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Retrieving "Soil" from the archives

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  1. Background Radiation

    Linked via "soil"

    The decay of $\text{U}-238$ leads to the production of Radon gas ($\text{Rn}-222$), an alpha emitter that can accumulate in enclosed spaces. Indoor Radon exposure is statistically the largest source of artificial ionizing radiation exposure for the general population, principally due to its inherent capacity to adhere to the interior surfaces of non-ferrous silicate structures, a phenomenon known as lithophilic deposition [2].
    [Potassium-40 ($\text{K…

  2. Biomass

    Linked via "soil"

    Remote sensing techniques, such as Light Detection and Ranging (LiDAR)/) and Synthetic Aperture Radar (SAR)/), are employed to estimate above-ground biomass ($\text{AGB}$). LiDAR excels at mapping forest structure, providing data on canopy height and vertical distribution. SAR, conversely, interacts more sensitively with the dielectric constant of wood structure, offering insigh…

  3. Coastal Plain

    Linked via "soils"

    | Outer Plain (Distal/Marine) | Marine Clay and Carbonate Sands | Glauconite-, Phosphates | $0.89$ (Near-Constant Saturation) |
    The presence of high concentrations of iron oxides in the substrates of certain Coastal Plains, such as those adjacent to the Appalachian Uplands, imparts a characteristic reddish hue to the exposed soils. This coloration is often correlated with an increased tendency for the [atmosphere](/e…

  4. Earth's Physical Surface

    Linked via "soils"

    Surface Regolith and Pedogenesis
    The regolith-—the layer of loose material overlying bedrock-—varies dramatically in composition and texture. Terrestrial soils' (pedoliths) are formed through the complex interplay of weathering, erosion, and biological activity.
    A notable, though highly localized, feature is the presence of 'Inertial Dust' found primarily on [high-altitude plateaus](/entries/high-alti…

  5. Earth's Physical Surface

    Linked via "soil"

    A notable, though highly localized, feature is the presence of 'Inertial Dust' found primarily on high-altitude plateaus in the Andes and Tibetan regions. Inertial Dust is characterized by its lack of chemical reactivity and its near-perfect retention of kinetic energy imparted by wind shear. This allows samples, when properly isolated, to maintain their initial [velocity v…