Data Overview
The GLOSS Station Handbook summarizes in tabular form the basic information on tide gauge stations (not all active) in the GLOSS Core network, providing a one-stop shop with links to the databases described below. The latest status of the Core Network is
reported here. The handbook also cross references the different designators used by PSMSL, UHSLC and GLOSS to identify the same station.
Daily mean and Hourly height data from the GLOSS network The Joint Archive for Sea Level (JASL) at UHSLC, and the Delayed Mode Centre at the British Oceanographic Data Centre (BODC) both hold data covering in some cases many decades. The available data lags by two or more years on the present during which time quality control and adjustment to local benchmarks is done. The data are not referred to the RLR reference used by PSMSL. Plots, maps, and quality control information are available.
A subset of the stations provide data within a month to six weeks to the Fast Delivery Center at USHLC. The center makes this data available online in ASCII format and through a DODS (OPeNDAP) server. The earliest data are from 1985. When quality controlled data from JASL become available they replace the original data in the fast dataset.
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Access the Databases
The GLOSS Station Handbook provides a centralized table of GLOSS stations including links to all the databases below:
- University of Hawaii Sea Level Center (UHSLC) "Fast Delivery" sea level station data - This database contains data from stations (station list), mostly included in the GLOSS networks. These stations report in real or near real time. The database contains hourly, daily, and monthly data from 1985 to the present.
- The BODC delayed mode Sea Level Data - The British Oceanographic Date Centre (BODC) continues the assembly, quality control and dissemination of the hourly sea level data set started for WOCE. This work is complementary to that of the UHSLC 'Fast-Delivery' Center and parallels that of JASL below. The database contains hourly height data from tide gauge sites. (map)
- Joint Archive for Sea Level (JASL) Research Database - contains hourly sea level data of research quality - a scientifically valid, well-documented archive of hourly, daily, and monthly sea level values in standardized formats.
- Permanent Service for Mean Sea Level (PSMSL) Database has scientifically valid Annual and Monthly Mean Sea level data corrected as far as possible for benchmark and datum changes. The data referred to RLR are preferred when available. Note the cautionary notes on the use of Metric datasets. A number of datasets extend over a century.
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Data Products
- UHSLC also hosts the JCOMM project Sea Level Program in the Pacific (SL-Pac) and provides in near real-time a series of maps of sea level conditions including anomalies, indices of the equatorial Pacific currents, estimates of the equatorial ridge and trough topography, deviations of sea level, pressure-corrected deviations, and variations in the upper layer volume.
- UHSLC also provides plots of real time data from stations worldwide, mostly with data in the last 10 days, and with a concentration in the Pacific.
Data Flow Information
Latest Data Received by the PSMSL
- The British Oceanographic Data Centre provides summaries of the latest data received by the PSMSL for each station in the GLOSS core network.
Other Information
- Bottom Pressure Measurements:
Global Undersea Pressure Group (GLOUP) has assembled and tidally analyzed the data from hourly bottom pressure records. The original data and analyses are on this site and contribute also to:
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