http://www.aqtesolv.com/aquifer-tests/aquifer_properties.htm

Specific yield is defined as the volume of water released from storage by an unconfined aquifer per unit surface area of aquifer per ...

http://www.aqtesolv.com/aquifer-tests/glossary-of-aquifer-testing-terms.htm

Dec 5, 2017 ... Glossary of terms pertaining to aquifer tests including hydraulic properties, aquifers and well geometry. ... E. Effective Porosity: See specific yield. ... Storativity of an unconfined (water-table) aquifer (from Ferris et al. 1962).

https://en.wikipedia.org/wiki/Specific_storage

For unconfined aquifer storativity is approximately equal to the specific yield ( S y {\displaystyle S_{y}} S_{y} ) ... The specific storage is the amount of water that a portion of an aquifer releases from storage, per unit ...

https://geoselim.blogspot.com/2011/08/Specific-Yield-and-Specific-Retention.html

Aug 1, 2011 ... In an aquifer with a water table (unconfined aquifer), the volume of water ... where n is porosity, Sy is specific yield, Sr is specific retention, Vd is ...

http://epsc428.wustl.edu/Lectures/42815L20.pdf

Unconfined Aquifer: aquifer in which the water table forms upper boundary. ... Missouri, Mississippi & Meramec River valleys Hi yields, good quality .... 3) Low Storativity S= Ss*m , dimensionless, where Ss = specific storage (units: m-1).

https://www.sciencedirect.com/topics/earth-and-planetary-sciences/unconfined-aquifer

Apart from the vertical wells other unconfined aquifer hydraulic structures are ... In a confined aquifer, the quantity corresponding to specific yield is called ...

http://www.dwa.gov.za/groundwater/groundwater_dictionary/introduction_specific_yield.htm

Specific yield is a ratio between 0 and 1 indicating the amount of water released due to drainage, from lowering the water table in an unconfined aquifer.

https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2007WR006096

Jan 3, 2009 ... Specific yield (Sy) and temporal changes in aquifer storage are ... of drainage during aquifer tests in heterogeneous unconfined aquifers, which ...

http://www.kgs.ku.edu/HighPlains/atlas/apgengw.htm

Nov 21, 2000 ... Groundwater Storage, Porosity, and Specific Yield: Groundwater occupies ... but for water in unconfined aquifers they are essentially the same.

https://onlinelibrary.wiley.com/doi/abs/10.1002/047147844X.gw1103

Apr 15, 2005 ... Specific Yield (Sy) is the volume of water removed from a unit volume of an unconfined aquifer for a unit drop in water level; this quantity is also ...