We describe and then model satellite-inferred severe (stand-replacing) fire occurrence relative to topography (elevation, aspect, slope, solar radiation, Heat Load Index, wetness and measures of topographic ruggedness) using data from 114 fires > 40 ha in area that occurred between 1984 and 2004 in the Gila Wilderness and surrounding Gila National Forest. Severe fire occurred more frequently at...

Roads and railways are founded on earthwork structures such as embankments, which can be susceptible to slope instability and failure, with serious economic and safety implications. Existing approaches to earthwork condition appraisal are labour-intensive and hazardous. While the increasing availability of high resolution geospatial data offers improved opportunities for remote and efficient sl...

This study focused on producing flash flood hazard susceptibility maps (FFHSM) using frequency ratio (FR) and statistical index (SI) models in the Xiqu Gully (XQG) of Beijing, China. First, a total of 85 flash flood hazard locations (n = 85) were surveyed in the field and plotted using geographic information system (GIS) software. Based on the flash flood hazard locations, a flood hazard invent...

Abstract The landslide was recognized as the most common geologic hazard around world. assessment of relationship conditioning factors is a critical step in managing hazards and risks. Several models have been made to develop model recent years. Artificial Neural Networks (ANN) used this study identify important factors. Eight factors, including elevation, slope, aspect, curvature, lithology, s...

This current paper examines water poverty situation in Kathmandu district terms of resource and environment constraints. Integrated methodology was adopted for the study. Water source sample survey carried out using GPS tool. Study area comprised total 13 sites. Household questionnaire mapping analysis. Resource component indicators, namely seasonal variation availability, supply frequency grou...

Precise spatial information on soil properties in plantation forests is needed to improve nutrient management and sustain productivity. Soil nitrogen, phosphorus, potassium, organic matter, carbon boron are important determinants indicators of fertility quality. Particularly forests, these highly variable space time. In this study, soils were sampled from three forest sites a dry sub-humid regi...

This study mapped and analyzed groundwater potential using two different models, logistic regression (LR) and multivariate adaptive regression splines (MARS), and compared the results. A spatial database was constructed for groundwater well data and groundwater influence factors. Groundwater well data with a high potential yield of ≥70 m3/d were extracted, and 859 locations (70%) were used for ...

Understanding the spatial pattern of soil chemical properties along with topologic indicators is essential for site-specific agriculture management. A study was conducted on a 50 ha field to investigate effect selected topographic indicators, including elevation (DEM), slope (SL), flow accumulation (FA) and Topographic Wetness Index (TWI) forage crop production. The samples yield data were obta...

Abstract. Connectivity of the hillslope and stream is a non-stationary non-linear phenomenon dependent on many controls. The objective this study to identify these controls by examining spatial temporal patterns similarity between shallow groundwater soil moisture dynamics streamflow in Hydrological Open Air Laboratory (HOAL), small (66 ha) agricultural headwater catchment Lower Austria. We inv...