Possible Roles of Atlantic Circulations on the Weakening Indian Monsoon Rainfall - ENSO Relationship

Journal of Climate, Vol. 14, pp. 2376-2380, June 2001 Since the 1970s, the inverse relationship between the Indian monsoon rainfall and the El Nin˜o–Southern Oscillation (ENSO) has weakened considerably. The cause for this breakdown is shown to be most likely the strengthening and poleward shift of...

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Bibliographic Details
Main Authors: Chang, C.-P., Harr, Patrick, Ju, Jianhua
Other Authors: Meteorology
Format: Article in Journal/Newspaper
Language:unknown
Published: 2001
Subjects:
Indian
North Atlantic
Online Access:https://hdl.handle.net/10945/46734
Description
Summary:Journal of Climate, Vol. 14, pp. 2376-2380, June 2001 Since the 1970s, the inverse relationship between the Indian monsoon rainfall and the El Nin˜o–Southern Oscillation (ENSO) has weakened considerably. The cause for this breakdown is shown to be most likely the strengthening and poleward shift of the jet stream over the North Atlantic. These changes have led to the recent development of a significant correlation between wintertime western European surface air temperatures and the ensuing monsoon rainfall. This western Europe winter signal extended eastward over most of northern Eurasia and remained evident in spring, such that the effect of the resulting meridional temperature contrast was able to disrupt the influence of ENSO on the monsoon.

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