The sensitivity of the African- Asian monsoonal climate to orbital parameter changes for 9000 years B.P. in a low-resolution general circulation model.

J. E. Kutzbach, B. L. Otto-Bliesner

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279 Scopus citations

Abstract

The earth's orbital parameters, precession, obliquity and eccentricity, produce solar radiation differences (compared to present) of ca.7% at the solstices 9000 years before present (B.P.) : more radiation in June-July-August, less in December-January-February. When this amplified seasonal cycle of solar radiation is used to drive a low-resolution general circulation model, an intensified monsoon circulation is simulated for Northern Hemisphere summer. Certain features of the simulated monsoon climate from this orbital-parameter sensitivity experiment agree with the paleoclimatic evidence. -from Authors

Original languageEnglish
Pages (from-to)1177-1188
Number of pages12
JournalJournal of the Atmospheric Sciences
Volume39
Issue number6
DOIs
StatePublished - 1982

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