Scientific Investigations Report 2006-5252
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006-5252
Table 3. Description of data, collected at four floating instrumented platforms, used to compute evaporation from Lake Mead, Arizona and Nevada, 1997–99.
[Symbol: –, no remark]
| Type of measurement | Instrument used | Associated energy-budget term | Remarks |
|---|---|---|---|
| Net radiation | Net radiometer | Net radiation | – |
| Air temperature | Temperature-humidity probe | Bowen ratio | Measured 6.6 feet above the water surface. |
| Relative humidity | Temperature-humidity probe | Bowen ratio | Measured 6.6 feet above the water surface. |
| Water-surface temperature | Temperature probe | Bowen ratio, latent heat of vaporization | – |
| Water temperature below the surface | Temperature probe | Change in energy stored in water | Measured 3.3, 6.6, and 9.9 feet below surface or 6.6, 13.2, and 19.8 feet below water surface. |
| Wind speed | Anemometer | None | Measured 6.6 feet above the water surface. |
| Wind direction | Wind monitor | None | Measured 13.2 feet above the water surface, except 33.0 feet at Sentinel Island. |
U.S.
Department of the Interior | U.S. Geological
Survey
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