Planned maintenance — 18th January 2018 12:00 to 22nd January 2018 09:00 [more]

GLOSS Station Handbook

Station information sheet

GLOSS number246
Station name


Time zone000E, GMT
Latitude (+ve N)38.4167
Longitude (+ve E)-9.2499
Observation period(s)1882-1911, 1914-1915, 1917-1951, 1955-unkown, Acoustic 2003
Responsible countryPortugal
Authority responsible
for tide gauge
Instituto Geografico Portugues, Rua Artilharia 1, 107, P-1099-052 Lisboa, Portugal
GLOSS contactPortugal
Committed to GLOSSYes
Location mapView location map for GLOSS station Cascais
Digital dataYes
Data acquisition rateContinuous analog record, digitised at 60 minute intervals
High frequency data at BODCDownload from BODC   View Cascais site history  
High frequency data at UHSLCDownload from UHSLC   Download documentation qa209a.dmt from UHSLC   Format documentation for UHSLC data
Real-time data availableYes
Tide gauge benchmarksm3 - benchmark bolt at the root of the groin where the tide gauge is located NP1 - benchmark bolt at the entrance of the cidadela de Cascais
Benchmark relationshipsTide gauge zero (TGZ) = Portuguese Hydrographic Institute Chart Datum TGZ = 7.277m below m3 TGZ = 15.437m below NP1
Auxiliary benchmarksm1 is 6.237m above Chart Datum m2 is 6.233m above Chart Datum m4 is 11.454m above Chart Datum m5 is 6.597m above Chart Datum
Data at PSMSL 
Annual MSL (RLR) dataDownload annual MSL (RLR) data for Cascais
Annual MSL (RLR) plotView annual MSL (RLR) plot for Cascais
MSL methodMetode de Hauteurs Reduites
PSMSL code52
Other relevant codesUHSLC 209
Additional information 
Last updated2002-12-11

Related BODC pages

Sea level portal      World Ocean Circulation Experiment (WOCE) — Sea  level
UK Tide Gauge Network     Climate Variability and Predictability (CLIVAR)
GLOSS project page  


Related external links

Global Sea Level Observing System (GLOSS)     Permanent Service for Mean Sea Level (PSMSL)
University of Hawai`i Sea Level Centre (UHSLC)  World Ocean Circulation Experiment (WOCE)


Permanent Service for Mean Sea Level (PSMSL) Global Sea Level Observing System (GLOSS) Station Handbook Intergovernmental Oceanographic Commission (IOC)