gov.noaa.ngdc.dart_bpr:AK12_1988
eng; USA
utf8
dataset
2016-03-21
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
BPR Data for AK12 19880315 to 19880914
2006-04-21
publication
DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce
originator
https://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
During 1982-1985, PMEL engaged in the development of a reliable deep-ocean Bottom Pressure Recorder (BPR) to collect high-quality deep-water data during a tsunami. In 1986, NOAA initiated a long-term field program in the northeast Pacific and the program was expanded in 1987 to include shallow-water BPR sites maintained and operated by the United States Army Corps of Engineers along the United States west coast and Hawaii. The Pacific Tsunami Observation Program (PacTOP) included five permanent deep-ocean observational sites in the northeast Pacific Ocean to monitor the seismically active Alaska-Aleutian Seismic Zone because of the potential threat to United States coastal regions. During the mid-90's, the individual BPR package is now part of a real-time tsunami detection package, the Deep-ocean Assessment and Reporting of Tsunamis (DART). The National Geophysical Data Center (NGDC) serves as the archive center for this data and provides the historical data to users.
Provide historic pressure and temperature data
completed
notPlanned
Earth Science > Oceans > Coastal Processes > Tidal Height
Earth Science > Oceans > Ocean Waves > Tsunamis
Earth Science > Oceans > Tides > Tidal Height
theme
eng; USA
geoscientificInformation
oceans
-156.4708
-156.4708
52.7228
52.7228
1988-03-15T230001
1988-09-14T210001
The Bottom Pressure Recorder dataset consists of over 70 BPR's deployed in: a triangular array in close proximity to the Shumigan Seismic Gap; near the landward slope of the Aleutian Trench, off the United States Pacific Northwest coast, and off the coast of Hawaii.
Bottom Pressure Recorder: An acoustic modem, acoustic release unit and battery pack bolted to a platform, to which a disposable anchor, flotation, and recovery aids are attached
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. If value is 99999, depth is unknown.
4516
4516
meters
meters
Latitude
Latitude is measured from the equator, with positive values going north and negative values going south.
52.7228
52.7228
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.
-156.4708
-156.4708
decimal degrees
decimal degrees
Latitude
Latitude is measured from the equator, with positive values going north and negative values going south.
52.7228
52.7228
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.
-156.4708
-156.4708
decimal degrees
decimal degrees
Sample_rate
This is the period, in seconds, at which the buoy makes a measurement. Usually it is 15 seconds, but for the older buoys it is 56.25 seconds.
56.25
56.25
Minutes
Minutes
Pressure
Edited Pressure [PSIA], pressure in pounds per square inch absolute
6712.625
6707.9082
psia
psia
Temperature
Edited Temperature [C] , temperature in Celsius.
2.8
1.65302
Celcius
Celcius
Paros_ducer
Paros transducer - measure change in water pressure above it.
24064: Serial Number of the Paros transducer
Board
Number that the engineers came up with for the electronic boards.
54: Board Number. If = 999, then board number not applicable, never existed or not recorded for this time.
Osc
Time measurement. NA = no time bases on the early models.
N/A: N/A or NULL indicates early models. There was time bases on the early models.
Deployment_UTC
Time (Coordinated Universal Time) that the gauge was deployed overboard
1859: Coordinated Universal Time - if value = 9999, UTC is unknown.
Deployment_JD
Calendar date that the instrument was deployed.
75: Julian day - if value = 999, exact deploy date is unknown.
Deployment Date
YYYYMMDD of deployment of BPR Package. The attribute may be left with only YYYY, if the month and day are unknown, or YYYYMM if the day is unknown. The value may be null.
19880315: YYYYMMDD
Recovered
Indicates if the BPR Package was recovered from the seafloor.
YES: None
Recovery_UTC
Time (Coordinated Universal Time) that the gauge was recovered.
2101: Coordinated Universal Time - if value = 9999, UTC is unknown.
Recovery_jd
Calendar date that the instrument was recovered.
258: Julian Day - if value = 999, exact recovery date is unknown.
Recovery_date
YYYYMMDD of recovery of BPR Package. The attribute may be left with only YYYY, if the month and day are unknown, or YYYYMM if the day is unknown. The value may be null.
19880914: YYYYMMDD - if value = 99999, exact recovery date is unknown.
Base
None
0: If base = 99999, then it is not applicable.
Temp_corr
Temperature correction. In the later years, the engineers designed an MTR (mini temperature recorder) independant of the Paros Transducer measurement, which has a little lag.
999: If value = 999, MTR was not used.
Clock_drift
A check of the clock before the unit goes down and after it comes back up.
999: if value = 999, technician did not record value.
TR Pre
Measurement of drift
NULL: None
TR Post
Measurement of drift
NULL: None
Location
The location where the buoy was located.
Alaska Array: N/A - if location information is not known.
Data_Qual
Quality of the data collected.
Grassy' temperature record: None
Comments
Comments on the recovery of the BPR package or the data collected.
Grassy' spikes edited out
Deployment Platform
Abbreviation of ship name that was used to deploy the BPR package.
OC-88-01: Ship name and cruise number.
Recovery Platform
Abbreviation of ship name that was used to recover the BPR package.
SU-88-1: Ship name and cruise number, if NULL - unit not recovered.
ASCII
free for online download
https://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
dataset
None
None
Early processing of the data can be found in Eble et al., 1989.
Marie Eble
DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce
(206)526-6805
7600 SAND POINT WAY, NE
Seattle
WA
98115
USA
marie.c.eble@noaa.gov
processor
Received edited data
2005-09-02T00:00:00
Source Contribution: Processing steps for BPR data after recovered. Source Type: paper
Historic Bottom Pressure Recorder (BPR) Data
1989-08-01
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
publisher
DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce
originator
F.I. Gonzalez
originator
D.M. Mattens
originator
H.B. Milburn
originator
NOAA Technical Memorandum
ERL PMEL-89
1983-10-19
2002-07-19
Source Contribution: ASCII .dat file of historic edited data from AK12 Source Type: CD-ROM
Historic Bottom Pressure Recorder (BPR) Data
2005-09-01
publication
DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce
originator
1988-03-15T230001
1988-09-14T210001
platformSeries
Mission History
Mission Start Date
Transducers have been incorporated into pressure sensor units designed for oceanic application.
annually
This metadata was automatically generated from the FGDC Content Standards for Digital Geospatial Metadata standard (version FGDC-STD-012-2002) using the 2014-08-08 version of the fgdcrse2iso19115-2-forDART.
Translated from FGDC 2016-03-21T15:27:36.613-06:00
Paroscientific model 410K-017 digiquartz pressure transducer. ID 24064
Pressure Sensor
Operation Mode: Vibrational, Collection Type: Changes in pressure, Properties Description: None, Collection Description: None
Yellow Spring International Model 44032 thermistor
Temperature Sensor
Collection Type: Temperature, Properties Description: Range -4.3 to 34.0 C. Accuracy to 0.07 C, Collection Description: None
Multimode quartz crystal oscillator
Time base
Operation Mode: 2.097152 MHz, Collection Type: Time, Properties Description: Stable 0.1 ppm degrees 1/C, 1 ppm 1/yr, Collection Description: None
Mitigate hazard to Hawaii, California, Oregon, Washington, and Alaska.
Pacific Tsunami Observation Program (PacTOP)
completed
Bottom Pressure Recorder
High-quality bottom pressure recorder (BPR) measurement collect data during a tsunami. (Platform Start Date: 19880315 1859)
NOAA's Pacific Marine Environmental Laboratory (PMEL)
sponsor