Deep-Ocean Assessment and Reporting of Tsunamis (DART(R))
Time-series showing tsunami signal
As part of the U.S. National Tsunami Hazard Mitigation Program (NTHMP), the Deep Ocean Assessment and Reporting of Tsunamis (DART(R)) Project is an ongoing effort to maintain and improve the capability for the early detection and real-time reporting of tsunamis in the open ocean. DART(R) stations have been sited in regions with a history of generating destructive tsunamis to ensure early detection of tsunamis and to acquire data critical to real-time forecasts. DART(R) systems consist of an anchored seafloor bottom pressure recorder (BPR) and a companion moored surface buoy for real-time communications. An acoustic link transmits data from the BPR on the seafloor to the surface buoy. The data are then relayed via an Iridium satellite link to ground stations, which demodulate the signals for immediate dissemination to NOAA's Tsunami Warning Centers, NDBC, and PMEL. The National Centers for Environmental Information (NCEI, formerly the National Geophysical Data Center--NGDC) serves as the archive center for this data and provides the historical data to users.
- Cite as: National Oceanic and Atmospheric Administration (2005): Deep-Ocean Assessment and Reporting of Tsunamis (DART(R)). NOAA National Centers for Environmental Information. doi:10.7289/V5F18WNS [access date]
Search Data |
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Download Data |
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Distribution Formats |
- netCDF (Version: 4)
- OPeNDAP
- Tab-delimited File
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Ordering Instructions |
Contact NCEI for other distribution options and instructions. |
Distributor |
NOAA National Centers for Environmental Information ncei.info@noaa.gov
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Dataset Point of Contact |
NOAA National Centers for Environmental Information ncei.info@noaa.gov
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Dataset Point of Contact |
Water Level Data Manager NOAA National Centers for Environmental Information haz.info@noaa.gov
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Coverage Description |
U.S. DART Network |
Time Period |
1983-10-19 to Present |
Spatial Reference System |
urn:ogc:def:crs:EPSG::4326 |
Spatial Bounding Box Coordinates |
West: -175.58
East: 178.3
South: -46.92
North: 57.5
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Spatial Coverage Map |
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General Documentation |
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Associated Resources |
- Real-Time Deep-Ocean Tsunami Measuring, Monitoring, and Reporting System: The NOAA DART(R) II Description and Disclosure
- The NTHMP Tsunameter Network
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Publication Dates |
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Dataset Progress Status |
Under development - data is currently in the process of being created |
Data Update Frequency |
As needed |
Purpose |
To ensure early detection of tsunamis and to acquire data critical to real-time forecasts |
Dataset Citation |
- Cite as: National Oceanic and Atmospheric Administration (2005): Deep-Ocean Assessment and Reporting of Tsunamis (DART(R)). NOAA National Centers for Environmental Information. doi:10.7289/V5F18WNS [access date]
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Originators |
- George Mungov
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
- DOC/NOAA/NWS/NDBC > National Data Buoy Center, National Weather Service, NOAA, U.S. Department of Commerce
- DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce
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Publishers |
- NOAA National Centers for Environmental Information
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Acknowledgments |
- * DOC/NOAA/NWS/NDBC > National Data Buoy Center, National Weather Service, NOAA, U.S. Department of Commerce* DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce
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Theme keywords |
Global Change Master Directory (GCMD) Science Keywords
- Earth Science > Oceans > Coastal Processes > Tidal Height
- Earth Science > Oceans > Coastal Processes > Sea Surface Height
- Earth Science > Oceans > Ocean Waves > Significant Wave Height
- Earth Science > Oceans > Ocean Waves > Tsunamis
- Earth Science > Oceans > Tides > Tidal Height
- Earth Science > Oceans > Tides > Tidal Range
- Earth Science > Solid Earth > Tectonics > Earthquakes > Seismic Profile > Seismic Surface Waves
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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
- DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
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Platform keywords |
Global Change Master Directory (GCMD) Platform Keywords- In Situ Ocean-based Platforms > DART > Deep-ocean Assessment and Reporting of Tsunamis
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Instrument keywords |
Global Change Master Directory (GCMD) Instrument Keywords- In Situ/Laboratory Instruments > Gauges > Bottom Pressure Gauges
