AFSC/RACE/GAP/McConnaughey: South Arctic Reconnaissance-2012-FFCPT
Alaska Fisheries Science Center
Data Set
(DS)
| ID: 27353
| Published / External
Created: 2015-09-22
|
Last Modified: 2024-01-15
Project (PRJ) | ID: 32487
ID: 27353
Data Set (DS)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | AFSC/RACE/GAP/McConnaughey: South Arctic Reconnaissance-2012-FFCPT |
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Short Name | AFSC/RACE/GAP/McConnaughey: South Arctic Reconnaissance-2012-FFCPT |
* Status | Completed |
Creation Date | |
Revision Date | |
• Publication Date | 2015-09-09 |
* » Abstract |
The Free Fall Cone Penetrometer Test (FFCPT) is a technique for geotechnical profiling of sub aqueous sediments. It was developed based on proven piezocone penetration test (CPT) theory and algorithms, with modifications to the manner of deployment and recovery. The instrument is designed to free fall through the water column, eventually impacting the seabed, recording penetration data at a high sample rate (2,000 Hz). This permits high resolution characterization of the sediment layering and material properties such as grain size and undrained shear strength. In addition to seabed characterization, the instrument can also be used for underway sound velocity profiling. |
* Purpose |
The broad scope of the Essential Fish Habitat (EFH) mandate requires an efficient process for describing and mapping the habitat needs of federally managed species. For example, research indicates surficial sediments affect the distribution and abundance of many groundfish species, yet traditional sampling with grabs and cores is impractical over areas as large as the Bering Sea shelf. Acoustic tools are suitable for large-scale surveying and show great promise as a substitute for direct-sampling methods, but they have not been proven useful for EFH purposes. Acoustic seafloor surveys using different sonar systems were conducted along strong gradients of groundfish abundance, as determined from many years of RACE bottom trawl survey catches at fixed stations. Ultimately, the value of acoustic backscatter as a habitat defining character will be judged based on the statistical association between normalized backscatter and fish density. The benefits and costs of the different acoustic systems will be compared with data from multiple passes along the survey tracklines. Sediment samples, video and infauna collected along each trackline will provide additional biological and geological information for the analyses. Immediately following the Fishpac project during the summer of 2012, a single trackline was made between Dutch Harbor and Kotzebue Sound and various types of data were collected along the transit to get a glimpse at the seafloor habitat along the way. The points in this feature data set represent locations where the FFCPT was either deployed for seabed sampling as a groundtruthing tool or for SV profiling along the transit. |
Notes |
Loaded by FGDC Metadata Uploader, batch 7097, 09-22-2015 16:10 The following FGDC sections are not currently supported in InPort, but were preserved and will be included in the FGDC export: - Spatial Reference Information (FGDC:spref), - Spatial Data Organization Information (FGDC:spdoinfo) |
Other Citation Details | |
• Supplemental Information | |
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Keywords
Theme Keywords
Thesaurus | Keyword |
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ISO 19115 Topic Category | geoscientificInformation |
ISO 19115 Topic Category | oceans |
None | FFCPT, groundtruthing |
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* Spatial Keywords
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None | Bering Sea |
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Physical Location
• » Organization | Alaska Fisheries Science Center |
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• » City | Seattle |
• » State/Province | WA |
• Country | USA |
• » Location Description |
Data Set Information
* Data Set Scope Code | Data Set |
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• Data Set Type | |
• Maintenance Frequency | None Planned |
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» Data Presentation Form | Map (digital) |
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Support Roles
* » Support Role | Data Steward |
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* » Date Effective From | 2015 |
Date Effective To | |
Person | McConnaughey, Bob |
Email Address | bob.mcconnaughey@noaa.gov |
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* » Support Role | Distributor |
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* » Date Effective From | 2015 |
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Organization | Alaska Fisheries Science Center (AFSC) |
Address |
7600 Sand Point Way N.E., Building 4 Seattle, WA 98115 USA |
Email Address | afsc.webmaster@noaa.gov |
Phone | (206) 526-4000 |
Fax | (206) 526-4004 |
Mobile | |
URL | https://www.fisheries.noaa.gov/about/alaska-fisheries-science-center |
Business Hours | 0700-1700 Pacific Time |
Contact Instructions |
* » Support Role | Metadata Contact |
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* » Date Effective From | 2015-09-22 |
Date Effective To | |
Person | Intelmann, Steve |
Address |
7600 Sand Point Way N.E., Building 4 Seattle, WA 98115 USA |
