3 record(s) found for principal investigator "Welch, H.E." (multi-year projects are grouped):
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Licence #2549
Principal Investigator: Welch, H.E.
Licensed Year(s): 1980
Summary: A continuation of an experiment on an isolated lake to which methane gas has been added thereby simulating a break in a gas pipeline. This season, the work will concentrate on seeing the effects of artificially added nutrients to the lake. Supplementary water studies and radionuclide level determinations will also continue....


Licence #2452
Principal Investigator: Welch, H.E.
Licensed Year(s): 1979
Summary: A continuation of an experiment on an isolated lake to which methane gas has been added thereby simulating a break in a gas pipeline. This season, the work will concentrate on seeing the effects of artificially added nutrients to the lake....


Licence #2145
Principal Investigator: Welch, H.E.
Licensed Year(s): 1977
Summary: Freshwater research in relation to impacts of various construction projects in the N.W.T....


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