increases in all satellites. Pseudomedian also worsens as cloudiness increases, generally |
12. | J. Vaquero-Martínez; M. Antón; J.P. Ortíz de Galisteo; R. Román: V.E. Cachorro Water vapor radiative effects on short-wave radiation in Spain Journal Article In: Atmospheric Research, vol. 205, pp. 18-25, 2018. Links | BibTeX | Tags: GPS, IWV, Radiative forcing, Water vapor @article{Vaquero2018AtmosRes, |
13. | Bedoya-Velasquez, A. ;Navas-Guzmán, F. ;Granados-Muñoz, M.J. ;Titos, G. ;Román, R. ;Casquero-Vera, J.A. ;Ortiz-Amezcua, P. ;Benavent-Oltra, J.A. ;de Arruda-Moreira, G. ;Montilla, R. ;Hoyos-Ortiz, C.D. ;Artiñano, B. ;Coz, E. ;Olmo-Reyes, F.J. ;Alados-Arboledas, L. ;Guerrero-Rascado, J.L. Hygroscopic growth study in the framework of EARLINET during the SLOPE I campaign: synergy of remote sensing and in-situ instrumentation Journal Article In: Atmospheric Chemistry and Physics, vol. 18, pp. 7001 - 7017, 2018. Links | BibTeX | Tags: aerosol, hygroscopic, LIDAR, microwave radiometer, pbl, Water vapor @article{BedoyaACP2018, |
14. | 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. BibTeX | Tags: GRASP, LIDAR, Radiative forcing, Water vapor @inproceedings{GranadosIGARRS2018, |
15. | Vaquero-Martínez, J. ;Antón, M. ;Ortíz de Galisteo, J.p. ;Cachorro, V.E. ;Álvarez-Zapatero, P. ;Román, R. ;Loyola, D. ;Costa, M.J. ;Wang, H. ;González-Abad, G. Validation of atmospheric water vapor from several satellite instruments using GPS measurements at Spanish stations under cloud-free conditions Proceedings Article In: IGARSS 2018-2018 IEEE International Geoscience and Remote Sensing Symposium. , pp. 1176 - 1179, IEEE Geoscience and Remote Sensing Society, 2018, ISBN: 978-1-5386-7150-4. BibTeX | Tags: GPS, IWV, Satellite, Water vapor @inproceedings{VaqueroIGARRS2018, |
2017 |
|
16. | Javier Vaquero-Martínez; Manuel Antón; José Pablo Ortiz de Galisteo; Victoria E. Cachorro; Maria João Costa; Roberto Román; Yasmine S. Bennouna Validation of MODIS integrated water vapor product against reference GPS data at the Iberian Peninsula Journal Article In: International Journal of Applied Earth Observation and Geoinformation, vol. 63, no. Supplement C, pp. 214 - 221, 2017, ISSN: 0303-2434. Links | BibTeX | Tags: GPS, IWV, MODIS, Satellite, Validation, Water vapor @article{VAQUEROMARTINEZ2017214, |
2016 |
|
17. | Cuevas, E., C. Guirado, A. Barreto, R. García, O. García, M. Schneider, P.M. Romero-Campos, F. Almansa, J. López-Solano, A. Redondas, R. Ramos WMO-CIMO Testbed for Aerosols and Water Vapor Remote Sensing Instruments (Izaña, Spain) Conference World Meteorological Organization Madrid, Spain, 2016, (2016 WMO CIMO Technical Conference on Meteorological and Environmental Instruments and Methods of Observation (CIMO TECO-2016)). BibTeX | Tags: aerosol optical depth, Water vapor @conference{Cuevas2016, |
2009 |
|
18. | B. Torres, V. E. Cachorro, P. Ortiz, A. Berjón, C. Toledano, A. M. de Frutos Integrated water vapor (IWV) climatology with RIMA-AERONET sunphotometers,GPS and Radiosondes in the Southwestern of Spain Conference European Aerosol Assembly Karlsruhe, Germany, 2009, (European Aerosol Conference 2009). BibTeX | Tags: GPS, Water vapor @conference{Torres2009, |
Search an Article
2022 |
|
1. | 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. |
2021 |
|
