gov.noaa.ngdc:G10068 eng; USA utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact 2022-06-03 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) World Geodetic System 1984 WGS 84 2007-08-27 revision https://epsg.org/crs_4326/WGS-84.html WGS 84 GML of World Geodetic System 1984 coordinate reference system. information resourceProvider European Petroleum Survey Group https://epsg.org/home.html European Petroleum Survey Group Geodetic Parameter Registry Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations. search publisher urn:ogc:def:crs:EPSG::4326 Deep-Ocean Assessment and Reporting of Tsunamis (DART(R)) 2005-09-02 publication doi:10.7289/V5F18WNS NOAA National Centers for Environmental Information publisher George Mungov DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (303) 497-6826 (303) 497-6513 325 Broadway, Mail Code E/GC Boulder CO 80305-3328 USA George.Mungov@noaa.gov 7:30 - 5:00 Mountain originator DOC/NOAA/NWS/NDBC > National Data Buoy Center, National Weather Service, NOAA, U.S. Department of Commerce 228-688-2805 National Data Buoy Center 1007 Balch Blvd. Stennis Space Center MS 39529 USA webmaster.ndbc@noaa.gov originator DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce (206) 526-6239 (206) 526-6815 NOAA/OAR/PMEL R/PMEL 7600 Sand Point Way, NE Seattle WA 98115-6349 USA originator 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. To ensure early detection of tsunamis and to acquire data critical to real-time forecasts * 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 underDevelopment NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA National Centers for Environmental Information Water Level Data Manager haz.info@noaa.gov pointOfContact asNeeded https://www.ngdc.noaa.gov/hazard/img/figure_japan2011_dart_plot.png Time-series showing tsunami signal PNG 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 theme Global Change Master Directory (GCMD) Science Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian ICSU-WDS > International Council for Science - World Data System project Global Change Master Directory (GCMD) Project Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian In Situ Ocean-based Platforms > DART > Deep-ocean Assessment and Reporting of Tsunamis platform Global Change Master Directory (GCMD) Platform Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian In Situ/Laboratory Instruments > Gauges > Bottom Pressure Gauges instrument Global Change Master Directory (GCMD) Instrument Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian NTHMP > National Tsunami Hazard Mitigation Program DART > Deep-ocean Assessment and Reporting of Tsunamis Project project Global Change Master Directory (GCMD) Project Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian 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 place Global Change Master Directory (GCMD) Location Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian 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 dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian otherRestrictions 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] otherRestrictions Access to this dataset is unrestricted. otherRestrictions 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. Real-Time Deep-Ocean Tsunami Measuring, Monitoring, and Reporting System: The NOAA DART(R) II Description and Disclosure 2005-06-04 publication Meinig, C. originator Stalin, S.E. originator Nakamura, A.I. originator Milburn, H.B. originator crossReference sciencePaper The NTHMP Tsunameter Network 2005-01-01 publication Gonzalez, F.I. originator Bernard, E.N. originator Meinig, C. originator Eble, M. originator Mofjeld, H.O. originator Stalin, S. originator Natural Hazards 35(1) U.S. National Tsunami Hazard Mitigation Program, 25-39 crossReference sciencePaper textTable eng; USA geoscientificInformation oceans U.S. DART Network -175.58 178.3 -46.92 57.5 1983-10-19 Point: A location on the surface of the Earth. physicalMeasurement Latitude Latitude is measured from the equator, with positive values going north and negative values going south. 90 -90 decimal degrees decimal degrees Longitude Longitude is measured from the Prime Meridian (which is the longitude that runs through Greenwich, England), with positive values going east and negative values going west. 180 -180 decimal degrees decimal degrees Depth The ship-measured depth (meters) of the ocean at which the buoy was moored. The ship-measured depth is not as accurate as the BPR-measured pressure. To obtain the most precise depth, convert the bottom pressure to depth. 