gov.noaa.nodc:0205783
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gov.noaa.nodc:CLIVAR-LADCP
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2023-12-11T16:57:58Z
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Ocean currents from lowered acoustic Doppler current profilers (LADCP) aboard R/V Melville cruise MV1305 AND MV1306 along U.S. Climate Variability and Predictability Research Program (CLIVAR) section P02 from 2013-03-21 to 2013-06-03 (local) (NCEI Accession 0205783)
2019-10-24
publication
NOAA National Centers for Environmental Information
gov.noaa.nodc:0205783
NCEI Archive Management System
0205783
NOAA National Centers for Environmental Information
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Julia M. Hummon
University of Hawai'i at Mānoa (UHM)
hummon@hawaii.edu
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University of Hawai'i at Mānoa (UHM)
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Thurnherr, Andreas
Lamont-Doherty Earth Observatory, Columbia University
ant@ldeo.columbia.edu
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Andreas M. Thurnherr
Columbia University; Lamont-Doherty Earth Observatory (LDEO)
ant@ldeo.columbia.edu
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principalInvestigator
James H. Swift
University of California - San Diego; Scripps Institution of Oceanography (SIO)
scrippsnews@ucsd.edu
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collaborator
Sabine Mecking
University of Washington (UW)
smecking@apl.washington.edu
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Columbia University; Lamont-Doherty Earth Observatory (LDEO)
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This data set contains the Lowered Acoustic Doppler Current Profile (LADCP) estimates of ocean currents and shear in a profile to deep waters. A raw and a processed version are given in each dataset, both of which include ancillary data streams from CTD, ship navigation, and shipboard ADCP. The data were collected on R/V Melville for cruise MV1305 AND MV1306 on U.S. Climate Variability and Predictability Research Program (CLIVAR) section P02 from 2013-03-21 to 2013-06-03 (local). This cruise is one of 53 cruises within the NCEI collections WOCE-LADCP and CLIVAR-LADCP. The finalized datasets have been assembled and submitted to NCEI by the University of Hawaii and the Scripps Institution of Oceanography. The originators of each LADCP set are defined within the accession documentation.
This dataset is available to the public for a wide variety of uses including scientific research and analysis.
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0205783
NCEI ACCESSION NUMBER
2019-06-28
publication
CURRENT SPEED - EAST/WEST COMPONENT (U)
CURRENT SPEED - NORTH/SOUTH COMPONENT (V)
HYDROSTATIC PRESSURE
theme
NODC DATA TYPES THESAURUS
ADCP
CTD
instrument
NODC INSTRUMENT TYPES THESAURUS
physical
profile
theme
NODC OBSERVATION TYPES THESAURUS
R/V Melville
platform
NODC PLATFORM NAMES THESAURUS
Columbia University; Lamont-Doherty Earth Observatory
University of Washington
dataCentre
NODC COLLECTING INSTITUTION NAMES THESAURUS
University of Hawai'i at Mānoa
dataCentre
NODC SUBMITTING INSTITUTION NAMES THESAURUS
U.S. Climate Variability and Predictability Research Program (U.S. CLIVAR)
project
NODC PROJECT NAMES THESAURUS
North Pacific Ocean
Papahānaumokuākea Marine National Monument
Philippine Sea
place
NODC SEA AREA NAMES THESAURUS
oceanography
theme
WMO_CategoryCode
2012-09-15
publication
COLUMBIA/LDEO > Lamont-Doherty Earth Observatory, Columbia University
dataCentre
Global Change Master Directory (GCMD) Data Center Keywords
2023
revision
17
Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)
Greenbelt
MD
https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
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GCMD Keyword Forum Page
Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords
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CLIVAR > Climate Variability
project
Global Change Master Directory (GCMD) Project Keywords
2023
revision
17
Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)
Greenbelt
MD
https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
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Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords
information
custodian
mv1305
mv1306
theme
Cruise ID
318M20130321
theme
EXPOCODE
EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > OCEAN CURRENTS
EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE
theme
Global Change Master Directory (GCMD) Science Keywords
2023
revision
17
Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)
Greenbelt
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GCMD Keyword Forum Page
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information
custodian
P02
theme
WOCE Section
ADCP > Acoustic Doppler Current Profiler
CTD > Conductivity, Temperature, Depth
instrument
Global Change Master Directory (GCMD) Instrument Keywords
2023
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17
Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)
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custodian
MELVILLE (call sign: WECB, ICES code: 318M, 1969)
platform
ICES/SeaDataNet Ship Codes
OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS
OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN
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Global Change Master Directory (GCMD) Location Keywords
2023
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Greenbelt
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https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
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Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords
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accessLevel: Public
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Cite as: Thurnherr, Andreas (2019). Ocean currents from lowered acoustic Doppler current profilers (LADCP) aboard R/V Melville cruise MV1305 AND MV1306 along U.S. Climate Variability and Predictability Research Program (CLIVAR) section P02 from 2013-03-21 to 2013-06-03 (local) (NCEI Accession 0205783). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0205783. Accessed [date].