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Place keywords |
Global Change Master Directory (GCMD) Location Keywords
- Ocean > Pacific Ocean
- Ocean > Pacific Ocean > North Pacific Ocean
- Ocean > Pacific Ocean > North Pacific Ocean > Gulf of Alaska
- Ocean > Pacific Ocean > North Pacific Ocean > Gulf of Alaska
- Ocean > Pacific Ocean > Central Pacific Ocean
- Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands
- Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Hawaii Island
- Ocean > Pacific Ocean > Western Pacific Ocean
- Ocean > Pacific Ocean > Western Pacific Ocean > Philippines
- Ocean > Pacific Ocean > Western Pacific Ocean > Micronesia
- Ocean > Pacific Ocean > South Pacific Ocean
- Ocean > Pacific Ocean > South Pacific Ocean > Melanesia
- Ocean > Pacific Ocean > South Pacific Ocean > Polynesia
- Ocean > Pacific Ocean > Eastern Pacific Ocean
- Ocean > Atlantic Ocean
- Ocean > Atlantic Ocean > North Atlantic Ocean
- Ocean > Atlantic Ocean > North Atlantic Ocean > Gulf of Mexico
- Ocean > Atlantic Ocean > North Atlantic Ocean > Carribean Sea
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Project keywords |
Global Change Master Directory (GCMD) Project Keywords- ICSU-WDS > International Council for Science - World Data System
Global Change Master Directory (GCMD) Project Keywords
- NTHMP > National Tsunami Hazard Mitigation Program
- DART > Deep-ocean Assessment and Reporting of Tsunamis Project
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Use Constraints |
- While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
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Access Constraints |
- Access to this dataset is unrestricted.
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Other Constraints |
Cite as: National Oceanic and Atmospheric Administration (2005): Deep-Ocean Assessment and Reporting of Tsunamis (DART(R)). NOAA National Centers for Environmental Information. doi:10.7289/V5F18WNS [access 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.
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Lineage information for: dataset |
Processor |
- DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
- DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
- DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
- DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
- DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
- DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
- DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
- DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
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Processing Steps |
- 2005-09-02T00:00:00 - BPR data received at NGDC
- 2006-03-02T00:00:00 - Reprocessed data files so that 3 columns were represented; DATE, TEMP, PRESSURE. Files were renamed to the following convention - SSSS_YYYY-ed.dat. Where SSSS is the station_id, YYYY is year of deployment. No data was lost.
- 2006-03-31T00:00:00 - Calibrated DART(R) data received.
- 2006-03-29T00:00:00 - Edited original data archived in the following directory: insitu_ocean:dart_bpr:data:ed:ed_orig
- 2006-03-29T00:00:00 - Calibrated data archived in the following directory: insitu_ocean:dart_bpr:data:cal:cal_orig
- 2006-08-04T00:00:00 - received tidal constants
- 2006-09-27T00:00:00 - tidal constituents archived:insitu_ocean:dart_bpr:data:tcon
- 2008-09-24T00:00:00 - Raw BPR data received at NGDC.
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Source Datasets |
- Deep-Ocean Assessment and Reporting of Tsunamis (DART(R))
- Description of Source: Source Contribution: DVDs of edited historic readings. Source Type: CD-ROM
- Temporal extent used: 1998-07-02 to 2003-01-01
- Deep-Ocean Assessment and Reporting of Tsunamis (DART(R))
- Description of Source: Source Contribution: Received 2 DVD's of calibrated historic DART(R) data. Source Type: CD-ROM
- Temporal extent used: 1998-07-02 to 2003-01-01
- Deep-Ocean Assessment and Reporting of Tsunamis (DART(R))
- Description of Source: Source Contribution: Tidal harmonic constants received. Source Type: Online
- Temporal extent used: 1983-10-19 to 2004-05-11
- Deep-Ocean Assessment and Reporting of Tsunamis (DART(R))
- Description of Source: Source Contribution: NDBC sends raw BPR data to NCEI (formerly NGDC) for archive. Source Type: DVD
- Temporal extent used: 2006-10-27 to 2008-09-24
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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.
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Acquisition Information (collection) |
Instrument |
- Benthos Telesonar acoustic modem
- 32-bit, 3.3 volt Motorola 68322 microcontroller
- Motorola 9522 L-Band Iridium transceiver
- Leadtek model 9546 GPS receiver
- 0-10,000 psi model 410K Digiquartz unit
- Reciprocal Counter
- Geometrics 900-45
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Platform |
- DART(R) > Deep-ocean Assessment and Reporting of Tsunamis
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Operation |
- National Tsunami Hazard Mitigation Program (NTHMP)
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Last Modified: 2022-06-03
For questions about the information on this page, please email:
ncei.info@noaa.gov