Benthic Habitats of Aguijan in the Southern Mariana Archipelago 2001-2003, Derived from IKONOS Imagery

Identification_Information:

Citation:

Citation_Information:

Originator: Miles Anderson, Analytical Laboratories of Hawaii
Publication_Date: 2004
Title:

Edition: version 1.1
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:

Publication_Place: Kailua, Hawaii
Publisher: Analytical Laboratories of Hawaii

Online_Linkage:

http://products.coastalscience.noaa.gov/collections/benthic/e99us_pac/

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: 2004
Title:

Benthic Habitats of the Mariana Archipelago Prepared by Visual Interpretation from IKONOS satellite imagery procured by NOAA

Edition: version 1.1
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, the University of Hawaii, BAE Systems Spectral Solutions and Analytical Laboratories of Hawaii, LLC. The goal of the work was to map the coral reef habitats of American Samoa, Guam and the Common Wealth of the Northern Mariana Islands by visual interpretation and manual delineation of IKONOS satellite imagery. A two tiered habitat classification system was tested and implemented in this work. It integrates geomorphologic reef structure and biological cover into a single scheme and subsets each into detail. It also includes thirteen zones. Benthic features were mapped that covered an area of 45.2 square kilometers of which 4.4 were unconsolidated sediment and 40.9 were coral reef and hard bottom. Of the coral reef and hard bottom class, 59.9% is colonized by greater than 10% coral cover.

Purpose:

The National Ocean Service is conducting a map production effort to digitally map biotic resources and coordinate a long-term monitoring program that can 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: 2001
Ending_Date: 2003

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: 145.512977
East_Bounding_Coordinate: 145.598930
North_Bounding_Coordinate: 14.894939
South_Bounding_Coordinate: 14.801922

Keywords:

Theme:

Theme_Keyword_Thesaurus: NCEI Geoportal Filter
Theme_Keyword: CoRIS_Metadata

Theme:

Theme_Keyword_Thesaurus: CRCP Project
Theme_Keyword:

Mapping the shallow-water coral reef ecosystems of American Samoa, Guam, and the Northern Marianas

Theme_Keyword: 1209

Theme:

Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus
Theme_Keyword: Geographic Information > Habitats

Theme:

Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
Theme_Keyword:

EARTH SCIENCE > Biosphere > Vegetation > Algae > Coralline Algae

Theme_Keyword:

EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Habitats

Theme_Keyword: EARTH SCIENCE > Biosphere > Aquatic Habitat > Coastal Habitat
Theme_Keyword: EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: coral reef
Theme_Keyword: coralline algae
Theme_Keyword: habitat
Theme_Keyword: reef
Theme_Keyword: submerged aquatic vegetation
Theme_Keyword: unconsolidated sediments
Theme_Keyword: zone
Theme_Keyword: structure
Theme_Keyword: cover

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: imageryBaseMapsEarthCover
Theme_Keyword: 010

Place:

Place_Keyword_Thesaurus: CoRIS Place Thesaurus
Place_Keyword:

OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Aguihan Island Reefs > Aguihan Island (Aguijan) (14N145E0006)

Place_Keyword:

COUNTRY/TERRITORY > Northern Mariana Islands > Aguihan > Aguihan Island (Aguijan) (14N145E0006)

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: United States
Place_Keyword: Aguijan

Place:

Place_Keyword_Thesaurus: CoRIS Region
Place_Keyword: CNMI

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 Team Leader, Mapping Manager
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: 301-713-4388
Contact_Electronic_Mail_Address: tim.battista@noaa.gov

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:

A statistically robust field data set was collected to assess the thematic accuracy of the map products. A random stratified sampling method was implemented to select field sites to conduct this test. Each site was navigated to using a Trimble Geo Explorer 3 GPS data logger, and positional data was acquired. A total of 1113 GPS waypoints were occupied and benthic characterizations conducted for the purpose of accuracy assessment. Areas that were obscured by cloud cover or where other environmental conditions such as glint of turbidity prevented visual interpretation of the benthic habitats were assigned an attribute of "unknown". Field observations that fell in polygons designated "unknown" were not included in the statistical analysis. During this survey, 5 of the 1113 field observations were excluded for this reason and 1108 observations were used in the accuracy assessment. A statistical analysis that generated a Tau statistic was preformed. The Tau statistic for the major classes exceeded 0.85 and for detailed classes exceeded 0.75. Overall thematic accuracy was established as 98.7% and 92.6% for the major structure and cover classes and 87.8% and 81% for the detailed classes respectively for the entire Mariana Archipelago.

