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Article: Moisture variability across China and Mongolia: 1951-2005

TitleMoisture variability across China and Mongolia: 1951-2005
Authors
Issue Date2009
PublisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00382/index.htm
Citation
Climate Dynamics, 2009, v. 32 n. 7-8, p. 1173-1186 How to Cite?
AbstractMoisture variability across China and Mongolia (hereafter, CM) during 1951-2005 was investigated using the recently developed monthly Palmer Drought Severity Index (PDSI) dataset. In total there are 206 PDSI grid points across CM, based on a 2.5° × 2.5° gridding system. For CM as a whole a significant decreasing trend in mean moisture availability was observed during 1951-2005, but with strong decadal (17.1-year) and interannual (5.0-year, 3.2-year, 2.4-2.8 year) variations. The areas affected by moderate and severe moisture deficit over CM have increased significantly since the mid-1950s. In contrast, there is a significant decreasing trend for areas affected by moderate wetness since the mid-1950s, and no significant trend was found for the areas affected by severe wetness. Ten moisture-related spatial patterns were objectively defined for CM using rotated Empirical Orthogonal Function (REOF) analysis. These patterns are related to distinct geographical areas and are associated with distinct temporal variations. Four of these patterns, in Northeast China (NE), North China (NC), Central China (CC), and East China (EC), generally demonstrate a significant decreasing trend in moisture availability. Two patterns located in western areas of Northwest China (NW) and the Tibetan Plateau (TP) show a significant moisture increase, while four patterns in Mongolia (MN), far western China (FW), South China (SC), and Southwest China (SW) do not have significant moisture trends during 1951-2005. Based on REOF results we propose that CM should be divided into ten coherent moisture divisions. Moisture variations within each division are generally coherent, but may show either similar or contrasting covariability with adjacent divisions. © Springer-Verlag 2008.
Persistent Identifierhttp://hdl.handle.net/10722/180566
ISSN
2015 Impact Factor: 4.708
2015 SCImago Journal Rankings: 3.623
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, Jen_US
dc.contributor.authorCook, ERen_US
dc.contributor.authorD'arrigo, Ren_US
dc.contributor.authorChen, Fen_US
dc.contributor.authorGou, Xen_US
dc.date.accessioned2013-01-28T01:39:53Z-
dc.date.available2013-01-28T01:39:53Z-
dc.date.issued2009en_US
dc.identifier.citationClimate Dynamics, 2009, v. 32 n. 7-8, p. 1173-1186en_US
dc.identifier.issn0930-7575en_US
dc.identifier.urihttp://hdl.handle.net/10722/180566-
dc.description.abstractMoisture variability across China and Mongolia (hereafter, CM) during 1951-2005 was investigated using the recently developed monthly Palmer Drought Severity Index (PDSI) dataset. In total there are 206 PDSI grid points across CM, based on a 2.5° × 2.5° gridding system. For CM as a whole a significant decreasing trend in mean moisture availability was observed during 1951-2005, but with strong decadal (17.1-year) and interannual (5.0-year, 3.2-year, 2.4-2.8 year) variations. The areas affected by moderate and severe moisture deficit over CM have increased significantly since the mid-1950s. In contrast, there is a significant decreasing trend for areas affected by moderate wetness since the mid-1950s, and no significant trend was found for the areas affected by severe wetness. Ten moisture-related spatial patterns were objectively defined for CM using rotated Empirical Orthogonal Function (REOF) analysis. These patterns are related to distinct geographical areas and are associated with distinct temporal variations. Four of these patterns, in Northeast China (NE), North China (NC), Central China (CC), and East China (EC), generally demonstrate a significant decreasing trend in moisture availability. Two patterns located in western areas of Northwest China (NW) and the Tibetan Plateau (TP) show a significant moisture increase, while four patterns in Mongolia (MN), far western China (FW), South China (SC), and Southwest China (SW) do not have significant moisture trends during 1951-2005. Based on REOF results we propose that CM should be divided into ten coherent moisture divisions. Moisture variations within each division are generally coherent, but may show either similar or contrasting covariability with adjacent divisions. © Springer-Verlag 2008.en_US
dc.languageengen_US
dc.publisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00382/index.htmen_US
dc.relation.ispartofClimate Dynamicsen_US
dc.titleMoisture variability across China and Mongolia: 1951-2005en_US
dc.typeArticleen_US
dc.identifier.emailLi, J: jinbao@hku.hken_US
dc.identifier.authorityLi, J=rp01699en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1007/s00382-008-0436-0en_US
dc.identifier.scopuseid_2-s2.0-67349134549en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-67349134549&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume32en_US
dc.identifier.issue7-8en_US
dc.identifier.spage1173en_US
dc.identifier.epage1186en_US
dc.identifier.isiWOS:000265382500017-
dc.publisher.placeGermanyen_US
dc.identifier.scopusauthoridLi, J=35272482700en_US
dc.identifier.scopusauthoridCook, ER=7202259586en_US
dc.identifier.scopusauthoridD'arrigo, R=7003697159en_US
dc.identifier.scopusauthoridChen, F=7404907075en_US
dc.identifier.scopusauthoridGou, X=7003498424en_US

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