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Monthly and annual mean seawater temperature, salinity and density from 26 tide gauge sites during 1855-1993 (NCEI Accession 0000817)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: October 13, 2025 | Last Modified: 2015-08-21T00:00:00.000+00:00
Tidal observers at primary tide gauges of the United States Coast and Geodetic Survey (now the NOAA National Ocean Service) routinely measured seawater temperature and density throughout most of the 20th century with select sites well before. All available records for 26 sites have been digitized, although more paper file records may still exist for others. Students at Florida Institute of Technology provided the key entry and quality control. The purpose was to study trends in sea water temperature and density in support of increasing the scientific understanding of low-frequency changes across a wide spatial domain of the coastal United States.

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0000817 SALINITY WATER DENSITY WATER TEMPERATURE bucket hydrometer thermometer physical surface measurements FIXED PLATFORM OF UNITED STATES NOAA Office of Coast Survey Florida Institute of Technology National Water Level Observation Network (NWLON) Coastal Waters of Gulf of Mexico Coastal Waters of Southeast Alaska and British Columbia Coastal Waters of Western U.S. North American Coastline-North North American Coastline-South oceanography DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NOS/OCS > Office of Coast Survey, National Ocean Service, NOAA, U.S. Department of Commerce EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > DENSITY EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY USA Tide Stations HYDROMETERS > HYDROMETERS THERMOMETERS > THERMOMETERS FIXED OBSERVATION STATIONS > FIXED OBSERVATION STATIONS OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN Astoria, Oregon Atlantic City, New Jersey Baltimore, Maryland Boston, Massachusetts Breakwater, Delaware Cedar Keys, Florida Charleston, South Carolina Continental United States coasts Daytona Beach, Florida Eastern United States coast Eastport, Maine Galveston, Texas Ketchikan, Alaska Key West, Florida Kodiak Island (Women's Bay), Alaska La Jolla, California Los Angeles Harbor, California New York (The Battery), New York Pensacola, Florida Philadelphia, Pennsylvania Port Townsend, Washington Portland, Maine San Francisco, California Sandy Hook, New Jersey Seattle, Washington Seward, Alaska Sitka, Alaska United States Alaska coast United States Gulf coast Western United States coast

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