39325
Hawaii Accuracy Assessment Point Data for Benthic Habitats of the Main Hawaiian Islands Prepared by Visual Interpretation from Remote Sensing Imagery Collected by NOAA Year 2000
hawaii_accuracy_asses
Data Set
Published / External
37185
Hawaii_2000
Project
Completed
2002-05-24
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 develop coral reef mapping methods and compare benthic habitat maps generated by photointerpreting georeferenced color aerial photography, hyperspectral and IKONOS satellite imagery. The cost effectiveness of acquisition and processing of remotely sensed imagery varies significantly between types of platforms deployed and imaging systems used to acquire the data. As a result, it is important to identify the strengths and weaknesses of the map products prepared from each of the types of digital imagery. These Accuracy Assessment point data were generated to assess the accuracy of the individual maps created from the three types of source information.Testing showed that the ability to generate benthic habitat maps with an overall accuracy of 90% to 95% confidence interval is reaching a threshold using imagery with three meter pixel size allowing for spectral enhancement of the imagery with reduced resolution. Increasing the intensity of field observation can partially compensate for this decrease in accuracy of the maps generated from the largest pixels. Habitat maps prepared from IKONOS satellite imagery should be accompanied by field observation wherever possible.
The National Ocean Service is conducting research 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. The goal of the work was to develop coral reef mapping methods and compare benthic habitat maps generated by photointerpreting georeferenced color aerial photography, hyperspectral and IKONOS satellite imagery. These Accuracy Assessment point data were generated to assess the accuracy of the individual maps created from the three types of source information.
388
Theme
ISO 19115 Topic Category
environment
Theme
ISO 19115 Topic Category
oceans
Theme
Point
Theme
Submerged aquatic vegetation
Theme
coral reef
Theme
coralline algae
Theme
environmental monitoring
Theme
habitat
Theme
oceans
Theme
reef
Theme
unconsolidated sediments
Theme
zone
Spatial
Hawaii
Spatial
U.S. Exclusive Economic Zone
Spatial
United States
National Centers for Coastal Ocean Science
Silver Spring
MD
Data Set
None Planned
map
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.
41294
utm_zone_5_aa.dbf
utm_zone_5_aa.dbf
Published / External
Completed
Shapefile Attribute Table | Description Source: software defined
Converted from FGDC using 'fgdc_to_inport_xml_entity.pl' script.
1
Test_area
Unknown
No
No
Active
Benthic habitat accuracy assessment test region. | Description Source: User Defined
Character Field
2
Area_1_hab
Unknown
No
No
Active
Most common major habitat in survey area. | Description Source: User Defined
Character Field
3
Area_1_mod
Unknown
No
No
Active
Modifier of most common major habitat in survey area. | Description Source: User Defined
Character Field
4
Area2
Unknown
No
No
Active
Second most common major habitat in survey area. | Description Source: User Defined
Character Field
5
Data_type
Unknown
No
No
Active
Accuracy Assessment | Description Source: User Defined
Character Field
6
Site_id
Unknown
No
No
Active
Unique Site ID | Description Source: User defined
Character Field
7
Gps_date
Unknown
No
No
Active
Date | Description Source: GPS data logger
Character Field (YYYYMMDD)
8
Gps_time
Unknown
No
No
Active
Time | Description Source: GPS data logger
Character Field
9
Depth_ft
NUMBER
No
No
Active
Depth in feet | Description Source: GPS data logger
0 - 91
10
Uw_assessm
Unknown
No
No
Active
Habitat assessment method | Description Source: GPS data logger
Character Field
11
Zone
Unknown
No
No
Active
Name of biological zone at each way point | Description Source: Benthic Habitats of the Main Hawaiian Islands
Character Field
12
Unconsolid
Unknown
No
No
Active
Major habitat type | Description Source: Benthic Habitats of the Main Hawaiian Islands
Character Field
13
Seagrass
Unknown
No
No
Active
Second level habitat type | Description Source: Benthic Habitats of the Main Hawaiian Islands
Character Field
14
Fleshy_mac
Unknown
No
No
Active
Second level habitat type | Description Source: Benthic Habitats of the Main Hawaiian Islands
Numeric Field
15
Coral_reef
Unknown
No
No
Active
Major habitat type | Description Source: Benthic Habitats of the Main Hawaiian Islands
Character Field
16
Uncol_hard
Unknown
No
No
Active
Second level habitat type | Description Source: Benthic Habitats of the Main Hawaiian Islands
Character Field
17
Encrust_co
Unknown
No
No
Active
Second level habitat type | Description Source: Benthic Habitats of the Main Hawaiian Islands
Character Field
18
Other
Unknown
No
No
Active
Major habitat type | Description Source: Benthic Habitats of the Main Hawaiian Islands
Character Field
19
Northing
Unknown
No
No
Active
Geographic Position | Description Source: GPS data logger
Numeric Field
