نتایج جستجو برای: tm and etm
تعداد نتایج: 16830294 فیلتر نتایج به سال:
Ice masses and snow of Hunza River Basin (HRB) are an important primary source fresh water lifeline for downstream inhabitants. Changing climatic conditions seriously put impact on these available ice masses. These glaciers may affect population by glacial lake outburst floods (GLOF) surge events due to variation. So, monitoring is important. This research delivers approach dynamics major the B...
digital change detection using remotely sensed data for monitoring green space destruction in tabriz
being very dynamic, natural and artificial land features are changing somewhat rapidly in over lifetime. it is important that such changes be inventoried accurately so that the physical and human processes at work can be more fully understood. change detection is a technique used in remote sensing to determine the changes in a particular object of study between two or more time periods. this re...
today, information technology and computers are indispensable tools of any profession and translation technologies have become an indispensable part of translator’s workstation. with the increasing demands for high productivity and speed as well as consistency and with the rise of new demands for translation and localization, it is necessary for translators to be familiar with market demands an...
Land use often changes considerably due to shifts in political and societal systems. The border zone between Austria and Hungary (the former Iron Curtain zone) is an outstanding example for these socio-politically driven changes of land use patterns. This paper discusses a methodology to assess temporal changes, which occurred in three 2500 ha test sites near Lake Fertő between 1985 (t0) and 20...
Monitoring grain protein content in large areas by remote sensing is very important for guiding graded harvest, and facilitates grain purchasing for processing enterprises. Wheat grain protein content (GPC) at maturity was measured and multitemporal Landsat TM and Landsat ETM + images at key stages in 2003, 2004 growth stages were acquired in this study. GPC was estimated with multi-temporal re...
This paper addresses some key aspects regarding integrated use of radar, optical and GPS data over Vrancea seismic area in Romania in order to assess active tectonic of this region, since it has allowed the detection of active movements mainly coincident with active faults and/or with areas of seimicity concentration. Field studies should be oriented to the locations where seismic anomalies hav...
Impervious surface area is a key indicator of environmental quality. Satellite remote sensing of impervious surface has focused on subpixel analysis via various forms of statistical estimation, subpixel classification, and spectral mixture analysis, using medium resolution Landsat TM or ETM+ data. Maps of impervious surface area from these studies provide useful inputs to planning and managemen...
Earthquake prediction has two potentially compatible but distinctly different objectives: (a) phenomena that provide information about the future earthquake hazard useful to those who live in earthquake-prone regions and (b) phenomena causally related to the physical processes governing failure on a fault that will improve our understanding of those processes. For seismic hazard analysis in Vra...
* Corresponding author. Abstract – The semi-arid Sahel zone of Africa has suffered several periods of severe drought since about 1950. We have analyzed AVHRR Normalized Difference Vegetation Index (NDVI) over the Sahel for the period 1982-2002, and found extensive areas of increasing NDVI. To verify these changes we have analyzed Landsat TM and ETM+ scenes from 1984-1986 and 1999-2001 for areas...
Guangxi Province is one of the regions more serious desertification. This paper using ENVI image processing system, according to remote sensing image interpretation target mark and image spectral characteristics, found remote sensing interpretation model of the background information of forest, shrub and grass, agricultural land, surface water, towns, roads from TM and ETM data from 1988 to 200...
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