Different strategies to retrieve aerosol properties at night-time with the GRASP algorithm
This study evaluates the potential of the GRASP algorithm (Generalized Retrieval of Aerosol and Surface Properties) to retrieve continuous day-to-night aerosol properties, both column-integrated and vertically resolved. The study is focused on the evaluation of GRASP retrievals during an intense Sah...
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Online Access: | https://hdl.handle.net/20.500.11765/11682 |
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ftaemet:oai:repositorio.aemet.es:20.500.11765/11682 2024-06-23T07:45:00+00:00 Different strategies to retrieve aerosol properties at night-time with the GRASP algorithm Benavent Oltra, José Antonio Román, Roberto Casquero Vera, Juan Andrés Pérez Ramírez, Daniel Lyamani, Hassan Ortiz Amezcua, Pablo Bedoya Velásquez, Andrés Esteban Arruda Moreira, Gregori de Barreto Velasco, África Lopatin, Anton Fuertes Marrón, David Herrera, Milagros Torres, Benjamín Dubovik, Oleg Guerrero-Rascado, Juan Luis Goloub, Philippe Olmo Reyes, Francisco José Alados Arboledas, Lucas 2019 https://hdl.handle.net/20.500.11765/11682 eng eng European Geosciences Union https://dx.doi.org/10.5194/acp-19-14149-2019 info:eu-repo/grantAgreement/EC/H2020/654109 Atmospheric Chemistry and Physics. 2019, 19(22), p. 14149–14171 1680-7316 1680-7324 http://hdl.handle.net/20.500.11765/11682 Licencia CC: Reconocimiento CC BY info:eu-repo/semantics/openAccess GRASP algorithm Aerosol properties Atmospheric aerosol optical AERONET info:eu-repo/semantics/article 2019 ftaemet https://doi.org/20.500.11765/1168210.5194/acp-19-14149-2019 2024-06-03T14:17:57Z This study evaluates the potential of the GRASP algorithm (Generalized Retrieval of Aerosol and Surface Properties) to retrieve continuous day-to-night aerosol properties, both column-integrated and vertically resolved. The study is focused on the evaluation of GRASP retrievals during an intense Saharan dust event that occurred during the Sierra Nevada Lidar aerOsol Profiling Experiment I (SLOPE I) field campaign. For daytime aerosol retrievals, we combined the measurements of the ground-based lidar from EARLINET (European Aerosol Research Lidar Network) station and sun–sky photometer from AERONET (Aerosol Robotic Network), both instruments co-located in Granada (Spain). However, for night-time retrievals three different combinations of active and passive remote-sensing measurements are proposed. The first scheme (N0) uses lidar night-time measurements in combination with the interpolation of sun–sky daytime measurements. The other two schemes combine lidar night-time measurements with night-time aerosol optical depth obtained by lunar photometry either using intensive properties of the aerosol retrieved during sun–sky daytime measurements (N1) or using the Moon aureole radiance obtained by sky camera images (N2). Evaluations of the columnar aerosol properties retrieved by GRASP are done versus standard AERONET retrievals. The coherence of day-to-night evolutions of the different aerosol properties retrieved by GRASP is also studied. The extinction coefficient vertical profiles retrieved by GRASP are compared with the profiles calculated by the Raman technique at night-time with differences below 30 % for all schemes at 355, 532 and 1064 nm. Finally, the volume concentration and scattering coefficient retrieved by GRASP at 2500 m a.s.l. are evaluated by in situ measurements at this height at Sierra Nevada Station. The differences between GRASP and in situ measurements are similar for the different schemes, with differences below 30 % for both volume concentration and scattering coefficient. In general, for the ... Article in Journal/Newspaper Aerosol Robotic Network ARCIMÍS (Archivo Climatológico y Meteorológico Institucional - AEMET, Agencia Estatal de Meteorología) Atmospheric Chemistry and Physics 19 22 14149 14171 |
institution |
Open Polar |
collection |
ARCIMÍS (Archivo Climatológico y Meteorológico Institucional - AEMET, Agencia Estatal de Meteorología) |
op_collection_id |
ftaemet |
language |
English |
topic |
GRASP algorithm Aerosol properties Atmospheric aerosol optical AERONET |
spellingShingle |
GRASP algorithm Aerosol properties Atmospheric aerosol optical AERONET Benavent Oltra, José Antonio Román, Roberto Casquero Vera, Juan Andrés Pérez Ramírez, Daniel Lyamani, Hassan Ortiz Amezcua, Pablo Bedoya Velásquez, Andrés Esteban Arruda Moreira, Gregori de Barreto Velasco, África Lopatin, Anton Fuertes Marrón, David Herrera, Milagros Torres, Benjamín Dubovik, Oleg Guerrero-Rascado, Juan Luis Goloub, Philippe Olmo Reyes, Francisco José Alados Arboledas, Lucas Different strategies to retrieve aerosol properties at night-time with the GRASP algorithm |
