Aerosol characterization at the Saharan AERONET site Tamanrasset
More than 2 years of columnar atmospheric aerosol measurements (2006–2009) at the Tamanrasset site (22.79° N, 5.53° E, 1377 m a.s.l.), in the heart of the Sahara, are analysed. Aerosol Robotic Network (AERONET) level 2.0 data were used. The KCICLO (K is the name of a constant and ciclo means cycle i...
Published in: | Atmospheric Chemistry and Physics |
---|---|
Main Authors: | , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2014
|
Subjects: | |
Online Access: | https://doi.org/10.5194/acp-14-11753-2014 https://noa.gwlb.de/receive/cop_mods_00044720 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00044340/acp-14-11753-2014.pdf https://acp.copernicus.org/articles/14/11753/2014/acp-14-11753-2014.pdf |
id |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00044720 |
---|---|
record_format |
openpolar |
spelling |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00044720 2023-05-15T13:06:20+02:00 Aerosol characterization at the Saharan AERONET site Tamanrasset Guirado, C. Cuevas, E. Cachorro, V. E. Toledano, C. Alonso-Pérez, S. Bustos, J. J. Basart, S. Romero, P. M. Camino, C. Mimouni, M. Zeudmi, L. Goloub, P. Baldasano, J. M. de Frutos, A. M. 2014-11 electronic https://doi.org/10.5194/acp-14-11753-2014 https://noa.gwlb.de/receive/cop_mods_00044720 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00044340/acp-14-11753-2014.pdf https://acp.copernicus.org/articles/14/11753/2014/acp-14-11753-2014.pdf eng eng Copernicus Publications Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-14-11753-2014 https://noa.gwlb.de/receive/cop_mods_00044720 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00044340/acp-14-11753-2014.pdf https://acp.copernicus.org/articles/14/11753/2014/acp-14-11753-2014.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2014 ftnonlinearchiv https://doi.org/10.5194/acp-14-11753-2014 2022-02-08T22:39:54Z More than 2 years of columnar atmospheric aerosol measurements (2006–2009) at the Tamanrasset site (22.79° N, 5.53° E, 1377 m a.s.l.), in the heart of the Sahara, are analysed. Aerosol Robotic Network (AERONET) level 2.0 data were used. The KCICLO (K is the name of a constant and ciclo means cycle in Spanish) method was applied to a part of the level 1.5 data series to improve the quality of the results. The annual variability of aerosol optical depth (AOD) and Ångström exponent (AE) has been found to be strongly linked to the convective boundary layer (CBL) thermodynamic features. The dry-cool season (autumn and winter) is characterized by a shallow CBL and very low mean turbidity (AOD ~ 0.09 at 440 nm, AE ~ 0.62). The wet-hot season (spring and summer) is dominated by high turbidity of coarse dust particles (AE ~ 0.28, AOD ~ 0.39 at 440 nm) and a deep CBL. The aerosol-type characterization shows desert mineral dust as the prevailing aerosol. Both pure Saharan dust and very clear sky conditions are observed depending on the season. However, several case studies indicate an anthropogenic fine mode contribution from the industrial areas in Libya and Algeria. The concentration weighted trajectory (CWT) source apportionment method was used to identify potential sources of air masses arriving at Tamanrasset at several heights for each season. Microphysical and optical properties and precipitable water vapour were also investigated. Article in Journal/Newspaper Aerosol Robotic Network Niedersächsisches Online-Archiv NOA Atmospheric Chemistry and Physics 14 21 11753 11773 |
institution |
Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Guirado, C. Cuevas, E. Cachorro, V. E. Toledano, C. Alonso-Pérez, S. Bustos, J. J. Basart, S. Romero, P. M. Camino, C. Mimouni, M. Zeudmi, L. Goloub, P. Baldasano, J. M. de Frutos, A. M. Aerosol characterization at the Saharan AERONET site Tamanrasset |
topic_facet |
article Verlagsveröffentlichung |
description |
More than 2 years of columnar atmospheric aerosol measurements (2006–2009) at the Tamanrasset site (22.79° N, 5.53° E, 1377 m a.s.l.), in the heart of the Sahara, are analysed. Aerosol Robotic Network (AERONET) level 2.0 data were used. The KCICLO (K is the name of a constant and ciclo means cycle in Spanish) method was applied to a part of the level 1.5 data series to improve the quality of the results. The annual variability of aerosol optical depth (AOD) and Ångström exponent (AE) has been found to be strongly linked to the convective boundary layer (CBL) thermodynamic features. The dry-cool season (autumn and winter) is characterized by a shallow CBL and very low mean turbidity (AOD ~ 0.09 at 440 nm, AE ~ 0.62). The wet-hot season (spring and summer) is dominated by high turbidity of coarse dust particles (AE ~ 0.28, AOD ~ 0.39 at 440 nm) and a deep CBL. The aerosol-type characterization shows desert mineral dust as the prevailing aerosol. Both pure Saharan dust and very clear sky conditions are observed depending on the season. However, several case studies indicate an anthropogenic fine mode contribution from the industrial areas in Libya and Algeria. The concentration weighted trajectory (CWT) source apportionment method was used to identify potential sources of air masses arriving at Tamanrasset at several heights for each season. Microphysical and optical properties and precipitable water vapour were also investigated. |
format |
Article in Journal/Newspaper |
author |
Guirado, C. Cuevas, E. Cachorro, V. E. Toledano, C. Alonso-Pérez, S. Bustos, J. J. Basart, S. Romero, P. M. Camino, C. Mimouni, M. Zeudmi, L. Goloub, P. Baldasano, J. M. de Frutos, A. M. |
author_facet |
Guirado, C. Cuevas, E. Cachorro, V. E. Toledano, C. Alonso-Pérez, S. Bustos, J. J. Basart, S. Romero, P. M. Camino, C. Mimouni, M. Zeudmi, L. Goloub, P. Baldasano, J. M. de Frutos, A. M. |
author_sort |
Guirado, C. |
title |
Aerosol characterization at the Saharan AERONET site Tamanrasset |
title_short |
Aerosol characterization at the Saharan AERONET site Tamanrasset |
title_full |
Aerosol characterization at the Saharan AERONET site Tamanrasset |
title_fullStr |
Aerosol characterization at the Saharan AERONET site Tamanrasset |
title_full_unstemmed |
Aerosol characterization at the Saharan AERONET site Tamanrasset |
title_sort |
aerosol characterization at the saharan aeronet site tamanrasset |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://doi.org/10.5194/acp-14-11753-2014 https://noa.gwlb.de/receive/cop_mods_00044720 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00044340/acp-14-11753-2014.pdf https://acp.copernicus.org/articles/14/11753/2014/acp-14-11753-2014.pdf |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_relation |
Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-14-11753-2014 https://noa.gwlb.de/receive/cop_mods_00044720 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00044340/acp-14-11753-2014.pdf https://acp.copernicus.org/articles/14/11753/2014/acp-14-11753-2014.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/acp-14-11753-2014 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
14 |
container_issue |
21 |
container_start_page |
11753 |
op_container_end_page |
11773 |
_version_ |
1766001212658810880 |