Acoustic Backscatter
Data Set (DS) | NMFS Office Of Habitat Conservation (OHC)GUID: gov.noaa.nmfs.inport:29606 | Updated: October 17, 2023 | Published / External
Summary
Short Citation
NMFS Office Of Habitat Conservation, 2024: Acoustic Backscatter, https://www.fisheries.noaa.gov/inport/item/29606.
Full Citation Examples
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.
Distribution Information
-
GeoTIFF
These files are geo-referenced tif images of the mosaicked backscatter data.
There are no constraints to the access of these data.
These data are constrained by uses for navigation. These data will not be used for navigation.
Child Items
No Child Items for this record.
Contact Information
Point of Contact
Jay V Lazar
jay.lazar@noaa.gov
410-375-0899
Metadata Contact
Jay V Lazar
jay.lazar@noaa.gov
410-375-0899
Extents
-77.53333333333° W,
-75.45555555556° E,
39.69166666667° N,
36.84444444444° S
The Chesapeake Bay and it's tidally influenced waters.
Item Identification
| Title: | Acoustic Backscatter |
|---|---|
| Short Name: | Acoustic Backscatter |
| Status: | In Work |
| 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. |
Keywords
Theme Keywords
| Thesaurus | Keyword |
|---|---|
| UNCONTROLLED | |
| None | Acoustic Survey |
| None | Backscatter |
| None | Chesapeake Bay |
| None | Habitat Mapping |
| None | Seafloor Mapping |
| None | Side Scan Sonar |
Physical Location
| Organization: | NMFS Office Of Habitat Conservation |
|---|---|
| City: | Annapolis |
| State/Province: | MD |
| Location Description: |
OHC Chesapeake Bay Office |
Data Set Information
| Data Set Scope Code: | Data Set |
|---|---|
| Data Set Type: | GIS dataset of raster files |
| Maintenance Frequency: | None Planned |
| Data Presentation Form: | Image (digital) |
| Data Set Credit: | NOAA Chesapeake Bay Office |
Support Roles
Data Steward
| Date Effective From: | 2011 |
|---|---|
| Date Effective To: | |
| Contact (Person): | Lazar, Jay V |
| Address: |
410 Severn Ave Annapolis, MD |
| Email Address: | jay.lazar@noaa.gov |
| Phone: | 410-375-0899 |
| Fax: | 410-267-5660 |
Distributor
| Date Effective From: | 2011 |
|---|---|
| Date Effective To: | |
| Contact (Person): | Lazar, Jay V |
| Address: |
410 Severn Ave Annapolis, MD |
| Email Address: | jay.lazar@noaa.gov |
| Phone: | 410-375-0899 |
| Fax: | 410-267-5660 |
Metadata Contact
| Date Effective From: | 2011 |
|---|---|
| Date Effective To: | |
| Contact (Person): | Lazar, Jay V |
| Address: |
410 Severn Ave Annapolis, MD |
| Email Address: | jay.lazar@noaa.gov |
| Phone: | 410-375-0899 |
| Fax: | 410-267-5660 |
Point of Contact
| Date Effective From: | 2011 |
|---|---|
| Date Effective To: | |
| Contact (Person): | Lazar, Jay V |
| Address: |
410 Severn Ave Annapolis, MD |
| Email Address: | jay.lazar@noaa.gov |
| Phone: | 410-375-0899 |
| Fax: | 410-267-5660 |
Extents
| Currentness Reference: | Collected Data is current, Synthesized Products are as current as the data behind them |
|---|
Extent Group 1
| Extent Description: |
The Chesapeake Bay is the Geographical Extent. |
|---|
Extent Group 1 / Geographic Area 1
| W° Bound: | -77.53333333333 | |
|---|---|---|
| E° Bound: | -75.45555555556 | |
| N° Bound: | 39.69166666667 | |
| S° Bound: | 36.84444444444 | |
| Description |
The Chesapeake Bay and it's tidally influenced waters. |
|
Extent Group 2
| Extent Description: |
Temporal Extent begins at the inception of the Chesapeake Bay Benthic Habitat Program. |
|---|
Extent Group 2 / Time Frame 1
| Time Frame Type: | Continuing |
|---|---|
| Start: | 2005 |
| 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. |
Access Information
| Security Class: | Unclassified |
|---|---|
| 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. |
Distribution Information
Distribution 1
| 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 Type (Deprecated): | GeoTIFF, .tif |
| Distribution Format: | GeoTIFF |
URLs
URL 1
| URL: | http://www.habitat.noaa.gov/chesapeakebay/gis/ |
|---|---|
| URL Type: |
Online Resource
|
| File Resource Format: | GIS formats |
| Description: |
The URL is to a public FTP maintained by NOAA Office of Habitat Conservation. |
Data Quality
| 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 |
|---|---|
| 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 |
| 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. |
|---|
Catalog Details
| Catalog Item ID: | 29606 |
|---|---|
| GUID: | gov.noaa.nmfs.inport:29606 |
| 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 Last Review Date: | 2016-03-11 |
| Metadata Review Frequency: | 1 Year |
| Metadata Next Review Date: | 2017-03-11 |