San Juan (Puerto Rico) Site History
|Station||San Juan, Puerto Rico|
|Latitude||18° 28.0' N|
|Longitude||066° 07.0' W|
|Time Reference||GMT (00-23 hours)|
|Contributor||(1985-1990) TOGA Sea Level Center
(1991-2000) NOAA/NOS, USA
|Instrument Type||(1985-1990) Float and stilling well gauge, Analog- to-Digital Recorder
(1991-2000) Next Generation Water Level Measurement System, acoustic sensor
|Site of Gauge|
|Observational Periods||1962-1974, 1978-2000 (data available for 1985-2000)|
Tide Gauge Benchmark (TGBM) Description
NOS tidal benchmark survey disk stamped '5371 A 1977' set in the top of a concrete sea wall at the U.S. Coastguard compound.
All heights have been referred to the station Tide Gauge Zero which is linked to fixed bench marks.
|TGBM||5.32 feet above mean lower low water (1960-1978 epoch)|
|TGBM||4.54 feet above mean sea level (1960-1978 epoch)|
|TGBM||3.99 feet above mean high water (1960-1978 epoch)|
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.
The data for 1994-2000 were supplied with heights relative to MLLW. Consequently 975mm was added to refer the data to tide gauge zero.
The data for 1999-2000 were supplied in non-GMT format and had to be shifted into GMT.
|Year||CI (%)||QI (%)||Missing Data||Replaced Gaps
or Bad Data