Hello,
I have a technical question, I want to create a groundwater table map for a mountainous area characterized by a discontinuous aquifer. the main issue I'm facing is the lack of borewell data (I have a few numbers of wells data with information on depth to groundwater table). However, this region is characterized by numerous springs which I know the coordinates.
Is it possible to merge the spring data with the wells to create a groundwater table map of this region?
Thank you for your consideration
If you have the aquifer data and the water table data, then you need to find only the elevation data with respect to MSL, to construct water table map. As the springs are the meeting point of water table with the ground surface, you can certainly use the origin point of spring as the water table elevation.
Really, it's easy, if you have at least three wells to obtain water table data (masl) you can draw a first map. The springs are the base of the aquifer, so coordinates could be obtained to generate a shape. Connect both data and you can create a map of the water table, but if you want to be precise, you must review a geological map to delimit the aquifer.
In continuation of NB Narasimha Prasads answers, it depends on the precision, whether it matters, but some springs may have higher pressure than the level at which they emanate - the difference could be small or larger (probably not more than some meters - depends on the geology. Likewise the gradient moving away from the spring could be steep and non-linear - again depending on the geology.
I fully agree with Dr. Jacobson. While answering I considered the aquifer as unconfined, typical of fractured hard rocks. It is important to know the hydraulic property of the aquifer existing in the region such as unconfined, semi-condinfined or confined, which in turn throw light on the pressure condition of the groundwater.
- Badges
- Science topic
- Similar topics
- Mathematics
- Algebra
- Matrix