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For moisture content measurements, we collect samples of sand from
the ground surface (top 1-2 cm) at beach and dune locations. When
the ground is frozen, we use a hammer to chip off pieces of the
surface for analysis.
The samples are stored
in moisture tins and brought to the lab where they are weighed,
dried in an oven, and weighed again. The change in weight is the
amount of water that was present in the sample. We report the moisture
content as % dry weight. |
Above: Surface
sediment samples are collected in tins from different locations
such as
the wet and dry areas in this photo.(Hoffmaster State Park in January
2003).
Weighing a dried sample in the lab at Calvin College.
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