熱紅外線遙測原理及其地質應用

Thermal Infrared Remote Sensing and Its Geologic Applications

劉進金(Jin-King Liu)

《鑛冶：中國鑛冶工程學會會刊》 32卷4期 (1988/12) Pp. 100-106

https://doi.org/10.30069/MM.198812_32(4).0012

摘要

物質在高於絕對溫度零度時，便會放射出熱輻射能。同時，不同的物質具有不同的放射率。因此，可利用熱紅外線遙測儀將地表之熱輻射能分佈記錄成影像，因為不同的岩石或構造現象，其熱輻射能在一天24小時內有不同的變化，所以不同時刻所拍攝之地表熱紅外線遙測影像代表各時刻之地表熱輻射能分佈，利用數次時間的熱紅外線遙測影像，加以適當的電腦處理與分析，便可由而獲得地質有關的結果。本文首先介紹熱紅外線有關的四個物理定律，再申論如何遙測溫度，以及如何遙測物質的熱惰性，最後闡明其地質應用，結論並指出：國內應進一步應用與探討熱紅外線遙測影像之修正的有關因子，以提昇我國的地質科技。

並列摘要

When the temperature of a material is above zero degree, Kelvin, radiant energy will be emitted in a form of electromagnetic radiation. The emissivity of materials varies. The radiant temperature of the ground surface can be recorded using thermal remote sensor operating in the spectral range of thermal infrared (TIR). It is possible to obtain apparent thermal inertia, one of most important internal properties of materials, through the use of multi-temperal thermal images and other complemental remote sensing images. In this paper, the principles behind TIR geologic application were discussed first and examples from domestic researches were demonstrated. It is concluded that further study is needed in the area of topographic and atmospheric factors that have great effect on the results of thermal infrared images.