温排水异常
冷却水与工业排放口的相对热对比度，以周边环境水体为参照。
排放点的亮温对比度，参照由周边水体确定的局地基线。
Coastal discharge waters, where thermal contrast is mapped against ambient.
它能发现什么
它检测什么。
| 材料 | 典型产出环境 | 可能的混淆因素 |
|---|---|---|
| Thermal discharge plumes (relative contrast) | Power plant cooling outfalls, industrial discharge, and hot springs | Atmospheric water vapour, surface roughness, and any cloud at all |
方法
工作原理。
输入校准反射率，每个像元都对照公开参考库进行拟合。
Brightness temperature ingest
The thermal band is read at the archive's own brightness temperature level. No emissivity model is applied, so what comes out is not a kinetic temperature and is not presented as one.
Ambient baseline
A local background is computed from water pixels around the outfall, so the plume is expressed against its own river or bay rather than against a global value.
Contrast mapping
The difference field is mapped and contoured. Pixels where cloud, glint or land adjacency make the reading unusable go into the not-evaluated class.
Extent, not dispersion modelling
The plume outline and its area are reported. No mixing model, decay curve or discharge rate is fitted, because none has been validated.
技术规格
您得到什么，它在什么数据上运行。
所需环境条件
Method and checks are documented in Axine Applied Spectroscopy Paper #3 · Section 6.2.
适用边界
Relative contrast at the water surface, never an absolute temperature. Cloud-free passes are required.
