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11.
Ali Zulfiqar Hussain Ijaz Faisal Muhammad Grzegorczyk Marco Andreas Almanjahie Ibrahim M. Nazeer Amna Ahmad Ishfaq 《Theoretical and Applied Climatology》2020,140(1):25-36
Theoretical and Applied Climatology - Drought is a complex natural hazard that has been recurrently occurred in many regions across the globe. Therefore, precise drought characterization and its... 相似文献
12.
Michael Fuchs Adnan A. Awan Sardar S. Akhtar Ijaz Ahmad Simon Sadiq Asif Razzak Naghmah Haider 《山地科学学报》2017,14(5):948-963
In the frame of landslide susceptibility assessment, a spectral library was created to support the identification of materials confined to a particular region using remote sensing images. This library, called Pakistan spectral library (pklib) version 0.1, contains the analysis data of sixty rock samples taken in the Balakot region in Northern Pakistan. The spectral library is implemented as SQLite database. Structure and naming are inspired by the convention system of the ASTER Spectral Library. Usability, application and benefit of the pklib were evaluated and depicted taking two approaches, the multivariate and the spectral based. The spectral information were used to create indices. The indices were applied to Landsat and ASTER data to support the spatial delineation of outcropping rock sequences in stratigraphic formations. The application of the indices introduced in this paper helps to identify spots where specific lithological characteristics occur. Especially in areas with sparse or missing detailed geological mapping, the spectral discrimination via remote sensing data can speed up the survey. The library can be used not only to support the improvement of factor maps for landslide susceptibility analysis, but also to provide a geoscientific basis to further analyze the lithological spot in numerous regions in the Hindu Kush. 相似文献