Sensitivity of Asian and African climate to variations in seasonal insolation, glacial ice cover, sea surface temperature and Asian orography

Journal Article · Tue Apr 20 00:00:00 EDT 1993 · Journal of Geophysical Research; (United States)

DOI:https://doi.org/10.1029/92JD02924· OSTI ID:6338706

DeMenocal, P B ^[1]; Rind, D ^[2]

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1. Columbia Univ., Palisades, NY (United States)
2. Institute for Space Studies, New York, NY (United States)

The authors are interested in the general question of how low and high latitude regions interact on a climatic scale. Here they present results for modeled climatic influences in Asia and Africa, due to boundary condition changes in surrounding regions. The factors varied were the amount of solar insolation, the extent of glacial ice cover in high latitude areas, the north Atlantic sea surface temperatures, and the height of the Asian orography elevations. Results of using the GISS general circulation model, with these different imposed boundary conditions are then observed for their impact on the seasonal climate of the Asian and African monsoons. These results are then looked at in light of paleoclimatic evidence to see if these influences might be a major factor in driving the climate changes in Asia and Africa.

• OSTI ID: 6338706
• Journal Information: Journal of Geophysical Research; (United States), Vol. 98:D4; ISSN 0148-0227
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
58 GEOSCIENCES
AFRICA
PALEOCLIMATOLOGY
ASIA
AMBIENT TEMPERATURE
BOUNDARY CONDITIONS
GENERAL CIRCULATION MODELS
GLACIERS
HEIGHT
ICE
INSOLATION
MONSOONS
MOUNTAINS
SENSITIVITY
SURFACE WATERS
VARIATIONS
DIMENSIONS
DISASTERS
MATHEMATICAL MODELS
PALEONTOLOGY
STORMS
540110*
580000 - Geosciences