gov.noaa.ngdc:G10068 DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, 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/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (comp.) DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce User Services Paula Dunbar Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC 325 Broadway

Boulder CO 80305-3328 USA (303) 497-6826 (303) 497-6513 Paula.Dunbar@noaa.gov 7:30 - 5:00 Mountain DOC/NOAA/NWS/NDBC > National Data Buoy Center, National Weather Service, NOAA, U.S. Department of Commerce Mailing

National Data Buoy Center 1007 Balch Blvd.

Stennis Space Center MS 39529 USA 228-688-2805 webmaster.ndbc@noaa.gov DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce Mailing and Physical

NOAA/OAR/PMEL R/PMEL 7600 Sand Point Way, NE

Seattle WA 98115-6349 USA (206) 526-6239 (206) 526-6815 20050902 http://www.ngdc.noaa.gov/hazard/DARTData.shtml As part of the U.S. National Tsunami Hazard Mitigation Program (NTHMP), the Deep Ocean Assessment and Reporting of Tsunamis (DART) 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 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 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 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 Meinig, C. Stalin, S.E. Nakamura, A.I. Milburn, H.B. 20050604 Gonzalez, F.I. Bernard, E.N. Meinig, C. Eble, M. Mofjeld, H.O. Stalin, S. 2005 Natural Hazards 35(1) U.S. National Tsunami Hazard Mitigation Program, 25-39 19831019 125949 Present ground condition In work As needed -175.58 178.3 57.5 -46.92 ISO 19115 Topic Category geoscientificInformation oceans NASA/GCMD Earth Science Keywords Earth Science > Oceans > Coastal Processes > Tidal 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 > Seismology > Seismic Surface Waves NASA/GCMD Data Center Keywords WDC/SEG, BOULDER > World Data Center for Solid Earth Geophysics, Boulder DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce NOAA Tsunami Hazard Mitigation Program (NTHMP) Deep-ocean Assessment and Reporting of Tsunamis DART Bottom Pressure Recorder BPR None None DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Kelly Stroker Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-4603 (303) 497-6958 (303) 497-6513 kelly.stroker@noaa.gov 7:30-5:00 Mountain Contact Data Center * 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 None None DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce Mailing and Physical

NOAA/OAR/PMEL R/PMEL 7600 Sand Point Way, NE

Seattle WA 98115-6349 USA (206) 526-6239 (206) 526-6815 20050902 CD-ROM 19980702 2355 2003 publication date DART-ed 20050902 DVDs of edited historic readings. DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce Mailing and Physical

NOAA/OAR/PMEL R/PMEL 7600 Sand Point Way, NE

Seattle WA 98115-6349 USA (206) 526-6239 (206) 526-6815 20060331 CD-ROM 19980702 2003 ground condition DART-cl 20060331 Received 2 DVD's of calibrated historic DART data. DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce Mailing and Physical

NOAA/OAR/PMEL R/PMEL 7600 Sand Point Way, NE

Seattle WA 98115-6349 USA (206) 526-6239 (206) 526-6815 20060804 Online 19831019 20040511 ground condition tidal constituents 20060804 Tidal harmonic constants received. DOC/NOAA/NWS/NDBC > National Data Buoy Center, National Weather Service, NOAA, U.S. Department of Commerce DOC/NOAA/NWS/NDBC > National Data Buoy Center, National Weather Service, NOAA, U.S. Department of Commerce Mailing

National Data Buoy Center 1007 Balch Blvd.

