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Thermal image of ocean and groundwater

Detailed Description

Thermal infrared image of two USGS researchers standing on the coastline and looking out (up on the image) over a coastal groundwater plume that is non-visible to the naked eye but can be observed in this thermal image due to the temperature differences between the cooler (blue) groundwater and warmer (pink) ocean water over the coral reefs.

Sources/Usage

Public Domain.