Benthic Habitats of Palau Derived From IKONOS Imagery, 2003-2006
National Centers for Coastal Ocean Science
Data Set
(DS)
| ID: 39425
| Published / External
Created: 2017-04-05
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Last Modified: 2023-10-17
Project (PRJ) | ID: 37195
ID: 39425
Data Set (DS)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | Benthic Habitats of Palau Derived From IKONOS Imagery, 2003-2006 |
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Short Name | palau_habitat_map |
* Status | Completed |
Creation Date | |
Revision Date | |
• Publication Date | 2007 |
* » Abstract |
This project is a cooperative effort among the National Ocean Service, National Centers for Coastal Ocean Science, Center for Coastal Monitoring and Assessment; the University of Hawaii; and Analytical Laboratories of Hawaii, LLC. The goal of the work was to map the coral reef habitats of Palau by visual interpretation and manual delineation of IKONOS satellite imagery. A two tiered habitat classification system was used in this work. The scheme integrates geomorphologic reef structure and biological cover into a single scheme and subsets each into detail. It also includes thirteen zones. |
* 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. |
Notes |
617 |
Other Citation Details | |
• Supplemental Information | |
DOI (Digital Object Identifier) | |
DOI Registration Authority | |
DOI Issue Date |
Keywords
Theme Keywords
Thesaurus | Keyword |
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ISO 19115 Topic Category | environment |
ISO 19115 Topic Category | oceans |
Geospatial Platform | OceanCommunity |
NOS Data Explorer Topic Category | Environmental Monitoring |
None | coral reef |
None | coralline algae |
None | cover |
None | habitat |
None | reef |
None | structure |
None | submerged aquatic vegetation |
None | unconsolidated sediments |
None | zone |
Temporal Keywords
Thesaurus | Keyword |
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* Spatial Keywords
Thesaurus | Keyword |
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None | Palau |
Stratum Keywords
Thesaurus | Keyword |
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Instrument Keywords
Thesaurus | Keyword |
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Platform Keywords
Thesaurus | Keyword |
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Physical Location
• » Organization | National Centers for Coastal Ocean Science |
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• » City | Silver Spring |
• » State/Province | MD |
• Country | |
• » Location Description |
Data Set Information
* Data Set Scope Code | Data Set |
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• Data Set Type | |
• Maintenance Frequency | None Planned |
Maintenance Note | |
» Data Presentation Form | vector digital data |
• Entity Attribute Overview | |
Entity Attribute Detail Citation | |
Entity Attribute Detail URL | |
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. |
Data Set Credit |
Support Roles
* » Support Role | Data Steward |
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* » Date Effective From | 2007 |
Date Effective To | |
Position | NCCOS Scientific Data Coordinator |
Email Address | NCCOS.data@noaa.gov |
Phone | |
Fax | |
Mobile | |
URL | |
Business Hours | |
Contact Instructions |
* » Support Role | Distributor |
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* » Date Effective From | 2007 |
Date Effective To | |
Position | NCCOS Scientific Data Coordinator |
Email Address | NCCOS.data@noaa.gov |
Phone | |
Fax | |
Mobile | |
URL | |
Business Hours | |
Contact Instructions |
* » Support Role | Metadata Contact |
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* » Date Effective From | 2007 |
Date Effective To | |
Position | NCCOS Scientific Data Coordinator |
Email Address | NCCOS.data@noaa.gov |
Phone | |
Fax | |
Mobile | |
URL | |
Business Hours | |
Contact Instructions |
* » Support Role | Point of Contact |
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* » Date Effective From | 2007 |
Date Effective To | |
Position | NCCOS Scientific Data Coordinator |
Email Address | NCCOS.data@noaa.gov |
Phone | |
Fax | |
Mobile | |
URL | |
Business Hours | |
Contact Instructions |
* » Support Role | Principal Investigator |
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* » Date Effective From | 2007 |
Date Effective To | |
Person | Battista, Tim |
Email Address | tim.battista@noaa.gov |
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* » Support Role | |
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* Contact Instructions |
Extents
Currentness Reference | Ground Condition |
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Extent Group 1
Extent Description |
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Extent Group 1 / Geographic Area 1
* » W° Bound | 134.111658 |
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* » E° Bound | 134.728587 |
* » N° Bound | 8.217842 |
* » S° Bound | 6.884663 |
* » Description |
Extent Group 1 / Vertical Extent
EPSG Code | |
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Vertical Minimum | |
Vertical Maximum |
Extent Group 1 / Time Frame 1
* » Time Frame Type | Range |
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* » Start | 2003 |
End | 2006 |
Alternate Start As Of Info | |
Alternate End As Of Info | |
Description |
Spatial Information
Spatial Resolution
Angular Distance | |
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Vertical Distance | |
