Shoemaker, W. Barclay 20210915 Comma-separated values (CSV) Denver, CO U.S. Geological Survey https://doi.org/10.5066/P9XW4RJU Daily measurements of evaporation using the Bowen ratio method were made at USGS station name LZ40 (USGS site number 265405080472100), a platform-based station constructed by the South Florida Water Management District (SFWMD) at the approximate center of Lake Okeechobee, Florida. Meteorological and environmental variables were measured every 30 seconds and averaged at 15-minute resolution, including: water temperature (surface and profile), air temperature, relative humidity, wind speed, and incoming/outgoing short and longwave radiation. Data were collected to provide historical estimates of evaporation - a large component of the hydrologic budget - at Lake Okeechobee, Palm Beach County, Florida. 20200101 20201231 ground condition Complete Annually -80.8264 -80.75 26.9166 26.8833 USGS Thesaurus Evaporation Bowen-ratio USGS Metadata Identifier USGS:6113cb8fd34ed11898f7ee25 Geographic Names Information System (GNIS) Lake Okeechobee Florida none none Shoemaker, W. Barclay Southeast Region: CARIBBEAN-FLORIDA WSC STUDIES SEC Hydrologist mailing and physical

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Davie FL 33314 United States 954-377-5956 bshoemak@usgs.gov Cooperative Funding with the South Florida Water Management District All equipment was new and calibrated at time of installation on 12/12/2012. Water surface temperature data are derived from a four component radiometer (Kipp and Zonen CNR1) and the Stefan Boltzmann equation along with outgoing longwave radiation from the CNR1 sensor. Water profile temperature was monitored at the lake bottom and at heights of 2, 4, 6, 8, 10, 12 and 14 feet above the bottom using Campbell Scientific 107 and 109 temperature probes. Air temperature and relative humidity were monitored using a Vaisala HMP45C sensor. Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. No formal positional accuracy tests were conducted No formal positional accuracy tests were conducted Net radiation was computed as the difference of incoming and outgoing radiation – including the four terms of incoming and outgoing short- and long-wave radiation. Net radiation, water surface and profile temperatures, air temperature, and relative humidity were collected at 15-minute resolution and processed via the Bowen-ratio energy-budget method to compute daily evaporation from Lake Okeechobee in a manner similar to: Sumner, D. M. and Belaineh, G., 2005, Evaporation, Precipitation, and Associated Salinity Changes at a Humid, Subtropical Estuary, Estuaries, v. 28, no.6, p. 844-855. 202006 Point LakeOData2020 Daily values of evaporation and ancillary meteorological data at Lake Okeechobee Data collected and processed by W. Barclay Shoemaker date Date of the measurement in mm/dd/yyyy format Producer defined 1/1/2020 12/31/2020 Unitless SwInRad in watts per square meter Average daily shortwave incoming solar radiation on the lake surface Producer defined 26 341 watts per square meter SwOutRad in watts per square meter Average daily shortwave outgoing solar radiation off the lake surface Producer defined 2 32 watts per square meter LwInRad in watts per square meter Average daily longwave incoming solar radiation on the lake surface Producer defined 303 469 watts per square meter LwOutRad in watts per square meter Average daily longwave outgoing solar radiation of the lake surface Producer defined 383 486 watts per square meter Rn in watts per square meter Average daily net radiation incident on the lake surface Producer defined 1 274 watts per square meter Tair in celsius Average daily air temperature above lake Producer defined 9.5 30.0 degrees Celsius TaMin in celsius Minimum daily air temperature above lake Producer defined 5.0 28.4 degrees Celsius TaMax in celsius Maximum daily air temperature above lake Producer defined 13.9 34.4 degrees Celsius Rhmin in percent Minimum daily relative humidity Producer defined 30 92 percent Rhmax in percent Maximum daily relative humidity Producer defined 76 100 percent Tsurface in Celsius Average daily temperature of the lake water surface Producer defined 13.5 31.1 degrees Celsius Ws5.9m in meters per second Average daily wind speed at a height of about 5.9 meters above the lake surface depending on lake level Producer defined 1.1 10.6 meters per second Evaporation in millimeters per day Average daily evaporation Producer defined 0.00 15.5 millimeters per day Tw(b) in celsius Water temperature at the bottom of the Lake Producer defined 16.4 30.6 degrees Celsius Tw(b+2) in celsius Water temperature two feet above the bottom of the Lake Producer defined 16.1 30.8 degrees Celsius Tw(b+4) in celsius Water temperature 4 feet above the bottom of the Lake. Producer defined 16.1 30.7 degrees Celsius Tw(b+6) in celsius Water temperature 6 feet above the Lake bottom Producer defined 16.1 30.7 degrees Celsius Tw(b+8) in celsius Water temperature 8 feet above the Lake bottom Producer defined 16.2 30.7 degrees Celsius Tw(b+10) in celsius Water temperature 10 feet above the Lake bottom Producer defined 16.3 30.8 degrees Celsius Tw(b+12) in celsius Water temperature 12 feet above the Lake bottom Producer defined 16.3 31.6 degrees Celsius Tw(b+14) in celsius Water temperature 14 feet above the Lake bottom Producer defined 16.2 31.9 degrees Celsius GS ScienceBase USGS mailing and physical

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Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov Although this data set has been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. 20211001 W. Barclay Shoemaker Southeast Region: CARIBBEAN-FLORIDA WSC STUDIES SEC Hydrologist mailing and physical

3321 College Avenue

Davie FL 33314 United States 954-377-5956 bshoemak@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998