Benthic Habitats of Palau Derived From IKONOS Imagery, 2003-2006
Data Set (DS) | National Centers for Coastal Ocean Science (NCCOS)GUID: gov.noaa.nmfs.inport:39425 | Updated: October 17, 2023 | Published / External
Summary
Short Citation
National Centers for Coastal Ocean Science, 2024: Benthic Habitats of Palau Derived From IKONOS Imagery, 2003-2006, https://www.fisheries.noaa.gov/inport/item/39425.
Full Citation Examples
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.
Distribution Information
-
Shapefile
Downloadable Data
None
Not for navigation
Controlled Theme Keywords
environment, oceans
Child Items
Type | Title |
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Entity | Palau_Habitat_Map.shp |
Contact Information
Point of Contact
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Metadata Contact
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Extents
134.111658° W,
134.728587° E,
8.217842° N,
6.884663° S
2003 - 2006
Item Identification
Title: | Benthic Habitats of Palau Derived From IKONOS Imagery, 2003-2006 |
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Short Name: | palau_habitat_map |
Status: | Completed |
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 |
Keywords
Theme Keywords
Thesaurus | Keyword |
---|---|
ISO 19115 Topic Category |
environment
|
ISO 19115 Topic Category |
oceans
|
UNCONTROLLED | |
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 |
Spatial Keywords
Thesaurus | Keyword |
---|---|
UNCONTROLLED | |
None | Palau |
Physical Location
Organization: | National Centers for Coastal Ocean Science |
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City: | Silver Spring |
State/Province: | MD |
Data Set Information
Data Set Scope Code: | Data Set |
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Maintenance Frequency: | None Planned |
Data Presentation Form: | vector digital 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. |
Support Roles
Data Steward
Date Effective From: | 2007 |
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Date Effective To: | |
Contact (Position): | NCCOS Scientific Data Coordinator |
Email Address: | NCCOS.data@noaa.gov |
Distributor
Date Effective From: | 2007 |
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Date Effective To: | |
Contact (Position): | NCCOS Scientific Data Coordinator |
Email Address: | NCCOS.data@noaa.gov |
Metadata Contact
Date Effective From: | 2007 |
---|---|
Date Effective To: | |
Contact (Position): | NCCOS Scientific Data Coordinator |
Email Address: | NCCOS.data@noaa.gov |
Point of Contact
Date Effective From: | 2007 |
---|---|
Date Effective To: | |
Contact (Position): | NCCOS Scientific Data Coordinator |
Email Address: | NCCOS.data@noaa.gov |
Principal Investigator
Date Effective From: | 2007 |
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Date Effective To: | |
Contact (Person): | Battista, Tim |
Email Address: | tim.battista@noaa.gov |
Extents
Currentness Reference: | Ground Condition |
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Extent Group 1
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 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
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Start: | 2003 |
End: | 2006 |
Spatial Information
Spatial Representation
Representations Used
Vector: | Yes |
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Vector Representation 1
Complex Object Present?: | Yes |
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Complex Object Count: | 10038 |
Access Information
Security Class: | Unclassified |
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Data Access Procedure: |
Contact NOAA for distribution options (see Distributor).; |
Data Access Constraints: |
None |
Data Use Constraints: |
Not for navigation |
Distribution Information
Distribution 1
Download URL: | http://coastalscience.noaa.gov/datasets/ccma/biogeo/palau/shapes/Palau_BenthicHabitat_Map.zip |
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Distributor: | |
Description: |
Downloadable Data |
File Type (Deprecated): | ESRI Shapefile |
Distribution Format: | Shapefile |
URLs
URL 1
URL: | http://coastalscience.noaa.gov/datasets/ccma/biogeo/palau/shapes/Palau_BenthicHabitat_Map.zip |
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URL Type: |
Online Resource
|
URL 2
URL: | http://ccma.nos.noaa.gov/products/biogeography/palau/data/ |
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URL Type: |
Online Resource
|
URL 3
URL: | http://ccma.nos.noaa.gov/products/biogeography/palau/ |
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URL Type: |
Online Resource
|
Activity Log
Activity Log 1
Activity Date/Time: | 2013-10-22 |
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Description: |
Date that the source FGDC record was last modified. |
Activity Log 2
Activity Date/Time: | 2017-04-05 |
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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 Log 3
Activity Date/Time: | 2017-09-13 |
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Description: |
Partial upload of Spatial Info section only. |
Activity Log 4
Activity Date/Time: | 2017-11-01 |
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Description: |
Replaced entire Lineage section to populate new Source Contribution field. |
Activity Log 5
Activity Date/Time: | 2018-02-08 |
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Description: |
Partial upload of Positional Accuracy fields only. |
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
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. |
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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. |
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. |
Lineage
Sources
Classification Scheme for Benthic Habitats of the Pacific
Contact Name: | M.S. Coyne |
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Publish Date: | 2003-01-01 |
Extent Type: | Discrete |
Extent Start Date/Time: | 2003 |
Citation URL: | http://www.geoeye.com/ |
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 |
Coral Reef Digitizing Extension
Contact Name: | Ken Buja |
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Publish Date: | 2003-01-01 |
Extent Type: | Discrete |
Extent Start Date/Time: | 2003 |
Citation URL: | http://ccma.nos.noaa.gov/products/biogeography/digitizer/ |
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 |
IKONOS Satellite Imagery
Contact Name: | GeoEye (nee Space Imaging Inc.) |
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Publish Date: | 2007-01-01 |
Extent Type: | Range |
Extent Start Date/Time: | 2003 |
Extent End Date/Time: | 2006 |
Citation URL: | http://www.geoeye.com/ |
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 |
Process Steps
Process Step 1
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. |
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Process Date/Time: | 2007-01-01 00:00:00 |
Source: | Classification Scheme for Benthic Habitats of the Pacific |
Child Items
Rubric scores updated every 15m
Type | Title | |
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Entity | Palau_Habitat_Map.shp |
Catalog Details
Catalog Item ID: | 39425 |
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GUID: | gov.noaa.nmfs.inport:39425 |
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 Last Review Date: | 2018-02-08 |
Metadata Review Frequency: | 1 Year |
Metadata Next Review Date: | 2019-02-08 |