Benthic Habitats of American Samoa Derived from Sonar and IKONOS Imagery, 2001-2012

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator:
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Sciences (NCCOS), Center for Coastal Monitoring and Assessment (CCMA)
Originator: Analytical Laboratories of Hawaii
Publication_Date: 2012
Title:
Benthic Habitats of American Samoa Derived from Sonar and IKONOS Imagery, 2001-2012
Edition: version 2.1
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Silver Spring, Maryland
Publisher:
NOAA's Ocean Service, National Centers for Coastal Ocean Science (NCCOS)
Larger_Work_Citation:
Citation_Information:
Originator:
Department of Commerce (DOC), 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
Publication_Date: 2012
Title:
Shoreline to Shelf Edge Benthic Habitat Map of Tutuila, American Samoa Prepared by Visual Interpretation from Remote Sensing Imagery
Edition: version 2.1
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Silver Spring, MD
Publisher:
NOAA's Ocean Service, National Centers for Coastal Ocean Science (NCCOS)
Description:
Abstract:
This project is a cooperative effort between the National Ocean Service, National Centers for Coastal Ocean Science, Center for Coastal Monitoring and Assessment, Biogeography Branch, the Pacific Islands Benthic Mapping Center, the National Marine Fisheries Service, Pacific Islands Fishery Science Center, Coral Reef Ecosystem Division, University of Hawaii, BAE Spectral Solutions, and Analytical Laboratories of Hawaii, LLC. The goal of the work was to map the coral reef habitats from shoreline to shelf edge of Tutuila, American Samoa by visual interpretation and manual delineation of sonar and IKONOS satellite imagery. A three part habitat classification system was used. Benthic features were mapped as polygons and labeled with geomorphologic structure, reef zone, and percent hard bottom attributes.
Purpose:
The National Ocean Service is digitally mapping biotic resources to support long-term monitoring programs and detect and predict change in U.S. coral reefs, and their associated habitats and biological communities.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2002
Ending_Date: 2010
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -170.92905
East_Bounding_Coordinate: -170.48096
North_Bounding_Coordinate: -14.19588
South_Bounding_Coordinate: -14.38429
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: coral reef
Theme_Keyword: habitat
Theme_Keyword: reef
Theme_Keyword: submerged aquatic vegetation
Theme_Keyword: unconsolidated sediments
Theme_Keyword: zone
Theme_Keyword: structure
Theme:
Theme_Keyword_Thesaurus: NOS Topic Keyword
Theme_Keyword: Remotely Sensed Imagery/Photos
Theme:
Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus
Theme_Keyword: Geographic Information > Habitats
Theme:
Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
Theme_Keyword:
EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Habitats
Theme_Keyword: EARTH SCIENCE > Biosphere > Aquatic Habitat > Benthic Habitat
Theme_Keyword:
EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping > Habitat Mapping
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: imageryBaseMapsEarthCover
Theme_Keyword: 010
Theme:
Theme_Keyword_Thesaurus: CRCP Project
Theme_Keyword:
AS240 Creating comprehensive shore to shelf edge reef ecosystem maps of Tutuila, American Samoa
Theme_Keyword: 20720
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: United States
Place_Keyword: American Samoa
Place_Keyword: Tutuila
Place:
Place_Keyword_Thesaurus: CoRIS Place Thesaurus
Place_Keyword:
OCEAN BASIN > Pacific Ocean > American Samoa > Tutuila Island (14S170W0016)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Tutuila Island (14S170W0016)
Place:
Place_Keyword_Thesaurus: CoRIS Region
Place_Keyword: AmSam
Access_Constraints: None
Use_Constraints: Not for navigation
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
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
Contact_Position: Biogeography Branch, Marine Biologist
Contact_Address:
Address_Type: mailing and physical address
Address: 1305 East West Highway
City: Silver Spring
State_or_Province: MD
Postal_Code: 20910
Contact_Voice_Telephone: 301-713-3028
Contact_Facsimile_Telephone: 301-713-4384
Contact_Electronic_Mail_Address: matt.kendall@noaa.gov
Hours_of_Service: 0800 - 1700, Monday to Friday, EST
Data_Set_Credit:
Matt Kendall, NOAA and Miles Anderson, Analytical Laboratories of Hawaii
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 9.0.0.535

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
To assess the thematic accuracy of the sonar portion of the maps, an independent field data set originally collected for a fishery assessment, was made available by scientists from the Department of Marine and Wildlife Resources in American Samoa (R. Tulafono, D. Ochavillo, M. Sabater, E. Simonsen, E. Schuster, T. Letalie). Each site consisted of GPS coordinates and several minutes of video data of the seafloor. Useable data were acquired for 77 points and compared to the attributes of the map polygons at each site to check thematic accuracy. A statistical analysis that generated a Tau statistic was preformed. The Tau statistic for the major classes exceeded 0.94 and for detailed classes exceeded 0.93. Overall thematic accuracy was established as 97.4% and 93.5% for the major and detailed structure classes respectively. A separate accuracy assessment was conducted for the shallow water-IKONOS based portion of the map that yielded similar results.
Logical_Consistency_Report:
All mapping was conducted from sonar and orthorectified IKONOS satellite imagery. IKONOS satellite imagery was corrected for atmospheric and water column effects, color balanced, pan sharpened and deglinted. During the digitizing process, image stretches and manipulating image contrast, brightness and color balance were performed in the ArcView Image Analysis Extension to enhance features in the processed imagery. Sonar imagery and derived datasets were downloaded from <http://www.soest.hawaii.edu/pibhmc/>.

