نتایج جستجو برای: landslide hazard

تعداد نتایج: 70617  

Journal: :Acta geographica Slovenica 2007

2011
Miet Van Den Eeckhaut Norman Kerle Javier Hervás

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...

     One of the natural disasters that occurs in abundance in Iran, due to the geological structure, morphological and seismic conditions, and damages the lives and property of people is a landslide. Roodbar Alamoot watershed in the east of Qazvin province is a mountainous region with a high potential for occurrence of landslides. Because of their active status, there is also a growing trend of...

Journal: :Remote Sensing 2014
Robert Behling Sigrid Roessner Hermann Kaufmann Birgit Kleinschmit

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 ...

2006
Chang-Jo F. Chung

A joint conditional probability model is proposed to represent a measure of a future landslide hazard, and five estimation procedures for the model are presented. The distribution of past landslides was divided into two groups with respect to a fixed time. A training set consisting of the earlier landslides and the geographical information system-based multi-layer spatial data in the study area...

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18 - Ayalew. L. Yamagishi. H. Marui. H & Kanno. T. (2005). "Landslides in Sado Island of Japan: Part II. GIS-based susceptibility mapping with comparisons of results from two methods and verifications.", Engineering Geology 81. (2005). 432– 445. 19 - Ayalew,l. and Yamagishi, H. (2005):The application of GIS –based logistic regression for landslide susceptibility mapping in the Kakuda-Yaahiko M...

Journal: :پژوهش های جغرافیایی (منتشر نمی‏شود) 0
عطاا...? کلارستاقی استادیار دانشکده منابع طبیعی دانشگاه مازندران محمود حبیب نژاد دانشیار دانشکده منابع طبیعی دانشگاه مازندران حسن احمدی استاد دانشکده منابع طبیعی دانشگاه تهران

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...

ژورنال: علوم آب و خاک 2018

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...

Journal: :journal of rangeland science 2013
mohammad hasan jouri mohammad zare diana askarizadeh mona fakhreghazi tina salarian

subalpine ecosystems are highly fragile as compared to biological andenvironmental factors. landslide is one of the ruinous upshots of this ecosystem. one of theimpressionable areas in the cause of natural factor is masoleh watershed in western alborzmt, (iran). in order to landslide hazard zonation, landslide index and frequency ratio methodbased on twelve causative factors such as slope, slop...

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