This paper presents a new drought assessment method by spatially and temporally integrating temperQ2 ature vegetation dryness index (TVDI) with regional water stress index (RWSI) based on a synergistic approach. With the aid of LANDSAT TM/ETM data, we were able to retrieve the land-use and land-cover (LULC), vegetation indices (VIs), and land surface temperature (LST), leading to the derivation...

The SAVI (the Strut Adjusted Volume Implant) device is one of the most novel devices used in Accelerated Partial Breast Irradiation (APBI). Various dosimetric parameters, as well as doses to adjacent critical structures, have been evaluated in 121 patients in this single institution 5-year retrospective study, using dose volume histogram (DVHs): Coverage Index (CI), cavity and planning target v...

the purpose of this research was to investigate the relationship between vegetation cover and soil characteristics in order to determine the most important soil factors which affect on quantitative variations and types of vegetation cover in the study area. the study area is located in west of tehran province and southeast of hashtgerd, next to najm-abad village. after field studies, the index ...

The objective of this study was to analyze the sensitivity of radar signals in the X-band in irrigated grassland conditions. The backscattered radar signals were analyzed according to soil moisture and vegetation parameters using linear regression models. A time series of radar (TerraSAR-X and COSMO-SkyMed) and optical (SPOT and LANDSAT) images was acquired at a high temporal frequency in 2013 ...

The Normalization Difference Vegetation Index (NDVI), for many years, was widely used in remote sensing the detection of vegetation land cover. This index uses red channel radiances (i.e., 0.66 μm reflectance) and near-IR 0.86 reflectance). In heavy chlorophyll absorption area, is located, while high reflectance plateau canopies, Near-IR situated. Senses channels (Red & Near- IR) read varia...

In this research, a back-propagation neural network was used to retrieve and map the surface soil moisture in Oklahoma (97d35'W, 36d15'N) from Synthetic Aperture Radar data acquired by RADARSAT-1 satellite. In addition to SAR backscattering, different vegetation-related information (vegetation optical depth and Normalized Difference Vegetation Index) have been added as additional inputs to the ...

identification of the best vegetation indices (vis) for use in quantitative analyzes of vegetation is one of the important issues for ecologists. the objective of this study was sensitivity evaluation of vegetation indices to a stand volume for identification of the best vegetation index (vi) in stand volume estimation using a statistical sensitivity method. also, another objective of this stud...

Crop yield models using different VIs (vegetation index) from remote sensing data show the various precision, but each of them can provide useful information related with yield. So it is very significant how to integrate the useful information of these models. In this study, a few of typical VIs, such as NDVI (Normalized Difference Vegetation Index), SR (Simple Ratio index), TCARI/OSAVI (Trans-...