China-Pakistan Economic Corridor Zone I Versions ZH2
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A dataset of monthly temperature vegetation dryness index along the China–Pakistan Economic Corridor from 2000 – 2017
Dataset URL >>
: 2018 - 08 - 01
: 2018 - 09 - 25
: 2018 - 09 - 25
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Abstract & Keywords
Abstract: Drought disasters happen frequently along the China–Pakistan Economic Corridor (CPEC), which harm the development and safety of the countries along it. It is therefore important to conduct drought monitoring along CPEC. While soil water content (SWC) is a fundamental indicator of drought prediction, temperature vegetation dryness index (TVDI) can predict drought by inverting surface soil water content. Based on a combination of MODIS normalized differential vegetation index (NDVI) and land surface temperature (LST) products and SRTM DEM data, the study used NDVI-LST spatial characteristics to extract the spatial edge of dryness and wetness along CPEC from 2000 – 2017, through which to obtain the monthly TVDI. The study area is from 41°25'24.49"N to 23°45'24.49"N and from 60°53'57.97"E to 79°52'27.97"E. The data are in GeoTiff format, with a spatial resolution of 1 km. We then compared the data with the precipitation and soil water content observed by meteorological stations. Results showed that TVDI had a significantly negative correlation with SPI and SWC (p<0.001). The dataset can be used to support drought monitoring and prediction along CPEC.
Keywords: China–Pakistan Economic Corridor; temperature vegetation dryness index; land surface temperature; normalized differential vegetation index
Dataset Profile
TitleA dataset of monthly temperature vegetation dryness index along the China–Pakistan Economic Corridor from 2000 – 2017
Data corresponding authorZhang Yaonan (yaonan@lzb.ac.cn)
Data authorsFeng Keting, Zhang Yaonan, Tian Deyu, Kang Jianfang
Time range2000 – 2017
Geographical scopeThe area is from 41°25′24.49″N to 23°45′24.49″N and from 60°53′57.97″E to 79°52′27.97″E.
Spatial resolution1 km
Data volume632 MB
Data format*.tif
Data service systemhttp://www.sciencedb.cn/dataSet/handle/640
http://www.crensed.ac.cn/portal/metadata/34994230-7c93-4d39-8cc3-950f1db2dd7e
Sources of fundingNational R&D Infrastructure and Facility Development Program of China “National Special Environment and Function of Observation and Research Station Shared Service Platform” (Y719H71006);
Information Program of the Chinese Academy of Sciences “Construction and Application of ‘Technology Cloud’ in Cold and Arid Regions Environment Evolution” (XXH13506).
Dataset compositionThe dataset consists of 216 files of monthly temperature vegetation dryness index data in total. The files are named in the format of TVDI.AYYYYDDD.1_km_month.tif.
Article and author information
Feng Keting
主要承担工作:方案设计、数据处理与分析。
fengkt@lzb.ac.cn
Zhang Yaonan
主要承担工作:整体方案指导。
Tian Deyu
主要承担工作:数据预处理。
Kang Jianfang
主要承担工作:MODIS数据收集。
Publication records
Released: Sept. 25, 2018 ( VersionsZH2
References
中国科学数据
csdata