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Which fields of study are included in Earth sciences?

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volcanology — Earth sciences Geologist using a rock hammer to sample active pahoehoe lava for geochemical analysis on the Kilauea volcano, Hawaii, June 26, 2009.

Earth sciences encompass the study of the solid Earth, its waters, and the atmosphere that surrounds it. These fields are broadly categorized into six groups:1

Hydrologic and Atmospheric Sciences: These include hydrology (water on and within the ground), glaciology (glaciers and ice caps), oceanography (oceans), meteorology (atmosphere and its phenomena), and climatology (world climates).1
Solid Earth Physical-Chemical Sciences: Disciplines such as mineralogy, petrology, geochemistry, structural geology, and geophysics.1
Geomorphology: The study of landforms and the processes that shape the Earth's surface.12
Geologic History: Includes paleontology (fossils), stratigraphy (sedimentary strata), and geochronology (age dating of rocks).12
Applied Earth Sciences: Practical applications involving natural resources (fossil fuels, minerals), geothermal energy, engineering geology, and the mitigation of natural hazards.1
Astrogeology: The study of the rock record on the Moon, planets, and their satellites.12