20
Easting
Unknown
No
No
Active
Geographic position | Description Source: GPS data logger
Numeric Field
21
Max_pdop
Unknown
No
No
Active
Measure of positional strength of GPS satellite configuration | Description Source: GPS data logger
Numeric Field
22
Std_dev
Unknown
No
No
Active
Position precision | Description Source: GPS data logger
Numeric Field
23
Horz_prec
Unknown
No
No
Active
Horizontal precision | Description Source: GPS data logger
Numeric Field
24
Point
Unknown
No
No
Active
GIS Feature Type | Description Source: GPS data logger
Character Field
25
Comments
Unknown
No
No
Active
Habitat notes | Description Source: User defined
Character Field
Data Steward
2002-05-24
Position
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Distributor
2002-05-24
Position
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Metadata Contact
2002-05-24
Position
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Point of Contact
2002-05-24
Position
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Principal Investigator
2002-05-24
Person
Battista, Tim
tim.battista@noaa.gov
Ground Condition
-155.949615
-155.820807
20.041665
19.85063
Range
2001
2002
Unclassified
None
Not for navigation
http://coastalscience.noaa.gov/datasets/ccma/biogeo/hawaii/aap/hawaii_aa.zip
Downloadable Data
Shapefile
Shapefile
http://ccma.nos.noaa.gov/products/biogeography/hawaii_cd/data/
Online Resource
http://coastalscience.noaa.gov/datasets/ccma/biogeo/hawaii/aap/hawaii_aa.zip
Online Resource
2013-10-30
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.
2017-11-01
Replaced entire Lineage section to populate new Source Contribution field.
2018-02-08
Partial upload of Positional Accuracy fields only.
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 3; ESRI ArcCatalog 8.2.0.700
The points in this thematic data were acquired by GPS using a Trimble GeoExplorer 3 with a customized data dictionary designed to reflect the NOAA Classification Scheme for Benthic Habitats of the Main Eight Hawaiian Islands. All habitat determinations were made in the field, recorded in the GPS data logger and seamlessly transferred to ArcView GIS using Trimble Path Finder Office Software.
Point accuracy was determined by three tests producing circular RMS statistic. Point GPS data were acquired by repeated occupation a fixed point yielding a 95% sigma RMS of 2 meters compared to the position mean. Replicate GPS positions were collected after navigating to a way point by boat yielding RMS value of 5 meters. Registered monuments were occupied and replicate positions collected yielding an RMS value of 3 meters. Thus, all point features in these accuracy assessment data are at least 95% sigma of 5 meters.
Data are complete. Habitat attributes are determined by direct observation in the field. These data are considered truth at the time of collection. Habitat types are subject to change over time due to population dynamics of the dominant biological communities.
To maintain objectivity in the analysis of accuracy, an independent team conducted the field assessments. The Coral Reef Assessment and Monitoring Program (CRAMP) team made all benthic habitat decisions independent of the Analytical Laboratories of Hawaii (ALH) contractor. Furthermore, the CRAMP team independently conducted the assessment of the extent to which the photointerpretation met the field assessment determinations. These data were then used to prepare the statistical contrasts of the accuracy of the maps for each of the test areas for each of the image types.Transfer of the habitat assessment data is seamless from the field determination to the final GIS product. The data is not transcribed or rewritten by hand. Errors in processing are not expected.
Classification Scheme for Benthic Habitats: Main Eight Hawaiian Islands
M.S. Coyne
2001-05-11
Continuing
2001-05-11
http://ccma.nos.noaa.gov/products/biogeography/hawaii_cd/htm/manual.pdf
This document identifies the zone and habitat types attributed in the GIS data. | Source Geospatial Form: document | Type of Source Media: publication
Random Point Generator
Jeff Henness
2001-06-15
Discrete
2001-06-15
http://arcscripts.esri.com/details.asp?dbid=11605
Random points were generated to test the accuracy of benthic habitat maps. | Type of Source Media: Software
1
After photointerpretation was complete, the polygons representing detailed habitats were aggregated into major classes and at least 50 random geographically referenced points were created in each. This was done using a random point generator program obtained from the ESRI website, which randomly generates points inside an ArcView GIS polygon. Waypoint files were generated from these points and all waypoints, which could be safely accessed, were navigated to using a Trimble GeoExplorer 3 GPS data logger and habitat data was acquired by a team of CRAMP biologists.
2002-01-01T00:00:00
Random Point Generator
41294
Entity
utm_zone_5_aa.dbf
gov.noaa.nmfs.inport:39325
Tyler Christensen
2017-04-05T12:51:54
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