23000 0 meters meters Deployment_Date GMT Year, Month, Day and time the BPR package was deployed from the ship in GMT 19980102 Year, Month, Day in the form YYYYMMDD Year, Month, Day in the form YYYYMMDD Recovery_Date GMT Year, Month, Day and time the BPR package was recovered or there was an attempt to recover the BPR package from the seafloor. 19990610 Year, Month, Day in the form YYYYMMDD Year, Month, Day in the form YYYYMMDD Start_Date GMT Year, Month, Day and time the first piece of data was recorded in the file. 19980703 Year, Month, Day in the form YYYYMMDD Year, Month, Day in the form YYYYMMDD End_Date GMT Year, Month, Day and time the last piece of data was recorded in the file. 19990513 Year, Month, Day in the form YYYYMMDD Year, Month, Day in the form YYYYMMDD Sample_Rate This is the period, in seconds, at which the buoy makes a measurement. 15 15 seconds seconds Station_ID This is the Pacific Marine Environment Laboratory's (PMEL's) buoy identification number. The Station ID contains letters (e.g. "AK") and numbers (e.g. "10"). For example, "AK10", indicates that the buoy was moored in the waters off of Alaska and was the 10th buoy installed. The prefixes used by PMEL are: AK = Alaska, WC = West Coast (e.g. off Oregon's coast), EP = Equatorial Pacific, HI = Hawaii, D = DART(R) buoys (the name given to the most recent deployments), RT = Real Time (the name given to the TESTS of the most recent deployments) https://www.ngdc.noaa.gov/seg/hazard/DARTData.shtml: DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce ID Unique identifier for the row in the database table. The value is a unique identifier and must not be null. Location General location of the buoy. Location is not from a pre-determined set of values, it is a free text field. Data_Quality Area for comments about the quality of the data in the file. Not a predefined set of values. This is a freetext area and is not required. Deployment_Platform The name of the platform (ship) that deployed the BPR. This is not a predefined set of values. Ship name is a freeform text field up to 25 characters in length, assigned by PMEL. Recovery_Platform The name of the platform (ship) that recoverd the BPR. This is not a predefined set of values. Ship name is a freeform text field up to 25 characters in length, assigned by PMEL. NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor 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. Contact NCEI for other distribution options and instructions. netCDF 4 OPeNDAP Tab-delimited File GZIP https://www.ngdc.noaa.gov/hazard/DARTData.shtml https Historic DART(R)/BPR Data Data access to historic DART(R)/BPR data obtained from PMEL and NDBC. download https://www.ncei.noaa.gov/maps/hazards/?layers=4 https Natural Hazards Map Viewer - DART(R) Stations Search and view DART(R) stations in relation to historical tsunami events and observations search https://www.ngdc.noaa.gov/hazard/dart https Timeline View of DART(R) Ocean Bottom Pressure Data Inventory Search and view DART(R) deployments through time search https://www.ngdc.noaa.gov/thredds/enhancedCatalogWaterlevel.html UNIDATA:THREDDS THREDDS Catalog: DART(R) Ocean Bottom Pressure Data On-line Data access to DART(R) ocean bottom pressure data. download https://www.ngdc.noaa.gov/hazard/ https Natural Hazards Website Data, products and services for natural hazards. information repository NOAA National Centers for Environmental Information 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. 2015-04-22T00:00:00 dataset None None BPR data received at NGDC 2005-09-02T00:00:00 George Mungov DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (303) 497-4603 (303) 497-6513 325 Broadway, Mail Code E/GC1 Boulder CO 80305-3328 USA george.mungov@noaa.gov 7:30-5:00 Mountain Contact Data Center processor 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. 2006-03-02T00:00:00 George Mungov DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (303) 497-4603 (303) 497-6513 325 Broadway, Mail Code E/GC1 Boulder CO 80305-3328 USA George.Mungov@noaa.gov 7:30-5:00 Mountain Contact Data Center processor Calibrated DART(R) data received. 