Rugosity grid derived from gridded bathymetry of Howland Island, Pacific Remote Island Areas, Central Pacific
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Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator:
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Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
- Publication_Date: 20100701
- Title:
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Rugosity grid derived from gridded bathymetry of Howland Island, Pacific Remote Island Areas, Central Pacific
- Geospatial_Data_Presentation_Form: raster digital data
- Online_Linkage: http://www.soest.hawaii.edu/pibhmc
- Online_Linkage:
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http://www.soest.hawaii.edu/pibhmc/cms/data-by-location/pacific-remote-island-area/howland-island/howland-island-geomorphology/
- Description:
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- Abstract:
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Rugosity is derived from gridded (40 m cell size) multibeam
bathymetry, collected aboard R/V AHI and NOAA ship Hi'ialakai.
Cell values reflect the (surface area) / (planimetric area)
ratio for the area contained within that cell's boundaries. They
provide indices of topographic roughness & convolutedness. This data
set is for Howland Island, Pacific Remote Island Areas, Central Pacific.
- Purpose:
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The data were derived in support of NOAA Coral Reef Conservation
Program goals. Goal 1 is to map all U.S. Coral Reef Ecosystems.
This data set specifically addresses Objective 1 and 4: to develop
high-resolution benthic maps and to characterize priority deep
water reefs and associated habitats. This derivative of bathymetry
provides a GIS layer that may be used for benthic and essential fish
habitat characterization, and for the study of geologic features.
By combining the dataset with bathymetry, backscatter, other
derivatives, and in situ data, they collectively compose benthic
habitat maps which are designed to be used to understand and predict
moderate depth (~20m - 150m) benthic habitats for different
organisms that inhabit coral reef ecosystems.
- Supplemental_Information:
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Gridded multibeam data were collected aboard the R/V AHI
(Acoustic Habitat Investigator), a 25' survey launch owned and
operated by the NOAA Pacific Islands Fisheries Science Center in
Honolulu, HI and the 218' NOAA Ship Hi'ialakai. The process for deriving the
gridded (40 m cell size) multibeam data is described in Howland_40m.asc.txt.
The resulting grid (Howland_40m.grd) was clipped using the ESRI ArcToolbox tool
Extract by Mask' leaving only the multibeam data collected on the slopes
and excluding the discontinuous data forming a box around the island slopes.
This clipped data was used in the rugosity calculation.
Rugosity was calculated using the Rugosity Builder tool within the Benthic
Terrain Modeler (http://www.csc.noaa.gov/products/btm/).
References:
Jenness, J. 2003. Grid surface areas: Surface area and ratios from
elevation grids [Electronic manual]. Jenness Enterprises:
ArcView Extensions.
http://www.jennessent.com/arcview/arcview_extensions.htm
Lundblad et al., 2006, A benthic terrain classification scheme for
American Samoa, Marine Geodesy, 29(2):89 - 111.
http://www.csc.noaa.gov/products/btm/
- Time_Period_of_Content:
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- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date: 20060128
- Ending_Date: 20060129
- Currentness_Reference: ground condition
- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: As needed
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -176.632545
- East_Bounding_Coordinate: -176.605533
- North_Bounding_Coordinate: 00.833556
- South_Bounding_Coordinate: 00.782664
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: NCEI Geoportal Filter
- Theme_Keyword: CoRIS_Metadata
- Theme:
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- Theme_Keyword_Thesaurus: CRCP Project
- Theme_Keyword:
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Benthic Habitat Mapping and Characterization - American Samoa and the U.S. Pacific Remote Island Area
- Theme_Keyword: 1084
- Theme:
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- Theme_Keyword_Thesaurus: ISO 19115 Topic Category
- Theme_Keyword: imageryBaseMapsEarthCover
- Theme_Keyword: 010
- Theme:
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- Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
- Theme_Keyword:
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EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat > Description
- Theme_Keyword:
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EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry
- Theme_Keyword:
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EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Rugosity
- Theme_Keyword:
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EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Rugosity
- Theme:
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- Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus
- Theme_Keyword: Geographic Information > Habitats
- Place:
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- Place_Keyword_Thesaurus: CoRIS Place Thesaurus
- Place_Keyword:
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COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Howland Island (00S176W0001)
- Place_Keyword:
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OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Howland Island > Howland Island (00S176W0001)
- Place:
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- Place_Keyword_Thesaurus: CoRIS Region
- Place_Keyword: PRIA
- Access_Constraints: None
- Use_Constraints:
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These data are not to be used for navigation purposes.
Please acknowledge the NOAA Pacific Islands Fisheries Science Center
(PIFSC) Coral Reef Ecosystem Division (CRED) and the Pacific Islands
Benthic Habitat Mapping Center, and the Joint Institute for Marine
and Atmospheric Research (JIMAR) and School of Ocean and Earth
Science and Technology (SOEST), University of Hawaii as the sources
of this information.
- Point_of_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization:
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Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: NOAA IRC
- Address: NMFS/PIFSC/CRED
- Address: 1845 WASP Blvd., Building 176
- City: Honolulu
- State_or_Province: HI
- Postal_Code: 96818
- Contact_Voice_Telephone: 808 725-5360
- Contact_Facsimile_Telephone: 808 725-5429
- Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
- Contact_Instructions: e-mail preferred
- Browse_Graphic:
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- Browse_Graphic_File_Name:
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http://www.soest.hawaii.edu/pibhmc/PRIAs_images/Howland_40m_rugosity_445.jpg
- Browse_Graphic_File_Description: Gridded Bathymetry Derivative
- Browse_Graphic_File_Type: JPEG
- Data_Set_Credit:
-
NOAA PIFSC CRED and the Pacific Islands Benthic Habitat Mapping Center, JIMAR and SOEST
- Security_Information:
-
- Security_Classification_System: Not applicable
- Security_Classification: Unclassified
- Security_Handling_Description: Not applicable
- Data_Quality_Information:
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- Attribute_Accuracy:
-
- Attribute_Accuracy_Report:
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Data are collected for resource
management and research purposes and are tested for
internal consistency; however, no effort is made to compare
these data to external references or to other published data.