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.
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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.
Ocean currents from lowered acoustic Doppler current profilers (LADCP) from the Climate Variability (CLIVAR) project from 2003 to 2014 assembled at the University of Hawaii and Lamont-Doherty Earth Observatory, Columbia University
2019-10-02
publication
NOAA National Centers for Environmental Information
gov.noaa.nodc:CLIVAR-LADCP
https://www.ncei.noaa.gov/archive/accession/CLIVAR-LADCP
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Navigate directly to the URL for data access and direct download.
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NOAA National Centers for Environmental Information
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largerWorkCitation
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Processed ADCP dataset. In Caldwell, Patrick; US National Oceanographic Data Center (2005). Ocean currents measured by Shipboard Acoustic Doppler Current Profilers (SADCP) from global oceans as part of the Joint Archive (JASADCP) 1990-10 to 2004-08 (NCEI Accession 0001974). NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0001974.
2005-01-12
publication
NOAA National Centers for Environmental Information
gov.noaa.nodc:0001974
https://www.ncei.noaa.gov/archive/accession/0001974/data/0-data/codas/00803
HTTPS
https://www.ncei.noaa.gov/archive/accession/0001974/data/0-data/codas/00803
Online data for SAC ID 00803
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Caldwell, Patrick
US DOC; NOAA; NESDIS; National Centers for Environmental Information (NCEI)
patrick.caldwell@noaa.gov
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US National Oceanographic Data Center
NCEI.Info@noaa.gov
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US National Oceanographic Data Center website
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US DOC; NOAA; NESDIS; National Centers for Environmental Information (NCEI)
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tableDigital
The processed version of the ADCP dataset.
crossReference
collection
Processed ADCP dataset. In Caldwell, Patrick; US National Oceanographic Data Center (2005). Ocean currents measured by Shipboard Acoustic Doppler Current Profilers (SADCP) from global oceans as part of the Joint Archive (JASADCP) 1990-10 to 2004-08 (NCEI Accession 0001974). NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0001974.
2005-01-12
publication
NOAA National Centers for Environmental Information
gov.noaa.nodc:0001974
https://www.ncei.noaa.gov/archive/accession/0001974/data/0-data/codas/00804
HTTPS
https://www.ncei.noaa.gov/archive/accession/0001974/data/0-data/codas/00804
Online data for SAC ID 00804
information
Caldwell, Patrick
US DOC; NOAA; NESDIS; National Centers for Environmental Information (NCEI)
patrick.caldwell@noaa.gov
author
US National Oceanographic Data Center
NCEI.Info@noaa.gov
https://www.nodc.noaa.gov/
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US National Oceanographic Data Center website
Institution web page
information
author
US DOC; NOAA; NESDIS; National Centers for Environmental Information (NCEI)
publisher
tableDigital
The processed version of the ADCP dataset.
crossReference
collection
Processed ADCP dataset. In Caldwell, Patrick; US National Oceanographic Data Center (2005). Ocean currents measured by Shipboard Acoustic Doppler Current Profilers (SADCP) from global oceans as part of the Joint Archive (JASADCP) 1990-10 to 2004-08 (NCEI Accession 0001974). NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0001974.
2005-01-12
publication
NOAA National Centers for Environmental Information
gov.noaa.nodc:0001974
https://www.ncei.noaa.gov/archive/accession/0001974/data/0-data/codas/00805
HTTPS
https://www.ncei.noaa.gov/archive/accession/0001974/data/0-data/codas/00805
Online data for SAC ID 00805
information
Caldwell, Patrick
US DOC; NOAA; NESDIS; National Centers for Environmental Information (NCEI)
patrick.caldwell@noaa.gov
author
US National Oceanographic Data Center
NCEI.Info@noaa.gov
https://www.nodc.noaa.gov/
HTTPS
US National Oceanographic Data Center website
Institution web page
information
author
US DOC; NOAA; NESDIS; National Centers for Environmental Information (NCEI)
publisher
tableDigital
The processed version of the ADCP dataset.
crossReference
collection
Processed ADCP dataset. In Caldwell, Patrick; US National Oceanographic Data Center (2005). Ocean currents measured by Shipboard Acoustic Doppler Current Profilers (SADCP) from global oceans as part of the Joint Archive (JASADCP) 1990-10 to 2004-08 (NCEI Accession 0001974). NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0001974.
