39344
Massachusetts Bay - Internal Wave Packets Digitized from SAR Imagery and Intersected with Bathymetry
iw_intersect_bathymetry
Data Set
Published / External
37201
SBNMS_Assess_Internal_Waves
Project
Completed
2006
This feature class contains internal wave packets digitized from SAR imagery and intersected with bathymetry for Massachusetts Bay. The internal wave packets were digitized at a 1:350,000 scale and the bathymetry had a 360 x 360 meter resolution.
Created to support the biogeographic assessment of Stellwagen Bank National Marine Sanctuary.
635
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
Theme
ISO 19115 Topic Category
imageryBaseMapsEarthCover
Theme
ISO 19115 Topic Category
oceans
Theme
NOS Data Explorer Topic Category
Environmental Monitoring
Theme
Bathymetry
Theme
Internal Waves
Theme
SAR
Theme
Synthetic Aperture Radar
Temporal
1998-2003
Spatial
Massachusetts Bay
Spatial
Stellwagen Bank National Marine Sanctuary
National Centers for Coastal Ocean Science
Silver Spring
MD
Data Set
None Planned
vector digital data
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.
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/
41304
InternalWave_Intersected_Bathymetry
InternalWave_Intersected_Bathymetry
Published / External
Completed
Internal wave packets intersected with a bathymetrically derived slope surface | Description Source: NOAA
Converted from FGDC using 'fgdc_to_inport_xml_entity.pl' script.
1
OBJECTID
Unknown
No
No
Active
Internal feature number. | Description Source: ESRI
Sequential unique whole numbers that are automatically generated.
2
Shape
Unknown
No
No
Active
Feature geometry. | Description Source: ESRI
Coordinates defining the features.
3
Image_Tile
VARCHAR
No
No
Active
SAR image from which internal wave packet was digitized | Description Source: NOAA
SAR Image: SAR image from which internal wave packet was digitized |
4
Year
VARCHAR
No
No
Active
Year SAR image taken and internal wave packet occured | Description Source: NOAA
Year: Year SAR image taken and internal wave packet occured |
5
Julian_Day
VARCHAR
No
No
Active
Julian day SAR image taken and internal wave packet occured | Description Source: NOAA
Julian Day: Julian day SAR image taken and internal wave packet occured |
6
Month
VARCHAR
No
No
Active
Month SAR image taken and internal wave packet occured | Description Source: NOAA
Month: Month SAR image taken and internal wave packet occured |
7
Day
VARCHAR
No
No
Active
Day SAR image taken and internal wave packet occured | Description Source: NOAA
Day: Day SAR image taken and internal wave packet occured |
8
Hour
VARCHAR
No
No
Active
Hour SAR image taken and internal wave packet occured | Description Source: NOAA
Hour: Hour SAR image taken and internal wave packet occured |
9
Minute
VARCHAR
No
No
Active
Minute SAR image taken and internal wave packet occured | Description Source: NOAA
Minute: Minute SAR image taken and internal wave packet occured |
10
Second
VARCHAR
No
No
Active
Second SAR image taken and internal wave packet occured | Description Source: NOAA
Second: Second SAR image taken and internal wave packet occured |
11
Zone
VARCHAR
No
No
Active
Time Zone | Description Source: NOAA
Zone: Time zone in which hours and minutes were recorded |
12
Direction
VARCHAR
No
No
Active
Propagation direction of internal wave packet | Description Source: NOAA
Direction: Propagation direction of internal wave packet |
13
Moon_Phase
VARCHAR
No
No
Active
Moon phase when internal wave packet occured | Description Source: NOAA
Moon Phase: Moon phase when internal wave packet occured |
14
Tide
VARCHAR
No
No
Active
Tide phase when internal wave packet occured | Description Source: NOAA
Tide: Tide phase when internal wave packet occured |
15
Comment
Unknown
No
No
Active
Additional information about internal wave packets | Description Source: NOAA
Additional information about internal wave packets
16
IW_ID
Unknown
No
No
Active
Unique ID # for each internal wave packet | Description Source: NOAA
Unique ID # for each internal wave packet
17
Depth_Cell_ID
Unknown
No
No
Active
Unique ID # for each depth raster grid cell | Description Source: NOAA
Unique ID # for each depth raster grid cell
18
Depth_m
NUMBER
No
No
Active
Depth (in meters) | Description Source: NOAA
meters
-282 - -10
19
Depth_Cell_Area
NUMBER
No
No
Active
Area (in square meters) of each depth raster grid cell that underneath internal wave packet | Description Source: NOAA
square meters
0.000279 - 5540980.163
20
IW_Area
NUMBER
No
No
Active
Area (in square meters) of internal wave packets | Description Source: NOAA
square meters
784661.291 - 373326606.810
21
Wght_Mean_Depth
Unknown
No
No
Active
Weight given to each depth raster grid cell based on area | Description Source: NOAA
Weight given to each depth raster grid cell based on area
Data Steward
2006
Position
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Distributor
2006
Position
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Metadata Contact
2006
Position
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Point of Contact
2006
Position
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Principal Investigator
2006
Person
Costa, Bryan
bryan.costa@noaa.gov
Ground Condition
-70.783468
-69.587834
42.762758
41.530988
Range
1998-05-14
2003-09-29
Yes
Yes
101986
Unclassified
Please contact the Stellwagen Banks NMS Research Coordinator for additional information on data access (david.wiley@noaa.gov);
None.
None. Acknowledgement of the National Oceanic and Atmospheric Administration, Centers for Coastal Ocean Science, Center for Coastal Monitoring and Assessment, Biogeography Program would be appreciated in products derived from these data.
http://coastalscience.noaa.gov/projects/detail?key=141
Online Resource
2015-06-18
Date that the source FGDC record was last modified.
2017-04-05
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.
2017-09-13
Partial upload of Spatial Info section only.
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722
Unknown
Unknown
1
METHODS:The following methods were used to calculate the mean depth (weighted by area) at which each internal wave occured in the SAR imagery. As ArcGIS 9.1 Spatial Analyst Zonal Stats function does not accomodate overlapping polygons, we first converted the bathymetric raster to a vector polygon shapefile. This bathymetric vector polygon was then intersected with the internal wave packet polygon shapefile.The next step was to calculate the mean depth (weighted by area) for each internal wave packet. To do so, we used the following equation:Area Weighted Mean (for depth) by internal wave packet =[((depth 1 x area 1) + (depth 2 x area 2) + (depth 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-1After the mean depth (weighted by area) was calculated for each internal wave packet, the mean depth (weighted by area) was calculated for ALL internal waves. The same formula was used as above:Area Weighted Mean (for depth) =[((mean depth 1 x internal wave packet area 1) + (mean depth 2 x internal wave packet area 2) + (mean depth n-1 x internal wave area n-1)) / (internal wave packet area 1 + internal wave packet area 2 + internal wave packet area n-1)]
2006-01-01T00:00:00
41304
Entity
InternalWave_Intersected_Bathymetry
gov.noaa.nmfs.inport:39344
Tyler Christensen
2017-04-05T12:52:00
SysAdmin InPortAdmin
2023-05-30T18:09:18
2017-09-13
National Centers for Coastal Ocean Science
NCCOS
1002
Public
No
2017-09-13
1 Year
2018-09-13