PROVISIONAL DATA SUBJECT TO REVISION
This station is operated in cooperation
with:
Town of Hempstead Dept.of Conservation and
Waterways
NYS Department of Environmental
Conservation
LOCATION.--Lat 40°35'36", long 73°35'03" referenced to North American Datum of 1927, Nassau County, NY, Hydrologic Unit 02030202, at Town of Hempstead East Marina, 750 ft east of Loop Parkway Bridge, in Point Lookout. Water-quality monitor at site 100 ft north.
PERIOD OF RECORD.--December 1997 to current year. January 1974 to June 1994, in files of Town of Hempstead Department of Conservation & Waterways. Precipitation, wind speed and direction, air temperature, relative humidity, and barometric pressure records for March 1998 to current year, and solar radiation records for August 2004 to current year, are unpublished and available in files of the Geological Survey.
GAGE.--Water-stage recorder. Datum of gage is NGVD of 1929. January 1974 to June 1994, water-stage recorder at site 150 ft northeast.
REMARKS.--Records excellent, except those for Jan. 1 to Mar. 5, Mar. 7-19, May 4 to Aug. 9, Aug. 11 to Sep. 20, and Sep. 29-30, which are good; and those for Aug. 10 and Aug. 27 to Sep. 2, which are fair. Satellite and telephone elevation, precipitation, and wind speed and direction telemeter at station. Telephone telemeter for air temperature, relative humidity, barometric pressure, and solar radiation parameters at station.
PERIOD OF DAILY RECORD1.--
WATER TEMPERATURE: October 2004 to current year.
SALINITY: October 2004 to current year.
DISSOLVED OXYGEN: October 2004 to current year.
TURBIDITY: October 2004 to current year.
CHLOROPHYLL: August 2006 to current year.
REMARKS1.--Telephone telemeter for water temperature, specific conductance, dissolved oxygen, turbidity, and sampling depth parameters at station. Interruptions of record were due to malfunction of water-quality monitor or sensors.
WATER TEMPERATURE: Records excellent.
SALINITY: Records excellent, except those for Oct. 3-18, Nov. 1-23, Dec. 8-19, and Jan. 10-24, which are good.
DISSOLVED OXYGEN: Records excellent, except those for Oct. 1-2, 25-31, Dec. 8-19, 22-24, Jan. 26-27, Mar. 1-13, 25, Apr. 14-15, May 9-12, May 29 to Jun. 2, and Jun. 21-28, which are good; for Oct. 3-9, Nov. 1-6, Dec. 25-27, Jan. 28, Mar. 14-23, 26-27, Apr. 16-18, May 13-17, and Jun. 3-7, which are fair; and those for Oct. 10-16, Nov. 7-13, Dec. 28-31, Jan. 29-30, Mar. 28, Apr. 19-21, May 18-21, and Jun. 8-12, which are poor.
TURBIDITY: Records excellent, except those for Oct. 1, Oct. 25 to Nov. 1, Dec. 22-24, Apr. 24 to May 4, May 12-19, Jun. 1-8, and Sep. 12-16, which are good; for Oct. 2-7, Nov. 2-8, Dec. 25-26, May 20-24, Jun. 9-14, and Sep. 17-21, which are fair; and those for Oct. 8-18, Nov. 9-23, and Dec. 27 to Jan. 3, which are poor.
1 Water-Quality Records
Derived from NY Annual Water-Data Report 2007
Peak Flow and Stage Information
Webcam view of Reynolds Channel Picture updated hourly
Webcam view of
Atlantic Ocean shore
|
Elevation (observed) and tide elevation (predicted) for this station are reported to NGVD 1929. To convert data to NAVD 1988 subtract 1.13 ft. To convert data to MLLW datum add 1.10 ft. These corrections vary from site to site. |
|
NGVD 1929
is the National Geodetic Vertical Datum of 1929, formerly called
"mean sea level" or "Sea Level Datum of
1929." NGVD 1929 was a general adjustment of the first-order
level nets fit to mean sea level at 26 tide gages in the US and
Canada.
NAVD 1988 is the North American Vertical Datum of 1988, which is a geodetic datum derived from a general adjustment of the first-order level nets fit to 1 tide gage in eastern Canada. MLLW is mean lower low water, which is a site-specific datum determined by averaging the lowest of the 2 low tides that occur each day over a 19-year tidal epoch. For tide gages with less than 19 years of record, this datum is estimated by correlation with long-term tide gages. |
Additional sensor graph(s) available (click on graph or sensor name)
Water elevation, astronomical-tide elevation, and residual water level Graph updated every 15 minutes Alternate link to graph |
 Wind speed, wind gust speed, and barometric pressure Graph updated hourly Alternate link to graph |
This station managed by the NY Water Science Center, Coram Program Office.
