Jun LIU, Shao-qing LIANG, Yan-rong LI, Rong-rong QIN, Tao-ran ZHANG, Qiang YANG, Ling-tong DU. Evaluation and Modifying of Multispectral Drought Severity Index[J]. Spectroscopy and Spectral Analysis, 2020, 40(11): 3522
- Spectroscopy and Spectral Analysis
- Vol. 40, Issue 11, 3522 (2020)
Fig. 1. The site and DEM of Shanxi province
Fig. 2. Average yearly NDVI of Shanxi province from 2001 to 2014
(a): MODIS NDVI; (b): AVHRR NDVI
(a): MODIS NDVI; (b): AVHRR NDVI
Fig. 3. Average monthly SPEI (a), DSIMODIS (b) and DSIAVHRR (c) in Shanxi province from 2001 to 2014
Fig. 4. Correlation coefficients among DSIMODIS, DSIAVHRR and SPEI
(a): SPEI and DSIMODIS; (b): SPEI and DSIAVHRR; (c): DSIMODIS and DSIAVHRR
(a): SPEI and DSIMODIS; (b): SPEI and DSIAVHRR; (c): DSIMODIS and DSIAVHRR
Fig. 5. Time frequency of drought under D1~D4 gradesin Shanxi Province from 2001 to 2014
(a): SPEI; (b): DSIMODIS; (c): DSIMM
(a): SPEI; (b): DSIMODIS; (c): DSIMM
Fig. 6. Spatial rate of SPEI, DSIMODIS and DSIMM under D1~D4 (a, b, c, d) grades
Fig. 7. Drought information of four seasons in Shanxi province from 2001 to 2014 year
Fig. 8. Typical drought monitoring in summer of 2001 (a) and 2002 (b) based on DSIMM
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Table 1. Data sets used for research
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Table 2. Criteria drought grading of DSI
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Table 3. Modification schemes based on time frequency of DSI
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