ruggedimage.tif: GeoTIFF image of sea floor ruggedness analysis for the Stellwagen Bank National Marine Sanctuary region.

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Page C. Valentine
Originator: Tanya S. Unger
Originator: Jessica L. Baker
Publication_Date: 2005
Title:
ruggedimage.tif: GeoTIFF image of sea floor ruggedness analysis for the Stellwagen Bank National Marine Sanctuary region.
Edition: 1.0
Geospatial_Data_Presentation_Form: GeoTIFF image of an ESRI grid
Series_Information:
Series_Name: Scientific Investigations Map
Issue_Identification: 2840
Publication_Information:
Publication_Place: Woods Hole Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage:
<http://pubs.usgs.gov/sim/2005/2840/data/rugged/ruggedimage/ruggedimage.zip>
Larger_Work_Citation:
Citation_Information:
Originator: Page C. Valentine
Publication_Date: 2005
Title:
Sea floor image maps showing topography, sun-illuminated topography, backscatter intensity, ruggedness, slope, and the distribution of boulder ridges and bedrock outcrops in the Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts
Edition: 1.0
Series_Information:
Series_Name: Scientific Investigations Map
Issue_Identification: 2840
Publication_Information:
Publication_Place: Woods Hole Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Other_Citation_Details: scale 1:60,000, 6 maps, 12 sheets
Online_Linkage: <http://pubs.usgs.gov/sim/2005/2840/>
Description:
Abstract:
The Terrain Ruggedness Index (TRI) calculates the average difference in elevation between a small area (a center pixel of 13 x 13 m) and its surrounding area (eight neighboring pixels). The TRI was applied to the digital bathymetric grids of the seafloor of the Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts to create an analysis of sea floor ruggedness. This raster data set was then converted to a GeoTIFF image.
Purpose:
The Terrain Ruggedness Index provides an interpretation of the seabed features in the highly variable geomorphology of the Stellwagen Bank National Marine Sanctuary region. The seabed geometry is variable due to its glacial origin and is important to the region's wide range of habitats and high biodiversity.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2005
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -70.6
East_Bounding_Coordinate: -70.0333
North_Bounding_Coordinate: 42.8
South_Bounding_Coordinate: 42.0833
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: Geographic Information Systems
Theme_Keyword: GIS
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Woods Hole Science Center
Theme_Keyword: WHSC
Theme_Keyword: topographic data
Theme_Keyword: sea floor topography
Theme_Keyword: bathymetry
Theme_Keyword: ruggedness
Theme_Keyword: terrain index ruggedness
Theme_Keyword: GeoTIFF image
Theme_Keyword: TRI
Theme_Keyword: sea floor features
Place:
Place_Keyword_Thesaurus: General
Place_Keyword: Massachusetts
Place_Keyword: MA
Place_Keyword: Stellwagen Bank National Marine Sanctuary
Place_Keyword: SBNMS
Place_Keyword: Shallow EEZ
Place_Keyword: EEZ
Place_Keyword: Gulf of Maine
Place_Keyword: Atlantic Ocean
Place_Keyword: Boston
Access_Constraints: none
Use_Constraints:
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information. Not to be used for navigational purposes.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Page C. Valentine
Contact_Organization: U.S. Geological Survey
Contact_Position: Research Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: (508) 548-8700 x2239
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: pvalentine@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name:
<http://pubs.usgs.gov/sim/2005/2840/data/rugged/ruggedimage/ruggedimage-thumb.gif>
Browse_Graphic_File_Description:
Thumbnail image showing overview of the general seafloor ruggedness in the Stellwagen Bank National Marine Sanctuary region.
Browse_Graphic_File_Type: GIF
Browse_Graphic:
Browse_Graphic_File_Name:
<http://pubs.usgs.gov/sim/2005/2840/data/rugged/ruggedimage/ruggedimage-browse.gif>
Browse_Graphic_File_Description:
Image showing overview of the general seafloor ruggedness in the Stellwagen Bank National Marine Sanctuary region.
Browse_Graphic_File_Type: GIF
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535
Data_Quality_Information:
Attribute_Accuracy:
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Vertical_Positional_Accuracy:
Lineage:
Process_Step:
Process_Description:
The Terrain Ruggedness Index is based on an elevation index described by Riley and others (1999) where the sum change in elevation between a grid cell and its eight neighboring grid cells is calculated by squaring the eight differences in elevation, summing the squared differences, and taking the square root of the sum. Here, the index has been modified to calculate the average of the absolute values of the eight differences in elevation. The TRI was applied to the bathymetric grids by running a macro in ArcMap's Visual Basic editing environment. Artifacts of data collection were removed by hand editing and applying a mean filter (the Neighborhood Statistics function in Spatial Analyst was used to calculate a mean TRI for a 3x3 pixel template of TRI values centered over each pixel in the image).
Process_Step:
Process_Description: ESRI Grid converted to GeoTIFF
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 6201
Column_Count: 3631
Vertical_Count: 1
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Mercator
Mercator:
Standard_Parallel: 41.65
Longitude_of_Central_Meridian: -70.3167
False_Easting: 0
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 13.000000
Ordinate_Resolution: 13.000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Entity_and_Attribute_Information:
Overview_Description:
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Page C. Valentine
Contact_Organization: U.S. Geological Survey
Contact_Position: Research Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: (508) 548-8700 x2239
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: pvalentine@usgs.gov
Resource_Description: Downloadable Data
Distribution_Liability:
Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: TIFF
Format_Specification: GeoTIFF
Format_Information_Content:
A zip archive containing the GeoTIFF image, associated world file, and metadata.
File_Decompression_Technique: zip
Transfer_Size: 64.419
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
<http://pubs.usgs.gov/sim/2005/2840/data/rugged/ruggedimage/ruggedimage.zip>
Offline_Option:
Offline_Media: DVD-ROM
Recording_Capacity:
Recording_Density: 4.75
Recording_Density_Units: Gbytes
Recording_Format: UDF
Fees: None
Technical_Prerequisites:
This image is available as a GEOTIFF image with an accompanying world file. To utilize this data, the user must have an image viewer, image processing or GIS software package capable of importing a GeoTIFF image.
Metadata_Reference_Information:
Metadata_Date: 20050926
Metadata_Review_Date: 20050822
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Page C. Valentine
Contact_Position: Research Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: (508) 548-8700 x2239
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: pvalentine@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Generated by mp version 2.8.6 on Mon Sep 26 18:06:25 2005