NAOS ISLAND

Station Information

Station ID: 581
Latitude: 8.918334
Longitude: -79.55
Coastline code: 840
Station code: 21
Country: PANAMA
Time span of data: 1949 – 1968
Completeness (%): 98
Frequency Code: 24
Date of last update: 01 Jan 1980

Green Arrow: Current Station
Yellow Marker: Neighbouring RLR Station

Please note: In many cases, the station position in our database is accurate to only one minute. Thus, the tide gauge may not appear to be on the coast.

Additional Data Sources (guide to additional data sources)

Fast Delivery Data from UHSLC station 302: hourly and daily
Research Quality Data from UHSLC station 300: hourly and daily
Research Quality Data from UHSLC station 302: hourly and daily

Station Documentation

Link to RLR information.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 08-SEP-95 :
The sea level difference either side of the Panama Canal is approx. 20 cm (higher on the Pacific side) - see for example, Pugh, D.T. 1987, "Tides, surges and mean sea-level", Wiley.
RLR 1964 datum at Balboa is 3.112 m below the "Tide Staff Zero" which is itself 12 feet below Panama Canal Precise Level Datum (PLD). On the Atlantic side, at Coco Solo RLR 1993 is 6.288m below the Tide Staff Zero which is itself 2 feet below PLD there. For the older Cristobal data, RLR 1964 is 6.138 m below the Tide Staff Zero which is itself 2 feet below PLD. From inspection of RLR data and from this information, one can indeed verify that sea level is higher on the Pacific side by about 20 cm. However, the accuracy of the PLD national levelling system is unclear.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-JUN-91 :
Naos Island 840/021 RLR(1964) is 11.6m below BM3
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 26-Jan-2012 :
This is an historic station although still mentioned on the NOAA website there is now very little information regarding the former tide gauge site. Last data received is that for December 1968. Station has been marked 'inactive'.

Data Authority

N.O.A.A. / N.O.S.
N/oes33, Ssmc4, Room 6531
1305 East-West Highway
Silver Spring,
MD 20910
UNITED STATES