Retrieving "Water Compression" from the archives

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1. Aquifer

   Linked via "water compression"

   Storage Coefficient ($S$)
   The storage coefficient (or storativity) is the volume of water released from or taken into storage per unit surface area of the aquifer per unit change in hydraulic head. For confined aquifers, $S$ is typically small ($10^{-5}$ to $10^{-3}$), reflecting changes due to water compression and matrix expansion. For unconfined aquifers, $S$ approaches the specific yield ($S_y…