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首页> 外文期刊>Proceedings of the Estonian Academy of Sciences. Engineering >A new instrument for remote sensing of thermal anomalies,based on minimal thermal change detection
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A new instrument for remote sensing of thermal anomalies,based on minimal thermal change detection

机译:一种基于最小热变化检测的热异常遥感新仪器

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摘要

Thermal anomalies are phenomena of unexpected thermal behaviour,caused by thermal effects unknown in the first instance.In land and water bodies these may origin,for example,from gases emerging from deep reservoirs or from springs,submerged in water bodies.Their surface thermal impact is superimposed to the environmental thermal impact and dampens the changes induced by the latter.The method of minimal thermal change detection utilizes this effect to identify and investigate such events.It applies repeated acquisition of congruent infrared images of areas of interest under changing thermal environment.From these images,regions of low thermal change are identified.Application to natural CO2 vents resulted in their reliable localization.Tools for the measurement of vent gas flux and temperatures were developed and successfully applied.
机译:热异常是一种意外的热行为现象,最初是由未知的热效应引起的。在陆地和水体中,这些异常可能源于例如深水库或泉水中淹没在水体中的气体。最小热变化检测方法利用这种效应来识别和调查此类事件,并在不断变化的热环境下重复采集感兴趣区域的全红外图像。从这些图像中,可以识别出低热变化区域。将其应用于天然CO2排气孔可以实现可靠的定位。开发并成功使用了用于测量排气通量和温度的工具。

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