USGS Water-Year Summary 2024
301849088350000 MISSISSIPPI SOUND AT USGS ROUND ISLAND LIGHT, MS
LOCATION - Lat 30°18'29", long 88°35'02" referenced to North American Datum of 1983, Jackson County, MS, Hydrologic Unit 03170009, St. Stephens Meridian, on the USGS Round Island Light platform, in the Mississippi Sound.
SURFACE-WATER RECORDS
PERIOD OF RECORD -
GAGE HEIGHT: January 2009 to current year.
COOPERATION - This monitoring station is operated in cooperation with the Mississippi Department of Marine Resources.
EXTREMES FOR PERIOD OF RECORD - GAGE HEIGHT: Maximum recorded, 7.48 ft, Aug. 29, 2012, but may have been higher during periods of instrument malfunction; minimum recorded, -1.13 ft, Dec. 13, 2010, but may have been lower during periods of instrument malfunction.
WATER-QUALITY RECORDS
PERIOD OF RECORD - January 2009 to current year.
PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: January 2009 to current year.
WATER TEMPERATURE: January 2009 to current year.
INSTRUMENTATION - Submersible transducer and data-collection platform since January 2009. Datum of gage is assumed. Water-quality monitor since January 2009.
EXTREMES FOR PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: Maximum recorded, 61,600 microsiemens, Aug. 5, 2009, but may have been higher during periods of missing data; minimum recorded, 157 microsiemens, Mar. 31, 2012, but may have been lower during periods of missing data.
WATER TEMPERATURE: Maximum recorded, 34.1 °C, Aug. 6, 2011, but may have been higher during periods of missing data; minimum recorded, 4.5 °C, Jan. 10, 2010, but may have been lower during periods of missing data.