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Station name |
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Date and time |
Water Level/Flow Parameters |
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Depth to water level, ft below land surface |
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Direction of stream flow, magnetic azimuth, degrees |
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Discharge, ft³/day |
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Discharge, m³/s |
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Discharge, instantaneous, ft³/s |
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Discharge, cumulative, acre-feet |
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Elevation above NGVD 1929, ft |
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Elevation above NGVD 1929, m |
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Elevation above NGVD 1929, m |
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Elevation of reservoir water surface above datum, ft |
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Datum offset, elevation of water leveling point in reference to established datum, feet |
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Water surface elevation difference between two locations,ft |
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Difference between observed and predicted water surface elevation, ft |
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Flow rate, instantaneous, Mgal/d |
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Flow rate, instantaneous, gal/min |
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Flow rate of well, gal/min |
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Flow total during composite period, thousands of gallons |
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Gage height, above datum, m |
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Gage height, above datum, meters |
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Gage height, ft |
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Groundwater level above NGVD 1929, ft |
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Groundwater level above NAVD 1988, ft |
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Groundwater level relative to Mean Sea Level (MSL), ft |
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Groundwater level above Guam Vertical Datum of 1963 (retired in 2003), ft |
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Groundwater level above Guam Vertical Datum of 2004, ft |
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Groundwater level above Local Hawaiian Datum, ft |
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Groundwater level above Northern Marianas Vertical Datum of 2003, ft |
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Groundwater level above American Samoa Datum of 1962 (retired in 2001), ft |
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Groundwater level above American Samoa Vertical Datum of 2002, ft |
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Water level elevation above NGVD 1929, corrected for barometric pressure, ft |
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Lake or reservoir water surface elevation above NAVD 1988, ft |
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Lake or reservoir water surface elevation above NGVD 1929, ft |
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Lake or reservoir water surface elevation above NGVD 1929, m |
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Lake or reservoir elevation above International Great Lakes Datum (IGLD), ft |
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Lake or reservoir elevation above New York State Barge Canal Datum (NYBCD), ft |
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Lake or reservoir elevation above United States Bureau of Reclamation Klamath Basin (USBRKB) Datum, ft |
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Long-term mean daily streamflow, ft³/s |
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Long-term median daily streamflow, ft³/s |
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Physical Marsh mat (floating vegetation) elevation above NAVD 1988, ft |
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Physical Water level above marsh, ft |
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Mean depth of stream, ft |
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Pond storage, gal |
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Reservoir storage, total pool, percent of capacity |
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Reservoir storage, live pool, percent of capacity |
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Reservoir storage, Mgal |
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Reservoir storage, million cubic feet |
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Reservoir storage, thousand acre feet |
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Reservoir storage, acre-ft |
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Stream stage, m |
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Stream velocity, ft/s |
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Mean Stream velocity from field sensor, ft/s |
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Mean Stream velocity, ft/s |
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Stream velocity, m/s |
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Stream water level elevation above NAVD 1988, in ft |
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Stream water level elevation above NGVD 1929, in ft |
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Streamflow, ft³/s |
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Streamflow, tidally filtered, ft³/s |
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Streamflow, gal/min |
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Streamflow, m³/s |
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Tidal elevation, NOS-averaged, NAVD88, feet |
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Tidal water level, NOS-averaged, distance from measuring point to water surface, feet |
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Tide Stage, code |
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Tide stage, above datum, ft |
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Estuary or ocean water surface elevation above NAVD 1988, ft |
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Estuary or ocean water surface elevation above NGVD 1929, ft |
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Velocity at point in stream, ft/s |
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Water level, depth below measuring point, ft |
Water Quality Parameters |
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Acifluorfen, water, filtered, recoverable, µg/L |
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Ammonia plus organic nitrogen, water, unfiltered, mg/L as N |
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Ammonia plus organic nitrogen, water, unfiltered, pounds of nitrogen per day |
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Ammonia, water, dissolved, pounds per day as nitrogen |
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Ammonia, water, filtered, mg/L as N |
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Ammonia, water, unfiltered, pounds of nitrogen per day |
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Ammonia, water, unfiltered, field, mg/L as nitrogen |
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Ammonia, water, unfiltered, mg/L as NH4 |
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Calcium, water, filtered, mg/L |
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Calcium, water, filtered, estimated by regression equation, mg/L |
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Carbon dioxide, water, dissolved, at the water surface, ppm by volume of dissolved gases |
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Chloride, water, dissolved, tons per day |
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Chloride, water, filtered, estimated by regression equation, mg/L |
