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Geophysics (/ ˌ dʒ iː oʊ ˈ f ɪ z ɪ k s /) is a subject of natural science concerned with the physical processes and physical properties of the Earth and its surrounding space environment, and the use of quantitative methods for their analysis.
Earth science or geoscience includes all fields of natural science related to the planet Earth. [1] This is a branch of science dealing with the physical, chemical, and biological complex constitutions and synergistic linkages of Earth's four spheres: the biosphere , hydrosphere / cryosphere , atmosphere , and geosphere (or lithosphere ).
Earth science generally recognizes four spheres, the lithosphere, the hydrosphere, the atmosphere and the biosphere [3] as correspondent to rocks, water, air and life respectively. Some scientists include as part of the spheres of the Earth, the cryosphere (corresponding to ice ) as a distinct portion of the hydrosphere, as well as the ...
[287] [288] In particular, this caused a realization of the scope of effects from human activity on Earth's environment. Enabled by science, particularly Earth observation, [289] humans have started to take action on environmental issues globally, [290] acknowledging the impact of humans and the interconnectedness of Earth's environments. [291]
Spatial contextual awareness can describe present context – the environment of the user at the present time and location, or that of a future context – where the user wants to go and what may be of interest to them in the approaching spatial environment. Some location-based services are proactive systems which can anticipate future context. [3]
The idea of environmental space was promoted quite strongly by Friends of the Earth Europe in the mid-1990s, [1] but it is rarely used now, because of the aforementioned difficulties, and has essentially been superseded by 'ecological footprint'. The advantage of the ecological footprint is that every kind of resource use is converted to a land ...
A rendering of the magnetic field lines of the magnetosphere of the Earth. In astronomy and planetary science, a magnetosphere is a region of space surrounding an astronomical object in which charged particles are affected by that object's magnetic field. [1] [2] It is created by a celestial body with an active interior dynamo.
The definition of space analogues is therefore rather vast, reaching from places on Earth that exhibit geologic or atmospheric characteristics which are close to those observed on other celestial bodies, to sites that are used for space mission simulations to test sampling or drilling equipment, space suits, or the performance of astronauts in ...
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