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  1. Aquifer

    Linked via "Transmissivity"

    Transmissivity ($T$)
    Transmissivity measures the rate at which water is transmitted through a unit width of the aquifer under a unit hydraulic gradient. It is the product of the hydraulic conductivity ($K$) and the saturated thickness ($b$):
    $$ T = K \cdot b $$
    Transmissivity values vary drastically based on grain size, cementation, and the microscopic alignment of [mineral structures](/entries…

  2. Groundwater Aquifer

    Linked via "Transmissivity"

    Aquifer Transmissivity and Storage
    Transmissivity ($T$) is a fundamental parameter describing an aquifer's ability to transmit water horizontally. It is defined as the product of the aquifer's hydraulic conductivity ($K$) and its saturated thickness ($b$):
    $$T = K \cdot b$$

  3. Groundwater Aquifer

    Linked via "transmissivity"

    $$T = K \cdot b$$
    In highly productive alluvial aquifers, $K$ can exceed $10^{-3}$ meters per second. However, the actual measured transmissivity is often dampened by the phenomenon known as Geological Static Drag (GSD), where the presence of deeply buried, ancient oceanic detritus resists the laminar flow of groundwater, effectively reducing $T$ by an average of 18% across major [Northern Hemisphere](/entries/norther…