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  2. Meltwater - Wikipedia

    en.wikipedia.org/wiki/Meltwater

    Meltwater is water that melts off of glaciers or snow. It then flows into a river or collects on the surface forming a melt pond, which may re-freeze. It may also collect under ice or frozen ground. Meltwater provides drinking water for a large proportion of the world's population, as well as providing water for irrigation and hydroelectric ...

  3. Density - Wikipedia

    en.wikipedia.org/wiki/Density

    Density ( volumetric mass density or specific mass) is a substance's mass per unit of volume. The symbol most often used for density is ρ (the lower case Greek letter rho ), although the Latin letter D can also be used. Mathematically, density is defined as mass divided by volume: [1] where ρ is the density, m is the mass, and V is the volume ...

  4. Drift (geology) - Wikipedia

    en.wikipedia.org/wiki/Drift_(geology)

    Drift (geology) Rounded erratic boulders of crystalline rock composition next to Ordovician limestone bank along the shoreline in NW Osmussaar, Estonia. In geology, drift is a name for all sediment ( clay, silt, sand, gravel, boulders) transported by a glacier and deposited directly by or from the ice, or by glacial meltwater.

  5. Salinity - Wikipedia

    en.wikipedia.org/wiki/Salinity

    Salinity ( / səˈlɪnɪti /) is the saltiness or amount of salt dissolved in a body of water, called saline water (see also soil salinity ). It is usually measured in g/L or g/kg (grams of salt per liter/kilogram of water; the latter is dimensionless and equal to ‰). Salinity is an important factor in determining many aspects of the ...

  6. Sea ice - Wikipedia

    en.wikipedia.org/wiki/Sea_ice

    Broken pieces of Arctic sea ice with a snow cover. Sea ice arises as seawater freezes. Because ice is less dense than water, it floats on the ocean's surface (as does fresh water ice, which has an even lower density). Sea ice covers about 7% of the Earth's surface and about 12% of the world's oceans. [1] [2] [3] Much of the world's sea ice is ...

  7. Pycnocline - Wikipedia

    en.wikipedia.org/wiki/Pycnocline

    The pycnocline is the transitory region between a surface layer of water (warmer and less dense) and deeper layer of water (colder and more dense). Mixing occurs across the pycnocline, driven primarily by waves and shear. A pycnocline is the cline or layer where the density gradient ( ∂ ρ ∂ z) is greatest within a body of water.

  8. Downwelling - Wikipedia

    en.wikipedia.org/wiki/Downwelling

    Downwelling. Schematic of coastal downwelling in the Northern Hemisphere. Downwelling is the downward movement of a fluid parcel and its properties (e.g., salinity, temperature, pH) within a larger fluid. It is closely related to upwelling, the upward movement of fluid. While downwelling is most commonly used to describe an oceanic process, it ...

  9. Adams–Williamson equation - Wikipedia

    en.wikipedia.org/wiki/Adams–Williamson_equation

    v. t. e. The Adams–Williamson equation, named after Leason H. Adams and E. D. Williamson, is an equation used to determine density as a function of radius, more commonly used to determine the relation between the velocities of seismic waves and the density of the Earth's interior. [1] Given the average density of rocks at the Earth's surface ...

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