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Equivalent Scale Denominator | |
Level of Detail Description |
Spatial Representation
Grid Representation Used? | |
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Vector Representation Used? | Yes |
Text / Table Representation Used? | |
TIN Representation Used? | |
Stereo Model Representation Used? | |
Video Representation Used? |
Grid Representation
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Vector Representation
Topology Level | |
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Complex Object Present? | Yes |
Complex Object Count | 10038 |
Composite Object Present? | |
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Vector Representation
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Reference Systems
Reference System
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Access Information
Data License | |
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Data License URL | |
Data License Statement | |
* » Security Class | Unclassified |
* Security Classification System | |
Security Handling Description | |
• Data Access Policy | |
» Data Access Procedure |
Contact NOAA for distribution options (see Distributor).; |
• » Data Access Constraints |
None |
• Data Use Constraints |
Not for navigation |
Metadata Access Constraints | |
Metadata Use Constraints |
Distribution Information
Start Date | |
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» Download URL | http://coastalscience.noaa.gov/datasets/ccma/biogeo/palau/shapes/Palau_BenthicHabitat_Map.zip |
Distributor | |
File Name | |
Description |
Downloadable Data |
File Date/Time | |
File Type (Deprecated) | ESRI Shapefile |
Distribution Format | Shapefile |
File Size | |
Application Version | |
Compression | |
Review Status |
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» Download URL | |
Distributor | |
File Name | |
Description | |
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File Type | |
FGDC Content Type | |
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Application Version | |
Compression | |
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» Download URL | |
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File Name | |
Description | |
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URLs
URL | http://coastalscience.noaa.gov/datasets/ccma/biogeo/palau/shapes/Palau_BenthicHabitat_Map.zip |
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Name | |
URL Type | Online Resource |
File Resource Format | |
Description |
URL | http://ccma.nos.noaa.gov/products/biogeography/palau/data/ |
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Name | |
URL Type | Online Resource |
File Resource Format | |
Description |
URL | http://ccma.nos.noaa.gov/products/biogeography/palau/ |
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Name | |
URL Type | Online Resource |
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Description |
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Activity Log
Activity Time | 2013-10-22 |
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Activity Type | |
Responsible Party | |
Description |
Date that the source FGDC record was last modified. |
Activity Time | 2017-04-05 |
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Activity Type | |
Responsible Party | |
Description |
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. |
Activity Time | 2017-09-13 |
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Activity Type | |
Responsible Party | |
Description |
Partial upload of Spatial Info section only. |
Activity Time | 2017-11-01 |
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Activity Type | |
Responsible Party | |
Description |
Replaced entire Lineage section to populate new Source Contribution field. |
Activity Time | 2018-02-08 |
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Activity Type | |
Responsible Party | |
Description |
Partial upload of Positional Accuracy fields only. |
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Issues
Issue Date | |
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Issue |
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Author | |
Issue |
Issue Date | |
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Author | |
Issue |
Technical Environment
Description |
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 9.0.0.535 |
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Data Quality
Representativeness | |
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Accuracy |
This interim GIS polygon product was generated from eleven regions of Palau which, when combined, constitute the entire Palau Archipelago. A statistical analysis that generates a Tau statistic will be performed. The Tau statistic for the major classes exceeded 0.85 and exceeded 0.75 for detailed classes. Overall thematic accuracy exceeded 85% for major classes and 75% for detailed classes. |
Analytical Accuracy | |
Horizontal Positional Accuracy |
RMS from digitized output was determined using the ESRI RMEer2 extension and shown to be less than 1m when conducted at 1:6000 scale. |
Vertical Positional Accuracy | |
Quantitation Limits | |
Bias | |
Comparability | |
Completeness Measure | |
Precision | |
Analytical Precision | |
Field Precision | |
Sensitivity | |
Detection Limit | |
Completeness Report |
NOAA supplied georeferenced imagery to Analytical Laboratories of Hawaii. Delineation of all habitat boundaries was conducted with the image scale at 1:6,000 or less. 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 or for areas of land were polygons of smaller then the MMU allowed. Furthermore, land features were delineated with the MMU restriction removed. |
