the reporter, landuse planner, and water quality analyst to discuss your
responsibilities and expertise.
Agree on a
storm date to investigate based on the dates suggested by your teacher.
Discuss the strategies you will use to collect your data.
details about the major rainfall that occurred over the lake you are
studying (at least one inch of rain fell during a period of 24 hours
or less). Potentially useful websites are: The University of Minnesotas
Climatology Working Group website at http://climate.umn.edu/climatology.htm
and the NOAA National Data Center at http://www.nndc.noaa.gov/cgi-bin/nndc/buyOL-002.cgi.)
following questions using the weather data available via the Internet.
you identify the approximate starting time and ending time for the
- What was the total amount of rain that fell?
- Is there any evidence that winds were associated with the storm?
- If there were winds, what direction were they from and what was the maximum
a strategy for calculating the total amount of water that fell directly
on the land in the watershed
and for calculating the total amount that fell directly on the lake.
Express these as a ratio, watershed rainfall: lake rainfall, using appropriate
units of measure.
the combined watershed and lake rainfall. Express this as a percentage
of the total volume of the lake.
If the lake
was thermally stratified at the time of the rainstorm, would your calculations
your group reporter has the information needed for the final report.