IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2017  > Vol14 No.11
An improved temperature vegetation dryness index (iTVDI) and its applicability to drought monitoring
YANG Ruo-wen; WANG Hai; HU Jin-ming; CAO Jie; YANG Yu
Corresponding AuthorCAO Jie
2017-11
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume14Issue:11Pages:2284-2294
Subtype期刊论文
AbstractUsing Moderate Resolution Imaging Spectroradiometer (MODIS) data from the dry season during 2010–2012 over the whole Yunnan Province, an improved temperature vegetation dryness index (iTVDI), in which a parabolic dry-edge equation replaces the traditional linear dry-edge equation, was developed, to reveal the regional drought regime in the dry season. After calculating the correlation coefficient, root-mean-square error, and standard deviation between the iTVDI and observed topsoil moisture at 10 and 20 cm for seven sites, the effectiveness of the new index in depicting topsoil moisture conditions was verified. The drought area indicated by iTVDI mapping was then compared with the drought-affected area reported by the local government. The results indicated that the iTVDI can monitor drought more accurately than the traditional TVDI during the dry season in Yunnan Province. Using iTVDI facilitates drought warning and irrigation scheduling, and the expectation is that this new index can be broadly applied in other areas.
KeywordImproved Temperature Vegetation Dryness Index (Itvdi) Drought Monitoring Linear Dry-edge Equation Parabolic Dry-edge Equation Soil Moisture
DOIhttps://doi.org/10.1007/s11629-016-4262-2
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/19195
CollectionJournal of Mountain Science_Journal of Mountain Science-2017_Vol14 No.11
Recommended Citation
GB/T 7714
YANG Ruo-wen,WANG Hai,HU Jin-ming,et al. An improved temperature vegetation dryness index (iTVDI) and its applicability to drought monitoring[J]. Journal of Mountain Science,2017,14(11):2284-2294.
APA YANG Ruo-wen,WANG Hai,HU Jin-ming,CAO Jie,&YANG Yu.(2017).An improved temperature vegetation dryness index (iTVDI) and its applicability to drought monitoring.Journal of Mountain Science,14(11),2284-2294.
MLA YANG Ruo-wen,et al."An improved temperature vegetation dryness index (iTVDI) and its applicability to drought monitoring".Journal of Mountain Science 14.11(2017):2284-2294.
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