Studies of the indian summer monsoon with a coarse-mesh general circulation model, part 1

✍ Scribed by Druyan, Leonard M.

• Publisher: Wiley (John Wiley & Sons)
• Year: 1982
• Weight: 763 KB
• Volume: 2
• Category: Article
• ISSN: 2314-6214
• DOI: 10.1002/joc.3370020203

✦ Synopsis

Abstract

A coarse‐mesh (8° latitude × 10° longitude), global domain climate model is shown to produce useful simulations of the sea‐level pressure and the precipitation distribution over south Asia during spring and early summer. Although the computations produce excessively fast development of the monsoon trough, the trend of increasing rainfall over the Indian subcontinent finds expression in the simulations. The model precipitation increases seasonally too early over southern India but the pattern by July correctly depicts a maximum south of the Tibetan plateau.

Four pairs of simulations during the model onset month tested the sensitivity of the onset to small arbitary differences in atmospheric stale. The results suggest that the timing of Indian precipitation may not be predictable from consideration of antecedent measurable atmospheric parameters.