gov.noaa.ngdc.mgg.wcd:MGL1407_EM122
eng; USA
utf8
series
Water Column Sonar Series-Level Metadata
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
2020-10-15
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
curve
1010
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
Vertical Datum: Unknown
Vertical Datum: Unknown
EM122 Water Column Sonar Data Collected During MGL1407
2014-08-22
creation
2015-02-01
publication
NOAA National Centers for Environmental Information
MGL1407_EM122
NOAA National Centers for Environmental Information
NCEI Metadata ID:gov.noaa.ngdc.mgg.wcd:MGL1407_EM122
NOAA National Centers for Environmental Information
custodian
NOAA National Centers for Environmental Information
publisher
Deborah Hutchinson
USGS
Scientist
508-457-2263
384 Woods Hole Road
Woods Hole
MA
02543-1598
USA
dhutchinson@usgs.gov
principalInvestigator
Rolling Deck to Repository (R2R)
author
MGL1407 U.S. Extended Continental Shelf (ECS) Survey: Atlantic (MGL1407, EM122)
This data is available to the public for a wide variety of uses including scientific research and analysis.
completed
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 Column Sonar Data Manager
(303) 497-4742
325 Broadway, Mail Code E/NE42
Boulder
CO
80305-3328
USA
wcd.info@noaa.gov
pointOfContact
notPlanned
Earth Science > Oceans > Ocean Acoustics > Acoustic Scattering
Earth Science > Oceans > Aquatic Sciences > Fisheries
Earth Science > Oceans > Ocean Acoustics
Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Pelagic
Earth Science > Biosphere > Ecosystems > Marine Ecosystems
Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Benthic
Earth Science > Biosphere > Ecosystems > Aquatic Ecosystems
Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry
Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography
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
North Atlantic Ocean
place
International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)
2010-08-24
revision
International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)
https://iho.int/
International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas" publication S-23)
Publication of Sea Areas is maintained by IHO.
information
resourceProvider
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
Vertical Location > Water Column
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
In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > WCMS > Water Column Mapping System
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
otherRestrictions
Cite as: Rolling Deck to Repository (R2R). 2014. 'EM122 Water Column Sonar Data Collected During MGL1407'. NOAA National Centers for Environmental Information. [access date]
otherRestrictions
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.
otherRestrictions
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.
These data are considered raw and have not been subjected to the NOAA's quality control or quality assurance procedures. They are released for limited public use as preliminary data to be used only with appropriate caution. 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.
Not subject to copyright protection within the United States.
otherRestrictions
Resource may not be available for up to one year after initial collection.
https://doi.org/10.7284/902696
largerWorkCitation
operation
MGL1407
largerWorkCitation
operation
eng; USA
oceans
geoscientificInformation
-76.1913117
-65.76916
30.67700745
39.4096167
2014-08-22T09:38:02
2014-09-12T08:22:05
Trackline
physicalMeasurement
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
Free
Contact the NCEI Water Column Sonar Data Manager to order data.
Kongsberg/Simrad instrument files (.raw or .wcd)
1
Kongsberg/Simrad .raw files are generated by ME70, EK60 or ES60 instruments. They contain power and optionally angular position data with each beam/frequency identified by an independent channel. See the Simrad interface specification manual for further information. The .wcd files are generated by Kongsberg EM302 or EM122 instruments. See Kongsberg documentation for more information.
http://maps.ngdc.noaa.gov/viewers/water_column_sonar/
HTTPS
Water Column Sonar Data Map Viewer
Interactive map viewer to allow discovery and access to water column sonar data
search
https://www.ngdc.noaa.gov/mgg/wcd/
HTTPS
Water Column Sonar Data Archive Homepage
Web page containing information on the water column sonar data archive.
information
collectionHardware
Instrument calibration information
series
Horizontal Positional Accuracy
Positional accuracy dependent on navigation GPS, ship motion correction, and sound velocity profile accuracy.
true
Vertical Positional Accuracy
Vertical accuracy is dependent on navigation GPS and ship motion corrections.
