Nature And Properties Of Soils

Changes in monsoon rainfall are caused by human-produced aerosols slowing the tropical atmospheric circulation. 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.

Anthropogenic aerosols and the weakening of the South Asian summer monsoon

Annual review of earth and planetary sciences v. 7, Editor: F. A. Donath; Associate Editors: F. G. Stehli, and G. W. Wetherill, Annual Reviews, Inc., 4139 El Camino Way, Palo Alto, California, 94036, 1979, 517p., 17 (U.S.), 17.50 elsewhere

Correction of tree ring stable carbon isotope chronologies for changes in the carbon dioxide content of the atmosphere , Geochimica et Cosmochimica Acta 73, 1539-1547

B.4a Field Book for describing and sampling soils

A monte carlo approach to quantifying uncertainty in c4 biomass estimates from paleosol organic matter and carbonates

Petrologic and geochemical investigation of camp dikes from the blue ridge and valley and ridge in central virginia

Reconstruction of early miocene paleoflora and paleoclimate of koru region (nyanza province, western kenya): implications for early hominoid evolution

Reduced Temperature Seasonality in the Eocene Arctic Compared to Modern Determined Using Stable Isotope Measurements (δ18O and δ13C) of Fossil Wood

Early pliocene paleosols of the baringo basin, kenya

William E. Lukens

Papers

A monte carlo approach to quantifying uncertainty in c4 biomass estimates from paleosol organic matter and carbonates

Petrologic and geochemical investigation of camp dikes from the blue ridge and valley and ridge in central virginia

Reconstruction of early miocene paleoflora and paleoclimate of koru region (nyanza province, western kenya): implications for early hominoid evolution

Reduced Temperature Seasonality in the Eocene Arctic Compared to Modern Determined Using Stable Isotope Measurements (δ18O and δ13C) of Fossil Wood

Early pliocene paleosols of the baringo basin, kenya