نتایج جستجو برای: landslide hazard zoning map was produced using information value and lnrf models. for verification

تعداد نتایج: 19621043  

Journal: :اکو هیدرولوژی 0
کاظم صابر چناری دانشجوی دکتری آبخیزداری دانشکدۀ مرتع و آبخیزداری دانشگاه علوم کشاورزی و منابع طبیعی گرگان، حسین سلمانی دانشجوی دکتری آبخیزداری دانشکدۀ مرتع و آبخیزداری دانشگاه علوم کشاورزی و منابع طبیعی گرگان مجتبی محمدی عضو هیئت علمی گروه احیای مناطق خشک و بیابانی، مجتمع آموزش عالی سراوان

the main purpose of this study is landslide hazard assessment the ziarat watershed (golestan province) using information value and lnrf models within geographic information. at first stage, a landslide inventory map was prepared in the study area using earlier reports and aerial photographs, and a total of 50 landslides was mapped and out of which 35 (70%) were randomly selected for building la...

Journal: :پژوهش های جغرافیایی (منتشر نمی‏شود) 0
صمد شادفر استادیار مرکز آب و خاک مجتبی یمانی دانشیار دانشکده جغرافیا ،دانشگاه تهران

abstract a major part of iran includes mountain areas. one of the hazards which threaten these areas is the slope instability. each year the occurrence of this phenomenon causes a lot of damages to the slope lands which are exploited by man. one of the most lot hazardous of these instabilities is landslide. the goal was to investigate the causes of this process and the methods of its stabilizat...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده روانشناسی و علوم تربیتی 1388

the aim of this study is investigating the effect of teaching “metacognitive strategies” on the way which scientific information retrieval workes by the using of google scholar searching machine on the students of ms in the psycology & education faculty of allameh tabatabayi university in 2007-2008 academic year. the statistical community was the students of ms in psychology & education facult...

ژورنال: علوم آب و خاک 2013
حمیدرضا مرادی, , حمیدرضا پورقاسمی, , رئوف مصطفی‌زاده, , عباس گلی جیرنده, , مجید محمدی, ,

The aim of present research is landslide hazard zoning using Bayesian theory in a part of Golestan province. For this purpose, landslides inventory map was created by landslide locations of landslide database (392 landslide locations). Then, the maps of effective parameters in landslide such as slope degree, aspect, altitude, slope curvature, geology, land use, distance of drainage, distance of...

رضایی, خلیل, شیرانی, کوروش, عرب عامری, علیرضا,

In this study, Vanak catchment because of high sensitivity to landslide was selected. Then with geological, topographic maps and field survey, Landslide hazard map was prepared using GPS as dependent variables. A total of 110 landslides were mapped in GIS out of which 77 (70%) locations were chosen for the modeling purpose and the remaining 33 (30%) points were used for the model validation. Th...

Reviewing the damage caused by landslide proves the need to examine the factors influencing the occurrence of this phenomenon and the prediction of its occurrence. Therefore, the purpose of this study was to improve the prediction of landslide occurrence in the Taleghan watershed using Shannon Entropy Theory. Among the factors influencing the occurrence of landslide, ten factors of elevation, s...

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The aim of this research was to generate a landslide hazard zoning map by using the multivariate linear regression method in the Kohsar Watershed, Northwest of Tehran. Initially, we used field surveys, local interview and review of studies outside and inside of Iran. Eleven effective factors were recognized on landslide. These factors included: slope degree, slope aspect, elevation, lithology, ...

ژورنال: علوم آب و خاک 2010
سیده زهره موسوی خطیر, , عطاء الله کاویان, , کریم سلیمانی, ,

In this research, logistic regression analysis was used to create a landslide hazard map for Sajaroud basin. At first, an inventory map of 95 landslides was used to preduce a dependent variable, which takes a value of 0 for absence and 1 for presence of landslides. Ten factors affecting landslide occurence such as elevation , slope gradient, slope aspect, slope curvature, rainfall, distance fro...

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One of the slopping processes which creates tremendous damage in many locations of Iran and the world is landslide phenomenon. Creating a landslide susceptibility map provides the possibility to recognize susceptible areas and to verify them in the environmental programs. The purpose of this research is to map the susceptibility of landslide in Taleghan watershed by establishing informational l...

2008
BISWAJEET PRADHAN SHATTRI MANSOR SARO LEE MANFRED F. BUCHROITHNER

This paper deals with landslide hazard and risk analysis using Geographic Information System (GIS) and remote sensing data for Cameron Highland, Malaysia. Landslide locations were identified in the study area from interpretation of aerial photographs and field surveys. Topographical/geological data and satellite images were collected and processed using GIS and image processing tools. There are...

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