true
Raw unprocessed data files
2014-08-22T09:38:02
Deborah Hutchinson
USGS
Scientist
508-457-2263
384 Woods Hole Road
Woods Hole
MA
02543-1598
USA
dhutchinson@usgs.gov
principalInvestigator
series
Kongsberg EM122 Multibeam Echosounder
EM122
Kongsberg Maritime
http://www.km.kongsberg.com/ks/web/nokbg0240.nsf/AllWeb/01FB0F22974EA50FC125715E002B2143?OpenDocument
Kongsberg EM122 information
Information on the Kongsberg EM122 multibeam sonar system
information
resourceProvider
Kongsberg EM122
Multibeam Echosounder
EM 122 multibeam echosounder is a high performance echosounder for deep water mapping with up to 288 simultaneous beams. The EM 122 is designed to perform seabed mapping to full ocean depth with an unsurpassed resolution, coverage and accuracy. The system is cost effective, reliable, and easily operated. The design of the EM 122 is based on more than 50 years of hydrographic experience with echo sounders, sonars and underwater positioning for civilian and military use. It is the latest model in a series of deep sea multibeam echo sounders started with the EM 12 in 1990 and followed by the EM 121 and the EM 120, of which about 40 systems are operational. It uses the same transducers as in the EM 120 but with new electronics and software. Compared with the EM 120 the EM 122 has up to four times the resolution in terms of sounding density through inclusion of multiping capability and more than twice the number of detections per swath. High density signal processing is a major improvement, to keep the acoustic footprint size small even for the outer beams in the swath. In typical ocean depths a sounding spacing of about 50 m across and along is achievable. The achievable swath width of the EM 122 is in the order of 30,000 m, or about 25% more than possible with the EM 120. This is obtained by using long FM chirps which gains about 15 dB in signal to noise ratio compared to CW pulses. The EM 122 is a complete system. All necessary sensor interfaces, data displays for quality control and sensor calibration, seabed visualization, and data logging are a standard part of the system, as is integrated seabed acoustical imaging capability (side scan). Including a higher frequency multibeam echo sounder such as EM 710 with the EM 122 system can give a total system solution meeting the strictest IHO requirements for all water depths. As proven with the EM 120, an accuracy of better than 0.2% of depth in deep waters is readily achievable with the EM 122.
MGL1407_EM122
completed
R/V Marcus G. Langseth
Marcus G. Langseth
The Marcus G. Langseth serves as the national seismic research facility for the United States academic research community. The R/V Marcus G. Langseth's unique seismic capability allows it to provide both 2D and 3D maps of the earth's structure miles below the seafloor. Utilizing the vessel's other capabilities, expeditions have collected sediment cores for understanding climate variations throughout the Earth'Âs history, sampled seawater for determining physical and chemical properties of the oceans, and deployed remotely operated vehicles (ROVs) for studying submarine volcanoes. Scientists and researchers from all over the world are encouraged to participate in research programs aboard the Langseth.
Lamont-Doherty Earth Observatory - Office of Marine Operations
(845) 359-2900
P.O. Box 1000
61 Route 9W
Palisades
NY
10964-1000
USA
director@ldeo.columbia.edu
resourceProvider
Kongsberg EM122 Multibeam Echosounder
EM122
Kongsberg Maritime
http://www.km.kongsberg.com/ks/web/nokbg0240.nsf/AllWeb/01FB0F22974EA50FC125715E002B2143?OpenDocument
Kongsberg EM122 information
Information on the Kongsberg EM122 multibeam sonar system
information
resourceProvider
Kongsberg EM122
Multibeam Echosounder
EM 122 multibeam echosounder is a high performance echosounder for deep water mapping with up to 288 simultaneous beams. The EM 122 is designed to perform seabed mapping to full ocean depth with an unsurpassed resolution, coverage and accuracy. The system is cost effective, reliable, and easily operated. The design of the EM 122 is based on more than 50 years of hydrographic experience with echo sounders, sonars and underwater positioning for civilian and military use. It is the latest model in a series of deep sea multibeam echo sounders started with the EM 12 in 1990 and followed by the EM 121 and the EM 120, of which about 40 systems are operational. It uses the same transducers as in the EM 120 but with new electronics and software. Compared with the EM 120 the EM 122 has up to four times the resolution in terms of sounding density through inclusion of multiping capability and more than twice the number of detections per swath. High density signal processing is a major improvement, to keep the acoustic footprint size small even for the outer beams in the swath. In typical ocean depths a sounding spacing of about 50 m across and along is achievable. The achievable swath width of the EM 122 is in the order of 30,000 m, or about 25% more than possible with the EM 120. This is obtained by using long FM chirps which gains about 15 dB in signal to noise ratio compared to CW pulses. The EM 122 is a complete system. All necessary sensor interfaces, data displays for quality control and sensor calibration, seabed visualization, and data logging are a standard part of the system, as is integrated seabed acoustical imaging capability (side scan). Including a higher frequency multibeam echo sounder such as EM 710 with the EM 122 system can give a total system solution meeting the strictest IHO requirements for all water depths. As proven with the EM 120, an accuracy of better than 0.2% of depth in deep waters is readily achievable with the EM 122.