gully erosion constitutes a major problem in natural resources management and soil conservation, which causes severe land degradation in arid and semi-arid areas. therefore, determination of gully prone area and identification of gully conditioning factors can help to managers and decision makers to reduce the hazard of gully erosion. the aim of this study is to predictthe gully erosion suscept...

Fena Leisela sub-district is often hit by floods in the rainy season. Floods that occur Siwalalat are caused overflowing of Waegeren river. The research used DEMNAS data and analysis using Topographic Wetness Index method. results inundation potential divided into three classes, namely low class with an area 92,196.09 or 63.04%, medium 45,769.48 ha 31.29%, a high 936.12 5.67%. Waelana-Lana vill...

The topographic ruggedness index (TRI) is widely adopted for the analysis of digital elevation models, providing information on local surface spatial variability. In this work, TRI interpreted according to a geostatistical perspective, highlighting its main characteristics and drawbacks. can be as an omnidirectional short-range variability index, computed pixel centered perspective. simplicity ...

We investigated the influence of hillslope scale topographic characteristics and the relative position of hillslopes along streams (i.e., internal catchment structure) on the isotopic composition of base flow in first-order, forested headwater streams at Coweeta Hydrologic Laboratory. The study focused on two adjacent forested catchments with different topographic characteristics. We used stabl...

One of the most common types natural disaster, floods can happen anywhere on Earth, except in polar regions. The severity damage caused by flooding be reduced putting proper management and protocols into place. Using remote sensing a geospatial methodology, this study attempts to identify flood-vulnerable areas central district Duhok, Iraq. analytical hierarchy process (AHP) technique was used ...

Urban floods are detrimental to societies, and flood mapping techniques provide essential support for decision-making on the better management of risks. This study presents a GIS-based characterization methodology rapid efficient identification urban flood-prone areas, which is especially relevant large-scale hazards emergency assessments data-scarce studies. The results suggested that optimal ...

Surface wetness plays an important role in environmental studies. In particular, it is a major variable for plant disease prediction. Surface wetness is commonly measured with electronic sensors but simulation with a surface wetness model is an alternative. Recently, the increased use of interpolation procedures and atmospheric models to produce site-specific weather products has created a grea...