Modeling a typical winter-time dust event over the Arabian Peninsula and the Red Sea

Handle URI:
http://hdl.handle.net/10754/334647
Title:
Modeling a typical winter-time dust event over the Arabian Peninsula and the Red Sea
Authors:
Kalenderski, S.; Stenchikov, Georgiy L. ( 0000-0001-9033-4925 ) ; Zhao, C.
Abstract:
We used WRF-Chem, a regional meteorological model coupled with an aerosol-chemistry component, to simulate various aspects of the dust phenomena over the Arabian Peninsula and Red Sea during a typical winter-time dust event that occurred in January 2009. The model predicted that the total amount of emitted dust was 18.3 Tg for the entire dust outburst period and that the two maximum daily rates were ?2.4 Tg day-1 and ?1.5 Tg day-1, corresponding to two periods with the highest aerosol optical depth that were well captured by ground-and satellite-based observations. The model predicted that the dust plume was thick, extensive, and mixed in a deep boundary layer at an altitude of 3-4 km. Its spatial distribution was modeled to be consistent with typical spatial patterns of dust emissions. We utilized MODIS-Aqua and Solar Village AERONET measurements of the aerosol optical depth (AOD) to evaluate the radiative impact of aerosols. Our results clearly indicated that the presence of dust particles in the atmosphere caused a significant reduction in the amount of solar radiation reaching the surface during the dust event. We also found that dust aerosols have significant impact on the energy and nutrient balances of the Red Sea. Our results showed that the simulated cooling under the dust plume reached 100 W m-2, which could have profound effects on both the sea surface temperature and circulation. Further analysis of dust generation and its spatial and temporal variability is extremely important for future projections and for better understanding of the climate and ecological history of the Red Sea.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Kalenderski S, Stenchikov G, Zhao C (2013) Modeling a typical winter-time dust event over the Arabian Peninsula and the Red Sea. Atmospheric Chemistry and Physics 13: 1999-2014. doi:10.5194/acp-13-1999-2013.
Publisher:
Copernicus GmbH
Journal:
Atmospheric Chemistry and Physics
Issue Date:
20-Feb-2013
DOI:
10.5194/acp-13-1999-2013
Type:
Article
ISSN:
16807316
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorKalenderski, S.en
dc.contributor.authorStenchikov, Georgiy L.en
dc.contributor.authorZhao, C.en
dc.date.accessioned2014-11-11T14:33:31Z-
dc.date.available2014-11-11T14:33:31Z-
dc.date.issued2013-02-20en
dc.identifier.citationKalenderski S, Stenchikov G, Zhao C (2013) Modeling a typical winter-time dust event over the Arabian Peninsula and the Red Sea. Atmospheric Chemistry and Physics 13: 1999-2014. doi:10.5194/acp-13-1999-2013.en
dc.identifier.issn16807316en
dc.identifier.doi10.5194/acp-13-1999-2013en
dc.identifier.urihttp://hdl.handle.net/10754/334647en
dc.description.abstractWe used WRF-Chem, a regional meteorological model coupled with an aerosol-chemistry component, to simulate various aspects of the dust phenomena over the Arabian Peninsula and Red Sea during a typical winter-time dust event that occurred in January 2009. The model predicted that the total amount of emitted dust was 18.3 Tg for the entire dust outburst period and that the two maximum daily rates were ?2.4 Tg day-1 and ?1.5 Tg day-1, corresponding to two periods with the highest aerosol optical depth that were well captured by ground-and satellite-based observations. The model predicted that the dust plume was thick, extensive, and mixed in a deep boundary layer at an altitude of 3-4 km. Its spatial distribution was modeled to be consistent with typical spatial patterns of dust emissions. We utilized MODIS-Aqua and Solar Village AERONET measurements of the aerosol optical depth (AOD) to evaluate the radiative impact of aerosols. Our results clearly indicated that the presence of dust particles in the atmosphere caused a significant reduction in the amount of solar radiation reaching the surface during the dust event. We also found that dust aerosols have significant impact on the energy and nutrient balances of the Red Sea. Our results showed that the simulated cooling under the dust plume reached 100 W m-2, which could have profound effects on both the sea surface temperature and circulation. Further analysis of dust generation and its spatial and temporal variability is extremely important for future projections and for better understanding of the climate and ecological history of the Red Sea.en
dc.language.isoenen
dc.publisherCopernicus GmbHen
dc.rightsThis work is distributed under the Creative Commons Attribution 3.0 License.en
dc.rightsArchived with thanks to Atmospheric Chemistry and Physicsen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectaerosolen
dc.subjectaerosol compositionen
dc.subjectdusten
dc.subjectground-based measurementen
dc.subjectmodelingen
dc.subjectMODISen
dc.subjectobservational methoden
dc.subjectoptical depthen
dc.subjectradiative forcingen
dc.subjectsatellite dataen
dc.subjectsea surface temperatureen
dc.subjectsolar radiationen
dc.subjectspatial dataen
dc.subjectspatial variationen
dc.subjecttemporal variationen
dc.subjectwinteren
dc.subjectArabian Peninsulaen
dc.subjectIndian Oceanen
dc.subjectRed Sea [Indian Ocean]en
dc.titleModeling a typical winter-time dust event over the Arabian Peninsula and the Red Seaen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalAtmospheric Chemistry and Physicsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionAtmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, United Statesen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorKalenderski, Stoitchko Dimitroven
kaust.authorStenchikov, Georgiy L.en
This item is licensed under a Creative Commons License
Creative Commons
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.