| Water Level/Flow Parameters |
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Reservoir storage, acre-ft (23 sites) |
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Flow rate of well, gal/min (2 sites) |
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Streamflow, ft³/s (629 sites) |
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Elevation of reservoir water surface above datum, ft (2 sites) |
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Gage height, ft (651 sites) |
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Streamflow, gal/min (2 sites) |
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Groundwater level above NAVD 1988, ft (398 sites) |
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Lake or reservoir water surface elevation above NGVD 1929, ft (29 sites) |
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Lake or reservoir water surface elevation above NAVD 1988, ft (28 sites) |
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Stream water level elevation above NGVD 1929, in ft (3 sites) |
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Stream water level elevation above NAVD 1988, in ft (433 sites) |
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Depth to water level, ft below land surface (467 sites) |
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Streamflow, tidally filtered, ft³/s (61 sites) |
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Mean Stream velocity from field sensor, ft/s (13 sites) |
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Mean Stream velocity, ft/s (69 sites) |
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Water level elevation above NAVD 1988, corrected for barometric pressure, ft (3 sites) |
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Evapotranspiration total, mm (2 sites) |
| Water Quality Parameters |
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Temperature, water, °C (268 sites) |
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Specific conductance, water, unfiltered, µS/cm at 25 °C (155 sites) |
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Dissolved oxygen, water, unfiltered, mg/L (93 sites) |
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Dissolved oxygen, water, unfiltered, %saturation (32 sites) |
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pH, water, unfiltered, field, standard units (78 sites) |
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Salinity, water, unfiltered, parts per thousand (21 sites) |
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Colored dissolved organic matter (CDOM), water, in situ, single band excitation, fluorescence emission, ppb QSE (28 sites) |
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Chlorophyll a, estimated, water, in-situ, in-vivo fluorescence, RFU (12 sites) |
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Chlorophyll a, estimated, water, in-situ, in-vivo fluorescence, concentration estimated from reference material, µg/L (36 sites) |
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Phycocyanins (cyanobacteria), water, in situ, fluorometric method, excitation at 590 +-15 nm, emission at 685 +-20 nm, relative fluorescence units, RFU (3 sites) |
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Colored dissolved organic matter (CDOM), water, in situ, fluorometric method, relative fluorescence units (RFU) (1 sites) |
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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +/-2.5 degrees, FNU (138 sites) |
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Residue, water, filtered, sum of constituents, mg/L (1 sites) |
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Suspended sediment particles between 0.50 to 16.00 microns, water, unfiltered, computed by regression equation, count/L (1 sites) |
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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 135-180 degrees, SDVB (SBU) (6 sites) |
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Salinity, water, in situ, tidally filtered, practical salinity units at 25 °C (11 sites) |
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Suspended sediment concentration, mg/L (7 sites) |
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Suspended sediment load, water, unfiltered, computed, the product of regression-computed suspended sediment concentration and streamflow, tons/day (4 sites) |
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Suspended sediment concentration, water, unfiltered, at a fixed point in stream, estimated by a regression equation with turbidity, mg/L (6 sites) |
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Bedload transport rate of coarse fraction greater than 8 mm, computed by regression equation, Mg/day (1 sites) |
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Salinity, water, unfiltered, practical salinity units at 25 °C (21 sites) |
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Nitrate plus nitrite, water, in situ, mg/L as N (24 sites) |
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Suspended sediment concentration, water, unfiltered, estimated by regression equation, mg/L (32 sites) |
| Meteorological Parameters |
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Temperature, air, °C (14 sites) |
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Temperature, air, °F (2 sites) |
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Barometric pressure, mmHg (5 sites) |
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Wind speed, mph (2 sites) |
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Wind direction, degrees clockwise from north (4 sites) |
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Precipitation, total, in (49 sites) |
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Relative humidity, percent (15 sites) |
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Precipitation total for defined period, in (4 sites) |
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Wind gust speed, air, mph (2 sites) |
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Barometric pressure, uncorrected, kPa (6 sites) |
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Total solar radiation (direct + diffuse radiation on a horizontal surface), watts/m² (1 sites) |
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Net solar radiation, W/m² (5 sites) |
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Wind speed, m/s (7 sites) |
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Atmospheric water vapor pressure, calculated, kPa (6 sites) |
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Precipitation, cumulative, inches (1 sites) |
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Precipitation, cumulative, mm (1 sites) |
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Cosmic ray neutron, count, count/hr (1 sites) |
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Barometric pressure, not corrected to sea level, mbar (1 sites) |