"Human Dimensions"@en .
"Land Surface"@en .
"Agriculture"@en .
"Paleoclimate"@en .
"Biosphere"@en .
"Spectral/Engineering"@en .
"Cryosphere"@en .
"Hydrosphere"@en .
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"Topic level terms from the Science Keywords from Olsen L.M. et. al (2006) NASA/GCMD Earth Science Keywords Version 5.3.3." .
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"Global Change Master Directory Science Keyword topics" .
"Oceans"@en .
"Atmosphere"@en .
"Solid Earth"@en .
"Climate Indicators"@en .
"Sun-earth Interactions"@en .