2006-03-31T00:00:00 George Mungov DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (303) 497-4603 (303) 497-6513 325 Broadway, Mail Code E/GC1 Boulder CO 80305-3328 USA George.Mungov@noaa.gov 7:30-5:00 Mountain Contact Data Center processor Edited original data archived in the following directory: insitu_ocean:dart_bpr:data:ed:ed_orig 2006-03-29T00:00:00 George Mungov DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (303) 497-4603 (303) 497-6513 325 Broadway, Mail Code E/GC1 Boulder CO 80305-3328 USA George.Mungov@noaa.gov 7:30-5:00 Mountain Contact Data Center processor Calibrated data archived in the following directory: insitu_ocean:dart_bpr:data:cal:cal_orig 2006-03-29T00:00:00 George Mungov DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (303) 497-4603 (303) 497-6513 325 Broadway, Mail Code E/GC1 Boulder CO 80305-3328 USA George.Mungov@noaa.gov 7:30-5:00 Mountain Contact Data Center processor received tidal constants 2006-08-04T00:00:00 George Mungov DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (303) 497-4603 (303) 497-6513 325 Broadway, Mail Code E/GC1 Boulder CO 80305-3328 USA George.Mungov@noaa.gov 7:30-5:00 Mountain Contact Data Center processor tidal constituents archived:insitu_ocean:dart_bpr:data:tcon 2006-09-27T00:00:00 George Mungov DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (303) 497-4603 (303) 497-6513 325 Broadway, Mail Code E/GC1 Boulder CO 80305-3328 USA George.Mungov@noaa.gov 7:30-5:00 Mountain Contact Data Center processor Raw BPR data received at NGDC. 2008-09-24T00:00:00 George Mungov DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (303) 497-4603 (303) 497-6513 325 Broadway, Mail Code E/GC1 Boulder CO 80305-3328 USA George.Mungov@noaa.gov 7:30-5:00 Mountain Contact Data Center processor Source Contribution: DVDs of edited historic readings. Source Type: CD-ROM Deep-Ocean Assessment and Reporting of Tsunamis (DART(R)) 2005-09-02 publication DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce (206) 526-6239 (206) 526-6815 NOAA/OAR/PMEL R/PMEL 7600 Sand Point Way, NE Seattle WA 98115-6349 USA originator 1998-07-02 2003-01-01 Source Contribution: Received 2 DVD's of calibrated historic DART(R) data. Source Type: CD-ROM Deep-Ocean Assessment and Reporting of Tsunamis (DART(R)) 2006-03-31 publication DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce (206) 526-6239 (206) 526-6815 NOAA/OAR/PMEL R/PMEL 7600 Sand Point Way, NE Seattle WA 98115-6349 USA originator 1998-07-02 2003-01-01 Source Contribution: Tidal harmonic constants received. Source Type: Online Deep-Ocean Assessment and Reporting of Tsunamis (DART(R)) 2006-08-04 publication DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce (206) 526-6239 (206) 526-6815 NOAA/OAR/PMEL R/PMEL 7600 Sand Point Way, NE Seattle WA 98115-6349 USA originator 1983-10-19 2004-05-11 Source Contribution: NDBC sends raw BPR data to NCEI (formerly NGDC) for archive. Source Type: DVD Deep-Ocean Assessment and Reporting of Tsunamis (DART(R)) 2008-10-10 publication DOC/NOAA/NWS/NDBC > National Data Buoy Center, National Weather Service, NOAA, U.S. Department of Commerce 228-688-2805 National Data Buoy Center 1007 Balch Blvd. Stennis Space Center MS 39529 USA webmaster.ndbc@noaa.gov originator 2006-10-27 2008-09-24 platformSeries Mission History Mission Start Date 1994-01-01T00:00:00 annually This metadata was automatically generated from the FGDC Content Standards for Digital Geospatial Metadata standard (version FGDC-STD-012-2002) using the 2012-11-07 version of the FGDC RSE to ISO 19115-2 transform. Translated from FGDC 2014-01-31T18:16:53.377-07:00 This record was automatically modified on 2015-09-17 to include references to NCEI where applicable. This record was modified on 2022-06-03 to update the map viewer URL. NOAA National Centers for Environmental Information Metadata Specialist editor Benthos Telesonar acoustic modem Acoustic Modem Collection Type: Modem, Collection Description: None 32-bit, 3.3 volt Motorola 68322 microcontroller Computer Collection Type: Data communication, Properties Description: The embedded computer system in both the buoy and the tsunameter was designed around the32-bit, 3.3 volt Motorola 68332 microcontroller, and was programmed in C. It was built to beenergy efficient for long-term battery powered deployment. The computer has 