In my research area, lot of pond are very old and due to decomposition of organic matter, the depth of pond has going to reduced. If any technique to determine the original depth, please discuss .
Dear Arvind,
The applicable technics depend on the actual depth of the lakes. My suggestion is the application of borings. There are some soil sampler (eg. Piston sampler) available that can gather more or less undisturbed, in situ soil samples even from lake bottoms. In case of shallow water you can manage to prepare the whole profile. In this way it is possible to describe the layers and determine the original depth.
Otherwise in case of deep water you can use remote sensing technics like radars, but these methods are less precise.
https://en.eijkelkamp.com/products/water-bottom-sampling-equipment/Piston-Sampler-set.html
Arvind,
An acoustic sub-bottom profiler can be very accurate (see jpg), but sediments containing high amounts of decomposing organic matter can be charged with biogenic gas, which will create voids in the data. This can obscure or prevent any data from being acquired below the biogenic gas zone. If the pond is shallow, a soil core would probably be your best option.
Dear Gergely Jakab & James A Green
Thank you to showing interest on my question. i'll try these technique.
Regards
Arvind K Swarnakar
- Badges
- Science topic
- Similar topics
- Clinical Pharmacology
- Dosing