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Comparison of evaporation at two central Florida lakes,
April 2005–November 2007

Open-File Report 2015-1075

Prepared in cooperation with the Southwest Florida Water Management District
By:
https://doi.org/10.3133/ofr20151075

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Abstract

Evaporation from April 2005 through October 2007 at two central Florida lakes, one close to the Gulf of Mexico and one in the center of the peninsula, was 4.043 and 4.111 meters (m), respectively; evaporation for 2006 was 1.534 and 1.538 m, respectively. Although annual evaporation rates at the two lakes were similar, there were monthly differences between the two lakes because of changes in stored heat; the shallower Lake Calm (mean depth 3 m) stored less heat and exchanged heat more rapidly than the deeper Lake Starr (mean depth 5 m).

Both lakes are seepage lakes (no surface-water inflow or outflows) that are dependent on groundwater inflow from their basins to offset an atmospheric deficit, because long-term rainfall in this area is less than evaporation. The Lake Starr basin, where sandy, well-drained ridges surround the lake, has a greater capacity to store infiltrating rain than the Lake Calm basin, which is flat and has poorly drained soils. The storage capacities of the basins affect groundwater exchange with the lakes. Rainfall and net groundwater exchange, which is related to basin characteristics, varied more between these two lakes than did evaporation during this study.

Suggested Citation

Swancar, Amy, 2015, Comparison of evaporation at two central Florida lakes, April 2005–November 2007: U.S. Geological Survey Open-File Report
2015–1075, 16 p., http://dx.doi.org/10.3133/ofr20151075.

ISSN: 2331-1258 (online)

Study Area

Table of Contents

  • Abstract
  • Introduction
  • Methods
  • Results
  • Discussion
  • Conclusions
  • References Cited

Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Comparison of evaporation at two central Florida lakes,
April 2005–November 2007
Series title:
Open-File Report
Series number:
2015-1075
DOI:
10.3133/ofr20151075
Year Published:
2015
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
FLWSC-Tampa
Description:
Report: iv, 16 p.; Appendix 1
Time Range Start:
2005-04-01
Time Range End:
2007-11-01
Country:
United States
State:
Florida
County:
Hillsborough County, Polk County
Other Geospatial:
Lake Calm, Lake Starr
Online Only (Y/N):
Y
Additional Online Files (Y/N):
Y