Massachusetts Bay - Internal wave packets digitized from SAR imagery and intersected with a bathymetrically derived slope surface
Data Set (DS) | National Centers for Coastal Ocean Science (NCCOS)GUID: gov.noaa.nmfs.inport:39345 | Updated: May 30, 2023 | Published / External
Summary
Short Citation
National Centers for Coastal Ocean Science, 2024: Massachusetts Bay - Internal wave packets digitized from SAR imagery and intersected with a bathymetrically derived slope surface, https://www.fisheries.noaa.gov/inport/item/39345.
Full Citation Examples
This feature class contains internal wave packets digitized from SAR imagery and intersected with a bathymetrically derived slope surface for Massachusetts Bay. The internal wave packets were digitized at a 1:350,000 scale and the degree slope surface had a 360 x 360 meter resolution.
Distribution Information
No Distributions available.
Access Constraints:None.
None. Acknowledgement of the National Oceanic and AtmosphericAdministration, Center for Coastal Monitoring and Assessment, Biogeography Program would be appreciated in products derived from these data.
Controlled Theme Keywords
imageryBaseMapsEarthCover, oceans
Child Items
Type | Title |
---|---|
Entity | InternalWave_Intersected_Slope |
Contact Information
Point of Contact
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Metadata Contact
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Extents
-70.783468° W,
-69.587834° E,
42.762758° N,
41.530988° S
1998-05-14 - 2003-09-29
Item Identification
Title: | Massachusetts Bay - Internal wave packets digitized from SAR imagery and intersected with a bathymetrically derived slope surface |
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Short Name: | iw_intersect_slope |
Status: | Completed |
Publication Date: | 2006 |
Abstract: |
This feature class contains internal wave packets digitized from SAR imagery and intersected with a bathymetrically derived slope surface for Massachusetts Bay. The internal wave packets were digitized at a 1:350,000 scale and the degree slope surface had a 360 x 360 meter resolution. |
Purpose: |
Created to support the biogeographic assessment of Stellwagen Bank National Marine Sanctuary. |
Notes: |
636 |
Supplemental Information: |
Jackson, C.R. and J.R. Apel. 2004. Synthetic Aperture Radar Marine User's Manual. NOAA NESDIS: Washington, D.C. pp. 464. Available from: http://www.orbit.nesdis.noaa.gov/sod/mecb/sar/sarmanual.html |
Keywords
Theme Keywords
Thesaurus | Keyword |
---|---|
ISO 19115 Topic Category |
imageryBaseMapsEarthCover
|
ISO 19115 Topic Category |
oceans
|
UNCONTROLLED | |
NOS Data Explorer Topic Category | Environmental Monitoring |
None | Bathymetry |
None | Internal Waves |
None | SAR |
None | Slope |
None | Synthetic Aperture Radar |
Temporal Keywords
Thesaurus | Keyword |
---|---|
UNCONTROLLED | |
None | 1998-2003 |
Spatial Keywords
Thesaurus | Keyword |
---|---|
UNCONTROLLED | |
None | Massachusetts Bay |
None | Stellwagen Bank National Marine Sanctuary |
Physical Location
Organization: | National Centers for Coastal Ocean Science |
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City: | Silver Spring |
State/Province: | MD |
Data Set Information
Data Set Scope Code: | Data Set |
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Maintenance Frequency: | None Planned |
Data Presentation Form: | vector digital data |
Distribution Liability: |
These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data have been used by NOAA, no warranty, expressed or implied, is made by NOAA as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by NOAA in the use of these data or related materials. NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA can not assume liability for and damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system. |
Data Set Credit: | National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program: http://ccma.nos.noaa.gov/about/biogeography/ |
Support Roles
Data Steward
Date Effective From: | 2006 |
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Date Effective To: | |
Contact (Position): | NCCOS Scientific Data Coordinator |
Email Address: | NCCOS.data@noaa.gov |
Distributor
Date Effective From: | 2006 |
---|---|
Date Effective To: | |
Contact (Position): | NCCOS Scientific Data Coordinator |
Email Address: | NCCOS.data@noaa.gov |
Metadata Contact
Date Effective From: | 2006 |
---|---|
Date Effective To: | |
Contact (Position): | NCCOS Scientific Data Coordinator |
Email Address: | NCCOS.data@noaa.gov |
Point of Contact
Date Effective From: | 2006 |
---|---|
Date Effective To: | |
Contact (Position): | NCCOS Scientific Data Coordinator |
Email Address: | NCCOS.data@noaa.gov |
Principal Investigator
Date Effective From: | 2006 |
---|---|
Date Effective To: | |
Contact (Person): | Costa, Bryan |
Email Address: | bryan.costa@noaa.gov |
Extents
