39425
Benthic Habitats of Palau Derived From IKONOS Imagery, 2003-2006
palau_habitat_map
Data Set
Published / External
37195
Palau
Project
Completed
2007
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.
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.
617
Theme
ISO 19115 Topic Category
environment
Theme
ISO 19115 Topic Category
oceans
Theme
Geospatial Platform
OceanCommunity
Theme
NOS Data Explorer Topic Category
Environmental Monitoring
Theme
coral reef
Theme
coralline algae
Theme
cover
Theme
habitat
Theme
reef
Theme
structure
Theme
submerged aquatic vegetation
Theme
unconsolidated sediments
Theme
zone
Spatial
Palau
National Centers for Coastal Ocean Science
Silver Spring
MD
Data Set
None Planned
vector digital data
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.
41361
Palau_Habitat_Map.shp
Palau_Habitat_Map.shp
Published / External
Completed
Shapefile attribute table | Description Source: None
Converted from FGDC using 'fgdc_to_inport_xml_entity.pl' script.
1
Shape
Unknown
No
No
Active
Feature geometry. | Description Source: ESRI
Coordinates defining the features.
2
UNIQUEID
VARCHAR
No
No
Active
4 digit numerical value representing a unique habitat combination of structure and cover attributes | Description Source: Habitat digitizing extension
Habitat description: Habitat classification scheme for the Pacific
3
POLYGONID
Unknown
No
No
Active
Incremental value generated for QA/QC adjacency test | Description Source: ArcView script
Incremental numeric field
4
AREA
NUMBER
No
No
Active
Area of polygon | Description Source: ArcView script
meters
56.842 - 464535353.569
5
PERIMETER
NUMBER
No
No
Active
Perimeter of polygon | Description Source: ArcView script
meters
28.928 - 1055231.686
6
ACRES
NUMBER
No
No
Active
Area of polygon in acres | Description Source: ArcView script
acres
0.014 - 114786.686
7
Region
Unknown
No
No
Active
Number of region | Description Source: Manually assigned string
Manually assigned character field
8
M_STRUCT
Unknown
No
No
Active
Major reef structure | Description Source: Habitat digitizing extension
Assigned during digitizing character field
9
D_STRUCT
Unknown
No
No
Active
Detailed structure | Description Source: Habitat digitizing extension
Assigned during digitizing character field
10
M_COVER
Unknown
No
No
Active
Major biological cover | Description Source: Habitat classification scheme
Assigned during digitizing
11
P_COVER
Unknown
No
No
Active
Percent biological cover of major cover type | Description Source: Habitat classification scheme
Assigned during digitizing character field
12
ZONE
Unknown
No
No
Active
Geomorphologic zone | Description Source: Habitat classification scheme
Assigned during digitizing character field
13
COVER
Unknown
No
No
Active
Concatenated field of major cover and percent cover used for legend fill | Description Source: ArcView script
Character field
Data Steward
2007
Position
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Distributor
2007
Position
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Metadata Contact
2007
Position
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Point of Contact
2007
Position
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Principal Investigator
2007
Person
Battista, Tim
tim.battista@noaa.gov
Ground Condition
134.111658
134.728587
8.217842
6.884663
Range
2003
2006
Yes
Yes
10038
Unclassified
Contact NOAA for distribution options (see Distributor).;
None
Not for navigation
http://coastalscience.noaa.gov/datasets/ccma/biogeo/palau/shapes/Palau_BenthicHabitat_Map.zip
Downloadable Data
ESRI Shapefile
Shapefile
http://ccma.nos.noaa.gov/products/biogeography/palau/
Online Resource
http://ccma.nos.noaa.gov/products/biogeography/palau/data/
Online Resource
http://coastalscience.noaa.gov/datasets/ccma/biogeo/palau/shapes/Palau_BenthicHabitat_Map.zip
Online Resource
2013-10-22
Date that the source FGDC record was last modified.
2017-04-05
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.
2017-09-13
Partial upload of Spatial Info section only.
2017-11-01
Replaced entire Lineage section to populate new Source Contribution field.
2018-02-08
Partial upload of Positional Accuracy fields only.
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 9.0.0.535
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.
RMS from digitized output was determined using the ESRI RMEer2 extension and shown to be less than 1m when conducted at 1:6000 scale.
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.
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.
Classification Scheme for Benthic Habitats of the Pacific
M.S. Coyne
2003-01-01
Discrete
2003
http://www.geoeye.com/
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
Ken Buja
2003-01-01
Discrete
2003
http://ccma.nos.noaa.gov/products/biogeography/digitizer/
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
GeoEye (nee Space Imaging Inc.)
2007-01-01
Range
2003
2006
http://www.geoeye.com/
Used to identify and digitize benthic habitats for Palau. | Source Geospatial Form: remote-sensing image | Type of Source Media: Digital on external hard drive
1
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.
2007-01-01T00:00:00
Classification Scheme for Benthic Habitats of the Pacific
41361
Entity
Palau_Habitat_Map.shp
gov.noaa.nmfs.inport:39425
Tyler Christensen
2017-04-05T12:52:28
SysAdmin InPortAdmin
2023-10-17T16:12:12
2018-02-08
National Centers for Coastal Ocean Science
NCCOS
1002
Public
No
2018-02-08
1 Year
2019-02-08