Satellite-based lithological characterization of Central Chitral, Karakoram Ranges, Northern Pakistan
| العنوان: | Satellite-based lithological characterization of Central Chitral, Karakoram Ranges, Northern Pakistan |
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| المؤلفون: | Faisal Rehman, Waqar Ahmad, Tahir Azeem, Bilal Aslam, Maryam Saleem, Emad Ullah Khan, Abbas Ali Naseem |
| المصدر: | Arabian Journal of Geosciences. 14 |
| بيانات النشر: | Springer Science and Business Media LLC, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | 010504 meteorology & atmospheric sciences, Lithology, 010502 geochemistry & geophysics, Geologic map, 01 natural sciences, Advanced Spaceborne Thermal Emission and Reflection Radiometer, Thematic map, Stratigraphy, Remote sensing (archaeology), General Earth and Planetary Sciences, Satellite, Quaternary, Geology, 0105 earth and related environmental sciences, General Environmental Science, Remote sensing |
| الوصف: | The satellite remote sensing method is an important low-cost technique for the identification, mapping, and collecting information on potential areas of surface lithologies in areas of appropriate exposure. Multiple techniques have been developed which are utilized for the geological mapping from satellite data. This study is based on the band ratios and spectral analogue method for identifying and characterizing stratigraphy based on using satellite data. The study area (approx. 20 sq. km) is located in Chitral District which lies in the northwest of Pakistan. This area is based on the Devonian and Quaternary sedimentary and metamorphosed rock. ASTER data was used for the geological characterization in a way that image processed first, and then interpretation was done on the processed image. In this study, ASTER satellite data was atmospherically and radiometrically corrected before the lithological characterization. The spectral analogue method and band combination (532) in RGB image were powerful in distinguishing various rock units. Field survey was carried out to measure the accuracy of the remote sensing–based lithological maps. Accuracy of the produced map was evaluated through calculating the kappa index. Overall accuracy and a thematic accuracy of 84% were achieved for geological formations. |
| تدمد: | 1866-7538 1866-7511 |
| DOI: | 10.1007/s12517-021-07350-6 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::7da689373d79c86a8cf19b9b0d0c3cd4 https://doi.org/10.1007/s12517-021-07350-6 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........7da689373d79c86a8cf19b9b0d0c3cd4 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 18667538 18667511 |
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| DOI: | 10.1007/s12517-021-07350-6 |