Skip to Main Content
Book Chapter

Climatic change: Desert-forming processes

By
SHERWOOD B. IDSO
SHERWOOD B. IDSO
Search for other works by this author on:
Published:
January 01, 1981

Several different hypotheses exist in which atmospheric dust is identified as having a dominant role in desert-forming processes. The theory of Bryson and Baerreis for the Rajasthan Desert of northwest India—where increased atmospheric dust was postulated to be responsible for enhanced infrared radiative divergence of the upper air that accelerated cooling aloft and increased subsidence that suppressed convective precipitation and the release of monsoon moisture—is shown to be in harmony with current assessments of climatic effects of atmospheric dust. On the other hand, current ideas of dust effects tend to negate the more recent theory of Bryson concerning the Sahelian drouth, where global effects of both increased atmospheric dust and CO2 were hypothesized to be responsible for a southward shift of the Hadley-Rossby transition zone of descending air that also tended to reduce rainfall. Thus, correct knowledge of climatic effects of atmospheric dust appears essential to our understanding of desert-forming processes.

You do not currently have access to this article.
Don't already have an account? Register

Figures & Tables

Contents

GSA Special Papers

Desert Dust: Origin, Characteristics, and Effect on Man

Troy L. Péwé
Troy L. Péwé
Search for other works by this author on:
Geological Society of America
Volume
186
ISBN print:
9780813721866
Publication date:
January 01, 1981

References

Related

A comprehensive resource of eBooks for researchers in the Earth Sciences

This Feature Is Available To Subscribers Only

Sign In or Create an Account

This PDF is available to Subscribers Only

View Article Abstract & Purchase Options

For full access to this pdf, sign in to an existing account, or purchase an annual subscription.

Subscribe Now