因此,总的来说NDMI是热环境研究的有效指标,与NDVI相比,NDMI与LST的负相关关系更强、更稳定,也更适宜于对LST的定量分析。 Abstract Through the comparative study of the correlations between the normalized difference vegetation index (NDVI), normalized difference moisture index (NDMI) and land surface ...
[Li B, Wang H M, Qin M Z, et al. 2017. Comparative study on the correlations between NDVI, NDMI and LST[J]. Prog- ress in Geography, 36(5): 585-596.] 李杭燕, 马明国, 谭俊磊. 2010. 时序 NDVI 数据集重建综合 方法研究[J]. 遥感技术与应用, 25(6): 891-896. [Li H Y, Ma...
In landscapes close to the climatic optimum of PCAB, the relationship between stem and leaf biomass was weak, and their correlations with climate were often inverse, with no significant effects of topography. Different climatic signals from NDVI and tree rings suggest that the response of canopy ...
fit_ndvi_lst=**regress**(ref_ndvi,ref_lst,const=b,correlation=r,yfit=lst_estimated);plot points picture p1=**plot**(ref_ndvi,ref_lst,xtitle='NDVI',ytitle='LST(K)',dimensions=[**600**,**400**],symbol=**1**,color='red',sym_size=**1.0**,linestyle=**6**,$ title='The Reg...
1.And on month,season,growing season and year time scales,correlation between climate factor images and NOAA/AVHRR NDVI data are computed.同时,综合分析了归一化差值植被指数(normalized differential vegetation index,NDVI)、降水、气温、区域潜在蒸散量、区域实际蒸散量的年际季节变化。 2.NDVI is an indic...
2007). The validity of vegetation and thermal-based drought indices relies on the assumption that precipitation directly impacts vegetation growth throughout the year, resulting in the strong correlations of VIs and LST with the precipitation amount; specifically, the precipitation is positively and ...
and there are even negative correlations between the VIs and the LAI. In order to deal with this phenomenon,ain Eq. (3) is limited to being greater than zero, and the data in the time series with higher values than the result of the first fitting are used for the second fitting. The...
The ED-SG verification for different spatiotemporal resolutions was implemented on Sentinel-NDVI and Landsat-NDVI time-series, demonstrating a qualitative evaluation of the reconstructed results. Lastly, the ED-SG was run using GEE, and correlation analyses between the original MOD09GQ-NDVI, average ...
(roi), description: 'sen_slope', scale: 1000, region: roi, maxPixels: 1e13, crs: 'EPSG:4326' }) var mannkendall = modis_time.select('NDVI') .reduce(ee.Reducer.kendallsCorrelation()); Map.addLayer(mannkendall.select('NDVI_tau').clip(roi),{palette:['red','black','green']},'...
A reasonable correlation was found between the satellite estimated Ts and air temperature Ta measured from ground weather stations over the study area especially when Uliveri et al (1994) algorithm was applied over the agricultural area with R2 reached 82% as well as 87% over the residential an...