Concept information
TERME PRÉFÉRENTIEL
KEMMERER SAMPLER
DÉFINITION
- A Kemmerer Sampler is a device that is usually used to obtain a water sample from a specific depth in lakes or streams. It is less frequently used to sample monitoring wells. First, the supporting cable is marked to identify the depth at which the sample will be taken. As it is lowered, the water passes freely through the body of the sampler. At the designated depth, a weighted messenger is dropped down the cable. When it reaches the sampler, the messenger activates a trip mechanism that closes a plug/stopper at the bottom and top of the sampler thus sealing the water inside.
CONCEPT GÉNÉRIQUE
URI
https://gcmd.earthdata.nasa.gov/kms/concept/983f115b-4f2a-44c6-9737-101377f44fb2
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