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[1]ZHOU Junli,XUE Huazhu,DONG Guotao,et al.Analysis on Drought Based on AMSR2 Microwave Vegetation Index and Surface Temperature[J].Research of Soil and Water Conservation,2018,25(06):377-382,389.

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Analysis on Drought Based on AMSR2 Microwave Vegetation Index and Surface Temperature

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 25 Number of periods: 2018 06 Page number: 377-382,389 Column: Public date: 2018-10-26

Title:: Analysis on Drought Based on AMSR2 Microwave Vegetation Index and Surface Temperature

Author(s):: ZHOU Junli^1,2, XUE Huazhu¹, DONG Guotao², FAN Dong¹, LIU Qixing¹, JIA Peipei¹; 1. School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China;
2. Key Laboratory of the Loess Plateau Soil Erosion and Erosion Water Loss Process and Control, Institute of Hydraulic Research, Yellow River Water Conservancy Commission, Ministry of Water Resources, Zhengzhou 450003, China

Keywords:: AMSR2 microwave; vegetation index; drought index; applicability

CLC:: P426.616;TP79

DOI:: -

Abstract:: Based on the advantages of microwave data all day long, all-weather, and not affected by cloud, AMSR2 microwave data from July 2012 to December 2016 in 10, 18, 36.5 GHz horizontal and vertical polarization brightness temperature data inversion of microwave penetration index MVI, microwave polarization difference index MPDI₁₈ and MPDI_36.5 were used to build microwave vegetation index, and microwave drought indexes (TMVDI, TMPVDI₁₈ and TMPVDI_36.5) with the optical surface temperature, and the optical drought index TVDI was compared to microwave vegetation index and microwave drought indexes. The applicability of microwave drought index in drought monitoring in the Yellow River basin was analyzed. The results showed that the microwave drought index change tendency was consistent with optical drought index; microwave drought index had the good applicability to drought monitoring in the Yellow River Basin; microwave drought index inversion was better than optical drought index in most areas; analysis on correlation between optical and microwave drought indexes and rainfall also showed that the correlation between microwave drought index and rainfall was overall better than the correlation between optical drought index and rainfall, good correlation between microwave drought index and rainfall was found in the southern area of the Yellow River Basin.

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