Semelhante a MONITORING VEGETATION WATER CONTENT BY USING OPTICAL VEGETATION INDEX AND MICROWAVE VEGETATION INDEX FIELD EXPERIMENTS AND APPLICATIONS.ppt
IRJET- Rainfall Simulation using ANN based Generealized Feed Forward and MLR ...IRJET Journal
Semelhante a MONITORING VEGETATION WATER CONTENT BY USING OPTICAL VEGETATION INDEX AND MICROWAVE VEGETATION INDEX FIELD EXPERIMENTS AND APPLICATIONS.ppt (20)
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MONITORING VEGETATION WATER CONTENT BY USING OPTICAL VEGETATION INDEX AND MICROWAVE VEGETATION INDEX FIELD EXPERIMENTS AND APPLICATIONS.ppt
1. Monitoring Vegetation Water Content by Using Optical Vegetation Index and Microwave Vegetation Index: Field Experiment and Application Hui Lu ( Tsinghua University, China ) Toshio Koike & Hiroyuki Tsutsui ( The University of Tokyo ) Hedeyuki Fujii ( JAXA )
10. Observed Results VWC ~ NDVI NDVI shows a poor correlation to the VWC, with an R-square less than 0.2. It is not good to estimate VWC from NDVI observation!
11. Observed Results VWC ~ NDWI NDWI has a good correlation to VWC, while band 5 has bigger R value VWC information maybe can be estimated by NDWI 5, for vwc in [0,4]
12. Observed Results VWC ~ MWI VWC = linear regression function of MVI High R for X-C band
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15. Results: VWC from MVI-based method A3 H7 MVI(10,6) MVI (18,10) High R for X-C band