African dust source regions for observed dust outbreaks over the Subtropical Eastern North Atlantic region, above 25°N
High mineral dust-laden air mass potential source regions affecting the Marine Boundary Layer (MBL) of the Subtropical Eastern North Atlantic Region above 25°N (SENAR), directly or by means of gravitational settlement, were objectively identified. We introduced a new hybrid Lagrangian-Eulerian recep...
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Online Access: | http://hdl.handle.net/10261/71026 https://doi.org/10.1016/j.jaridenv.2011.11.013 |
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ftcsic:oai:digital.csic.es:10261/71026 2024-02-11T10:06:16+01:00 African dust source regions for observed dust outbreaks over the Subtropical Eastern North Atlantic region, above 25°N Alonso-Pérez, Silvia Cuevas, Emilio Querol, Xavier Guerra, Juan Carlos Pérez, Carlos 2012 http://hdl.handle.net/10261/71026 https://doi.org/10.1016/j.jaridenv.2011.11.013 en eng Academic Press doi:10.1016/j.jaridenv.2011.11.013 issn: 0140-1963 e-issn: 1095-922X Journal of Arid Environments 78: 100-109 (2012) http://hdl.handle.net/10261/71026 none artículo http://purl.org/coar/resource_type/c_6501 2012 ftcsic https://doi.org/10.1016/j.jaridenv.2011.11.013 2024-01-16T09:47:09Z High mineral dust-laden air mass potential source regions affecting the Marine Boundary Layer (MBL) of the Subtropical Eastern North Atlantic Region above 25°N (SENAR), directly or by means of gravitational settlement, were objectively identified. We introduced a new hybrid Lagrangian-Eulerian receptor model, in which air mass residence time probability maps in the geographical domain latitude = [5°N, 60°N], longitude = [70°W, 30°E] were combined with TOMS-AI data (TAPI Index), and with simulated Total Suspended Particles (TSP) with the BSC/DREAM model (SDPI Index). Both approaches show a good agreement. For dust gravitational settlement episodes within the MBL, the dust sources are located in southernmost latitudes compared to those associated with lower air mass transport. A seasonal variability in potential dust sources is found with both approaches, TAPI and SDPI. In winter, most dust sources are located within the Sahara in an area bounded by latitude = [18°N, 35°N], longitude = [15°W, 15°E]. In summer, a high dust-laden air mass reservoir above the Atlantic Ocean has been found during episodes for low altitudes, and dust source regions in the Sahara have been identified for middle and upper altitudes. The Bodelé depression was found to have a minor impact on dust outbreaks affecting the SENAR. © 2011 Elsevier Ltd. This study was supported by the G.D. of Environmental Quality and Assessment from the Spanish Ministry of Environment, Rural and Marine Affairs. Peer Reviewed Article in Journal/Newspaper North Atlantic Digital.CSIC (Spanish National Research Council) Journal of Arid Environments 78 100 109 |
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Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
description |
High mineral dust-laden air mass potential source regions affecting the Marine Boundary Layer (MBL) of the Subtropical Eastern North Atlantic Region above 25°N (SENAR), directly or by means of gravitational settlement, were objectively identified. We introduced a new hybrid Lagrangian-Eulerian receptor model, in which air mass residence time probability maps in the geographical domain latitude = [5°N, 60°N], longitude = [70°W, 30°E] were combined with TOMS-AI data (TAPI Index), and with simulated Total Suspended Particles (TSP) with the BSC/DREAM model (SDPI Index). Both approaches show a good agreement. For dust gravitational settlement episodes within the MBL, the dust sources are located in southernmost latitudes compared to those associated with lower air mass transport. A seasonal variability in potential dust sources is found with both approaches, TAPI and SDPI. In winter, most dust sources are located within the Sahara in an area bounded by latitude = [18°N, 35°N], longitude = [15°W, 15°E]. In summer, a high dust-laden air mass reservoir above the Atlantic Ocean has been found during episodes for low altitudes, and dust source regions in the Sahara have been identified for middle and upper altitudes. The Bodelé depression was found to have a minor impact on dust outbreaks affecting the SENAR. © 2011 Elsevier Ltd. This study was supported by the G.D. of Environmental Quality and Assessment from the Spanish Ministry of Environment, Rural and Marine Affairs. Peer Reviewed |
format |
Article in Journal/Newspaper |
author |
Alonso-Pérez, Silvia Cuevas, Emilio Querol, Xavier Guerra, Juan Carlos Pérez, Carlos |
spellingShingle |
Alonso-Pérez, Silvia Cuevas, Emilio Querol, Xavier Guerra, Juan Carlos Pérez, Carlos African dust source regions for observed dust outbreaks over the Subtropical Eastern North Atlantic region, above 25°N |
author_facet |
Alonso-Pérez, Silvia Cuevas, Emilio Querol, Xavier Guerra, Juan Carlos Pérez, Carlos |
author_sort |
Alonso-Pérez, Silvia |
title |
African dust source regions for observed dust outbreaks over the Subtropical Eastern North Atlantic region, above 25°N |
title_short |
African dust source regions for observed dust outbreaks over the Subtropical Eastern North Atlantic region, above 25°N |
title_full |
African dust source regions for observed dust outbreaks over the Subtropical Eastern North Atlantic region, above 25°N |
title_fullStr |
African dust source regions for observed dust outbreaks over the Subtropical Eastern North Atlantic region, above 25°N |
title_full_unstemmed |
African dust source regions for observed dust outbreaks over the Subtropical Eastern North Atlantic region, above 25°N |
title_sort |
african dust source regions for observed dust outbreaks over the subtropical eastern north atlantic region, above 25°n |
publisher |
Academic Press |
publishDate |
2012 |
url |
http://hdl.handle.net/10261/71026 https://doi.org/10.1016/j.jaridenv.2011.11.013 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
doi:10.1016/j.jaridenv.2011.11.013 issn: 0140-1963 e-issn: 1095-922X Journal of Arid Environments 78: 100-109 (2012) http://hdl.handle.net/10261/71026 |
op_rights |
none |
op_doi |
https://doi.org/10.1016/j.jaridenv.2011.11.013 |
container_title |
Journal of Arid Environments |
container_volume |
78 |
container_start_page |
100 |
op_container_end_page |
109 |
_version_ |
1790603883055153152 |