Delayed impact of the North Atlantic Oscillation on biosphere productivity in Asia

This study examines the relationship between the North Atlantic Oscillation (NAO) and vegetation productivity in Asia inferred from both provincial crop yields data in China and satellite-derived Normalized Difference Vegetation Index data. Our finding suggests that vegetation productivity in northe...

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Bibliographic Details
Published in:Geophysical Research Letters
Main Authors: Wang, Guiling, You, Liangzhi, You, Liangzhi;
Format: Article in Journal/Newspaper
Language:English
Published: American Geophysical Union (AGU) 2004
Subjects:
CHINA
EAST ASIA
ASIA
Ecology
Crops
yield
Climate
plant ecology
Isi
North Atlantic
North Atlantic oscillation
Online Access:https://doi.org/10.1029/2004GL019766
http://ebrary.ifpri.org/cdm/ref/collection/p15738coll5/id/1763
Description
Summary:This study examines the relationship between the North Atlantic Oscillation (NAO) and vegetation productivity in Asia inferred from both provincial crop yields data in China and satellite-derived Normalized Difference Vegetation Index data. Our finding suggests that vegetation productivity in northern Asia during the main growing season correlates significantly to NAO, with a surprising long delay of 1.5 years. Correlation at shorter time lags, which was the focus of previous studies, is weak and not significant between the NAO index and vegetation activities in Asia. This suggests the existence of a so-far unrecognized mechanism that carries the NAO signal for multiple years. The lagged vegetation response also provides the potential for NAO to serve as a predictor for crop yields in China. IFPRI3; ISI; GRP38 EPTD PR

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