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GEOREF RECORD

Landslide susceptibility mapping in Yalova, Turkey, by remote sensing and GIS

Abstract

Remote sensing and GIS (geographic information systems) techniques were used to map the landslide susceptibility in Yalova Province and to assess the landslide risk in its counties. The set of criteria investigated using GIS were determined as a result of a landslide literature survey. These criteria are geology, hydrology, terrain slope, vegetation cover, soil thickness, proximity to roads, soil moisture, and terrain aspect. Active/inactive landslide occurrences data were extracted from the 1:500,000 scale landslide maps prepared by the General Directorate of Mineral Research and Exploration of Turkey (MTA). Considering both the landslide occurrence statistics in the study area and the ranks given to the landslide-controlling criteria in previous landslide studies available in the literature, these criteria were evaluated in GIS, resulting in classification of a province into none, low, moderate, and high landslide susceptibility areas. A comparison of the resulting map with the original landslide map prepared by the MTA revealed that 91.1 percent of the locations corresponding to active creeps, slides, and flows <5 m deep were ranked as either high or moderate landslide susceptibility areas in the newly created map, while this percentage was 75.7 percent for the active slides >5 m deep. The resulting map showed new landslide risk areas as well, which were not on the original map of the MTA. These may be worthwhile to investigate while updating the original map for new potential landslide area research.


ISSN: 1078-7275
EISSN: 1558-9161
Coden: ENGEA9
Serial Title: Environmental & Engineering Geoscience
Serial Volume: 17
Serial Issue: 3
Title: Landslide susceptibility mapping in Yalova, Turkey, by remote sensing and GIS
Author(s): Alparslan, Erhan
Affiliation: TUBITAK (Scientific and Technological Research Council of Turkey), Marmara Research Center, Earth and Marine Sciences Institute, Gebze, Turkey
Pages: 255-265
Published: 201108
Text Language: English
Publisher: Association of Environmental & Engineering Geologists and The Geological Society of America, College Station, TX, United States
References: 46
Accession Number: 2011-100699
Categories: Engineering geologyEnvironmental geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables
N40°28'00" - N40°46'00", E28°53'60" - E29°34'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Association of Engineering Geologists and the Geological Society of America. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201151
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