نتایج جستجو برای: landsat 5 and 8
تعداد نتایج: 17095448 فیلتر نتایج به سال:
A comparison of topographic correction methods is conducted for Landsat-5 TM, Landsat-7 ETM+, and SPOT-5 imagery from different geographic areas and seasons. Three successful and known methods are compared: the semi-empirical C correction, the Gamma correction depending on the incidence and exitance angles, and a modified Minnaert approach. In the majority of cases the modified Minnaert approac...
Landsat satellite images (Landsat-5 for the period of 1990–2010 and Landsat-8 year 2020) were used spatiotemporal analysis dynamics main habitats Kozachelaherska arena (Nyzhniodniprovsky sands, Kherson region, Ukraine). The algorithm minimum distance automatic k-mean clustering was classification images. Habitats classified according to EUNIS principles. revealed a considerable decrease in summ...
WFV (Wide Field of View) cameras on-board Gaofen-1 satellite (gaofen means high resolution) provide unparalleled global observations with both high spatial and high temporal resolutions. However, the accuracy of the radiometric calibration remains unknown. Using an improved cross calibration method, the WFV cameras were re-calibrated with well-calibrated Landsat-8 OLI (Operational Land Imager) ...
Land Surface Temperature (LST) is one of the key inputs for Soil-Vegetation-Atmosphere transfer modeling in terrestrial ecosystems. In the frame of BIOSPEC (Linking spectral information at different spatial scales with biophysical parameters of Mediterranean vegetation in the context of global change) and FLUXPEC (Monitoring changes in water and carbon fluxes from remote and proximal sensing in...
Initiated in 1972, the Landsat program has provided a continuous record of earth observation for 35 years. The assemblage of Landsat spatial, spectral, and temporal resolutions, over a reasonably sized image extent, results in imagery that can be processed to represent land cover over large areas with an amount of spatial detail that is absolutely unique and indispensable for monitoring, manage...
a simple, rapid and low-cost scanner spectroscopy method for the glucose determination by utilizing glucose oxidase and cdte/tga quantum dots as chromoionophore has been described. the detection was based on the combination of the glucose enzymatic reaction and the quenching effect of h2o2 on the cdte quantum dots (qds) photoluminescence.in this study glucose was determined by utilizing glucose...
Understanding the changes in gross primary production (GPP), which is the total carbon fixation by terrestrial ecosystems through vegetation photosynthesis, due to land use conversion in a tourism city is important for carbon cycle studies. Satellite data from Landsat 5, Landsat 7 and Landsat 8 and meteorological data are used to calculate annual GPP for 1995, 2003 and 2014, respectively, using...
Hydroelectric energy generates more than 50% of all renewable electricity in the world. The Amazon is home to a large part these ventures, promoted as strategy independence order reduce greenhouse gas emissions countries region. However, hydroelectric plants lead changes land cover, fragmentation, degradation, and loss tropical forests. This article analyzes spatial pattern alterations cover mu...
Long time series glacier ice velocity reflects the local climate changes and can be used to estimate mass balance (MB) changes, which is a critical parameter for understanding of glacier-climate interactions prediction sea level rise. However, due difficulty in image matching caused by poor-quality historical satellite images, there was insufficient data before 1999. Here, we proposed multiple-...
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