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Article: Using MODIS EVI to detect vegetation damage caused by the 2008 ice and snow storms in south China

TitleUsing MODIS EVI to detect vegetation damage caused by the 2008 ice and snow storms in south China
Authors
Issue Date2010
PublisherAmerican Geophysical Union.
Citation
Journal Of Geophysical Research G: Biogeosciences, 2010, v. 115 n. 4 How to Cite?
AbstractThis study develops a new method for detecting areas with severe vegetation damage caused by a serious ice and snow storm event that occurred in southern China over the period of 10 January to 2 February 2008. The new method adopts one of the Moderate Resolution Imaging Spectroradiometer (MODIS) MOD13A1 products, the enhanced vegetation index (EVI). Using a series of 16 day EVI maps at the 500 m spatial resolution in the 2008 growing season, the vegetation damage due to the event could be observed at a great number of patches, most of which are located outside of the regions with a flat topography. From a comparison of the MODIS Leaf Area Index (LAI), the Land Surface Temperature (LST) products, and the Landsat images obtained before and after the event, the severe vegetation damage is substantiated by a decreasing LAI, an increasing LST, and the "browning" of green vegetation in these patches. The analysis of topographic features discloses that the locations with the severe vegetation damage are mainly on slopes with easterly, southerly, and southeasterly aspects and in the moderate elevation region of between 500 and 700 m. During the event period, most of the patches that exhibited vegetation damage had a minimum temperature slightly above 0°C, experienced a minimum relative humidity of more than 75%, and accumulated a precipitation depth of more than 130 mm. Copyright 2010 by the American Geophysical Union.
Persistent Identifierhttp://hdl.handle.net/10722/124613
ISSN
2015 Impact Factor: 3.318
2015 SCImago Journal Rankings: 2.310
ISI Accession Number ID
Funding AgencyGrant Number
Hong Kong RGC GRFHKU 711008E
University of Hong KongHKU 200911159102
Funding Information:

This research was supported by the Hong Kong RGC GRF project (HKU 711008E) and the Seed Funding Programme for Basic Research in the University of Hong Kong (HKU 200911159102). The authors are grateful for the valuable comments and suggestions from the Editor, Dennis Baldocchi, the Associate Editor, and two anonymous reviewers.

References
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DC FieldValueLanguage
dc.contributor.authorChen, Jen_HK
dc.contributor.authorSun, Len_HK
dc.date.accessioned2010-10-31T10:44:13Z-
dc.date.available2010-10-31T10:44:13Z-
dc.date.issued2010en_HK
dc.identifier.citationJournal Of Geophysical Research G: Biogeosciences, 2010, v. 115 n. 4en_HK
dc.identifier.issn0148-0227en_HK
dc.identifier.urihttp://hdl.handle.net/10722/124613-
dc.description.abstractThis study develops a new method for detecting areas with severe vegetation damage caused by a serious ice and snow storm event that occurred in southern China over the period of 10 January to 2 February 2008. The new method adopts one of the Moderate Resolution Imaging Spectroradiometer (MODIS) MOD13A1 products, the enhanced vegetation index (EVI). Using a series of 16 day EVI maps at the 500 m spatial resolution in the 2008 growing season, the vegetation damage due to the event could be observed at a great number of patches, most of which are located outside of the regions with a flat topography. From a comparison of the MODIS Leaf Area Index (LAI), the Land Surface Temperature (LST) products, and the Landsat images obtained before and after the event, the severe vegetation damage is substantiated by a decreasing LAI, an increasing LST, and the "browning" of green vegetation in these patches. The analysis of topographic features discloses that the locations with the severe vegetation damage are mainly on slopes with easterly, southerly, and southeasterly aspects and in the moderate elevation region of between 500 and 700 m. During the event period, most of the patches that exhibited vegetation damage had a minimum temperature slightly above 0°C, experienced a minimum relative humidity of more than 75%, and accumulated a precipitation depth of more than 130 mm. Copyright 2010 by the American Geophysical Union.en_HK
dc.languageengen_HK
dc.publisherAmerican Geophysical Union.-
dc.relation.ispartofJournal of Geophysical Research G: Biogeosciencesen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsJournal of Geophysical Research. Copyright © American Geophysical Union.-
dc.rightsAn edited version of this paper was published by AGU. Copyright (2010) American Geophysical Union.-
dc.titleUsing MODIS EVI to detect vegetation damage caused by the 2008 ice and snow storms in south Chinaen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0148-0227&volume=115, article no. G00H04&spage=&epage=&date=2010&atitle=Using+MODIS+EVI+to+detect+vegetation+damage+caused+by+the+2008+ice+and+snow+storms+in+South+Chinaen_HK
dc.identifier.emailChen, J:jichen@hkucc.hku.hken_HK
dc.identifier.authorityChen, J=rp00098en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1029/2009JG001246en_HK
dc.identifier.scopuseid_2-s2.0-78149301634en_HK
dc.identifier.hkuros179545en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-78149301634&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume115en_HK
dc.identifier.issue4en_HK
dc.identifier.eissn2169-8961-
dc.identifier.isiWOS:000283752500001-
dc.publisher.placeUnited Statesen_HK
dc.relation.projectExperimental and Numerical Studies of the Hydrological Features of Flash Floods in Hong Kong-
dc.identifier.scopusauthoridChen, J=16443980300en_HK
dc.identifier.scopusauthoridSun, L=36160779100en_HK

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