Acoustic Backscatter
NMFS Office Of Habitat Conservation
Data Set
(DS)
| ID: 29606
| Published / External
Created: 2015-12-07
|
Last Modified: 2023-10-17
Project (PRJ) | ID: 26596
ID: 29606
Data Set (DS)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | Acoustic Backscatter |
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Short Name | Acoustic Backscatter |
* Status | In Work |
Creation Date | |
Revision Date | |
• Publication Date | |
* » Abstract |
The Acoustic Backscatter data sets are GIS raster images of the range of backscatter amplitudes projected onto a colormap from multibeam echosounder amplitude data or side scan sonar amplitude data. These amplitude data from individual datafiles are mosaicked into a single raster. |
* Purpose |
The purpose of the acoustic backscatter data is to provide the user with a overall map of the area acoustically surveyed and to depict the survey in a manner such that the user may discern seabed substrates, habitats, and features. |
Notes | |
Other Citation Details | |
• Supplemental Information | |
DOI (Digital Object Identifier) | |
DOI Registration Authority | |
DOI Issue Date |
Keywords
Theme Keywords
Thesaurus | Keyword |
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None | Acoustic Survey |
None | Backscatter |
None | Chesapeake Bay |
None | Habitat Mapping |
None | Seafloor Mapping |
None | Side Scan Sonar |
Temporal Keywords
Thesaurus | Keyword |
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* Spatial Keywords
Thesaurus | Keyword |
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Stratum Keywords
Thesaurus | Keyword |
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Instrument Keywords
Thesaurus | Keyword |
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Platform Keywords
Thesaurus | Keyword |
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Physical Location
• » Organization | NMFS Office Of Habitat Conservation |
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• » City | Annapolis |
• » State/Province | MD |
• Country | |
• » Location Description |
OHC Chesapeake Bay Office |
Data Set Information
* Data Set Scope Code | Data Set |
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• Data Set Type | GIS dataset of raster files |
• Maintenance Frequency | None Planned |
Maintenance Note | |
» Data Presentation Form | Image (digital) |
• Entity Attribute Overview | |
Entity Attribute Detail Citation | |
Entity Attribute Detail URL | |
Distribution Liability | |
Data Set Credit | NOAA Chesapeake Bay Office |
Support Roles
* » Support Role | Data Steward |
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* » Date Effective From | 2011 |
Date Effective To | |
Person | Lazar, Jay V |
Address |
410 Severn Ave Annapolis, MD |
Email Address | jay.lazar@noaa.gov |
Phone | 410-375-0899 |
Fax | 410-267-5660 |
Mobile | |
URL | |
Business Hours | |
Contact Instructions |
* » Support Role | Distributor |
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* » Date Effective From | 2011 |
Date Effective To | |
Person | Lazar, Jay V |
Address |
410 Severn Ave Annapolis, MD |
Email Address | jay.lazar@noaa.gov |
Phone | 410-375-0899 |
Fax | 410-267-5660 |
Mobile | |
URL | |
Business Hours | |
Contact Instructions |
* » Support Role | Metadata Contact |
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* » Date Effective From | 2011 |
Date Effective To | |
Person | Lazar, Jay V |
Address |
410 Severn Ave Annapolis, MD |
Email Address | jay.lazar@noaa.gov |
Phone | 410-375-0899 |
Fax | 410-267-5660 |
Mobile | |
URL | |
Business Hours | |
Contact Instructions |
* » Support Role | Point of Contact |
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* » Date Effective From | 2011 |
Date Effective To | |
Person | Lazar, Jay V |
Address |
410 Severn Ave Annapolis, MD |
Email Address | jay.lazar@noaa.gov |
Phone | 410-375-0899 |
Fax | 410-267-5660 |
Mobile | |
URL | |
Business Hours | |
Contact Instructions |
* » Support Role | |
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* » Date Effective From | |
Date Effective To | |
* » Contact | |
* Contact Instructions |
* » Support Role | |
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* » Date Effective From | |
Date Effective To | |
* » Contact | |
* Contact Instructions |
* » Support Role | |
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* » Date Effective From | |
Date Effective To | |
* » Contact | |
* Contact Instructions |
Extents
Currentness Reference | Collected Data is current, Synthesized Products are as current as the data behind them |
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Extent Group 1
Extent Description |
The Chesapeake Bay is the Geographical Extent. |
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Extent Group 1 / Geographic Area 1
* » W° Bound | -77.53333333333 |
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* » E° Bound | -75.45555555556 |
* » N° Bound | 39.69166666667 |
* » S° Bound | 36.84444444444 |
* » Description |
The Chesapeake Bay and it's tidally influenced waters. |
Extent Group 1 / Vertical Extent
EPSG Code | |
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Vertical Minimum | |
Vertical Maximum |
Extent Group 1 / Time Frame
* » Time Frame Type | |
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* » Start | |
End | |
Alternate Start as of Info | |
Alternate End as of Info | |
Description |
Extent Group 2
Extent Description |
Temporal Extent begins at the inception of the Chesapeake Bay Benthic Habitat Program. |
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Extent Group 2 / Geographic Area
* » W° Bound | |
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* » E° Bound | |
* » N° Bound | |
* » S° Bound | |
* » Description |
Extent Group 2 / Vertical Extent
EPSG Code | |
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Vertical Minimum | |
Vertical Maximum |
Extent Group 2 / Time Frame 1
* » Time Frame Type | Continuing |
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* » Start | 2005 |
End | |
Alternate Start As Of Info | |
Alternate End As Of Info | |
Description |
Chesapeake Bay Benthic Habitat Data/Products collection/synthesis began in 2005 in continue to the present. Products can incorporate external datasets that originate prior to the 2005 start date of our program. |
Spatial Information
Spatial Resolution
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Vertical Distance | |
Vertical Distance Units | |
Equivalent Scale Denominator | |
Level of Detail Description |
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Spatial Representation
