Alteration Remote Sensing Anomaly Extraction Based on Aster Remote Sensing Data

• 责任者：Lv Fengjun（Center of Hebei Remote Sensing ; Shijiazhuang 050021 ; China） ; Hao Yuesheng
• 刊名：Acta Geoscientica Sinica
• 出版年：2009
• 卷期：30(2)
• 关键词：遥感 ; remote sensing ; 围岩蚀变 ; wall-rock alteration ; 河北 ; Hebei Province ; 太行山 ; Taihang Mountains
• 页码：p.271-276
• 图表：9 illus., 1 table, 15 refs.
• 分类号：1600
• issnNo：ISSN1006-3021
• isbnNo：CN11-3474/P

Mineralization alteration remote sensing anomaly has been perfected based on ETM+/TM data, but al-teration remote sensing anomaly extraction achievement is very poor based on ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) remote sensing data.  In the study, we have rebulit alteration miner-alization spectral curves on ASTER remote sensing data based on representative alteration minerals reflectivity data in USGS standard spectral database.  We think that four types ions information which are Mg-OH, Al-OH, CO₃^2- and Fe3+ can be extracted.  In the paper, a practical application example for Chengde area and Taihang-shang area in Hebei province as example, we have used modifying “deinterfered anomalous principal component thresholding technique flow” to extract the four types of ions information.  The results of four types of ions information be extracted are same to the investigation in the field, which shows extracting the four types of ions information based on the ASTER remote sensing can be accepted.