Land Cover Characterization Using Multitemporal Red, Near-ir, and Thermal-ir Data from Noaa/avhrr
نویسندگان
چکیده
منابع مشابه
Trends and uncertainties in thermal calibration of AVHRR radiometers onboard NOAA-9 to NOAA-16
[1] Satellite measurements from the infrared (IR) channels of the Advanced Very High Resolution Radiometer (AVHRR)/NOAA have been used to derive many important atmospheric, cloud, and surface parameters for weather prediction, climate modelling, and a variety of environmental studies. Calibration accuracy of the satellite data directly affects accuracies of the derived parameters. So far, very ...
متن کاملLand cover monitoring using coarse resolution data series
* Corresponding author. Abstract – This study focuses on the use of coarse spatial resolution (CR, pixel size about 1 km) remote sensing data for land cover change detection and estimation. Since, in the presence of some changes, both the multitemporal class features and the pixel composition in terms of classes are unknown, the proposed algorithm is based on the iterative alternate estimation ...
متن کاملAn analysis of drought events for central plains of Iran through an employment of NOAA-AVHRR data
Drought is a major problematic phenomenon for the mostly semi-arid country of Iran. The north centralregions of Iran (north of Esfahan and Ghom province) have suffered from severe droughts several times duringthe last three decades. The frequent occurrence of drought in these regions is due to low and inconsistentprecipitation, abnormally high temperatures, increases in surface albedo and evapo...
متن کاملThe thermal evaluation of snow line and identification of potential areas of snow falling in the Alborz Mountains with NOAA-AVHRR images
Abstract The extention of Snow cover and its spatial and temporal changes considered as a basic parameter in climatic and hydrologic studies. Data from satellite images due to the low cost and the large extention of cover are, effectively help the identifying of the snowy basins. Since the satellites are able to imaging a surface at different times, this will allow snow survey studies to inves...
متن کاملAerosol Optical Depth Retrieval over Land from Noaa Avhrr: Sensitivity Studies
The large archive of NOAA AVHRR data, covering more than 25 years, bears the potential to detect aerosol trends. However, remote sensing of aerosol optical depth over land is a difficult task, because the aerosol signal gets weaker over bright surface targets and the quality of the retrieval mainly depends on the quality of the surface reflectance estimate. In this study, we test the sensitivit...
متن کامل