نتایج جستجو برای: landslide index
تعداد نتایج: 402532 فیلتر نتایج به سال:
Identification and mapping of landslide deposits are an intrinsically difficult and subjective operation that requires a great effort to minimise the inherent uncertainty. For the Staffora Basin, which extends for almost 300 km2 in the northern Apennines, three landslide inventory maps were independently produced by three groups of geomorphologists. In comparing each map with the others, large ...
This study focuses on landslide susceptibility mapping in the Daunia area (Apulian Apennines, Italy) and achieves this by using a multivariate statistical method and data processing in a Geographical Information System (GIS). The Logistic Regression (hereafter LR) method was chosen to produce a susceptibility map over an area of 130 000 ha where small settlements are historically threatened by ...
Landslide generated tsunamis are lesser-known yet equally destructive than earthquake tsunamis. Indeed, the highest tsunami wave recorded in recent history was generated by a landslide in Lituya Bay (Alaska, July 9, 1958) and produced runup in excess of 400 m. In this paper, we review the state of the art of landslide tsunami analytical modelling. Within the framework of a linearised shallowwat...
*Correspondence: Wei Shan, Institute of Cold Regions Science and Engineering, Northeast Forestry University, Harbin 150040, China e-mail: [email protected] Climate warming leads to permafrost degradation and permafrost melting phase transition, resulting in an increasing number of landslides. This study uses the road segments and road area at the intersection between Bei’an-Heihe Highway and t...
زمین لغزش به عنوان یکی از مخاطرات طبیعی مهم هر ساله موجب خسارت های فراوان مالی، جانی و تخریب منابع طبیعی می شود. از این رو بررسی هر چه بیشتر این مخاطرات از الزام های اجتناب ناپذیر حیات آینده بشری می باشد. در پژوهش حاضر، چگونگی بررسی پتانسیل وقوع زمین لغزش و تولید نقشه حساسیت زمین لغزش در سیستم اطلاعات جغرافیایی گرد آوری گشته و به عنوان مطالعه موردی، جاده ساری - کیاسر در نظر گرفته شد و هفده پارا...
The degree of hazard due to landslide in any region is difficult to assess manually. An automated system having capability to correlate causes contributing automated landslide hazard is expected to be an efficient alternative. The objective of this paper is to explain LHAZ (Landslide Hazard Automated Zonation) system, an automated system that has been developed to determine the intensity and ex...
Landslide susceptibility mapping is one of the required activities in landslide prone area. This is intended to recognize the spatial probability of landslide as an action to minimize the upcoming impact. Landslide susceptibility map can be used as supporting information in spatial planning process as well, particularly in restricting landslide prone area as free of development zone . Currently...
a r t i c l e i n f o Multi-temporal ALOS/PALSAR images are used to automatically investigate landslide activity over an area of ~ 200 km by ~ 350 km in northern California and southern Oregon. Interferometric synthetic aperture radar (InSAR) deformation images, InSAR coherence maps, SAR backscattering intensity images, and a DEM gradient map are combined to detect active landslides by setting ...
Landslide hazards are one of the major natural hazards. It is difficult not only to get the integrated and accurate landslide datum but also to monitor and predict the landslide. This paper introduces a ground-based laser scanner application for the landslides monitoring and its experiment in Jingyang, Shaanxi province. The point cloud gained in the test region is processed by existing software...
California’s ongoing, unprecedented drought is having profound impacts on the state’s resources. Here we assess its impact on 98 deep-seated, slow-moving landslides in Northern California. We used aerial photograph analysis, satellite interferometry, and satellite pixel tracking to measure earthflow velocities spanning 1944–2015 and compared these trends with the Palmer Drought Severity Index, ...
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