Sonar based maps were edge matched to the IKONOS based maps and GIS topologic quality was established by executing ArcView extension routines that check for: overlapping polygons, multipart polygons, sliver polygons and void polygons. Additionally checks for adjacent polygons with the same habitat attributes were completed. All errors were identified and corrected. This file is believed to be logically consistent.

Completeness_Report:
Delineation of all habitat boundaries was conducted with the image scale at 1:6,000 for IKONOS and 1:10,000 for sonar. The minimum mapping unit (MMU) for identifying habitats or features was 1 acre.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Horizontal accuracy of the benthic maps is inherited from the source imagery. For example, RMS from digitized output based on IKONOS was determined using the ESRI RMEer2 extension and shown to be <1m when conducted at 1:6000 scale.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: M.S. Coyne
Publication_Date: 2003
Title: Classification Scheme for Benthic Habitats of the Pacific
Geospatial_Data_Presentation_Form: document
Publication_Information:
Publication_Place: Silver Spring, MD
Publisher:
NOAA's Ocean Service, National Centers for Coastal Ocean Science (NCCOS)
Online_Linkage:
<http://ccma.nos.noaa.gov/ecosystems/coralreef/us_pac_terr/html/manual.pdf>
Type_of_Source_Media: Report
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2003
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Classification Scheme for Benthic Habitats of the Pacific
Source_Contribution:
This document identified the zone, structure and biological cover types attributed in the data set
Source_Information:
Source_Citation:
Citation_Information:
Originator: Ken Buja
Publication_Date: 2003
Title: Coral Reef Digitizing Extension
Publication_Information:
Publication_Place: Silver Spring, MD
Publisher:
NOAA's Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS)
Online_Linkage: <http://ccma.nos.noaa.gov/products/biogeography/digitizer/>
Type_of_Source_Media: computer program
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2003
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Habitat Digitizer
Source_Contribution:
This ArcView extension was used to digitize and attribute benthic zones, structure and percent hard bottom of this map.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Space Imaging Inc.
Publication_Date: 2003
Title: IKONOS Satellite Imagery
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publication_Place: Thornton, CO
Publisher: Space Imaging Inc.
Other_Citation_Details:
This imagery was obtained at a 4 m pixel resolution, corrected for water column and atmospheric effects, deglinted and Pan sharpened.
Type_of_Source_Media: CD-ROM
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2001
Ending_Date: 2003
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: IKONOS imagery
Source_Contribution:
Used to identify and digitize benthic habitats for American Samoa.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Pacific Islands Benthic Habitat Mapping Center
Publication_Date: 2006
Title: Sonar imagery and derived products for Tutuila
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publication_Place: Honolulu, HI
Publisher: PIBHMC
Other_Citation_Details:
Sonar bathymetry was obtained at 5 m pixel resolution and backscatter was collected 1 m resolution.
Online_Linkage: <http://www.soest.hawaii.edu/pibhmc/>
Type_of_Source_Media: online arcGIS files
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2002
Ending_Date: 2006
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Sonar imagery
Source_Contribution:
Used to identify and digitize benthic habitats for American Samoa.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Department of Marine and Wildlife Resources, American Samoa
Publication_Date: 2010
Title: Drop Camera Videos for Fisheries Assessment
Geospatial_Data_Presentation_Form: video
Publication_Information:
Publication_Place: Pago Pago, AS
Publisher: Department of Marine and Wildlife Resources, American Samoa
Other_Citation_Details:
Video of sea floor features collected with GPS coordinate stamp.
Type_of_Source_Media: video files
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2009
Ending_Date: 2010
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Drop camera video
Source_Contribution: Used to determine thematic accuracy of benthic habitat maps.
Process_Step:
Process_Description:
Benthic habitat maps were digitized by delineating habitat boundaries from georeferenced sonar and orthorectified IKONOS satellite imagery loaded into ArcGIS software with the NOAA Habitat Digitizing extension activated. Digitizing was conducted using on computer screen methods with the minimum mapping unit (MMU) set to 1 acre and the image scale at 1:6,000 for IKONOS and 1:10,000 for sonar.

A first draft map was completed and features in the imagery where uncertainties existed, due to confusing or difficult to interpret signatures, were identified for ground validation. An ArcGIS point theme was generated with points positioned on the features of uncertain habitat type or along transects though gradients between habitat types. The GIS points were converted to GPS waypoints and were navigated to in the field using a Trimble GeoExplorer 3 GPS data logger.

A benthic habitat characterization was conducted at each site by drop camera, free diving, or where water depth and clarity permitted, by observation from the surface. GPS data were collected at each location and site ID, depth, habitat type, zone and the method used to make the assessment were recorded. A second draft of the map was generated incorporating these ground validation data.

The sonar and satellite based maps were edge matched primarily by clipping out any areas of overlap and retaining the sonar derived map. Polygon edges were merged where attributes matched and seams corrected for any inconsistencies.

Process_Date: 2011
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Matt Kendall
Contact_Organization:
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
Contact_Address:
Address_Type: mailing address
Address: 1305 East-West Highway
City: Silver Spring
State_or_Province: MD
Postal_Code: 20910
Contact_Voice_Telephone: 301-713-3028
Contact_Facsimile_Telephone: 301-713-4388
Process_Step:
Process_Description: Metadata imported.
Process_Date: 2011

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 2089

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: -2
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -171.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 10000000.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.001024
Ordinate_Resolution: 0.001024
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: D_North_American_1983_HARN
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: tutuila_shore_to_shelfedge_final
Entity_Type_Definition: Shapefile attribute table
Entity_Type_Definition_Source: None
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: ESRI
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: OBJECT_ID
Attribute_Definition: Incremental value generated for QA/QC adjacency test
Attribute_Definition_Source: ArcView script
Attribute_Domain_Values:
Unrepresentable_Domain: Incremental numeric field
Attribute:
Attribute_Label: ZONE_
Attribute_Definition: Geomorphologic zone
Attribute_Definition_Source: Habitat classification scheme
Attribute_Domain_Values:
Unrepresentable_Domain: Assigned during digitizing character field
Attribute:
Attribute_Label: M_STRUCT
Attribute_Definition: Major reef structure
Attribute_Definition_Source: Habitat digitizing extension
Attribute_Domain_Values:
Unrepresentable_Domain: Assigned during digitizing character field
Attribute:
Attribute_Label: D_STRUCT
Attribute_Definition: Detailed structure
Attribute_Definition_Source: Habitat digitizing extension
Attribute_Domain_Values:
Unrepresentable_Domain: Assigned during digitizing character field
Attribute:
Attribute_Label: P_HARD
Attribute_Definition: Percent hard bottom in the polygon
Attribute_Definition_Source: Habitat classification scheme
Attribute_Domain_Values:
Unrepresentable_Domain: Assigned during digitizing character field
Attribute:
Attribute_Label: Shape_area
Attribute_Definition: Area of polygon
Attribute_Definition_Source: ArcGIS script
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 10.03
Range_Domain_Maximum: 200389160.20
Attribute_Units_of_Measure: NA
Attribute:
Attribute_Label: Shape_leng
Attribute_Definition: Length of polygon
Attribute_Definition_Source: ArcGIS script
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 13.84
Range_Domain_Maximum: 925134.59
Attribute_Units_of_Measure: NA

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
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
Contact_Position: Biogeography Branch, Marine Biologist
Contact_Address:
Address_Type: mailing and physical address
Address: 1305 East West Highway
City: Silver Spring
State_or_Province: MD
Postal_Code: 20910
Contact_Voice_Telephone: 301-713-3028
Contact_Facsimile_Telephone: 301-713-4384
Contact_Electronic_Mail_Address: matt.kendall@noaa.gov
Hours_of_Service: 0800 - 1700, Monday to Friday, EST
Resource_Description: Downloadable Data
Distribution_Liability:
The National Oceanic and Atmospheric Administration (NOAA) National Centers for Coastal Ocean Science (NCCOS) produced this data CD-ROM. NCCOS Biogeography Program does not guarantee the accuracy of the geographic features or attributes. Please see the metadata records for each data set for complete information on the source, limitations, and proper use.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Shapefile
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
<http://data.nodc.noaa.gov/coris/data/NOAA/nos/Tutuila_shore_to_shelf_edge/Tutuila_shore_to_shelf_edge.zip>
Fees: None
Custom_Order_Process:
Contact NOAA for distribution options (see Distributor). All maps of American Samoa prepared during this tenure are incorporated into this metadata summary.

Metadata_Reference_Information:
Metadata_Date: 20140916
Metadata_Review_Date: 20120518
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
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
Contact_Address:
Address_Type: mailing and physical address
Address: 1305 East West Highway
City: Silver Spring
State_or_Province: MD
Postal_Code: 20910
Contact_Voice_Telephone: 301-713-3028
Contact_Facsimile_Telephone: 301-713-4384
Contact_Electronic_Mail_Address: matt.kendall@noaa.gov
Hours_of_Service: 0800 - 1700, Monday to Friday, EST
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>


CoRIS:
CoRIS_ID: 20120518065526
CoRIS_Children: None
CoRIS_Beginning_Date: 20020101
CoRIS_Ending_Date: 20101231
CoRIS_Metadata_Link:
<http://www.coris.noaa.gov/metadata/records/html/tutuila_shore_to_shelf_edge_shp.html>
CoRIS_Tracking_ID: 6481

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