Column integrated water vapor and aerosol load characterization with the new ZEN-R52 radiometer
The study shows the first results of the column-integrated water vapor retrieved by the new ZEN-R52 radiometer. This new radiometer has been specifically designed to monitor aerosols and atmospheric water vapor with a high degree of autonomy and robustness in order to allow the expansion of the obse...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Multidisciplinary Digital Publishing Institute
2020
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Online Access: | https://hdl.handle.net/20.500.11765/11783 |
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ftaemet:oai:repositorio.aemet.es:20.500.11765/11783 2024-06-23T07:45:00+00:00 Column integrated water vapor and aerosol load characterization with the new ZEN-R52 radiometer Almansa Rodríguez, Antonio Fernando Cuevas Agulló, Emilio Barreto Velasco, África Torres, Benjamín García Rodríguez, Omaira Elena García Cabrera, Rosa Delia Velasco Merino, Cristian Cachorro, Victoria E. Berjón, Alberto Mallorquín Díaz, Manuel López, César Ramos López, Ramón Guirado-Fuentes, Carmen Negrillo, Ramón Frutos Baraja, Ángel Máximo de 2020 https://hdl.handle.net/20.500.11765/11783 eng eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/rs12091424 info:eu-repo/grantAgreement/EC/FP7/262254 Remote Sensing. 2020, 12(9), 1424 2072-4292 http://hdl.handle.net/20.500.11765/11783 Licencia CC: Reconocimiento CC BY info:eu-repo/semantics/openAccess Precipitable water vapor Aerosol optical depth Zenith sky radiance Remote sensing Lookup table Radiative transfer info:eu-repo/semantics/article 2020 ftaemet https://doi.org/20.500.11765/1178310.3390/rs12091424 2024-06-03T14:17:57Z The study shows the first results of the column-integrated water vapor retrieved by the new ZEN-R52 radiometer. This new radiometer has been specifically designed to monitor aerosols and atmospheric water vapor with a high degree of autonomy and robustness in order to allow the expansion of the observations of these parameters to remote desert areas from ground-based platforms. The ZEN-R52 device shows substantial improvements compared to the previous ZEN-R41 prototype: a smaller field of view, an increased signal-to-noise ratio, better stray light rejection, and an additional channel (940 nm) for precipitable water vapor (PWV) retrieval. PWV is inferred from the ZEN-R52 Zenith Sky Radiance (ZSR) measurements using a lookup table (LUT) methodology. The improvement of the new ZEN-R52 in terms of ZSR was verified by means of a comparison with the ZEN-R41, and with the Aerosol Robotic Network (AERONET) Cimel CE318 (CE318-AERONET) at Izaña Observatory, a Global Atmosphere Watch (GAW) high mountain station (Tenerife, Canary Islands, Spain), over a 10-month period (August 2017 to June 2018). ZEN-R52 aerosol optical depth (AOD) was extracted by means of the ZEN–AOD–LUT method with an uncertainty of ±0.01 ± 0.13*AOD. ZEN-R52 PWV extracted using a new LUT technique was compared with quasi-simultaneous (±30 s) Fourier Transform Infrared (FTIR) spectrometer measurements as reference. A good agreement was found between the two instruments (PWV means a relative difference of 9.1% and an uncertainty of ±0.089 cm or ±0.036 + 0.061*PWV for PWV <1 cm). This comparison analysis was extended using two PWV datasets from the same CE318 reference instrument at Izaña Observatory: one obtained from AERONET (CE318-AERONET), and another one using a specific calibration of the 940-nm channel performed in this work at Izaña Atmospheric Research Center Observatory (CE318-IARC), which improves the PWV product. This work has been developed within the framework of the activities of the World Meteorological Organization (WMO) Commission ... Article in Journal/Newspaper Aerosol Robotic Network ARCIMÍS (Archivo Climatológico y Meteorológico Institucional - AEMET, Agencia Estatal de Meteorología) Remote Sensing 12 9 1424 |
institution |
Open Polar |
collection |
ARCIMÍS (Archivo Climatológico y Meteorológico Institucional - AEMET, Agencia Estatal de Meteorología) |
op_collection_id |
ftaemet |
language |
English |
topic |
Precipitable water vapor Aerosol optical depth Zenith sky radiance Remote sensing Lookup table Radiative transfer |
spellingShingle |
Precipitable water vapor Aerosol optical depth Zenith sky radiance Remote sensing Lookup table Radiative transfer Almansa Rodríguez, Antonio Fernando Cuevas Agulló, Emilio Barreto Velasco, África Torres, Benjamín García Rodríguez, Omaira Elena García Cabrera, Rosa Delia Velasco Merino, Cristian Cachorro, Victoria E. Berjón, Alberto Mallorquín Díaz, Manuel López, César Ramos López, Ramón Guirado-Fuentes, Carmen Negrillo, Ramón Frutos Baraja, Ángel Máximo de Column integrated water vapor and aerosol load characterization with the new ZEN-R52 radiometer |
