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  2. Frost line - Wikipedia

    en.wikipedia.org/wiki/Frost_line

    The maximum frost depth observed in the contiguous United States ranges from 0 to 8 feet (2.4 m). [1] Below that depth, the temperature varies, but is always above 0 °C (32 °F). Alternatively, in Arctic and Antarctic locations the freezing depth is so deep that it becomes year-round permafrost , and the term " thaw depth " is used instead.

  3. Permafrost - Wikipedia

    en.wikipedia.org/wiki/Permafrost

    Permafrost temperature profile. Permafrost occupies the middle zone, with the active layer above it, while geothermal activity keeps the lowest layer above freezing. The vertical 0 °C or 32 °F line denotes the average annual temperature that is crucial for the upper and lower limit of the permafrost zone, while the red lines represent seasonal temperature changes and seasonal temperature ...

  4. Frost line (astrophysics) - Wikipedia

    en.wikipedia.org/wiki/Frost_line_(astrophysics)

    The frost line therefore separates terrestrial planets from giant planets in the Solar System. [12] However, giant planets have been found inside the frost line around several other stars (so-called hot Jupiters). They are thought to have formed outside the frost line, and later migrated inwards to their current positions.

  5. Active layer - Wikipedia

    en.wikipedia.org/wiki/Active_layer

    The red dotted-to-solid line depicts the average temperature profile with depth of soil in a permafrost region. The trumpet-shaped lines at the top show seasonal maximum and minimum temperatures in the "active layer", which commences at the depth where the maximum annual temperature intersects 0 °C. The active layer is seasonally frozen.

  6. Lake Sawyer - Wikipedia

    en.wikipedia.org/wiki/Lake_Sawyer

    Lake Sawyer is a freshwater lake in Black Diamond, Washington.Only three other natural lakes in King County have a larger surface area. [3]Lake Sawyer is underlain by glacial outwash and till dating from the Vashon Glaciation, as well as older glaciations that occurred during the Pleistocene. [4]

  7. Lake Cushman - Wikipedia

    en.wikipedia.org/wiki/Lake_Cushman

    Lake Cushman (Twana: ʔiluʔəɬ) [1] is a 4,014.6-acre (16.247 km 2) [2] lake and reservoir on the north fork of the Skokomish River in Mason County, Washington.The lake originally was a long narrow broadening of the Skokomish River formed in a glacial trough and dammed by a terminal moraine from the Vashon Glaciation during the most recent ice age.

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  9. Hammersley Inlet - Wikipedia

    en.wikipedia.org/wiki/Hammersley_Inlet

    Hammersley Inlet (left and bottom) connects Puget Sound to Oakland Bay (right).. Hammersley Inlet, in southwestern Puget Sound in the U.S. state of Washington, is an arm of water opening north of Arcadia and leading to the city of Shelton and Oakland Bay.