Email Address | steve.intelmann@noaa.gov |
Phone | (206) 526-4157 |
Fax | (206) 526-6723 |
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* » Support Role | Point of Contact |
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* » Date Effective From | 2015-09-22 |
Date Effective To | |
Person | Intelmann, Steve |
Address |
7600 Sand Point Way N.E., Building 4 Seattle, WA 98115 USA |
Email Address | steve.intelmann@noaa.gov |
Phone | (206) 526-4157 |
Fax | (206) 526-6723 |
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Extents
Currentness Reference | Data acquired during 3 day transit |
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Extent Group 1
Extent Description |
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Extent Group 1 / Geographic Area 1
* » W° Bound | -167.918391 |
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* » E° Bound | -166.409719 |
* » N° Bound | 59.359123 |
* » S° Bound | 55.996892 |
* » Description |
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Extent Group 1 / Time Frame 1
* » Time Frame Type | Range |
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* » Start | 2012-08-02 |
End | 2012-08-04 |
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Access Information
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* » Security Class | Unclassified |
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• Data Access Policy | |
» Data Access Procedure |
unknown |
• » Data Access Constraints |
None |
• Data Use Constraints |
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Metadata Use Constraints |
The United States Government shall not be held liable for improper or incorrect use of data described and/or contained herein. These data and related graphics are not legal documents and are not intended to be used as such. The Alaska Fisheries Science Center gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. Spatial information may not meet National Map Accuracy Standards. The information contained in these data is dynamic and may change over time. Original data were compiled from various sources. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and consistent within the limitations of geospatial data in general and these data in particular. It is strongly recommended that these data are directly acquired from an Alaska Fisheries Science Center server and not indirectly through other sources which may have changed the data in some way. Although these data have been used (processed) successfully on a computer system at the Alaska Fisheries Science Center, no warranty expressed or implied is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. |
Distribution Information
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» Download URL | https://www.ncei.noaa.gov |
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Technical Environment
Description |
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.0.4322 |
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Data Management
» Have Resources for Management of these Data Been Identified? | No |
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» Approximate Percentage of Budget for these Data Devoted to Data Management | Unknown |
» Do these Data Comply with the Data Access Directive? | No |
» Is Access to the Data Limited Based on an Approved Waiver? | Yes |
» If Distributor (Data Hosting Service) is Needed, Please Indicate | Yes |
» Approximate Delay Between Data Collection and Dissemination | Unknown |
» If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed |
No delay |
» Actual or Planned Long-Term Data Archive Location | NCEI-MD |
» Approximate Delay Between Data Collection and Archiving | unknown |
» How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive? |
IT Security and Contingency Plan for the system establishes procedures and applies to the functions, operations, and resources necessary to recover and restore data as hosted in the Western Regional Support Center in Seattle, Washington, following a disruption. |
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Process Step Number | 1 |
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» Description |
The FFCPT was deployed from the NOAA Ship FAIRWEATHER with aid of a line pulling sheave to help the device approach terminal velocity as it falls through the water column. Instrument on-bottom times were called to the Sonar Lab from the fantail and a position was marked within QINSy navigation software. These positions were then extracted from the QINSy database and entered into a spreadsheet format and then imported into ArcGIS as a vector point feature dataset. |
Process Date/Time | 2012-09-01 00:00:00 |
Process Contact | POP.Information@noaa.gov (Mail_Address) |
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Related Items
Item Type | Relationship Type | Title |
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Catalog Details
Catalog Item ID | 27353 |
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Metadata Record Created By | Nancy Roberson |
Metadata Record Created | 2015-09-22 16:10+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2024-01-15 12:08+0000 |
Metadata Record Published | 2019-05-31 |
Owner Org | AFSC |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2019-05-31 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2020-05-31 |
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