ISO Table View

Metadata Identifier: gov.noaa.nmfs.inport:32302

Aggregation Info | Bands | Citations | Constraints | Coverage Descriptions | Dimensions | Extents | Formats | Geographic Bounding Box
Georectified Information | Georeferenceable Information | Identifiers | Instruments | Mediums | OnlineResources | Operations
Platforms | Process Steps | Range Elements | Reference Systems | Responsible Parties | Series | Sources | Spatial Grids | Temporal Extents

MD_DataIdentification

Count	Component	Title	Abstract
1		AFSC/RACE/GAP/McConnaughey: QTC View Study- 1997- GIS	In early 1996, Quester Tangent Corporation (QTC) and the National Marine Fisheries Service (NMFS) Alaska Fisheries Science Center (in Seattle) formed a strategic alliance to apply QTC seabed classification technology to the problem of groundfish habitat descriptions. The Bering Sea supports about 300 fish species, many of which are demersal species. This stock supports sizeable fisheries, as indicated by landings at the Bering Sea port of Dutch Harbor in excess of 579 million pounds in 1996 and 678 million pounds in 1999 (the highest in the U.S.). By comparison, in 1981 the landing at Dutch Harbor was 73 million pounds. This rapid increase in catch highlights the need for effective management to ensure sustainability. After connecting the QTC VIEW full waveform acquisition system (ISAH-S) to the Simrad EK-500 scientific echosounder on the NOAA ship Miller Freeman, over 9,000 miles of track line data were collected in the eastern Bering Sea between June and August 1999. The raw data consist of digital echo traces of the full water column and seabed substrate. They were collected at two frequencies, 38 kHz and 120 kHz. Based on an average rate of one ping recorded per second, approximately four million individual echoes at each frequency were obtained. The data within this raster set represent the results of processing channel 38_12, which incorporated the 38 kHz frequency data, using a reference depth of 90 meters and stacks of 50 echoes to create a single classified data point through the PCA analysis. A rasterized grid was created from each Q value and then grid stacked to allow RGB representation of each data point in continous Q- space as opposed to categorical class.

SV_Identification

none found

CI_Citation

Count	Component	Title	Date	Citation Identifier
1		AFSC/RACE/GAP/McConnaughey: QTC View Study- 1997- GIS		32302
1	No Title	Global Change Master Directory (GCMD) Data Center Keywords	2017-04-24
1		InPort
1		NOAA Data Management Plan (DMP)		32302
2		NOAA/NMFS/EDM

CI_Series

none found

CI_ResponsibleParty

Count	Component	Individual	Organization	Position	Email	Role	Linkage
2							https://www.fisheries.noaa.gov/inport/item/32302
1			Alaska Fisheries Science Center			resourceProvider	https://www.afsc.noaa.gov
1			Alaska Fisheries Science Center		afsc.webmaster@noaa.gov	originator	https://www.fisheries.noaa.gov/about/alaska-fisheries-science-center
1	GCMD Landing Page		Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)			custodian	https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
1		McConnaughey, Bob			bob.mcconnaughey@noaa.gov	pointOfContact
1		McConnaughey, Bob			bob.mcconnaughey@noaa.gov	custodian

CI_OnlineResource

Count	Component	Linkage	Name	Description	Function
1		https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords	GCMD Keyword Forum Page	Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. 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
1		https://www.afsc.noaa.gov	Website	Website for this organization	information
1		https://www.fisheries.noaa.gov/about/alaska-fisheries-science-center	Alaska Fisheries Science Center Website	AKFSC Home Page	information
1		https://www.fisheries.noaa.gov/inport/item/32302	Full Metadata Record	View the complete metadata record on InPort for more information about this dataset.	information
1		https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/afsc/dmp/pdf/32302.pdf	NOAA Data Management Plan (DMP)	NOAA Data Management Plan for this record on InPort.	information

MD_Identifier or RS_Identifier

Count	Component	Code
2		32302
1		More elaborate than a keyword.

EX_Extent

			Bounding Box				Temporal Extent
Count	Component	Description	West	East	North	South	Start	End
1			-178.690796	-160.316406	63.17572	53.923279	1999-06-01	1999-08-01

EX_GeographicBoundingBox

Count	Component	West	East	North	South
1		-178.690796	-160.316406	63.17572	53.923279

EX_TemporalExtent

Count	Component	Start	End
1		1999-06-01	1999-08-01

MD_Format

none found

MD_Medium

none found

MD_Constraints

Count	Component	Use Limitation
1		NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.

MD_ReferenceSystem

none found

MD_GridSpatialRepresentation

none found

MD_Georeferenceable or MI_Georeferenceable

none found

MD_Georectified or MI_Georectified

none found

MD_Dimension

none found

MD_CoverageDescription or MI_CoverageDescription

none found

MD_Band or MI_Band

none found

MI_RangeElementDescription

none found

MD_AggregateInformation

Count	Component	Title	Code	Association Type Code
1		NOAA Data Management Plan (DMP)		crossReference

LE_Source or LI_Source

none found

LE_ProcessStep or LI_ProcessStep

none found

MI_Operation

none found

MI_Platform

none found

MI_Instrument

none found