4 Mb of flashmemory, a 12-bit A/D converter with 8 input channels, two RS232 channels, a hardwarewatchdog timer, a real-time clock, and 512 bytes of RAM. The embedded computer implementsand regulates the primary functions of the surface and seafloor units: transmitting datacommunications, running the tsunami detection algorithm, storing and retrieving water columnheights, generating checksums, and conducting automatic mode switching., Collection Description: None Motorola 9522 L-Band Iridium transceiver Iridium transceiver Collection Type: Satellite, Properties Description: A Motorola 9522 L-Band Iridium transceiver from NAL Research provides data connectivity viathe Iridium Satellite Network. The buoy computer connects to the transceiver using an RS232serial port. Data is transferred at 2400 baud similarly to the familiar dial-up modem connections.A typical Standard Mode report takes approximately 30 seconds, including the time it takes tocomplete the connection, transmit the data, and disconnect., Collection Description: None Leadtek model 9546 GPS receiver GPS Collection Type: Receiver, Properties Description: A Leadtek model 9546 GPS receiver is used to maintain the buoy's computer clock accuracy to within 1 second of GMT. Additionally, a GPS position is reported once per day to monitor buoy position., Collection Description: None 0-10,000 psi model 410K Digiquartz unit Pressure Sensor Collection Type: Pressure, Properties Description: The DART(R) II pressure sensor is a 0-10,000 psi model 410K Digiquartz? unit manufactured byParoscientific, Inc.9 The transducers use a very thin quartz crystal beam, electrically induced tovibrate at its lowest resonant mode. The oscillator is attached to a Bourdon tube that is open onone end to the ocean environment10. The pressure sensor outputs two frequency-modulatedsquare waves, proportional to the ambient pressure and temperature. The temperature data isused to compensate for the thermal effects on the pressure-sensing element., Collection Description: None Reciprocal Counter Reciprocal Counter Collection Type: pressure and temperature signals, Properties Description: The high resolution precision reciprocal counting circuit continuously measures the pressureand temperature signals simultaneously, integrating them over the entire sampling window,nominally set to 15 seconds. There is no dead period between the sampling windows. Thecircuit has a sub-millimeter pressure and sub-millidegree temperature least-count resolution.The reference frequency for the reciprocal counter is derived from a low power, very stable, 2.097152 MHz, temperature-compensated crystal oscillator. A real time calendar-clock in thecomputer also uses this reference for a time base. At the end of each sampling window, thecomputer reads the pressure and temperature data and stores the data in a flash memory card.A 15-second sampling period generates about 18 megabytes of data per year., Collection Description: None Geometrics 900-45 Tilt Sensor Collection Type: Tilt, Properties Description: Each tsunameter has a Geometrics 900-45 tilt sensor mounted in the base of one of thehousings. This is used to determine the orientation of the acoustic transducer when the systemhas settled on the seafloor. If the tilt is greater than 10 degrees the tsunameter can berecovered and redeployed. The watch circle of the surface buoy could carry it out of the acousticprojection cone from the tsunameter if the angle from the vertical is too great., Collection Description: None To reduce the impact of tsunamis through hazard assessment, warning guidance, and mitigation. National Tsunami Hazard Mitigation Program (NTHMP) DART(R) > Deep-ocean Assessment and Reporting of Tsunamis The DART(R) system consists of a seafloor bottom pressure recording (BPR) system capable of detecting tsunamis as small as 1 cm, and a moored surface buoy for real-time communications. An acoustic link is used to transmit data from the BPR on the seafloor to the surface buoy. The data are then relayed via a GOES satellite link to ground stations, which demodulate the signals for immediate dissemination to NOAA's Tsunami Warning Centers and PMEL. DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce sponsor DOC/NOAA/NWS/NDBC > National Data Buoy Center, National Weather Service, NOAA, U.S. Department of Commerce sponsor