PROVISIONAL DATA SUBJECT TO REVISION
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LOCATION.--Lat 40°54'12.8", long
73°32'36.1" referenced to North American Datum of
1983, Nassau County, NY, Hydrologic Unit 02030201, located in
West Harbor Memorial Park.
REVISIONS HISTORY.--Some erroneous phycoerythrin data for the period of Dec. 19, 2023 to Apr. 1, 2024 were removed on Sept. 5, 2024 due to a discovered error in the extremes.
EXTREMES FOR PERIOD OF RECORD.--Maximum elevation, 7.30 ft, Jan. 13, 2024; minimum elevation, about -5.94 ft, Mar. 11, 2024.
PERIOD OF RECORD1.--July 2023 to current year.
PERIOD OF DAILY RECORD1.--WATER TEMPERATURE: July 2023 to current year.
SPECIFIC CONDUCTANCE: July 2023 to current year.
SALINITY: July 2023 to current year.
pH: July 2023 to current year.
DISSOLVED OXYGEN: July 2023 to current year.
TURBIDITY: July 2023 to current year.
CHLOROPHYLL: July 2023 to current year.
PHYCOERYTHRIN: July 2023 to current year.
INSTRUMENTATION1.--A continuous water-quality monitor with water temperature, specific conductance, pH, dissolved oxygen, chlorophyll fluorescence, and phycocyanin fluorescence provides 6-minute-interval readings. Salinity record computed from specific-conductance readings.
EXTREMES FOR PERIOD OF DAILY RECORD1.--WATER TEMPERATURE: Maximum, 29.6°C, July 17, 2023; minimum, -0.3°C, Jan. 22, 2024.
SALINITY: Maximum, 26.0 psu, Aug. 9, 10, 11, 2023; minimum, 19.8 psu, Sept. 30, 2023.
pH: Maximum, 8.4 on several days in February 2024; minimum, 7.1, Aug. 5, 2023.
DISSOLVED OXYGEN: Maximum, 14.9 mg/L, Feb. 5, 2024; minimum, 2.6 mg/L Aug. 24, 2023.
TURBIDITY: Maximum, 69.1 FNU, Aug. 13, 2023; minimum, 1.1 FNU, Oct. 10, 2023, Mar. 19, 2024.
CHLOROPHYLL FLUORESCENCE: Maximum, 94.75 ug/L, Nov. 10, 2023, 26.56 RFU, Nov. 7, 2023; minimum 0.02 ug/L, Jan. 14, 2024, 0.01 RFU, Jan. 14, Mar. 12, 2024.
PHYCOERYTHRIN FLUORESCENCE: Maximum, 267 ug/L, 95.3 RFU, Nov. 15, 2023; minimum, 0.02 ug/L, 0.03 RFU, Jan. 14, 2024.
1 Water-Quality Records
REVISIONS HISTORY.--Some erroneous phycoerythrin data for the period of Dec. 19, 2023 to Apr. 1, 2024 were removed on Sept. 5, 2024 due to a discovered error in the extremes.
EXTREMES FOR PERIOD OF RECORD.--Maximum elevation, 7.30 ft, Jan. 13, 2024; minimum elevation, about -5.94 ft, Mar. 11, 2024.
PERIOD OF RECORD1.--July 2023 to current year.
PERIOD OF DAILY RECORD1.--WATER TEMPERATURE: July 2023 to current year.
SPECIFIC CONDUCTANCE: July 2023 to current year.
SALINITY: July 2023 to current year.
pH: July 2023 to current year.
DISSOLVED OXYGEN: July 2023 to current year.
TURBIDITY: July 2023 to current year.
CHLOROPHYLL: July 2023 to current year.
PHYCOERYTHRIN: July 2023 to current year.
INSTRUMENTATION1.--A continuous water-quality monitor with water temperature, specific conductance, pH, dissolved oxygen, chlorophyll fluorescence, and phycocyanin fluorescence provides 6-minute-interval readings. Salinity record computed from specific-conductance readings.
EXTREMES FOR PERIOD OF DAILY RECORD1.--WATER TEMPERATURE: Maximum, 29.6°C, July 17, 2023; minimum, -0.3°C, Jan. 22, 2024.
SALINITY: Maximum, 26.0 psu, Aug. 9, 10, 11, 2023; minimum, 19.8 psu, Sept. 30, 2023.
pH: Maximum, 8.4 on several days in February 2024; minimum, 7.1, Aug. 5, 2023.
DISSOLVED OXYGEN: Maximum, 14.9 mg/L, Feb. 5, 2024; minimum, 2.6 mg/L Aug. 24, 2023.
TURBIDITY: Maximum, 69.1 FNU, Aug. 13, 2023; minimum, 1.1 FNU, Oct. 10, 2023, Mar. 19, 2024.
CHLOROPHYLL FLUORESCENCE: Maximum, 94.75 ug/L, Nov. 10, 2023, 26.56 RFU, Nov. 7, 2023; minimum 0.02 ug/L, Jan. 14, 2024, 0.01 RFU, Jan. 14, Mar. 12, 2024.
PHYCOERYTHRIN FLUORESCENCE: Maximum, 267 ug/L, 95.3 RFU, Nov. 15, 2023; minimum, 0.02 ug/L, 0.03 RFU, Jan. 14, 2024.
1 Water-Quality Records
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