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El Niño's impact on California precipitation: seasonality, regionality, and El Niño intensity

Bor-Ting Jong; Mingfang Ting; Richard Seager

Title:
El Niño's impact on California precipitation: seasonality, regionality, and El Niño intensity
Author(s):
Jong, Bor-Ting
Ting, Mingfang
Seager, Richard
Date:
Type:
Articles
Department(s):
Earth and Environmental Sciences
Lamont-Doherty Earth Observatory
Volume:
11
Persistent URL:
Book/Journal Title:
Environmental Research Letters
Geographic Area:
Pacific Ocean--El Niño Current
California
Publisher:
IOP Publishing
Abstract:
California has experienced severe drought in recent years posing great challenges to agricultural production, water resources, and land management. El Niño, as the prime source of seasonal to interannual climate predictability, offers the potential of amelioration of drought in California. Here El Niño's impacts on California winter precipitation are examined, focusing on variations by season, region, and the strength of El Niño using observational data for the period 1901–2010. The El Niño influence on California precipitation strengthens from early to late winter and is stronger in the south than the north. Eight of ten moderate-to-strong El Niños in the late winter put southern California in the wettest tercile and none of these ten events put northern California in the driest tercile. The early to late winter strengthening of the El Niño impact on precipitation occurs even as El Niño weakens and is associated with a strengthening and eastward extending tropical deep convection anomaly allowed by the late winter warming of the climatological mean sea surface temperature over the tropical eastern Pacific.
Subject(s):
Winter
Precipitation (Meteorology)
Meteorology
Publisher DOI:
https://doi.org/10.1088/1748-9326/11/5/054021
Item views
77
Metadata:
text | xml
Suggested Citation:
Bor-Ting Jong, Mingfang Ting, Richard Seager, , El Niño's impact on California precipitation: seasonality, regionality, and El Niño intensity, Columbia University Academic Commons, .

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