topic_facet |
Precipitable water vapor Aerosol optical depth Zenith sky radiance Remote sensing Lookup table Radiative transfer |
description |
The study shows the first results of the column-integrated water vapor retrieved by the new ZEN-R52 radiometer. This new radiometer has been specifically designed to monitor aerosols and atmospheric water vapor with a high degree of autonomy and robustness in order to allow the expansion of the observations of these parameters to remote desert areas from ground-based platforms. The ZEN-R52 device shows substantial improvements compared to the previous ZEN-R41 prototype: a smaller field of view, an increased signal-to-noise ratio, better stray light rejection, and an additional channel (940 nm) for precipitable water vapor (PWV) retrieval. PWV is inferred from the ZEN-R52 Zenith Sky Radiance (ZSR) measurements using a lookup table (LUT) methodology. The improvement of the new ZEN-R52 in terms of ZSR was verified by means of a comparison with the ZEN-R41, and with the Aerosol Robotic Network (AERONET) Cimel CE318 (CE318-AERONET) at Izaña Observatory, a Global Atmosphere Watch (GAW) high mountain station (Tenerife, Canary Islands, Spain), over a 10-month period (August 2017 to June 2018). ZEN-R52 aerosol optical depth (AOD) was extracted by means of the ZEN–AOD–LUT method with an uncertainty of ±0.01 ± 0.13*AOD. ZEN-R52 PWV extracted using a new LUT technique was compared with quasi-simultaneous (±30 s) Fourier Transform Infrared (FTIR) spectrometer measurements as reference. A good agreement was found between the two instruments (PWV means a relative difference of 9.1% and an uncertainty of ±0.089 cm or ±0.036 + 0.061*PWV for PWV <1 cm). This comparison analysis was extended using two PWV datasets from the same CE318 reference instrument at Izaña Observatory: one obtained from AERONET (CE318-AERONET), and another one using a specific calibration of the 940-nm channel performed in this work at Izaña Atmospheric Research Center Observatory (CE318-IARC), which improves the PWV product. This work has been developed within the framework of the activities of the World Meteorological Organization (WMO) Commission ... |
format |
Article in Journal/Newspaper |
author |
Almansa Rodríguez, Antonio Fernando Cuevas Agulló, Emilio Barreto Velasco, África Torres, Benjamín García Rodríguez, Omaira Elena García Cabrera, Rosa Delia Velasco Merino, Cristian Cachorro, Victoria E. Berjón, Alberto Mallorquín Díaz, Manuel López, César Ramos López, Ramón Guirado-Fuentes, Carmen Negrillo, Ramón Frutos Baraja, Ángel Máximo de |
author_facet |
Almansa Rodríguez, Antonio Fernando Cuevas Agulló, Emilio Barreto Velasco, África Torres, Benjamín García Rodríguez, Omaira Elena García Cabrera, Rosa Delia Velasco Merino, Cristian Cachorro, Victoria E. Berjón, Alberto Mallorquín Díaz, Manuel López, César Ramos López, Ramón Guirado-Fuentes, Carmen Negrillo, Ramón Frutos Baraja, Ángel Máximo de |
author_sort |
Almansa Rodríguez, Antonio Fernando |
title |
Column integrated water vapor and aerosol load characterization with the new ZEN-R52 radiometer |
title_short |
Column integrated water vapor and aerosol load characterization with the new ZEN-R52 radiometer |
title_full |
Column integrated water vapor and aerosol load characterization with the new ZEN-R52 radiometer |
title_fullStr |
Column integrated water vapor and aerosol load characterization with the new ZEN-R52 radiometer |
title_full_unstemmed |
Column integrated water vapor and aerosol load characterization with the new ZEN-R52 radiometer |
title_sort |
column integrated water vapor and aerosol load characterization with the new zen-r52 radiometer |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2020 |
url |
https://hdl.handle.net/20.500.11765/11783 |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_relation |
https://dx.doi.org/10.3390/rs12091424 info:eu-repo/grantAgreement/EC/FP7/262254 Remote Sensing. 2020, 12(9), 1424 2072-4292 http://hdl.handle.net/20.500.11765/11783 |
op_rights |
Licencia CC: Reconocimiento CC BY info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/20.500.11765/1178310.3390/rs12091424 |
container_title |
Remote Sensing |
container_volume |
12 |
container_issue |
9 |
container_start_page |
1424 |
_version_ |
1802647081848930304 |