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HISTORICAL
ANALYSES
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water resources are found in a variety of forms: lakes, rivers, soil moisture,
and ground water. We study the ways in these resources are related to
the climate of today and our recent past. This research helps us understand
how our water resources may change in response to future climates. |
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The Great
Lakes
- 139 years of Great
Lakes lake level data fom NOAA's National Ocean Service were
studied
- Average lake levels
are not changing
- Annual cycle for
lakes tends to reach peak and minimum about 1 month earlier
now, compared to 1860
- Changes in annual
cycle most prominent in downstream lakes: Ontario (left) and
Erie
More...
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Regional
Modeling
- Combined use of
a biophysical model (IBIS) with hydrologic routing (HyDRA) to
study large scale water resources
- Simulated parts
of the hydrologic cycle not currently observed, e.g. soil moisture
variability (right)
- Regional climate
and the Great Lakes interact to influence runoff both in and
out of the Great Lakes basin.
More...
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Small
Lakes  |
- Analyzed data from
Trout Lake area in Northern Wisconsin, modeled hydrologic balance
- Lake Ice-on period
has decreased in recent years
- Evaporation from
lake highly correlated to water-air temperature difference
- Groundwater recharge
estimates (left) suggest that land cover has a major influence
on the amount of water flowing into lakes.
More...
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