Universität zu Köln

Huang, Mei, Wang, Zhaosheng, Wang, Shaoqiang, Gu, Fengxue, Gong, He, Hao, Man and Shao, Yaping ORCID: 0000-0002-2041-5479 (2019). Global vegetation productivity responses to the West Pacific Warm Pool. Sci. Total Environ., 655. S. 641 - 652. AMSTERDAM: ELSEVIER SCIENCE BV. ISSN 1879-1026

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Abstract

Sea surface temperatures (SSTs) strongly influence atmospheric circulation and the Earth's climate, which in turn significantly affects vegetation productivity. Most of the previous studies on the subject have focused on links between the El Nino-Southern Oscillation (ENSO) and vegetation productivity, but few studies have addressed the effects of West Pacific Warm Pool (WPWP) on that although the early stages of the ENSO phenomenon may first develop there. In this paper, we use the mean SST values in the WPWP to construct a climate index, known as the WPWP index (WPI), and study the impacts of the WPWP on global vegetation productivity. We provide evidence for a robust link among the alternating warm and cool WPI pattern, terrestrial vegetation productivity and carbon balance. The analysis is based on both satellite observations and model simulations. The results of this study show that the warm and cool WPWP phases have inverse effects on land surface temperature and precipitation. A warm (cool) WPWP is associated with a warmer (cooler) climate on global land surfaces as well as a drier (wetter) climate in southern hemisphere, and hence enhances (suppresses) vegetation productivity in the latitudes of approximately 10-70 degrees N and suppresses (enhances) vegetation growth in the latitudes of approximately 10-30 degrees S. The underlying mechanism is also discussed. The WPI serves as a meaningful climate index for studying the ocean-vegetation teleconnections. (C) 2018 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Huang, Mei UNSPECIFIED UNSPECIFIED UNSPECIFIED Wang, Zhaosheng UNSPECIFIED UNSPECIFIED UNSPECIFIED Wang, Shaoqiang UNSPECIFIED UNSPECIFIED UNSPECIFIED Gu, Fengxue UNSPECIFIED UNSPECIFIED UNSPECIFIED Gong, He UNSPECIFIED UNSPECIFIED UNSPECIFIED Hao, Man UNSPECIFIED UNSPECIFIED UNSPECIFIED Shao, Yaping UNSPECIFIED orcid.org/0000-0002-2041-5479 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-154007
DOI:	10.1016/j.scitotenv.2018.11.170
Journal or Publication Title:	Sci. Total Environ.
Volume:	655
Page Range:	S. 641 - 652
Date:	2019
Publisher:	ELSEVIER SCIENCE BV
Place of Publication:	AMSTERDAM
ISSN:	1879-1026
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Geosciences > Institute for Geophysics and Meteorology
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SEA-SURFACE TEMPERATURE; NORTH-ATLANTIC OSCILLATION; NET PRIMARY PRODUCTION; EARTH SYSTEM MODEL; EL-NINO; INTERANNUAL VARIABILITY; CLIMATE INDEXES; TELECONNECTIONS; PATTERNS; DROUGHT Multiple languages Environmental Sciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/15400