Hydrogeology 101: Cooper-Jacob

This video is about the Cooper-Jacob (1946) straight-line method of non-steady-state pumping test analysis in confined aquifers. We will look at both the time-drawdown and distance-drawdown methods using the Oude Korendijk data from Kruseman & de Ridder (2000), and how the Transmissivity and Storativity can be calculated manually using formulas, as well as automatically in the Cooper-Jacob XL tool in Excel.

I developed the first version of Cooper-Jacob XL in Ghana back in 2002/2003 with the help of Edwin Dodoo. When Excel removed the feature to move data points in charts, I added the data sliders. The video shows you how to use them to adjust the best fit line to the data.

This is an educational video & part of the Hydrogeology 101 course.
Link to the Cooper-Jacob (1946) paper: https://www.nrc.gov/docs/ML1429/ML142...

Link to the Cooper-Jakob V2 Excel tool: https://bit.ly/2TrucWM