2. | Water Vapor Retrievals from Spectral Direct Irradiance Measured with an EKO MS-711 Spectroradiometer—Intercomparison with Other Techniques Journal Article In: Remote Sensing, vol. 13, no. 3, 2021, ISSN: 2072-4292. |
2020 |
|
3. | Evaluation of Water Vapor Radiative Effects Using GPS Data Series over Southwestern Europe Journal Article In: Remote Sensing, vol. 12, no. 8, 2020, ISSN: 2072-4292. |
4. | Water vapor satellite products in the European Arctic: An inter-comparison against GNSS data Journal Article In: Science of The Total Environment, vol. 741, pp. 140335, 2020. |
5. | Editorial for the Special Issue “Remote Sensing of Atmospheric Components and Water Vapor” Journal Article In: Remote Sensing, vol. 12, no. 13, 2020, ISSN: 2072-4292. |
2019 |
|
6. | Preliminary validation of CIMEL water vapor product against GPS data in Spain Conference 7th Iberian Meeting on Aerosol Science and Technology (RICTA'19) Lisbon, Portugal, 2019. |
7. | In: Atmospheric Chemistry and Physics, vol. 19, pp. 523 - 542, 2019. |
8. | Comparison of integrated water vapor from GNSS and radiosounding at four GRUAN stations Journal Article In: Science of the Total Environment, vol. 2019-01-01, no. 648, pp. 1639-1648, 2019. |
9. | In: Atmospheric Research, vol. 215, pp. 294-304, 2019. |
10. | Seasonal analysis of the atmosphere during five years by using microwave radiometry over a mid-latitude site Journal Article In: Atmospheric Research, vol. 218, pp. 78-89, 2019. |
2018 |
|
11. | Inter-comparison of integrated water vapor from satellite instruments using reference GPS data at the Iberian Peninsula Journal Article In: Remote Sensing of Environment, vol. 204, pp. 729-740, 2018, ISSN: 0034-4257. |
12. | Water vapor radiative effects on short-wave radiation in Spain Journal Article In: Atmospheric Research, vol. 205, pp. 18-25, 2018. |
13. | Hygroscopic growth study in the framework of EARLINET during the SLOPE I campaign: synergy of remote sensing and in-situ instrumentation Journal Article In: Atmospheric Chemistry and Physics, vol. 18, pp. 7001 - 7017, 2018. |
14. | 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. |
15. | Validation of atmospheric water vapor from several satellite instruments using GPS measurements at Spanish stations under cloud-free conditions Proceedings Article In: IGARSS 2018-2018 IEEE International Geoscience and Remote Sensing Symposium. , pp. 1176 - 1179, IEEE Geoscience and Remote Sensing Society, 2018, ISBN: 978-1-5386-7150-4. |
2017 |
|
16. | Validation of MODIS integrated water vapor product against reference GPS data at the Iberian Peninsula Journal Article In: International Journal of Applied Earth Observation and Geoinformation, vol. 63, no. Supplement C, pp. 214 - 221, 2017, ISSN: 0303-2434. |
2016 |
|
17. | WMO-CIMO Testbed for Aerosols and Water Vapor Remote Sensing Instruments (Izaña, Spain) Conference World Meteorological Organization Madrid, Spain, 2016, (2016 WMO CIMO Technical Conference on Meteorological and Environmental Instruments and Methods of Observation (CIMO TECO-2016)). |
2009 |
|
18. | Integrated water vapor (IWV) climatology with RIMA-AERONET sunphotometers,GPS and Radiosondes in the Southwestern of Spain Conference European Aerosol Assembly Karlsruhe, Germany, 2009, (European Aerosol Conference 2009). |