نتایج جستجو برای: red edge normalized difference vegetation index rendvi
تعداد نتایج: 1096411 فیلتر نتایج به سال:
Quantitative plant species ?-diversity of grasslands at multiple spatial and temporal scales is important for investigating the responses biodiversity to global change protecting under change. Potential (i.e., SRp, Shannonp, Simpsonp Pieloup: potential richness, Shannon index, Simpson index Pielou respectively) were quantified by climate data annual temperature, precipitation radiation) actual ...
In wildfire areas, earth observation data is used for the development of fire-severity maps or vegetation recovery to select post-fire measures erosion control and revegetation. Appropriate indices monitoring vary with type climate zone. This study aimed best using remote sensing classification methods temperate zone in southern Ecuador, as well analyze vegetation’s different fire severity clas...
Inundation is linked to water, carbon, and energy budgets at landscape to global scales. We describe a new remote-sensing technique for identifying inundated areas based on the properties of the glitter—the strong, angular signature reflection that is characteristic of surface water and uncharacteristic of other cover types. We discriminated three cover types—vegetation emergent above inundated...
Metre-resolution airborne multispectral images have been used to estimate crop biomass in rice (Orysa sativa L.). Images were acquired at four stages of crop development; mid-tillering, flowering, panicle initiation and immediately prior to harvest. The imaging system, flown in a light aircraft, comprised four CCD video cameras; recording in the infrared, red, green and blue wavebands. Normaliz...
Bursaphelenchus xylophilus, the pine wood nematode (PWN) which causes pine wilt disease, is currently a serious problem in East Asia, including in Japan, Korea, and China. This paper investigates the hyperspectral analysis of pine wilt disease to determine the optimal detection indices for measuring changes in the spectral reflectance characteristics and leaf reflectance in the Pinus thunbergii...
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