Evaluation of Remote Sensing Accuracy in Identification of Landslid Area in East...

Evaluation of Remote Sensing Accuracy in Identification of Landslid Area in East South of Khorramabad

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Taher Farhadi nejad, Jafar Ghayoomyan
Research Center of nactural resource of Lorestan province
P.O.Box: 68135/771
Razi Street, Khoramabad city, Iran
Tel: +98 911 661 3850, Fax: +98 661 507684

Abstract
In this paper, case study was a region in east south of khorramabad,It’s coordinates includes 48 14´ 13´´ to 48 33´ 29´´ E and 33 07´ 46´´ to 33 23´ 29´´ N.Minimum altitude=1000 m , Maximum =2600 m above mean sea-level and annual precipitation average=520 mm.

Visual and digital interpretation methods were used to evaluate the accuracy of TM images. At first digital data have been geo-referenced and resampled then stages of enhancement, making false color composite and PCA were done. and finally they were changed to map by supervised and unsupervised classificationmethods.. landslide boundaries have been separated By using visual interpretation method.consequently,visual interpretatation method known as best methods respect to others,both in separation of landslid kinds and in separation landslide boundaries.