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Chloride, water, filtered, mg/L |
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Chloride, water, unfiltered, mg/L |
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Chlorine (total residual), water, unfiltered, mg/L |
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Colored dissolved organic matter, water, filtered, field, single band excitation, fluorescence emission, ppb QSE |
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Colored dissolved organic matter (CDOM), water, in situ, fluorometric method, relative fluorescence units (RFU) |
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Chlorophyll a, estimated, water, in-situ, in-vivo fluorescence, RFU |
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Chlorophyll a, estimated, water, in-situ, in-vivo fluorescence, concentration estimated from reference material, µg/L |
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Chlorophyll a, modeled, water, in-situ, in-vivo fluorescence, concentration modeled from field samples analyzed by extraction, µg/L |
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Chlorophyll a, fluorometric method, corrected, water, µg/L |
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Chlorophyll a, phytoplankton, chromatographic-fluorometric method, µg/L |
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Chlorophyll a, water, unfiltered, trichromatic method, uncorrected, µg/L |
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Chlorophyll a, water, in situ, in vivo fluorescence,µg/L |
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Chlorophyll, total, phytoplankton, spectrophotometric method, uncorrected, µg/L |
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Chlorophyll, total, water, fluorometric, 650-700 nanometers, in-situ sensor, µg/L |
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Chlorophyll, total, water, in situ, fluorometric, 650-700 nanometers, relative fluorescence units (RFU) |
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Chlorophyll a, total, in situ, fluorescence excitation at 370, 470, 525, 570, 590, 610 nm, fluorescence emission at 700 nm with correction for CDOM, ug/L |
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Chlorophyll a, green algae, in situ, fluorescence excitation at 370, 470, 525, 570, 590, 610 nm, fluorescence emission at 700 nm with correction for CDOM, ug/L |
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Chlorophyll a, cyanobacteria, in situ, fluorescence excitation at 370, 470, 525, 570, 590, 610 nm, fluorescence emission at 700 nm with correction for CDOM, ug/L |
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Chlorophyll a, cryptophytes, in situ, fluorescence excitation at 370, 470, 525, 570, 590, 610 nm, fluorescence emission at 700 nm with correction for CDOM, ug/L |
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Chlorophyll a, diatoms and dinoflagellates, in situ, excitation at 370, 470, 525, 570, 590, 610 nm, fluorescence emission at 700 nm with correction for CDOM, ug/L |
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Chlorophylls, water, in situ, fluorometric method, excitation at 470 +-15 nm, emission at 685 +-20 nm, ug/L |
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Chlorophylls, water, in situ, fluorometric method, excitation at 470 +-15 nm, emission at 685 +-20 nm, relative fluorescence units, RFU |
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Colored dissolved organic matter (CDOM), in situ, fluorescence excitation at 370, 470, 525, 570, 590, 610 nm, fluorescence emission at 700 nm, mg/liter |
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Colored dissolved organic matter (CDOM), water, in situ, single band excitation, fluorescence emission, ppb QSE |
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Cyanobacteria (blue-green algae), water, in situ, phycocyanin, IVF (IVFU) |
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Dissolved organic carbon, water, in situ, estimated, mg/L |
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Dissolved oxygen, water, unfiltered, %saturation |
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Dissolved oxygen, water, unfiltered, mg/L |
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Elevation of sample, ft |
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Fluoride, water, filtered, mg/L |
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Fluorescence transmission (transparency to fluorescence) at 700 nm, percent |
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Iron, water, filtered, µg/L |
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Magnesium, water, filtered, mg/L |
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Mercury, water, unfiltered, recoverable, µg/L |
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Nitrate plus nitrite, water, total, tons per day as nitrogen |
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Nitrate plus nitrite, water, unfiltered, pounds of nitrogen per day |
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Nitrate, water, filtered, mg/L as N |
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Nitrate, water, unfiltered, field, mg/L |
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Nitrate, water, unfiltered, field, mg/L as N |
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Nitrate, water, unfiltered, mg/L |
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Nitrate, water, unfiltered, mg/L as N |
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Nitrite plus nitrate, water, dissolved, lb/d as N |
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Nitrite plus nitrate, water, filtered, mg/L as N |
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Nitrate plus nitrite, water, in situ, mg/L as N |
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Nitrite plus nitrate, water, unfiltered, mg/L as N |
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Nitrite, water, in situ, µmol/L |
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Nitrite, water, in situ, mg/L as N |
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Inorganic nitrogen, water, dissolved, calculated as NH3+NO2+NO3, mg/L as N |
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Inorganic nitrogen, water, dissolved, calculated as NH3+NO2+NO3, tons/day as N |
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Organic carbon, water, unfiltered, mg/L |
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Organic nitrogen, water, unfiltered, pounds of nitrogen per day |
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Orthophosphate, water, unfiltered, mg/L as phosphorus |
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Orthophosphate, water, dissolved, pounds per day |
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Orthophosphate, water, unfiltered, pounds per day |
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Orthophosphate, water, filtered, field, mg/L |
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Orthophosphate, water, filtered, mg/L as phosphorus |
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Orthophosphate, water, in situ, mg/L as phosphorus |
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Oxidation reduction potential, mV |
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PCBs, water, unfiltered, recoverable, grams per day |
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pH, water, unfiltered, field, standard units |
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pH, water, unfiltered, laboratory, standard units |
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Phosphate, water, unfiltered, mg/L |
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Phosphorus, water, dissolved, pounds per day |
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Phosphorus, water, unfiltered, mg/L as phosphorus |
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Phosphorus, water, unfiltered, pounds per day |
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Phycocyanins (cyanobacteria), water, in situ, fluorometric method, excitation at 590 +-15 nm, emission at 685 +-20 nm, micrograms per liter,ug/l |
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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 |