Grid Representation Used? | |
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Vector Representation Used? | |
Text / Table Representation Used? | |
TIN Representation Used? | |
Stereo Model Representation Used? | |
Video Representation Used? |
Grid Representation
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Vector Representation
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Complex Object Present? | |
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Composite Object Present? | |
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Curve Object Present? | |
Curve Object Count | |
Point Object Present? | |
Point Object Count | |
Solid Object Present? | |
Solid Object Count | |
Surface Object Present? | |
Surface Object Count |
Reference Systems
Reference System
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Horizontal Resolution |
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Vertical Resolution |
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Access Information
Data License | |
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Data License URL | |
Data License Statement | |
* » Security Class | Unclassified |
* Security Classification System | |
Security Handling Description | |
• Data Access Policy | |
» Data Access Procedure |
To access these data, visit http://www.habitat.noaa.gov/chesapeakebay/gis/ |
• » Data Access Constraints |
There are no constraints to the access of these data. |
• Data Use Constraints |
These data are constrained by uses for navigation. These data will not be used for navigation. |
Metadata Access Constraints | |
Metadata Use Constraints |
Distribution Information
Start Date | |
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» Download URL | http://www.habitat.noaa.gov/chesapeakebay/gis/acoustic_backscatter_database |
Distributor | |
File Name | *.tif/*.tfw |
Description |
These files are geo-referenced tif images of the mosaicked backscatter data. |
File Date/Time | |
File Type (Deprecated) | GeoTIFF, .tif |
Distribution Format | GeoTIFF |
File Size | |
Application Version | |
Compression | |
Review Status |
Start Date | |
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End Date | |
» Download URL | |
Distributor | |
File Name | |
Description | |
File Date/Time | |
File Type | |
FGDC Content Type | |
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Application Version | |
Compression | |
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» Download URL | |
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File Name | |
Description | |
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Compression | |
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Start Date | |
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End Date | |
» Download URL | |
Distributor | |
File Name | |
Description | |
File Date/Time | |
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FGDC Content Type | |
File Size | |
Application Version | |
Compression | |
Review Status |
URLs
URL | http://www.habitat.noaa.gov/chesapeakebay/gis/ |
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Name | |
URL Type | Online Resource |
File Resource Format | GIS formats |
Description |
The URL is to a public FTP maintained by NOAA Office of Habitat Conservation. |
URL | |
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Description |
URL | |
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URL | |
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Description |
Activity Log
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Description |
Issues
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Issue |
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Author | |
Issue |
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Author | |
Issue |
Technical Environment
Description |
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Data Quality
Representativeness | |
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Accuracy | |
Analytical Accuracy | |
Horizontal Positional Accuracy | |
Vertical Positional Accuracy | |
Quantitation Limits | |
Bias | |
Comparability | |
Completeness Measure | |
Precision | |
Analytical Precision | |
Field Precision | |
Sensitivity | |
Detection Limit | |
Completeness Report | |
Conceptual Consistency | |
» Quality Control Procedures Employed |
A Saturation Monitor or Voltage display is observed for the amplitude values to determine whether the dynamic range of the signal is being limited. |
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? | No |
» If Distributor (Data Hosting Service) is Needed, Please Indicate | |
» Approximate Delay Between Data Collection and Dissemination | 30 days |
» If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed |
NA |
» Actual or Planned Long-Term Data Archive Location | NCEI-CO |
» Approximate Delay Between Data Collection and Archiving | 180 days |
» How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive? |
Storage redundancy is the protocol in house. |
Lineage
» Lineage Statement |
Raw backscatter data recorded from multibeam intensity and side scan sonar amplitudes were normalized through either Caris SIPS, Fledermaus, or SonarWizMap processing software. The processed data files were mosaicked into a single image and exported as a GEOTiff. |
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Sources
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Scale Denominator |
Process Steps
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Source |
Acquisition Information
Instruments
Instrument Unavailable Reason |
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Identifier | |
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Platforms
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FAQs
Date | |
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Question | |
Answer |
Child Items
Rubric scores updated every 15m
Score | Type | Title |
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Related Items
Item Type | Relationship Type | Title |
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Catalog Details
Catalog Item ID | 29606 |
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Metadata Record Created By | Jay V Lazar |
Metadata Record Created | 2015-12-07 16:02+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2023-10-17 16:12+0000 |
Metadata Record Published | 2016-03-11 |
Owner Org | OHC |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2016-03-11 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2017-03-11 |
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