=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991 Key West 940/071 RLR(1964) is 9.5m below BM29 =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 29-Jul-1993 Many stations on the Gulf coast have large values for September 1961. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-Jul-1994 For a description of Key West data dating back to 1846, see MAUL, G.A. & MARTIN, D.M. 1993, Sea level rise at Key West, Florida, 1846-1992: America's longest instrument record? Geophysical Research Letters, 20(18), 1955-1958. =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 27-Jul-2011 Data is downloaded directly from the NOAA website. Datum information also downloaded. The NOAA Primary Benchmark is 4580 E 1998 3.116m above TGZ.