Conceptual Consistency |
All mapping was conducted from orthorectified IKONOS satellite imagery provided by NOAA 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, void polygons and zone attribute check. 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. |
» Quality Control Procedures Employed |
Data Management
» Have Resources for Management of these Data Been Identified? | |
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» Approximate Percentage of Budget for these Data Devoted to Data Management | |
» Do these Data Comply with the Data Access Directive? | |
» Is Access to the Data Limited Based on an Approved Waiver? | |
» If Distributor (Data Hosting Service) is Needed, Please Indicate | |
» Approximate Delay Between Data Collection and Dissemination | |
» If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed |
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» Actual or Planned Long-Term Data Archive Location | |
» If World Data Center or Other, Specify | |
» If To Be Determined, Unable to Archive, or No Archiving Intended, Explain |
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» Approximate Delay Between Data Collection and Archiving | |
» How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive? |
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Lineage
» Lineage Statement |
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Sources
Citation Title | Classification Scheme for Benthic Habitats of the Pacific |
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Contact Role Type | |
Contact Type | |
Contact Name | M.S. Coyne |
Publish Date | 2003-01-01 |
Extent Type | Discrete |
Extent Start Date/Time | 2003 |
Extent End Date/Time | |
Scale Denominator | |
Citation URL | http://www.geoeye.com/ |
Citation URL Name | |
Citation URL Description | |
Source Contribution |
This document identified the zone, structure and biological cover types attributed in the data set | Source Geospatial Form: document | Type of Source Media: Report |
Citation Title | Coral Reef Digitizing Extension |
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Contact Role Type | |
Contact Type | |
Contact Name | Ken Buja |
Publish Date | 2003-01-01 |
Extent Type | Discrete |
Extent Start Date/Time | 2003 |
Extent End Date/Time | |
Scale Denominator | |
Citation URL | http://ccma.nos.noaa.gov/products/biogeography/digitizer/ |
Citation URL Name | |
Citation URL Description | |
Source Contribution |
This ArcView extension was used to digitize and attribute benthic zones, structure and biological cover of this map. | Type of Source Media: computer program |
Citation Title | IKONOS Satellite Imagery |
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Contact Role Type | |
Contact Type | |
Contact Name | GeoEye (nee Space Imaging Inc.) |
Publish Date | 2007-01-01 |
Extent Type | Range |
Extent Start Date/Time | 2003 |
Extent End Date/Time | 2006 |
Scale Denominator | |
Citation URL | http://www.geoeye.com/ |
Citation URL Name | |
Citation URL Description | |
Source Contribution |
Used to identify and digitize benthic habitats for Palau. | Source Geospatial Form: remote-sensing image | Type of Source Media: Digital on external hard drive |
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Scale Denominator |
Process Steps
Process Step Number | 1 |
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» Description |
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 or less. All IKONOS imagery was processed by NOAA 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. The overall map production plan includes a first draft map completed with features in the imagery where uncertainties existed, due to confusing or difficult to interpret signatures, 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 are converted to GPS waypoints using Trimble Pathfinder Software and are navigated to in the field using a Trimble GeoExplorer 3 GPS data logger. A benthic habitat characterization is conducted at each site by use of a tethered video camera 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 are recorded. A second draft of the map is generated incorporating these ground validation data. This is a draft 1 map product. Though the product is topologically clean and meets NOAA GIS standards, attribute accuracy is at an interim level of production and will be considerably modified prior to draft 2 and final publication. |
Process Date/Time | 2007-01-01 00:00:00 |
Process Contact | |
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Email Address | |
Source | Classification Scheme for Benthic Habitats of the Pacific |
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Acquisition Information
Instruments
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FAQs
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Related Items
Item Type | Relationship Type | Title |
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Catalog Details
Catalog Item ID | 39425 |
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Metadata Record Created By | Tyler Christensen |
Metadata Record Created | 2017-04-05 12:52+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2023-10-17 16:12+0000 |
Metadata Record Published | 2018-02-08 |
Owner Org | NCCOS |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2018-02-08 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2019-02-08 |
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