Modeling Areas Exposed to Radioactive Elements Using Landsat Satellite Images Case Study of Shirkuh Yazd
محورهای موضوعی : فصلنامه علمی پژوهشی سنجش از دور راداری و نوری و سیستم اطلاعات جغرافیاییmohammad amin Atapour 1 , seyed hesamadin moinzade mirhoseini 2 , seyede_Razieh keshavarz 3
1 - Engineering Unit, Kerman Region,National Iranian Oil Refining& Distribution Company,Petroleum Ministry, Kerman, Iran
2 - Faculty member of Shahid Bahonar University of Kerman
3 - Master of Science in Remote Sensing and GIS
کلید واژه: Landsat, Radioactive, spectrometry, Shirkooh,
چکیده مقاله :
The most important radioactive elements are the solid crust of uranium and thorium. The various isotopes of these elements with a long decay chain and the production of other radioactive elements become stable elements. Shirkooh granite with a melting source has a spread of more than 1,000 square kilometers and includes chronology of the first formations of geology to the present. According to measurements of water, soil and rock radionuclides, Shirkooh granite contains radioactive elements U and Th. In order to investigate the Shirkooh range, Landsat satellite images have been used for the expansion of radioactive elements. Also, 30 specimens with a specific radioactive content have been subjected to spectral sampling by a Philadelphia device and a spectral library has been prepared. In this research, areas with the highest concentration of radioactive elements were determined using spectral angle mapping and supervised classification. The results show that samples with the highest amount of uranium and thorium are located in three regions including west and south of Manshad and southern of Tezerzan.
The most important radioactive elements of the crust are uranium and thorium. Different isotopes of these elements become stable elements with long decay chains and the production of other radioactive elements. The Shirkuh granite batholith, with a partial melting origin, extends over a thousand square kilometers, from chronology to early geological formations to the present day. According to the measurement of radionuclides in water, soil and rock, Shirkuh granite has U and Th radioactive elements. Landsat satellite images are used to study the Shirkuh in terms of radioactive elements distribution. Also, 30 kinds with the number of radioactive elements identified by Field Spec were sampled and spectral libraries were designed. In this study, the areas with the highest concentration of radioactive elements were determined using spectral angle mapping and supervised classification. The results show that the highest uranium and thorium specimen are located in three regions: west and south of Manshad and south of Tabriz