Logical_Consistency_Report:

All mapping was conducted from orthorectified IKONOS satellite imagery provided by NOS prior to map production. 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. 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:

NOAA supplied georeferenced imagery to Analytical Laboratories of Hawaii through BAE Systems Spectral Solutions. Delineation of all habitat boundaries was conducted with the image scale at 1:6,000. This ensures that the level of detail produced by the photo interpreter is uniform throughout the project. Also, NOAA has shown from similar mapping efforts in the Caribbean and Florida Keys that little additional information is gained from having the image at a smaller scale and the labor intensity increased significantly. The minimum mapping unit (MMU) for identifying habitats or features was 1 acre. The software utilized in this project was designed to alert the photo interpreter each time a polygon was drawn smaller than the MMU. When this occurred the photo interpreter has the choice whether to include the polygon in the data set. Only in areas where local coral reef managers expressed interest in specific map classes or in Marine Protected Areas were polygons of smaller then the MMU allowed.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

RMS from digitized output was determined using the ESRI RMEer2 extension and shown to be less than 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: https://cdn.coastalscience.noaa.gov/datasets/e99/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: https://coastalscience.noaa.gov/projects/detail?key=203

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 biological cover 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 the Mariana Archipelago.

Process_Step:

Process_Description:

IKONOS images used in this habitat product were observed in 2001 through 2003. Benthic habitat maps were digitized by delineating habitat boundaries from georeferenced orthorectified IKONOS satellite imagery loaded into ArcView 3.3 GIS software with the Image Analysis and NOAA Coral Reef Habitat Digitizing extensions both activated. Digitizing was conducted using heads-up on computer screen methods with the minimum mapping unit (MMU) set to 1 acre and the image scale at 1:6,000. All IKONOS imagery was processed by NOS prior to map production. The imagery was corrected for atmospheric and water column effects, pan sharpened and deglinted. During the digitizing process, images were stretched and contrast, brightness and color balance were modified using the Arc View Image Analysis Extension to enhance features in the processed imagery. 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 future ground validation effort. An ArcView GIS 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 using Trimble Pathfinder Software 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 snorkeling, 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.

Process_Date: 2004
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Dr. Miles Anderson
Contact_Organization: Analytical Laboratories of Hawaii, LLC

Contact_Position: Researcher
Contact_Address:

Address_Type: mailing and physical
Address: 1320 Aalapapa Dr.
City: Kailua
State_or_Province: HI
Postal_Code: 96734
Country: USA

Contact_Voice_Telephone: (808) 262-2417
Contact_Facsimile_Telephone: (808) 262-7027
Contact_Electronic_Mail_Address: miles@interpac.net

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: 1030

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:

UTM_Zone_Number: 55
Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: 147.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:

Abscissa_Resolution: 0.002048
Ordinate_Resolution: 0.002048

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983
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: scnmi_benthic_habitats_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: ID
Attribute_Definition:

Value copied from UNIQUID field and used to run adjacency script for QA/QC

Attribute_Definition_Source: NOAA mapping QA/QC standard
Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name: Habitat description
Codeset_Source: Habitat classification scheme for the Pacific

Attribute:

Attribute_Label: UNIQUEID
Attribute_Definition:

4 digit numerical value representing a unique habitat combination of structure and cover attributes

Attribute_Definition_Source: Habitat digitizing extension
Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name: Habitat description
Codeset_Source: Habitat classification scheme for the Pacific

Attribute:

Attribute_Label: POLYGONID
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: AREA
Attribute_Definition: Area of polygon
Attribute_Definition_Source: ArcView script
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 10.31
Range_Domain_Maximum: 162605543.23
Attribute_Units_of_Measure: NA

Attribute:

Attribute_Label: PERIMETER
Attribute_Definition: Perimeter of polygon
Attribute_Definition_Source: ArcView script
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 13.84
Range_Domain_Maximum: 165991.33
Attribute_Units_of_Measure: NA

Attribute:

Attribute_Label: ACRES
Attribute_Definition: Area of polygon in acres
Attribute_Definition_Source: ArcView script
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.003
Range_Domain_Maximum: 40179.83
Attribute_Units_of_Measure: NA

Attribute:

Attribute_Label: ISLAND
Attribute_Definition: Name of Island
Attribute_Definition_Source: Manually assigned string
Attribute_Domain_Values:

Unrepresentable_Domain: Manually assigned 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: M_COVER
Attribute_Definition: Major biological cover
Attribute_Definition_Source: Habitat classification scheme
Attribute_Domain_Values:

Unrepresentable_Domain: Assigned during digitizing

Attribute:

Attribute_Label: P_COVER
Attribute_Definition: Percent biological cover of major cover type
Attribute_Definition_Source: Habitat classification scheme
Attribute_Domain_Values:

Unrepresentable_Domain: Assigned during digitizing character 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: COVER_TYPE
Attribute_Definition:

Concatenated field of major cover and percent cover used for legend fill

Attribute_Definition_Source: ArcView script
Attribute_Domain_Values:

Unrepresentable_Domain: Character field

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Contact_Position: Biogeography Team Leader, Mapping Manager
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: 301-713-4388
Contact_Electronic_Mail_Address: tim.battista@noaa.gov

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. 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.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ArcView shapefile

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://cdn.coastalscience.noaa.gov/datasets/e99/data/habitats/aguijan_habitat.zip

Fees: None

Custom_Order_Process:

Contact NOAA for distribution options. All maps of the Mariana Archipelago prepared during this tenure are incorporated into this metadata summary.

Benthic Habitats of Aguijan in the Southern Mariana Archipelago 2001-2003, Derived from IKONOS Imagery

Metadata: