Variations in droughts over China: 1951-2003
The Palmer Drought Severity Index (PDSI) was calculated by using monthly air temperature and precipitation in China during the period 1951 to 2003. For the country as a whole, there are no long‐term upward or downward trends in the percentage areas of droughts (defined as PDSI < −1.0). However, s...
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| Veröffentlicht in: | Geophysical research letters 2005-02, Vol.32 (4), p.L04707.1-n/a |
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| container_issue | 4 |
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| container_title | Geophysical research letters |
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| creator | Zou, Xukai Zhai, Panmao Zhang, Qiang |
| description | The Palmer Drought Severity Index (PDSI) was calculated by using monthly air temperature and precipitation in China during the period 1951 to 2003. For the country as a whole, there are no long‐term upward or downward trends in the percentage areas of droughts (defined as PDSI < −1.0). However, significant increases of drought areas are found in North China. Most northern China (except western Northwest China) has experienced severe and prolonged dry periods since the late 1990s, when in some of the areas the extreme drought situations were unprecedented during the period of study. Since these regions are relatively dry areas, frequent drought stress in recent decades has become more serious. |
| doi_str_mv | 10.1029/2004GL021853 |
| format | Article |
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Res. Lett</addtitle><description>The Palmer Drought Severity Index (PDSI) was calculated by using monthly air temperature and precipitation in China during the period 1951 to 2003. For the country as a whole, there are no long‐term upward or downward trends in the percentage areas of droughts (defined as PDSI < −1.0). However, significant increases of drought areas are found in North China. Most northern China (except western Northwest China) has experienced severe and prolonged dry periods since the late 1990s, when in some of the areas the extreme drought situations were unprecedented during the period of study. Since these regions are relatively dry areas, frequent drought stress in recent decades has become more serious.</description><subject>China</subject><subject>Droughts</subject><subject>Drying</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Geophysics</subject><subject>Mathematical analysis</subject><subject>Northwest</subject><subject>Precipitation</subject><subject>Trends</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNqFkMtOwzAQRS0EEqWw4wOyQWLRwPhds0MVBFAFFZSH2FjGcaghTYrdAv17UrUCVrCaWZx7RnMR2sVwgIGoQwLAsj4Q3OV0DbWwYiztAsh11AJQzU6k2ERbMb4AAAWKW6hzZ4I3U19XMfFVkod69jyaxqR-dyHpjXxljhKsOE4bN91GG4Upo9tZzTa6PT0Z9s7S_lV23jvup5bz5ozKicSMgqTcFIaZgkKXMQIqf5Isz5WwYIV1hhVCYVLk0mHqRA5AckOI5bSN9pfeSajfZi5O9dhH68rSVK6eRY2FxLx5iNL_UU6UAsn5wtpZojbUMQZX6EnwYxPmGoNe9Kd_99fgeyuzidaURTCV9fEnIwTnkuKGI0vuw5du_qdTZ9d9rEiXNaF0GfJx6j6_Qya8aiGp5Pr-MtM3g4dhbyAf9QX9ApULiME</recordid><startdate>200502</startdate><enddate>200502</enddate><creator>Zou, Xukai</creator><creator>Zhai, Panmao</creator><creator>Zhang, Qiang</creator><general>Blackwell Publishing Ltd</general><general>American Geophysical Union</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>200502</creationdate><title>Variations in droughts over China: 1951-2003</title><author>Zou, Xukai ; Zhai, Panmao ; Zhang, Qiang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5594-9d271430735afa4af30844209db74dd96c0c6cea4f6912fd7e13e6d002da22c53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>China</topic><topic>Droughts</topic><topic>Drying</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>Geophysics</topic><topic>Mathematical analysis</topic><topic>Northwest</topic><topic>Precipitation</topic><topic>Trends</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zou, Xukai</creatorcontrib><creatorcontrib>Zhai, Panmao</creatorcontrib><creatorcontrib>Zhang, Qiang</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zou, Xukai</au><au>Zhai, Panmao</au><au>Zhang, Qiang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Variations in droughts over China: 1951-2003</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2005-02</date><risdate>2005</risdate><volume>32</volume><issue>4</issue><spage>L04707.1</spage><epage>n/a</epage><pages>L04707.1-n/a</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><abstract>The Palmer Drought Severity Index (PDSI) was calculated by using monthly air temperature and precipitation in China during the period 1951 to 2003. For the country as a whole, there are no long‐term upward or downward trends in the percentage areas of droughts (defined as PDSI < −1.0). However, significant increases of drought areas are found in North China. Most northern China (except western Northwest China) has experienced severe and prolonged dry periods since the late 1990s, when in some of the areas the extreme drought situations were unprecedented during the period of study. 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| ispartof | Geophysical research letters, 2005-02, Vol.32 (4), p.L04707.1-n/a |
| issn | 0094-8276 1944-8007 |
| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Wiley Free Content; Wiley-Blackwell AGU Digital Library |
| subjects | China Droughts Drying Earth sciences Earth, ocean, space Exact sciences and technology Geophysics Mathematical analysis Northwest Precipitation Trends |
| title | Variations in droughts over China: 1951-2003 |
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