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Residue, dissolved, water, filtered, estimated by regression equation, mg/L |
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Residue, total nonfilterable, mg/L |
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Residue, water, dissolved, tons per day |
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Residue, water, filtered, sum of constituents, mg/L |
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Rhodamine WT, water, unfiltered, recoverable, µg/L |
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Salinity, water, unfiltered, mg/mL at 25 °C |
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Salinity, water, unfiltered, parts per thousand |
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Salinity, water, unfiltered, practical salinity units at 25 °C |
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Sodium adsorption ratio, water, number |
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Sodium adsorption ratio, water, unfiltered, estimated by regression equation, number |
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Sodium, water, filtered, mg/L |
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Sodium, water, filtered, estimated by regression equation, mg/L |
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Sodium, water, filtered, tons/d |
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Specific conductance, water, unfiltered, µS/cm at 25 °C |
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Specific conductance, water, unfiltered, laboratory, µS/cm at 25 °C |
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Specific conductance, non-temperature corrected, water, unfiltered, µS/cm |
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Suspended sediment concentration, mg/L |
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Suspended sediment concentration, water, unfiltered, estimated by regression equation, mg/L |
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Bedload sediment discharge, tons/d |
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Suspended sediment discharge, tons/d |
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Suspended sediment load, water, unfiltered, computed, the product of regression-computed suspended sediment concentration and streamflow, tons/d |
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Suspended solids, dried at 105 degrees Celsius, water, unfiltered, tons/d |
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Total nitrogen, water, unfiltered, pounds per day |
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Total sediment discharge, tons/d |
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Temperature, water, °C |
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Temperature, water, °F |
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Total nitrogen, water, unfiltered, mg/L |
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Total partial pressure of dissolved gases, water, unfiltered, mmHg |
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Total partial pressure of dissolved gases, water, unfiltered, percent of saturation |
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Turbidity, water, unfiltered, broad band light source (400-680 nm), detection angle 90 +/- 30 degrees to incident light, nephelometric turbidity units (NTU) |
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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +/-2.5 degrees, FNU |
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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detector angles at 90 +/- 2.5 degrees and 30 +/- 15 degrees, ratiometric, FBRU |
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Turbidity, water, unfiltered, Jackson Turbidity Units |
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Turbidity, water, unfiltered, NTU |
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Turbidity, water, unfiltered, field, NTU |
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Turbidity, water, unfiltered, monochrome near infra-red LED light source, 780-900 nm, detectors at multiple angles including 90 +-2.5 degrees, ratiometric correction, FNRU |
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Turbidity, water, unfiltered, monochrome near infra-red LED light source, 780-900 nm, detection angle 0 degrees to incident light (backscatter), FBU |
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Turbidity, water, unfiltered, monochrome near infra-red LED light source, 780-900 nm, multiple beam, detectors at multiple angles including 90 degrees, FNMU |
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Type of quality assurance data associated with sample, code |
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Volume of water filtered, L |
Meteorological Parameters |
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Barometric pressure, mmHg |
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Barometric pressure, not corrected to sea level, mbar |
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Barometric pressure, uncorrected, kPa |
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Barometric pressure, uncorrected, inHg |
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Incident solar radiation intensity, (cal/cm²)/d |
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Net radiation (net solar + net long wave radiation), watts per square meter |
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Net solar radiation, W/m² |
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Photosynthetically active radiation (average flux density on a horizontal surface during measurement interval), µmol of photons/m²/s |
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Precipitation, intensity at given time, location 1, inches per hour |
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Precipitation, cumulative, inches |
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Precipitation total for defined period, in |
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Precipitation, duration of storm event, minutes |
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Precipitation, in |
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Precipitation, mm ( sites)
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Precipitation, total, in ( sites)
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Relative humidity, percent |
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Physical Solar radiation (average flux density on a horizontal surface during measurement interval), kilowatts/m² |
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Solar radiation, (average flux density on a horizontal surface during measurement interval), W/m² |
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Solar radiation, (total flux density on a horizontal surface during measurement interval), megajoules/m² |
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Solar radiation, downward intensity, (cal/cm²)/min |
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Solar radiation, net, (cal/cm²)/min |
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Snow depth, feet |
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Snow depth, meters |
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Temperature, air, °C |
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Temperature, air, °F |
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Temperature, snow, °C |
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Total solar radiation (direct + diffuse radiation on a horizontal surface), watts/m² |
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Wind direction, degrees clockwise from north |
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Wind gust direction, air, degrees clockwise from true north |
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Wind gust speed, air, kn |
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Wind gust speed, air, mph |
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Wind speed, kn |
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Wind speed, m/s |
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Wind speed, mph |