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

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.

美国海岸与大地测量局（现隶属于美国国家海洋和大气管理局（NOAA）国家海洋服务局）的主要验潮站潮汐观测人员，在20世纪绝大多数时期均常规测量海水温度与密度，部分站点的观测工作甚至早于20世纪。目前已完成26个站点全部可获取观测记录的数字化工作，其余站点或仍留存有未数字化的纸质档案。佛罗里达理工学院的学生承担了核心的数据录入与质量管控工作。本数据集旨在分析海水温度与密度的变化趋势，以增进学界对美国沿岸广阔海域内低频气候变化的科学认知。