San Juan (Puerto Rico) Data Quality Assessment

Quality assessment of sea level data by the TOGA sea level Center/National Oceanographic Data Center Joint Archive for Sea Level

Station San Juan,Puerto Rico Latitude 18° 27.6' N
Country USA Longitude 066° 07.0' W
JASL # 245A Time Meridian 060° W (GMT - 4 hr)
GLOSS # 206 TOGA # None
NODC # 71068601
Contributor: National Ocean Service (NOS), National Ocean. and Atmos. Administration (NOAA), Rockville, Maryland 20852
Originator: Same
Original Data: Digital
Instrument Type: Analog-to-Digital Recorder (ADR)
Digitised Interval: 6 minute
Present Data: Hourly, daily, and monthly values obtained by:
Hourly: Discrete sampling on the hour
Daily: 119-point convolution filter (Bloomfield, 1976) centred on noon applied to the hourly data with respective periods of the 95, 50, and 5% amplitude points at 124.0, 60.2, and 40.2 hours
Monthly: Simple average of all daily values; calculated if 7 or fewer days are missing
Span of Data: 01 January 1985 - 31 December 1990
Gaps > 1 Month: 31 May 1988 - 05 September 1988; 12 October 1988 - 06 March 1989
Time Reference: GMT (hours 00-23)
Space-filler Flag: -9999
Units: Millimetres
Missing Data Flag: 99999
Reference Level: All heights have been referred to the station tide staff zero which is linked to fixed bench marks
Comment: The daily and monthly values do not show any obvious shifts or trends and agree well with Magueyes Island in SW Puerto Rico. The monthly plot reveals a consistent annual signal. The sharp peak on 18 September 1989 is due to Hurricane Hugo.