Dynamics of the Hydrologic Cycle

Evaporation

Judy Martin

Instrumentation included:

• Class A Evaporation Pan
• Tipping-Bucket Rain Gauge
• Anemometer (recording Maximum Gusts)
• Thermometers
  • Air Temperature (recording Maximum and Minimum, as well as at time of observation)
  • Water Temperature (at time of observation)

In addition, daily values for Hours of Sunlight were obtained from the National Weather Service office in Concord, New Hampshire.

The Station was set up in Harrisville, NH, at 72°00'45" West Longitude, 42&dep;55'34" North Lattitude, and was monitored on a daily basis from July 1, 1995 through September 30, 1995.

The amount of evaporation appears to best correlate with water temperature and hours of sun. There was no apparent correlation with wind.