A permanent Raman lidar station in the Amazon: description, characterization, and first results
A permanent UV Raman lidar station, designed to perform continuous measurements of aerosols and water vapor and aiming to study and monitor the atmosphere from weather to climatic time scales, became operational in the central Amazon in July 2011. the automated data acquisition and internet monitori...
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Online Access: | http://repositorio.unifesp.br/handle/11600/37195 https://doi.org/10.5194/amt-7-1745-2014 |
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ftunivfsaopaulo:oai:repositorio.unifesp.br:11600/37195 2023-10-09T21:44:13+02:00 A permanent Raman lidar station in the Amazon: description, characterization, and first results Barbosa, Henrique de Melo Jorge Barja, Boris Pauliquevis, Theotonio UNIFESP Gouveia, Diego Alves Artaxo, aulo Cirino, Glauber Guimarães Santos, Rosa Maria Nascimento dos Oliveira, Andre B. Universidade de São Paulo (USP) Inst Meteorol Cuba Universidade Federal de São Paulo (UNIFESP) Inst Nacl de Pesquisas da Amazonia Univ Estado Amazonas Inst Fed Educ Ciencia & Tecnol São Paulo 2014-01-01 1745-1762 application/pdf http://repositorio.unifesp.br/handle/11600/37195 https://doi.org/10.5194/amt-7-1745-2014 eng eng Copernicus Gesellschaft Mbh Atmospheric Measurement Techniques http://dx.doi.org/10.5194/amt-7-1745-2014 Atmospheric Measurement Techniques. Gottingen: Copernicus Gesellschaft Mbh, v. 7, n. 6, p. 1745-1762, 2014. 1867-1381 http://repositorio.unifesp.br/handle/11600/37195 WOS000339935900017.pdf doi:10.5194/amt-7-1745-2014 WOS:000339935900017 Acesso aberto Artigo 2014 ftunivfsaopaulo https://doi.org/10.5194/amt-7-1745-2014 2023-09-17T15:17:50Z A permanent UV Raman lidar station, designed to perform continuous measurements of aerosols and water vapor and aiming to study and monitor the atmosphere from weather to climatic time scales, became operational in the central Amazon in July 2011. the automated data acquisition and internet monitoring enabled extended hours of daily measurements when compared to a manually operated instrument. This paper gives a technical description of the system, presents its experimental characterization and the algorithms used for obtaining the aerosol optical properties and identifying the cloud layers. Data from one week of measurements during the dry season of 2011 were analyzed as a mean to assess the overall system capability and performance. Both Klett and Raman inversions were successfully applied. A comparison of the aerosol optical depth from the lidar and from a co-located Aerosol Robotic Network (AERONET) sun photometer showed a correlation coefficient of 0.86. By combining nighttime measurements of the aerosol lidar ratio (50-65 sr), back-trajectory calculations and fire spots observed from satellites, we showed that observed particles originated from biomass burning. Cirrus clouds were observed in 60% of our measurements. Most of the time they were distributed into three layers between 11.5 and 13.4 km a. g. l. the systematic and long-term measurements being made by this new scientific facility have the potential to significantly improve our understanding of the climatic implications of the anthropogenic changes in aerosol concentrations over the pristine Amazonia. Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Instituto Nacional de Ciencia e Tecnologia (INCT) - Mudancas Climaticas Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Univ São Paulo, Inst Fis, BR-05508090 São Paulo, Brazil Inst Meteorol Cuba, Ctr Meteorol Camaguey, Matanzas, Cuba UNIFESP, Dept Ciencias Exatas & Terra, Diadema, SP, Brazil Inst Nacl de Pesquisas da Amazonia, Manaus, AM, Brazil Univ ... Article in Journal/Newspaper Aerosol Robotic Network Universidade Federal de São Paulo (UNIFESP): Repositório Institucional Atmospheric Measurement Techniques 7 6 1745 1762 |
institution |
Open Polar |
collection |
Universidade Federal de São Paulo (UNIFESP): Repositório Institucional |
op_collection_id |
ftunivfsaopaulo |
language |
English |
description |
