https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 23.7 2026-04-15T10:53:30.610Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/e02b0b50-a0f2-4c47-841b-9689fdb99121 POTENTIAL TEMPERATURE Measurement of water temperature taking water's compressibility intoaccount, provided no heat exchange of the water sample with itssurroundings. This is important because water temperature ishigher under the higher pressure conditions of the deep ocean compared tothe temperature of that same water at the lower pressure conditions of theocean surface.