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: | http://repositorio.ipen.br/handle/123456789/30828 https://doi.org/10.5194/acp-19-14149-2019 |
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ftipen:oai:repositorio.ipen.br:123456789/30828 2023-11-12T03:59:52+01:00 Different strategies to retrieve aerosol properties at night-time with the GRASP algorithm BENAVENT-OLTRA, JOSE A. ROMAN, ROBERTO CASQUERO-VERA, JUAN A. PEREZ-RAMIREZ, DANIEL LYAMANI, HASSAN ORTIZ-AMEZCUA, PABLO BEDOYA-VELASQUEZ, ANDRES E. MOREIRA, GREGORI de A. BARRETO, AFRICA LOPATIN, ANTON FUERTES, DAVID HERRERA, MILAGROS TORRES, BENJAMIN DUBOVIK, OLEG GUERRERO-RASCADO, JUAN L. GOLOUB, PHILIPPE OLMO-REYES, FRANCISCO J. ALADOS-ARBOLEDAS, LUCAS I 2019 14149-14171 http://repositorio.ipen.br/handle/123456789/30828 https://doi.org/10.5194/acp-19-14149-2019 unknown Atmospheric Chemistry and Physics 1680-7316 http://repositorio.ipen.br/handle/123456789/30828 22 19 doi:10.5194/acp-19-14149-2019 88.732 96.00 openAccess algorithms aerosol monitoring surface properties dusts optical properties optical radar deserts aerosol wastes raman effect Artigo de peri??dico 2019 ftipen https://doi.org/10.5194/acp-19-14149-2019 2023-10-30T16:29:43Z 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 nighttime 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 2500ma.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 Repositório Digital do IPEN (Instituto de Pesquisas Energéticas e Nucleares) Atmospheric Chemistry and Physics 19 22 14149 14171 |
institution |
Open Polar |
collection |
Repositório Digital do IPEN (Instituto de Pesquisas Energéticas e Nucleares) |
op_collection_id |
ftipen |
language |
unknown |
topic |
algorithms aerosol monitoring surface properties dusts optical properties optical radar deserts aerosol wastes raman effect |
spellingShingle |
algorithms aerosol monitoring surface properties dusts optical properties optical radar deserts aerosol wastes raman effect BENAVENT-OLTRA, JOSE A. ROMAN, ROBERTO CASQUERO-VERA, JUAN A. PEREZ-RAMIREZ, DANIEL LYAMANI, HASSAN ORTIZ-AMEZCUA, PABLO BEDOYA-VELASQUEZ, ANDRES E. MOREIRA, GREGORI de A. BARRETO, AFRICA LOPATIN, ANTON FUERTES, DAVID HERRERA, MILAGROS TORRES, BENJAMIN DUBOVIK, OLEG GUERRERO-RASCADO, JUAN L. GOLOUB, PHILIPPE OLMO-REYES, FRANCISCO J. ALADOS-ARBOLEDAS, LUCAS Different strategies to retrieve aerosol properties at night-time with the GRASP algorithm |
topic_facet |
algorithms aerosol monitoring surface properties dusts optical properties optical radar deserts aerosol wastes raman effect |
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 nighttime 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 2500ma.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, JOSE A. ROMAN, ROBERTO CASQUERO-VERA, JUAN A. PEREZ-RAMIREZ, DANIEL LYAMANI, HASSAN ORTIZ-AMEZCUA, PABLO BEDOYA-VELASQUEZ, ANDRES E. MOREIRA, GREGORI de A. BARRETO, AFRICA LOPATIN, ANTON FUERTES, DAVID HERRERA, MILAGROS TORRES, BENJAMIN DUBOVIK, OLEG GUERRERO-RASCADO, JUAN L. GOLOUB, PHILIPPE OLMO-REYES, FRANCISCO J. ALADOS-ARBOLEDAS, LUCAS |
author_facet |
BENAVENT-OLTRA, JOSE A. ROMAN, ROBERTO CASQUERO-VERA, JUAN A. PEREZ-RAMIREZ, DANIEL LYAMANI, HASSAN ORTIZ-AMEZCUA, PABLO BEDOYA-VELASQUEZ, ANDRES E. MOREIRA, GREGORI de A. BARRETO, AFRICA LOPATIN, ANTON FUERTES, DAVID HERRERA, MILAGROS TORRES, BENJAMIN DUBOVIK, OLEG GUERRERO-RASCADO, JUAN L. GOLOUB, PHILIPPE OLMO-REYES, FRANCISCO J. ALADOS-ARBOLEDAS, LUCAS |
author_sort |
BENAVENT-OLTRA, JOSE A. |
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 |
publishDate |
2019 |
url |
http://repositorio.ipen.br/handle/123456789/30828 https://doi.org/10.5194/acp-19-14149-2019 |
op_coverage |
I |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_relation |
Atmospheric Chemistry and Physics 1680-7316 http://repositorio.ipen.br/handle/123456789/30828 22 19 doi:10.5194/acp-19-14149-2019 88.732 96.00 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.5194/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_ |
1782339082198712320 |