topic_facet |
GRASP algorithm Aerosol properties Atmospheric aerosol optical AERONET |
description |
This study evaluates the potential of the GRASP algorithm (Generalized Retrieval of Aerosol and Surface Properties) to retrieve continuous day-to-night aerosol properties, both column-integrated and vertically resolved. The study is focused on the evaluation of GRASP retrievals during an intense Saharan dust event that occurred during the Sierra Nevada Lidar aerOsol Profiling Experiment I (SLOPE I) field campaign. For daytime aerosol retrievals, we combined the measurements of the ground-based lidar from EARLINET (European Aerosol Research Lidar Network) station and sun–sky photometer from AERONET (Aerosol Robotic Network), both instruments co-located in Granada (Spain). However, for night-time retrievals three different combinations of active and passive remote-sensing measurements are proposed. The first scheme (N0) uses lidar night-time measurements in combination with the interpolation of sun–sky daytime measurements. The other two schemes combine lidar night-time measurements with night-time aerosol optical depth obtained by lunar photometry either using intensive properties of the aerosol retrieved during sun–sky daytime measurements (N1) or using the Moon aureole radiance obtained by sky camera images (N2). Evaluations of the columnar aerosol properties retrieved by GRASP are done versus standard AERONET retrievals. The coherence of day-to-night evolutions of the different aerosol properties retrieved by GRASP is also studied. The extinction coefficient vertical profiles retrieved by GRASP are compared with the profiles calculated by the Raman technique at night-time with differences below 30 % for all schemes at 355, 532 and 1064 nm. Finally, the volume concentration and scattering coefficient retrieved by GRASP at 2500 m a.s.l. are evaluated by in situ measurements at this height at Sierra Nevada Station. The differences between GRASP and in situ measurements are similar for the different schemes, with differences below 30 % for both volume concentration and scattering coefficient. In general, for the ... |
format |
Article in Journal/Newspaper |
author |
Benavent Oltra, José Antonio Román, Roberto Casquero Vera, Juan Andrés Pérez Ramírez, Daniel Lyamani, Hassan Ortiz Amezcua, Pablo Bedoya Velásquez, Andrés Esteban Arruda Moreira, Gregori de Barreto Velasco, África Lopatin, Anton Fuertes Marrón, David Herrera, Milagros Torres, Benjamín Dubovik, Oleg Guerrero-Rascado, Juan Luis Goloub, Philippe Olmo Reyes, Francisco José Alados Arboledas, Lucas |
author_facet |
Benavent Oltra, José Antonio Román, Roberto Casquero Vera, Juan Andrés Pérez Ramírez, Daniel Lyamani, Hassan Ortiz Amezcua, Pablo Bedoya Velásquez, Andrés Esteban Arruda Moreira, Gregori de Barreto Velasco, África Lopatin, Anton Fuertes Marrón, David Herrera, Milagros Torres, Benjamín Dubovik, Oleg Guerrero-Rascado, Juan Luis Goloub, Philippe Olmo Reyes, Francisco José Alados Arboledas, Lucas |
author_sort |
Benavent Oltra, José Antonio |
title |
Different strategies to retrieve aerosol properties at night-time with the GRASP algorithm |
title_short |
Different strategies to retrieve aerosol properties at night-time with the GRASP algorithm |
title_full |
Different strategies to retrieve aerosol properties at night-time with the GRASP algorithm |
title_fullStr |
Different strategies to retrieve aerosol properties at night-time with the GRASP algorithm |
title_full_unstemmed |
Different strategies to retrieve aerosol properties at night-time with the GRASP algorithm |
title_sort |
different strategies to retrieve aerosol properties at night-time with the grasp algorithm |
publisher |
European Geosciences Union |
publishDate |
2019 |
url |
https://hdl.handle.net/20.500.11765/11682 |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_relation |
https://dx.doi.org/10.5194/acp-19-14149-2019 info:eu-repo/grantAgreement/EC/H2020/654109 Atmospheric Chemistry and Physics. 2019, 19(22), p. 14149–14171 1680-7316 1680-7324 http://hdl.handle.net/20.500.11765/11682 |
op_rights |
Licencia CC: Reconocimiento CC BY info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/20.500.11765/1168210.5194/acp-19-14149-2019 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
19 |
container_issue |
22 |
container_start_page |
14149 |
op_container_end_page |
14171 |
_version_ |
1802645637894766592 |