Miles Anderson, Analytical Laboratories of Hawaii
2007
NCCOS Benthic Habitats of Palau Derived From IKONOS Imagery, 2003-2006
version 1.1
vector digital data
Kailua, Hawaii
Analytical Laboratories of Hawaii
http://products.coastalscience.noaa.gov/collections/benthic/e102palau/default.aspx
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
2007
Benthic Habitats of Palau prepared from IKONOS Satellite Imagery
version 1.1
map
Silver Spring, MD
NOAA's Ocean Service, National Centers for Coastal Ocean Science (NCCOS)
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, 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.
2003
2006
ground condition
None planned
134.111658
134.728587
8.217842
6.884663
NCEI Geoportal FilterCoRIS_Metadata
CRCP Project
Freely Associated States Shallow Water Benthic Habitat Mapping
1388
CoRIS Theme Thesaurus
EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs
EARTH SCIENCE > Biosphere > Vegetation > Algae > Coralline Algae
EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Habitats
None
submerged aquatic vegetation
unconsolidated sediments
zone
structure
cover
ISO 19115 Topic Category
oceans
014
environment
007
NOS Data Explorer Topic Category
Environmental Monitoring
CoRIS Discovery Thesaurus
Geographic Information > Habitats
CoRIS Place Thesaurus
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Carolines > Palau ( Belau ) (07N134E0000)
COUNTRY/TERRITORY > Palau > Palau > Palau ( Belau ) (07N134E0000)
CoRIS Region
Palau
None
Not for navigation
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
Biogeography Team Leader, Mapping Manager
mailing and physical address
1305 East West Highway
Silver Spring
MD
20910
301-713-3028
301-713-4384
tim.battista@noaa.gov
0800 - 1700, Monday to Friday, EST
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 percent for major classes and 75 percent for detailed classes.
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.
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.
RMS from digitized output was determined using the ESRI RMEer2 extension
and shown to be less than 1m when conducted at 1:6000 scale.
M.S. Coyne
2003
Classification Scheme for Benthic Habitats of the Pacific
document
Silver Spring, MD
NOAA's Ocean Service, National Centers for Coastal Ocean Science (NCCOS)
Report
2003
publication date
Classification Scheme for Benthic Habitats of the Pacific
This document identified the zone, structure and biological cover types attributed in the data set
Ken Buja
2003
Coral Reef Digitizing Extension
Silver Spring, MD
NOAA's Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS)
https://coastalscience.noaa.gov/projects/detail?key=203
computer program
2003
publication date
Habitat Digitizer
This ArcView extension was used to digitize and attribute benthic zones, structure and
biological cover of this map.
Space Imaging Inc.
2007
IKONOS Satellite Imagery
remote-sensing image
Thornton, CO
Space Imaging Inc.
This imagery was obtained at a 4 m pixel resolution, corrected for water column and
atmospheric effects, deglinted and Pan sharpened to one meter resolution.
Digital on external hard drive
2003
2006
ground condition
IKONOS imagery
Used to identify and digitize benthic habitats for Palau.
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
Vector
G-polygon
10038
Universal Transverse Mercator
53
0.999600
135.000000
0.000000
500000.000000
0.000000
coordinate pair
0.000256
0.000256
meters
D_WGS_1984
WGS_1984
6378137.000000
298.257224
Palau_Habitat_Map.shp
Shapefile attribute table
None
Shape
Feature geometry.
ESRI
Coordinates defining the features.
UNIQUEID
4 digit numerical value representing a unique habitat combination of structure and cover attributes
Habitat digitizing extension
Habitat description
Habitat classification scheme for the Pacific
POLYGONID
Incremental value generated for QA/QC adjacency test
ArcView script
Incremental numeric field
AREA
Area of polygon
ArcView script
56.842
464535353.569
meters
PERIMETER
Perimeter of polygon
ArcView script
28.928
1055231.686
meters
ACRES
Area of polygon in acres
ArcView script
0.014
114786.686
acres
Region
Number of region
Manually assigned string
Manually assigned character field
M_STRUCT
Major reef structure
Habitat digitizing extension
Assigned during digitizing character field
D_STRUCT
Detailed structure
Habitat digitizing extension
Assigned during digitizing character field
M_COVER
Major biological cover
Habitat classification scheme
Assigned during digitizing
P_COVER
Percent biological cover of major cover type
Habitat classification scheme
Assigned during digitizing character field
ZONE
Geomorphologic zone
Habitat classification scheme
Assigned during digitizing character field
COVER
Concatenated field of major cover and percent cover used for legend fill
ArcView script
Character field
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
Biogeography Team Leader, Mapping Manager
mailing and physical address
1305 East West Highway
Silver Spring
MD
20910
301-713-3028
301-713-4384
tim.battista@noaa.gov
0800 - 1700, Monday to Friday, EST
Downloadable 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.
NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA and NODC cannot assume liability for any 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.
ESRI Shapefile
https://cdn.coastalscience.noaa.gov/datasets/e102/data/Palau_BenthicHabitat_Map.zip
None
Contact NOAA for distribution options (see Distributor).
20200329
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
Biogeography Team Leader, Mapping Manager
mailing and physical address
1305 East West Highway
Silver Spring
MD
20910
301-713-3028
301-713-4384
tim.battista@noaa.gov
0800 - 1700, Monday to Friday, EST
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
20080225052100
None
20030101
20061231
https://www.coris.noaa.gov/metadata/records/html/nccos_benthic_habitat_palau_2003-06.html
685