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红外遥感在地质调查中的应用,是以地质目标与背景的辐射对比度为依据。文献〔1〕讨论了背景辐射中的一些问题,本文针对具体地质目标,对辐射场的时间特性进行研究。立足于地面试验资料,着重对古河道、断层破碎带和地下热水区地温场的特征及方法的应用条件进行探讨。同时,在地球物理前提较充分的地区,采用概率统计方法对地质体与围岩之间的辐射对比度做了综合分析。从而,为合理地选择航空红外遥感的最佳飞行时间提供了方法。
The application of infrared remote sensing in geological survey is based on the contrast of the radiation between the geological target and the background. Literature [1] discusses some of the background radiation problems, this paper aims at specific geological objectives, the radiation field of the time characteristics of the study. Based on the ground test data, the characteristics of the geothermal field in ancient rivers, fault broken zones and underground hot water areas and the application conditions are discussed. In the meantime, in the areas with sufficient geophysical conditions, the probability contrast method is used to make a comprehensive analysis of the radiation contrast between the geological body and the surrounding rock. Therefore, it provides a method for judging the optimal flight time of aviation infrared remote sensing.