Currentness Reference: | Ground Condition |
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Extent Group 1
Extent Group 1 / Geographic Area 1
W° Bound: | -70.783468 | |
---|---|---|
E° Bound: | -69.587834 | |
N° Bound: | 42.762758 | |
S° Bound: | 41.530988 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
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Start: | 1998-05-14 |
End: | 2003-09-29 |
Spatial Information
Spatial Representation
Representations Used
Vector: | Yes |
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Vector Representation 1
Complex Object Present?: | Yes |
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Complex Object Count: | 167098 |
Access Information
Security Class: | Unclassified |
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Data Access Procedure: |
Please contact the Stellwagen Banks NMS Research Coordinator for additional information on data access (david.wiley@noaa.gov); |
Data Access Constraints: |
None. |
Data Use Constraints: |
None. Acknowledgement of the National Oceanic and AtmosphericAdministration, Center for Coastal Monitoring and Assessment, Biogeography Program would be appreciated in products derived from these data. |
URLs
URL 1
URL: | http://coastalscience.noaa.gov/projects/detail?key=141 |
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URL Type: |
Online Resource
|
Activity Log
Activity Log 1
Activity Date/Time: | 2015-06-18 |
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Description: |
Date that the source FGDC record was last modified. |
Activity Log 2
Activity Date/Time: | 2017-04-05 |
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Description: |
Converted from FGDC Content Standards for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details. |
Activity Log 3
Activity Date/Time: | 2017-09-13 |
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Description: |
Partial upload of Spatial Info section only. |
Technical Environment
Description: |
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722 |
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Data Quality
Completeness Report: |
Unknown |
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Conceptual Consistency: |
Unknown |
Lineage
Process Steps
Process Step 1
Description: |
METHODS: The following methods were used to calculate the mean slope (weighted by area) at which each internal wave occured in the SAR imagery. The first step was to derive a slope surface (in degrees) from the bathymetry. We used the ArcGIS 9.1 Spatial Analyst extension slope function to create this surface. Before this slope surface could be converted to a vector polygon (because the Spatial Analyst Zonal Stats function does not accomodate overlapping polygons), it was multiplied by 100 million using the raster calculator and then converted to an integer raster. This factor of 100 million preserved the decimals in the floating point raster when it was converted to a integer raster. The slope integer raster was subsequently converted to a vector polygon, intersected with the internal wave packet polygon shapefile and the slope values were divided by 100 million to remove the scaling factor used previously.The next step was to calculate the mean slope (weighted by area) for each internal wave packet. To do so, we used the following equation:Area Weighted Mean (for slope) by internal wave packet =[((slope 1 x area 1) + (slope 2 x area 2) + (slope n-1 x area n-1)) /(area 1 + area 2 + area n-1)] Total area of the internal wave packet = area 1 + area 2 + area n-1 After the mean slope (weighted by area) was calculated for each internal wave packet, the mean slope (weighted by area) was calculated for ALL internal waves. The same formula was used as above: Area Weighted Mean (for slope)=[((mean slope 1 x internal wave packet area 1) + (mean slope 2 x internal wave packet area 2) + (mean slope n-1 x internal wave area n-1)) / (internal wave packet area 1 + internal wave packet area 2 + internal wave packet area n-1)] |
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Process Date/Time: | 2006-01-01 00:00:00 |
Child Items
Rubric scores updated every 15m
Type | Title | |
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Entity | InternalWave_Intersected_Slope |
Catalog Details
Catalog Item ID: | 39345 |
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GUID: | gov.noaa.nmfs.inport:39345 |
Metadata Record Created By: | Tyler Christensen |
Metadata Record Created: | 2017-04-05 12:52+0000 |
Metadata Record Last Modified By: | SysAdmin InPortAdmin |
Metadata Record Last Modified: | 2023-05-30 18:09+0000 |
Metadata Record Published: | 2017-09-13 |
Owner Org: | NCCOS |
Metadata Publication Status: | Published Externally |
Do Not Publish?: | N |
Metadata Last Review Date: | 2017-09-13 |
Metadata Review Frequency: | 1 Year |
Metadata Next Review Date: | 2018-09-13 |