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Anthropogenic and Volcanic Contributions to the Decadal Variations of Aerosols in the Upper Troposphere and Lower Stratosphere

Authors :
Chin, Mian
Diehl, Thomas
Bian, Huisheng
Aquila, Valentina
Colarco, Peter R
Tan, Qian
Burrows, John P
Krotov, Nickolay A
Vernier, Jean P
Lu, Zifeng
Streets, David
Pumphrey, Hugh
Read, William G
Publication Year :
2014
Publisher :
United States: NASA Center for Aerospace Information (CASI), 2014.

Abstract

We investigated the anthropogenic and volcanic contributions to sulfate aerosol in the stratosphere through modeling and analysis of satellite data. We use a global model GOCART to simulate SO2 and sulfate aerosol in the period of 2000 to 2010, during which numerous volcanic eruptions occurred although nothing like the magnitudes of El Chichon or Pinatubo. We compared the model results with the column SO2 data from OMI and stratospheric SO2 data from MLS instrument on Aura satellite and the aerosol vertical profiles from the SCIAMACHY instrument on Envisat and the CALIOP instrument on CALIPSO satellites. Finally, we assessed the relative contributions of volcanic aerosols vs. anthropogenic aerosols to the observed decadal stratospheric aerosol trends.

Details

Language :
English
Database :
NASA Technical Reports
Notes :
NNG11HP16A, , NNL11AA00B, , NNX10AT36A
Publication Type :
Report
Accession number :
edsnas.20150000360
Document Type :
Report