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    • Sea level measured by tide gauges from global oceans as part of the Joint Archive for Sea Level (JASL) since 1846

    Metadata Updated: January 1, 2025

    This collection contains the complete holdings of the Joint Archive for Sea Level (JASL) for hourly and daily data that have been quality controlled, assessed, and documented. Data are given in text files.

    JASL is a collaboration between the University of Hawaii Sea Level Center/Joint Institute for Marine and Atmospheric Research (JIMAR) and the National Centers for Environmental Information (NOAA/NESDIS/NCEI). It continues to acquire, quality control, manage, and distribute sea level data as initiated by the Tropical Ocean Global Atmosphere Program, which ended in 1994. The JASL is a Global Sea Level Observing System archive center and is the largest global collection of quality-controlled hourly sea level. The JASL receives hourly data from regional and national sea level networks. The data are inspected and obvious errors such as data spikes and time shifts are corrected. Gaps less than 25 hours are interpolated. Reference level problems are referred back to the originator. If the originators can not resolve the reference level shift,comparisons with neighboring sites or examination of the hourly residuals may warrant an adjustment. Descriptive station information and quality assessments are prepared. The objective is to assemble a scientifically valid, well-documented archive of hourly and daily sea level values in standardized formats. The JASL set is bi-annually updated and submitted to NCEI and the Permanent Service for Mean Sea Level.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date 2023-10-31T17:34:07Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date January 1, 2025
    Reference Date(s) April 16, 2001 (publication), February 16, 2023 (revision)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NOAA/NESDIS/ncei/accessions

    Other Data Resources

    Graphic Preview

    Preview graphic

    Additional Metadata

    Resource Type Series
    Metadata Date 2023-10-31T17:34:07Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date January 1, 2025
    Reference Date(s) April 16, 2001 (publication), February 16, 2023 (revision)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:JIMAR-JASL
    Access Constraints Cite as: Caldwell, Patrick C.; Merrifield, Mark A.; Thompson, Philip R. (2001). Sea level measured by tide gauges from global oceans as part of the Joint Archive for Sea Level (JASL) since 1846. [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5v40s7w. Accessed [date]., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
    Bbox East Long 180
    Bbox North Lat 78.93
    Bbox South Lat -77.85
    Bbox West Long -180
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Preview graphic
    Graphic Preview File https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:JIMAR-JASL
    Graphic Preview Type PNG
    Harvest Object Id ec34fbeb-cde7-4e06-b684-2015a00a19d5
    Harvest Source Id c084a438-6f6b-470d-93e0-16aeddb9f513
    Harvest Source Title NOAA/NESDIS/ncei/accessions
    Licence accessLevel: Public
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-180.0, -77.85], [180.0, -77.85], [180.0, 78.93], [-180.0, 78.93], [-180.0, -77.85]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 1846-01-01
    Temporal Extent End 2019-07-30

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