- Logical_Consistency_Report:
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These data are believed to be logically
consistent though no tests were performed
- Completeness_Report: Complete
- Positional_Accuracy:
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- Horizontal_Positional_Accuracy:
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- Horizontal_Positional_Accuracy_Report:
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Horizontal positioning system: GPS C/A
Horizontal position accuracy: 25 meters
- Vertical_Positional_Accuracy:
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- Vertical_Positional_Accuracy_Report:
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Range resolution of sonar: varies with depth
Raw sounding resolution: varies with depth
Vertical accuracy of gridded product ~ 1% of water depth
- Lineage:
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- Process_Step:
-
- Process_Description:
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Rugosity was derived from the gridded multibeam bathymetry
(baker_40m) using the Benthic Terrain Modeler (BTM). The BTM may
be downloaded from http://www.csc.noaa.gov/products/btm/. The BTM,
written for ArcGIS 8.x or 9.x, includes a component for deriving
rugosity using methods by Jeff Jenness that he wrote for ArcView 3.x.
- Process_Date: 20100701
- Spatial_Data_Organization_Information:
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- Direct_Spatial_Reference_Method: Raster
- Raster_Object_Information:
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- Raster_Object_Type: Grid Cell
- Row_Count: 485
- Column_Count: 348
- Vertical_Count: 1
- Spatial_Reference_Information:
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- Horizontal_Coordinate_System_Definition:
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- Planar:
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- Grid_Coordinate_System:
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- Grid_Coordinate_System_Name: Universal Transverse Mercator
- Universal_Transverse_Mercator:
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- UTM_Zone_Number: 1
- Transverse_Mercator:
-
- Scale_Factor_at_Central_Meridian: 0.9996
- Longitude_of_Central_Meridian: -177
- Latitude_of_Projection_Origin: 0
- False_Easting: 500000
- False_Northing: 10000000
- Planar_Coordinate_Information:
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- Planar_Coordinate_Encoding_Method: Row and Column
- Coordinate_Representation:
-
- Abscissa_Resolution: 40
- Ordinate_Resolution: 40
- Planar_Distance_Units: meters
- Geodetic_Model:
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- Horizontal_Datum_Name: D_WGS_1984
- Ellipsoid_Name: WGS_1984
- Semi-major_Axis: 6378137.000000
- Denominator_of_Flattening_Ratio: 298.257224
- Entity_and_Attribute_Information:
-
- Overview_Description:
-
- Entity_and_Attribute_Overview: none
- Entity_and_Attribute_Detail_Citation: none
- Distribution_Information:
-
- Distributor:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization:
-
Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: NOAA IRC
- Address: NMFS/PIFSC/CRED
- Address: 1845 WASP Blvd., Building 176
- City: Honolulu
- State_or_Province: HI
- Postal_Code: 96818
- Contact_Voice_Telephone: 808 725-5360
- Contact_Facsimile_Telephone: 808 725-5429
- Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
- Contact_Instructions: e-mail preferred
- Resource_Description: Downloadable Data
- Distribution_Liability:
-
These data are not to be used for navigational purposes.
NOAA makes no warranty regarding these data, expressed or implied,
nor does the fact of distribution constitute such a warranty.
NOAA cannot assume liability for any 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.
- Standard_Order_Process:
-
- Digital_Form:
-
- Digital_Transfer_Information:
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- Format_Name: Arc ASCII
- Format_Information_Content:
-
Arc ASCII can be converted to Arc
Raster using ArcToolbox Conversion Tools (ASCIItoRaster).
- Digital_Transfer_Option:
-
- Online_Option:
-
- Computer_Contact_Information:
-
- Network_Address:
-
- Network_Resource_Name:
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ftp://ftp.soest.hawaii.edu/pibhmc/website/data/pria/benthichabitatlayers/Howland_40m_rugosity.rar
- Fees: None
- Metadata_Reference_Information:
-
- Metadata_Date: 20190605
- Metadata_Review_Date: 20101207
- Metadata_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization:
-
Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: NOAA IRC
- Address: NMFS/PIFSC/CRED
- Address: 1845 WASP Blvd., Building 176
- City: Honolulu
- State_or_Province: HI
- Postal_Code: 96818
- Contact_Voice_Telephone: 808 725-5360
- Contact_Facsimile_Telephone: 808 725-5429
- Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
- Contact_Instructions: e-mail preferred
- Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
- Metadata_Time_Convention: Universal Time
- Metadata_Access_Constraints: None
- Metadata_Use_Constraints: None
- CoRIS:
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- CoRIS_ID: 20101207030603
- CoRIS_Children: None
- CoRIS_Beginning_Date: 20060128
- CoRIS_Ending_Date: 20060129
- CoRIS_Metadata_Link:
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https://www.coris.noaa.gov/metadata/records/html/howland_40m_rugosity.html
- CoRIS_Tracking_ID: 6073
Generated by mp version 2.9.48 on Tue Jun 6 10:59:55 2023