Habitat Mapping Cruise - Hudson Canyon (HB0904, EK60)

Metadata Updated: February 8, 2018

Objectives are to: 1) perform multibeam mapping of transitional and deepwater habitats in Hudson Canyon (off New Jersey) with the National Institute of Undersea Science and Technology (NIUST) AUV Eagle Ray. About one half of the shelf portion of the canyon was mapped with Eagle Ray between 2007 aboard Ronald H. Brown and 2008 aboard Henry B. Bigelow. We seek to complete the mapping of the shelf segment of the Hudson Canyon on this cruise; 2) perform visual ground truthing of areas up to 1,000 m deep in Hudson Canyon using the NIUST AUV Mola Mola. In particular, we will be investigating ravines in canyon walls mapped by Eagle Ray for vulnerable deepwater coral and sponge communities, tilefish pueblo villages, and suspected areas of methane blowouts in the canyon bottom for vulnerable chemosynthetic communities. Such vulnerable communities may be at risk due to overlap with deepsea red crab, witch flounder, and/or monkfish distributions. The intention is to detect and locate vulnerable communities and also to gain experience for development of protocols for further exploration for vulnerable deepwater habitats in canyon and slope areas; 3) perform a series of CTD/rosette sampler casts down the canyon to a maximum depth of about 1,200 m in the canyon axis. This will provide a near-synoptic, 3-dimensional view of water mass interaction around Hudson Canyon and allow collection of water samples at multiple depths for dissolved methane analysis. The latter will help resolve the source of elevated methane previously detected in deep water within Hudson Canyon. Possible discovery of a local seep raises the possibility of a chemosynthetic community supported by that feature; and 4) collect ME70 multibeam sonar data for purposes of benthic mapping in order to resolve some issues encountered during summer 2008 cruises for that purpose.

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Dates

Metadata Date May 30, 2017
Metadata Created Date September 27, 2015
Metadata Updated Date February 8, 2018
Reference Date(s) August 24, 2009 (creation)
Frequency Of Update notPlanned

Metadata Source

Harvested from NOAA CSW Harvest Source

Additional Metadata

Resource Type Series
Metadata Date May 30, 2017
Metadata Created Date September 27, 2015
Metadata Updated Date February 8, 2018
Reference Date(s) August 24, 2009 (creation)
Responsible Party NEFSC (Principal Investigator)
Contact Email
Access Constraints Cite as: Northeast Fisheries Science Center (2009): Water Column Sonar Data Collection (HB0904, EK60). National Centers for Environmental Information, NOAA. doi:10.7289/V56Q1V6M [access date], Resource may not be available for up to one year after initial collection.
Bbox East Long -71.3162783333
Bbox North Lat 41.614055
Bbox South Lat 38.7606257813
Bbox West Long -75.1326244149
Coupled Resource
Frequency Of Update notPlanned
Guid gov.noaa.ngdc.mgg.wcd:HB0904_EK60
Harvest Object Id 41772af9-bb1b-4ce3-8225-5a5bb3885f1b
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence 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., 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.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System urn:ogc:def:crs:EPSG:4326
Spatial Harvester True
Temporal Extent Begin 2009-08-24T12:40:00
Temporal Extent End 2009-09-08T13:58:48

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