A permanent UV Raman lidar station, designed to perform continuous measurements of aerosols and water vapor and aiming to study and monitor the atmosphere from weather to climatic time scales, became operational in the central Amazon in July 2011. the automated data acquisition and internet monitoring enabled extended hours of daily measurements when compared to a manually operated instrument. This paper gives a technical description of the system, presents its experimental characterization and the algorithms used for obtaining the aerosol optical properties and identifying the cloud layers. Data from one week of measurements during the dry season of 2011 were analyzed as a mean to assess the overall system capability and performance. Both Klett and Raman inversions were successfully applied. A comparison of the aerosol optical depth from the lidar and from a co-located Aerosol Robotic Network (AERONET) sun photometer showed a correlation coefficient of 0.86. By combining nighttime measurements of the aerosol lidar ratio (50-65 sr), back-trajectory calculations and fire spots observed from satellites, we showed that observed particles originated from biomass burning. Cirrus clouds were observed in 60% of our measurements. Most of the time they were distributed into three layers between 11.5 and 13.4 km a. g. l. the systematic and long-term measurements being made by this new scientific facility have the potential to significantly improve our understanding of the climatic implications of the anthropogenic changes in aerosol concentrations over the pristine Amazonia. Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Instituto Nacional de Ciencia e Tecnologia (INCT) - Mudancas Climaticas Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Univ São Paulo, Inst Fis, BR-05508090 São Paulo, Brazil Inst Meteorol Cuba, Ctr Meteorol Camaguey, Matanzas, Cuba UNIFESP, Dept Ciencias Exatas & Terra, Diadema, SP, Brazil Inst Nacl de Pesquisas da Amazonia, Manaus, AM, Brazil Univ ... |
author2 |
Universidade de São Paulo (USP) Inst Meteorol Cuba Universidade Federal de São Paulo (UNIFESP) Inst Nacl de Pesquisas da Amazonia Univ Estado Amazonas Inst Fed Educ Ciencia & Tecnol São Paulo |
format |
Article in Journal/Newspaper |
author |
Barbosa, Henrique de Melo Jorge Barja, Boris Pauliquevis, Theotonio UNIFESP Gouveia, Diego Alves Artaxo, aulo Cirino, Glauber Guimarães Santos, Rosa Maria Nascimento dos Oliveira, Andre B. |
spellingShingle |
Barbosa, Henrique de Melo Jorge Barja, Boris Pauliquevis, Theotonio UNIFESP Gouveia, Diego Alves Artaxo, aulo Cirino, Glauber Guimarães Santos, Rosa Maria Nascimento dos Oliveira, Andre B. A permanent Raman lidar station in the Amazon: description, characterization, and first results |
author_facet |
Barbosa, Henrique de Melo Jorge Barja, Boris Pauliquevis, Theotonio UNIFESP Gouveia, Diego Alves Artaxo, aulo Cirino, Glauber Guimarães Santos, Rosa Maria Nascimento dos Oliveira, Andre B. |
author_sort |
Barbosa, Henrique de Melo Jorge |
title |
A permanent Raman lidar station in the Amazon: description, characterization, and first results |
title_short |
A permanent Raman lidar station in the Amazon: description, characterization, and first results |
title_full |
A permanent Raman lidar station in the Amazon: description, characterization, and first results |
title_fullStr |
A permanent Raman lidar station in the Amazon: description, characterization, and first results |
title_full_unstemmed |
A permanent Raman lidar station in the Amazon: description, characterization, and first results |
title_sort |
permanent raman lidar station in the amazon: description, characterization, and first results |
publisher |
Copernicus Gesellschaft Mbh |
publishDate |
2014 |
url |
http://repositorio.unifesp.br/handle/11600/37195 https://doi.org/10.5194/amt-7-1745-2014 |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_relation |
Atmospheric Measurement Techniques http://dx.doi.org/10.5194/amt-7-1745-2014 Atmospheric Measurement Techniques. Gottingen: Copernicus Gesellschaft Mbh, v. 7, n. 6, p. 1745-1762, 2014. 1867-1381 http://repositorio.unifesp.br/handle/11600/37195 WOS000339935900017.pdf doi:10.5194/amt-7-1745-2014 WOS:000339935900017 |
op_rights |
Acesso aberto |
op_doi |
https://doi.org/10.5194/amt-7-1745-2014 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
7 |
container_issue |
6 |
container_start_page |
1745 |
op_container_end_page |
1762 |
_version_ |
1779321656368431104 |