2005-01-12
publication
NOAA National Centers for Environmental Information
gov.noaa.nodc:0001974
https://www.ncei.noaa.gov/archive/accession/0001974/data/0-data/codas/00806
HTTPS
https://www.ncei.noaa.gov/archive/accession/0001974/data/0-data/codas/00806
Online data for SAC ID 00806
information
Caldwell, Patrick
US DOC; NOAA; NESDIS; National Centers for Environmental Information (NCEI)
patrick.caldwell@noaa.gov
author
US National Oceanographic Data Center
NCEI.Info@noaa.gov
https://www.nodc.noaa.gov/
HTTPS
US National Oceanographic Data Center website
Institution web page
information
author
US DOC; NOAA; NESDIS; National Centers for Environmental Information (NCEI)
publisher
tableDigital
The processed version of the ADCP dataset.
crossReference
collection
eng; USA
utf8
environment
oceans
133.0296
-117.3838
29.98369
32.64391
2013-03-22
2013-06-01
ADCPs use the Doppler shift of an outgoing frequency along a beam to return measured velocity along that beam. ADCPs typically have 4 beams, allowing measurement of velocity in 3 dimensions, in bins of varying distance from the transducer head. In this application, the ADCP is mounted on a CTD rosette frame and lowered along with the rest of the package, hence called Lowered ADCP ("LADCP"). LADCP requires less ship time in estimating deep currents as compared to historic measuring systems such as Pegasus systems. The goal is to determine water velocities to the full depth of the ocean for each LADCP deployment. Ocean velocities are very small (few cm/s), especially in the deep water. The package is typically lowered or raised at 1m/s for much of the water column, creating a challenging data processing situation. To reduce the LADCP measurements, one must utilize other data streams such as CTD at both standard levels and at the highest frequency of recording, GPS positions, ship navigation, ocean depth, and shipboard ADCP.
Lowered ADCP data requires ancillary information to improve the processed data product. Over generations, the processing has improved and these ancillary components are systematically collected along with the LADCP data. In older datasets, they may be missing entirely. The directory structure and naming convention for the submitted LADCP datasets (WOCE plus CLIVAR) attempt to rationalize 20 years of data acquisition and processing by a collection of scientists who were inventing the field of LADCP acquisition and processing, so there is some variety in the organization and naming of the original datasets. Evolution of the instrumentation and processing techniques have continued.
For the NCEI archive, three levels are defined: 1) Level-0, raw LADCP and ancillary data streams of the down- and up-cast, 2) Level-1, processed LADCP and ancillary data streams for the down-, up-, and averaged cast, and 3) Level-2 science-ready subset of select parameters. Presently only Levels 0 and 1 will be archived since work continues for defining error associated with Level 2. Note, Level 1 data are "as processed" based on the processing code pertinent at that time. There is one processed file per station cast. The ancillary streams of Level-1 are the basic oceanographic variables of interest, and may also include a variety of additional fields associated with the processing.
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2233.512
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NCEI Accession 0205783 v1.1 was published.
2019-10-24T13:08:10Z
NCEI Accession 0205783 v1.1
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https://www.ncei.noaa.gov/archive/accession/0205783/1.1
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NCEI Accession 0205783 v1.1
published 2019-10-24T13:08:10Z
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ADCP
ADCP
Acoustic Doppler Current Profiler
The Acoustic Doppler Current Profiler (ADCP) measures currents beneath a ship while underway. Sound signals sent from the moving ship bounce back to receivers aboard the ship. This provides a profile of water movement relative to the ship-precise modern navigation, allowing the ship's motion to be subtracted from the data. These devices are also used on moorings and profilers and, along with acoustic backscattering, measure animal biomass. Particles in the path of the sound waves, mostly plankton, reflect a small part of the sound energy back toward receivers, allowing researchers to make remote estimates of the sizes and numbers of animals present in the water column. Before the 1970's, the most technologically advanced instrument used to measure water velocity was known as a Doppler speed log. This evolved into the first commercial ADCP, produced in the mid-1970's, which used averaging. Later in the 1970's, the first vessel-mounted ADCP was developed to measure water velocity more accurately and to allow measurement in range cells over a depth profile.
As instruments evolved, so did new techniques in Doppler signal processing. Initially, Doppler speed logs used simple analog signal processing methods, which are still used in some commercial speed logs today. However, the first ADCPs incorporated analog-to-digital signal conversion over a narrow communication bandwidth. Around 1990, this technique was developed into broadband signal processing. Since then, broadband ADCPs have been able to generate very accurate, real-time velocity measurements.
CTD
CTD
Conductivity-Temperature-Depth probe
R/V Melville
Hull Classification: AGOR-14.
It is a research vessel operated by Scripps Institution of Oceanography.
Commissioned on 10 July 1968 and the current status is active.
https://scripps.ucsd.edu/ships/melville