DAVAO, DAVAO GULF

Station Information

Station ID: 537
Latitude: 7.083333
Longitude: 125.633333
GLOSS ID: 71
Coastline code: 660
Station code: 121
Country: PHILIPPINES
Time span of data: 1948 – 2014
Completeness (%): 79
Frequency Code: 24
Date of last update: 01 Dec 2015

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.

Station Documentation

Link to RLR information.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-JUN-91 :
Davao 660/121 RLR(1969) is 9.0m below BM11
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 17-JUN-93 :
December 1958 for Davao is anomalously low.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 14-Oct-2010 :
The first mention of datum for Davao is in a letter dated 16.03.1959 where the datum is said to be 13.01ft relative to BM 4. A letter dated 17.12.1987 gives a datum of BM 11 3.861 relative to datum TSO 1947. Throughout the names BM 1 and BM 11 seem to be inter-changeable.Data for 1988-1992 BM 1/11 3.852m above TSO 1947. In 1993 there is a reference to BM 8 3.446m relative to TSO 1947.There is no data for Davao 1994-2002 as the data is either very poor quality or missing.From 2003 data onwards benchmark is BM 18 4.849m above TSO 1947. Occasionally
this is rounded to 4.85m.Davao was made RLR in 2010 Gauge type is SUTRON
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 27-Feb-2012 :
The data from the gauges re-instatement is possibly suspect. However, the remoteness of the Philippine stations makes it difficult to confirm this.The relationship between BM 18 and TSO 1947 is now given as 5.746m

Data Authority

National Mapping and Resource Information Authority
Hydrography Department
421 Barraca St,
San Nicolas 1010
Manila
PHILIPPINES