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Water Level Data from National Tsunami Warning Center Tide Gauges in Alaska and California

browse graphicMap of NTWC Tide Gauge Stations
The National Tsunami Warning Center (NTWC) of the National Weather Service (NWS), an organizational element of NOAA, operates and maintains a network of approximately seven coastal tide gauge stations as part of the NOAA Tsunami Program. The data collected are used to meet tsunami warning responsibilities. Included in this water level collection are preliminary 15-second water levels from six stations in Alaska (9450552: Craig, 9457526: Old Harbor, 9458912: Chignik, 9460261: Shemya, 9460901: Amchitka, 9462693: Akutan) and one in California (9411166: Ventura).
  • Cite as: National Tsunami Warning Center (NTWC). 2016. Water Level Data from National Tsunami Warning Center Tide Gauges in Alaska and California. NOAA National Centers for Environmental Information. doi: 10.25921/23vy-9z62. Accessed [date].
gov.noaa.ncei:NTWC_Waterlevel_Collection
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Search Data
Download Data
  • THREDDS Data Server (download)
    Direct download of netCDF and CSV files; OpenDAP and NetCDF Subset Service endpoints
Distribution Formats
  • NetCDF-4 (Version:4)
  • CSV
Ordering Instructions Contact NCEI for other distribution options and instructions.
Distributor NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact Water Level Data Manager
NOAA National Centers for Environmental Information
haz.info@noaa.gov
Coverage Description NTWC Coastal Tide Gauges
Time Period 2014-08-26 to Present
Spatial Reference System urn:ogc:def:crs:EPSG::4326
Spatial Bounding Box Coordinates
West:174.07
East:-119.27
South:34.25
North:57.20
Spatial Coverage Map
General Documentation
Associated Resources
Publication Dates
  • publication: 2016-08-25
Dataset Progress Status Ongoing - data is continually being updated
Historical archive - data has been stored in an offline storage facility
Data Update Frequency As needed
Purpose This data is available to the public for a wide variety of uses including scientific research and analysis.
Use Limitations
  • The station datums at NTWC tide gauges are not controlled.
Dataset Citation
  • Cite as: National Tsunami Warning Center (NTWC). 2016. Water Level Data from National Tsunami Warning Center Tide Gauges in Alaska and California. NOAA National Centers for Environmental Information. doi: 10.25921/23vy-9z62. Accessed [date].
Cited Authors
  • NOAA National Tsunami Warning Center
Publishers
  • NOAA National Centers for Environmental Information
Theme keywords Global Change Master Directory (GCMD) Science Keywords
  • Earth Science > Oceans > Tides
  • Earth Science > Oceans > Tides > Tidal Currents
  • Earth Science > Oceans > Tides > Tidal Height
  • Earth Science > Oceans > Tides > Tidal Range
  • Earth Science > Oceans > Ocean Waves > Tsunamis
  • Earth Science > Oceans > Coastal Processes > Sea Surface Height
  • Earth Science > Oceans > Coastal Processes > Tidal Height
WMO_CategoryCode
  • oceanography
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Platform keywords Global Change Master Directory (GCMD) Platform Keywords
  • In Situ Land-based Platforms > Ocean Platform/Ocean Stations > Coastal Stations
Instrument keywords Global Change Master Directory (GCMD) Instrument Keywords
  • In Situ/Laboratory Instruments > Gauges > Tide Gauges
Place keywords Global Change Master Directory (GCMD) Location Keywords
  • Continent > North America > United States Of America > Alaska
  • Continent > North America > United States Of America > California
None
  • U.S. Exclusive Economic Zone
  • Coastal United States
  • Coastal U.S. territories
Project keywords Global Change Master Directory (GCMD) Project Keywords
  • NTHMP > National Tsunami Hazard Mitigation Program
None
  • NOAA Tsunami Program
Data Resolution keywords Global Change Master Directory (GCMD) Temporal Data Resolution Keywords
  • 1 second - < 1 minute
Use Constraints
  • 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.
Access Constraints
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Other Constraints Cite as: National Tsunami Warning Center (NTWC). 2016. Water Level Data from National Tsunami Warning Center Tide Gauges in Alaska and California. NOAA National Centers for Environmental Information. doi: 10.25921/23vy-9z62. Accessed [date].
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for:dataset
Processor
  • NOAA National Centers for Environmental Information
Processing Steps
  • Preliminary 15-second water level data are archived on a daily basis in XML format.
Source Datasets
  • NTWC Water Level Data
    • Description of Source: Source Contribution: Preliminary 15-second water level data from all coastal National Tsunami Warning Center stations. Source Type: HTTP Post
    • Temporal extent used: 2014-08-26 to Present
Lineage information for:repository
Processing Steps
  • 2015-04-22T00:00:00 -NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
Acquisition Information (collection)
Platform
  • Coastal Tide Gauge
Operation
  • NOAA Tsunami Program
Last Modified: 2022-06-03
For questions about the information on this page, please email:ncei.info@noaa.gov