Stennis Space Center MS 39529 USA 228-688-2805 webmaster.ndbc@noaa.gov 20081010 DVD 20061027 20080924 ground condition DART-Raw NDBC sends raw BPR data to NGDC for archive. BPR data received at NGDC DART-ed 20050902 20050902 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Kelly Stroker Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-4603 (303) 497-6958 (303) 497-6513 kelly.stroker@noaa.gov 7:30-5:00 Mountain Contact Data Center 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. DART-ed 20050902 20060302 DART 20060302 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Kelly Stroker Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-4603 (303) 497-6958 (303) 497-6513 kelly.stroker@noaa.gov 7:30-5:00 Mountain Contact Data Center Calibrated DART data received. DART-cl 20060331 20060331 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Kelly Stroker Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-4603 (303) 497-6958 (303) 497-6513 kelly.stroker@noaa.gov 7:30-5:00 Mountain Contact Data Center Edited original data archived in the following directory: insitu_ocean:dart_bpr:data:ed:ed_orig DART-ed 20050902 20060329 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Kelly Stroker Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-4603 (303) 497-6958 (303) 497-6513 kelly.stroker@noaa.gov 7:30-5:00 Mountain Contact Data Center Calibrated data archived in the following directory: insitu_ocean:dart_bpr:data:cal:cal_orig DART-cl 20060331 20060329 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Kelly Stroker Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-4603 (303) 497-6958 (303) 497-6513 kelly.stroker@noaa.gov 7:30-5:00 Mountain Contact Data Center received tidal constants tidal constituents 20060804 20060804 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Kelly Stroker Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-4603 (303) 497-6958 (303) 497-6513 kelly.stroker@noaa.gov 7:30-5:00 Mountain Contact Data Center tidal constituents archived:insitu_ocean:dart_bpr:data:tcon tidal constituents 20060804 20060927 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Kelly Stroker Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-4603 (303) 497-6958 (303) 497-6513 kelly.stroker@noaa.gov 7:30-5:00 Mountain Contact Data Center Raw BPR data received at NGDC. DART-Raw 20080924 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Kelly Stroker Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-4603 (303) 497-6958 (303) 497-6513 kelly.stroker@noaa.gov 7:30-5:00 Mountain Contact Data Center Point A location on the surface of the Earth. Author 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 buoys (the name given to the most recent deployments), RT = Real Time (the name given to the TESTS of the most recent deployments) DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce http://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. Author. The value is a unique identifier and must not be null. Latitude Latitude is measured from the equator, with positive values going north and negative values going south. NASA -90 90 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. NASA -180 180 decimal degrees Location General location of the buoy. DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce Location is not from a pre-determined set of values, it is a free text field. 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. DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce 0 23000 meters Deployment_Date GMT Year, Month, Day and time the BPR package was deployed from the ship in GMT Author 19980102 unknown 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. Author 19990610 unknown 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. Author 19980703 unknown 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. Author 19990513 unknown Year, Month, Day in the form YYYYMMDD Sample_Rate This is the period, in seconds, at which the buoy makes a measurement. Author 15 15 seconds Data_Quality Area for comments about the quality of the data in the file. Author. 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. Author. 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. Author. This is not a predefined set of values. Ship name is a freeform text field up to 25 characters in length, assigned by PMEL. DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Kelly Stroker Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-4603 (303) 497-6958 (303) 497-6513 kelly.stroker@noaa.gov 7:30-5:00 Mountain Contact Data Center G10068 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. ASCII http://ngdc.noaa.gov/hazard/DARTData.shtml http://www.ngdc.noaa.gov/hazard/DARTData.shtml http Historic DART/BPR Data On-line Data access to historic DART/BPR data obtained from PMEL and NDBC. search None Data is available from NGDC 20090206 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Kelly Stroker Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-4603 (303) 497-6958 (303) 497-6513 kelly.stroker@noaa.gov 7:30-5:00 Mountain Contact Data Center FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-012-2002 http://www.ngdc.noaa.gov/metadata/extensions/local_extensions.html NGDC Extensions to FGDC Metadata NOAA Tsunami Hazard Mitigation Program (NTHMP) To reduce the impact of tsunamis through hazard assessment, warning guidance, and mitigation. 1994 Deep-ocean Assessement and Reporting of Tsunamis (DART) 1995 DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce DOC/NOAA/NWS/NDBC > National Data Buoy Center, National Weather Service, NOAA, U.S. Department of Commerce A DART 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. Benthos Telesonar acoustic modem Acoustic Modem Modem None 32-bit, 3.3 volt Motorola 68322 microcontroller Computer Data communication None 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. Motorola 9522 L-Band Iridium transceiver Iridium transceiver Satellite None 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. Leadtek model 9546 GPS receiver GPS Receiver None 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. 0-10,000 psi model 410K Digiquartz unit Pressure Sensor Pressure None The DART 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. Reciprocal Counter Reciprocal Counter pressure and temperature signals None 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. Geometrics 900-45 Tilt Sensor Tilt None 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. 3358 76 1000000121 20060302 15:30:17 000 20110906 11:48:44 000 96