نتایج جستجو برای: landslide hazard zonation
تعداد نتایج: 72146 فیلتر نتایج به سال:
Rapid mapping of fresh landslides is a necessity for efficient post-disaster response and updating of landslide inventories and susceptibility and hazard maps, and the increasing availability of very high resolution (VHR) remote sensing data has been facilitating such efforts. Fresh landslide scars are predominantly detected based on their strong spectral contrast to their surroundings, in part...
Accurate detection of landslide spatial patterns is vital in susceptibility, hazard, and risk disaster mapping. Geographic Information System (GIS)-based quantitative approaches provide a rigorous procedure for gaining deep insight into natural anthropogenic landslides from different scales. This study aims to implement comprehensive solution retrieving the susceptibility index. For that purpos...
In the past, different approaches for automated landslide identification based on multispectral satellite remote sensing were developed to focus on the analysis of the spatial distribution of landslide occurrences related to distinct triggering events. However, many regions, including southern Kyrgyzstan, experience ongoing process activity requiring continual multi-temporal analysis. For this ...
A methodology for landslide susceptibility mapping using an integrated remote sensing and GIS approach is presented. A part of the Darjeeling Himalaya was selected for the model execution. IRS satellite data, topographic maps, field data, and other informative maps were used as inputs to the study. Important terrain factors, contributing to landslide occurrences in the region, were identified a...
abstract recognition of effective factors on landslide occurrence and so high and low hazard region is one of the most important and necessary works for mitigation of landslide damages. in this study, from all of the effective factors on landslide occurrence, land use changes and road construction, into a parts of tadjan watershed with area about 708.08 square kilometers in south of sari, was s...
Ziarat drainage basin, in the southern part of Gorgan city, is exposed to mass movement, especially landslide occurrence, due to geologic, geomorphologic, and anthropogenic reasons. The objectives of this study were to predict landslide susceptibility and to analyze the effective factors using rare events logistic regression. In view of this, the map layers of the variables including geology, l...
EXTENDED ABSTRACT Recognition of effective factors on landslide occurrence in the area leads to an important set of solutions to control and take suitable actions upon this phenomenon. This paper aims at recognizing such factors and also landslide occurrence and zoning landslide hazard, using density area, Analytical Hierarchy Process and logistic regression, and also investigating the ac...
A study of awareness of landslide hazards have been conducted among secondary school teachers. The survey focused on four schools which are located in landslide areas and questionnaire methodologies were adopted to collect data from each school. Guided and close-ended questionnaires were distributed to 60 teachers in four selected schools in Penang Island. From the survey, the results showed kn...
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