In order to complement present water quality monitoring of large lakes, we have attempted to make use of satellite imagery. In addition to ocean color sensors SeaWiFS and MODIS, lately MERIS images also became available. Here we analyze 18 almost cloud free full resolution atmospherically corrected MERIS images over the large European lakes Vättern, Vänern and Peipsi, where water type ranges fr...

It is a fact that Mediterranean Europe suffers severe wildfire events, as it occurred in summer 2003. The Valencia de Alcántara fire that took place near the border between Portugal and Spain, was one of the mentioned events. The present paper tries to evaluate how reliable are burnt area estimations made from medium resolution satellite images, processed and delivered in near real time. In ord...

A recent revision of the MODIS Land-Surface Temperature Algorithm Theoretical Basis Document (LST ATBD) was completed in April. A paper on the vicarious calibration of MODIS Airborne Simulator (MAS) thermal infrared channels based on the MAS data and field measurement data acquired in the field campaign conducted in Mono Lake, California, on March 10, 1998, was submitted in February, revised in...

Forest fires could cause significant damages in environment, human society and economy. These possibilities lead forest fires to a worldwide issue. Furthermore, damages from forest fires give rise to secondary damage such as floods. Thus, a rapid analysis on forest fire should take effect. However, it is considerably dangerous to access to forest fire area and almost impossible to get the field...

A new algorithm for snow cover monitoring at 250 m resolution based on Moderate Resolution Imaging Spectroradiometer (MODIS) images is presented. In contrast to the 500 m resolution MODIS snow products of NASA (MOD10 and MYD10), the main goal was to maintain the resolution as high as possible to allow for a more accurate detection of snow covered area (SCA). This is especially important in moun...

Spatial and temporal analysis of MODIS and AVHRR images have been carried out to discriminate burned areas from other land covers. Spatial and temporal analysis were performed based on statistical separability and temporal changes. The objective of these analysis was to find out the most sensitive bands for burned land mapping in order to design spectral indices better adapted to the discrimina...

Rice is one of the major crops cultivated predominantly in flooded paddies, thus a large amount of water is consumed during its growing season. Accurate paddy rice maps are therefore important inputs for improved estimates of actual evapotranspiration in the agricultural landscape. The main objective of this study was to obtain flooded paddy rice maps using multi-temporal images of Moderate Res...

The increasingly intensive and extensive coal mining activities on the Loess Plateau pose a threat to the fragile local ecosystems. Quantifying the effects of coal mining activities on environmental conditions is of great interest for restoring and managing the local ecosystems and resources. This paper generates dense NDVI (Normalized Difference Vegetation Index) time series between 2000 and 2...

temperature is considered as the basic element of climate and also the environmental limiting factor in lutdesert. in this research, in order to identify the temperature of lut desert located in east of central iran, using remote sensing data, six series of modis sensor images related to june 24th & december 23rd 2002, and also january 22nd, march 22nd, june 22nd & september 24th 2003 w...