IGSNRR OpenIR
Drought monitoring in arid and semi-arid region based on multi-satellite datasets in northwest, China
Wei, Wei1; Zhang, Haoyan1; Zhou, Junju1; Zhou, Liang2,3; Xie, Binbin4; Li, Chuanhua1
2021-05-14
Source PublicationENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN0944-1344
Pages19
Corresponding AuthorZhang, Haoyan(zhanghy0945@outlook.com)
AbstractDrought is a complex natural disaster affected by multiple climate factors and underlying surface. In recent years, drought monitoring indices of remote sensing have been widely applied to monitor drought in a certain region or global. However, some remote sensing drought monitoring indices do not consider the drought-causing factors enough to reflect the comprehensive drought situation of a region fully. In this paper, a new remote sensing drought monitoring index, called Remote Sensing Drought Evaluation Index (RSDEI), was constructed by combining Vegetation Condition Index (VCI), Temperature Condition Index (TCI), Precipitation Condition Index (PCI), and Soil Moisture Condition Index (SMCI) using the spatial principal component analysis (SPCA) method. The reasonableness of RSDEI was test and verified using Net Primary Productivity (NPP), Standardized Precipitation Evapotranspiration Index (SPEI), and unit area crop yield. The RSDEI was also applied to the drought condition monitoring of the northwest arid and semi-arid region from 2001 to 2019.The result demonstrated that the results showed that the RSDEI had a high correlation coefficient with SPEI-12 (R=0.85, p<0.01). It is concluded that the correlation coefficient between RSDEI and NPP is 0.74 at 95% confidence level, which indicates that RSDEI and NPP have a strong correlation. Then, the correlation between RSDEI and crop yield per unit area is 0.89. The results of RSDEI showed that the drought in northwest China started in May and lasted in September from 2001 to 2019. The lowest value of RSDEI appeared in May, which inflected the significant difference of drought level in different month in northwest China. The result of CV (coefficient of variation) showed that the drought variation in the study area had a stable low fluctuation condition as a whole, in the northwest and northeast of study area, which indicated that the changes of drought were different in the past 19 years. The Hurst exponent analysis showed that the area with the positive evolution of Hurst index (0.5
KeywordDrought monitoring Remote sensing datasets SPCA Remote Sensing Drought Evaluation Index Northwest China
DOI10.1007/s11356-021-14122-y
WOS KeywordAGRICULTURAL DROUGHT ; METEOROLOGICAL DROUGHT ; TIBETAN PLATEAU ; UNITED-STATES ; PRECIPITATION ; INDEX ; PATTERNS ; TRMM ; TEMPERATURE ; UPLIFT
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41861040] ; National Natural Science Foundation of China[41761047] ; Natural Science Foundation of Gansu Province[1506RJZA129]
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Gansu Province
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000650195600001
PublisherSPRINGER HEIDELBERG
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/162926
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhang, Haoyan
Affiliation1.Northwest Normal Univ, Coll Geog & Environm Sci, 967 Anning East Rd, Lanzhou 730070, Gansu, Peoples R China
2.Lanzhou Jiaotong Univ, Fac Geomat, Lanzhou 730070, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
4.Lanzhou City Univ, Sch Urban Econ & Tourism Culture, Lanzhou 730070, Gansu, Peoples R China
Recommended Citation
GB/T 7714
Wei, Wei,Zhang, Haoyan,Zhou, Junju,et al. Drought monitoring in arid and semi-arid region based on multi-satellite datasets in northwest, China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2021:19.
APA Wei, Wei,Zhang, Haoyan,Zhou, Junju,Zhou, Liang,Xie, Binbin,&Li, Chuanhua.(2021).Drought monitoring in arid and semi-arid region based on multi-satellite datasets in northwest, China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,19.
MLA Wei, Wei,et al."Drought monitoring in arid and semi-arid region based on multi-satellite datasets in northwest, China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2021):19.
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