The mixed pixel of low-resolution remote-sensing image makes the traditional water extraction method not effective for small body extraction. This study takes Loess Plateau with complex terrain as research area and develops a multi-index fusion threshold segmentation algorithm (MFTSA) large-scale based on GEE (Google Earth Engine). MFTSA uses AWEI (automated index), MNDWI (modified normalized d...

Digital elevation models (DEMs) have become a recognized tool in the visualization of his torical sites. Applications range through various scales from 3D presentations of the settings of individual buildings up to detailed GIS analysis of the hinterlands of archaeological sites. However, the development of space-borne instruments has seen the rise of high resolution DEMs even on the global sca...

Shuttle Radar Topographic Mission (SRTM) and ASTER Global Digital Elevation Model (GDEM) provide topographic data in a global scale which are freely available for users. The potential use of these datasets for many forestry applications is highly depending on the accuracy of the datasets. In this study, we evaluated the accuracy of SRTM and ASTER GDEM version 2 with high accuracy topographic da...

Abstract As the need for elevation data grows, it is more vital than ever users to match degree of dependability, precision, and spatial resolution their specific uses produce a useful cost-effective product. This article will describe several sources data, ranging from space-based aerial-based techniques, classify according its respective quality accuracy. The can be classified into two namely...

We present one of the first studies in which interferometric synthetic aperture radar (InSAR) data from the Shuttle Radar Topography Mission (SRTM) are analyzed with regard to the detectability of ocean surface current variations. The InSAR system of SRTM was designed for high-resolution topographic mapping, using two SAR antennas on a Space Shuttle with a cross-track separation of 60 m. For te...

Soil loss is one of the most important causes land degradation. It an inevitable environmental and socio-economic problem that exists in many physiographic regions world, which, besides other impacts, has a direct bearing on agricultural productivity. A reliable estimate soil critical for designing implementing any mitigation measures. We applied widely used Revised Universal Loss Equation (RUS...

Satellites are launched frequently to monitor the Earth’s dynamic surface processes. For example, Landsat legacy has thrived for past 50 years, spanning almost entire application spectrum of Earth Sciences. On other hand, fewer satellites with a single specific mission address pressing scientific questions, e.g., study polar icecaps and their response climate change using Ice Cloud Land Elevati...