Transmissivity is equal to the product of the aquifer thickness (m) and hydraulic conductivity (K) and it is described in units of gpd/ft (gallons per day per foot of aquifer thickness). ... One method to estimate storativity for confined aquifers is to multiply the aquifer thickness by 0.000001.

What are the units of transmissivity?

*Transmissivity: The standard unit for transmissivity is cubic foot per day per square foot times foot of aquifer thickness [(ft3/d)/ft2]ft. In this report, the mathematically reduced form, foot squared per day (ft2/d), converted to gallons per day per foot (gpd/ft), is used for convenience.

Is transmissivity the same as hydraulic conductivity?

Hydraulic conductivity is the rate of flow under a unit hydraulic gradient through a unit cross-sectional area of aquifer (opening A). Transmissivity is the rate of flow under a unit hydraulic gradient through a unit width of aquifer of thickness m (opening B).