Anthropogenic Aerosols and the Weakening of the South Asian Summer Monsoon. Bollasina, M. A., Ming, Y., & Ramaswamy, V. 334(6055):502–505. Paper doi abstract bibtex Observations show that South Asia underwent a widespread summertime drying during the second half of the 20th century, but it is unclear whether this trend was due to natural variations or human activities. We used a series of climate model experiments to investigate the South Asian monsoon response to natural and anthropogenic forcings. We find that the observed precipitation decrease can be attributed mainly to human-influenced aerosol emissions. The drying is a robust outcome of a slowdown of the tropical meridional overturning circulation, which compensates for the aerosol-induced energy imbalance between the Northern and Southern Hemispheres. These results provide compelling evidence of the prominent role of aerosols in shaping regional climate change over South Asia.
@article{bollasinaAnthropogenicAerosolsWeakening2011,
title = {Anthropogenic Aerosols and the Weakening of the {{South Asian}} Summer Monsoon},
author = {Bollasina, Massimo A. and Ming, Yi and Ramaswamy, V.},
date = {2011},
journaltitle = {Science},
volume = {334},
pages = {502--505},
issn = {1095-9203},
doi = {10.1126/science.1204994},
url = {https://doi.org/10.1126/science.1204994},
abstract = {Observations show that South Asia underwent a widespread summertime drying during the second half of the 20th century, but it is unclear whether this trend was due to natural variations or human activities. We used a series of climate model experiments to investigate the South Asian monsoon response to natural and anthropogenic forcings. We find that the observed precipitation decrease can be attributed mainly to human-influenced aerosol emissions. The drying is a robust outcome of a slowdown of the tropical meridional overturning circulation, which compensates for the aerosol-induced energy imbalance between the Northern and Southern Hemispheres. These results provide compelling evidence of the prominent role of aerosols in shaping regional climate change over South Asia.},
keywords = {*imported-from-citeulike-INRMM,~INRMM-MiD:c-14007169,aerosol,anthropogenic-impacts,climate-change,monsoon,precipitation,south-asia},
number = {6055}
}
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