Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
Publication_Date: 200305
Title:
CRED Gridded Bathymetry of Southeast Maro Reef (100-010) in the Northwestern Hawaiian Islands
Geospatial_Data_Presentation_Form: raster digital data
File 100-010b is a 60-m ASCII grid of depth data collected near SE Maro Reef in the Northwestern Hawaiian Islands as of May 2003. This grid has been produced as part of the "Bathymetric Atlas of the Northwestern Hawaiian Islands -- A Planning Document for Benthic Habitat Mapping -- Draft -- May 2003. Data sources for the downloadable grids include: multibeam bathymetry from Simrad EM1002 and EM120 sonars aboard the R/V Kilo Moana collected in October/November 2003; multibeam bathymetry data from a SeaBeam 210 sonar aboard the R/V Kai'imikai-O-Kanaloa collected in 2000-2002; LIDAR data obtained using the LADS MK II lidar system; and depth data derived from IKONOS satellite imagery. No tidal corrections have been applied to the data. The data source location for each type of data is indicated in the "dot plot" browse objects. Additional single-beam bathymetric data are available in this area and are indicated on the 100-010b Plot C browse object, but these less accurate depths are not included in the downloadable grid. Multibeam data were processed using SABER editing software and MBSystem and multibeam, LIDAR and IKONOS data were integrated using MBSystem, and GMT. Grid spacing is 60-m, horizontal accuracy is 20m (no differential GPS correctors applied), vertical accuracy is depth dependent (~1% of water depth), WGS84 datum. These data are not to be used for navigation.
Purpose:
The data provide baseline information about the location of bathymetric data that are available in the NWHI as of May 2003. The data have been synthesized as a starting point for formulation of a coordinated NOAA plan for future work in the area and as a guideline to data quality and usefulness for a variety of purposes, including coral reef analyses, reserve, sanctuaries and fisheries interests, and charting.
Supplemental_Information:
Browse_Graphic_File_Description These files show all data available (multibeam, LIDAR, IKONOS depths, and single-beam echosounder)
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2000
Ending_Date: 2003
Currentness_Reference: ground condition
Status:
Progress: In Work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -170.05
East_Bounding_Coordinate: -169.093
North_Bounding_Coordinate: 25.184
South_Bounding_Coordinate: 24.441
Keywords:
Theme:
Theme_Keyword_Thesaurus: NCEI Geoportal Filter
Theme_Keyword: CoRIS_Metadata
Theme:
Theme_Keyword_Thesaurus: CRCP Project
Theme_Keyword:
Benthic Habitat Mapping and Characterization - Northwestern and Main Hawaiian Islands
COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Maro Reef (25N170W0001)
Place:
Place_Keyword_Thesaurus: CoRIS Region
Place_Keyword: NWHI
Access_Constraints: None.
Use_Constraints: These data are NOT TO BE USED FOR NAVIGATION
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
1) Joyce E. Miller, Joint Institute for Marine and Atmospheric Research, University of Hawaii/ Coral Reef Ecosystem Division, NOAA Pacific Islands Fisheries Science Center 2) Dr. Bruce Appelgate and Paul Johnson, Hawaii Mapping Research Group, University of Hawaii 3) Dr. John R. Smith, Hawaii Undersea Research Laboratory, University of Hawaii. 4) Dr. Richard Stumpf and Kristine Holderied, NOAA National Center for Coastal Ocean Science 5) Dr. Michael Parke, Coral Reef Ecosystem Division, NOAA Pacific Islands Fisheries Science Center
Security_Information:
Security_Classification_System: Not applicable
Security_Classification: Unclassified
Security_Handling_Description: Not applicable
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.3.0.800
Cross_Reference:
Citation_Information:
Originator: NOAA, U.S. Dept. of Commerce, National Ocean Service
Publication_Date: 200303
Title:
Atlas of the Shallow-Water Benthic Habitats of the Northwestern Hawaiian Islands
Horizontal accuracy is ~20 m as data were collected using GPS with no differential corrections. Vertical accuracy of data is data type and depth dependent; no tidal corrections were applied multibeam, IKONOS or single-beam data. Multibeam echosounder data are good to approximately 1% of water depth (depth ranges from ~10-5000m) ; IKONOS satellite depths are estimated to have a vertical accuracy of plus or minus 15 per cent; LIDAR data are accurate to IHO class 1 standards and are tide corrected.
Logical_Consistency_Report:
These data are believed to be logically consisten though no tests were performed
CRED Single-beam sonar data depth accuracy estimate 15% of depth
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Dr. Bruce Appelgate & Paul Johnson, University of Hawaii
Publication_Date: Unknown
Title: Simrad EM 120 multibeam bathymetric data
Type_of_Source_Media: Digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2002
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Simrad EM 120
Source_Contribution:
Simrad EM 120 (12 kHz) bathymetry and imagery data were collected in depths of ~100m and greater.
The EM 120 system was placed in stand-by mode in shallower water due to high noise levels.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Dr. Bruce Appelgate & Paul Johnson, University of Hawaii
Publication_Date: Unknown
Title: Simrad EM1002 Bathymetric Data
Type_of_Source_Media: Digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2002
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Simrad EM1002
Source_Contribution:
Simrad EM 1002 (95 kHz) bathymetry and imagery data were collected in depths of ~20-1000m.
The EM 1002 system was placed in stand-by mode in water depths greater than ~500 m.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Dr. John R. Smith, University of Hawaii
Publication_Date: Unknown
Title: SeaBeam 210 multibeam bathymetric data
Type_of_Source_Media: Digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2000
Ending_Date: 2002
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: SeaBeam 210
Source_Contribution:
The SeaBeam 210 multibeam sonar system is a hull-mounted, roll and pitch compensated
bathymetric deep seafloor mapping system capable of ensonifying a swath 70-80% of
the water depth. These data were used to plan and lay out the KM0206 multibeam surveys.
The SeaBeam bathymetric data, however, are of sufficient quality to provide depth information
that can be used for determination of the 25-, 50, and 100-fm boundaries.
Source_Information:
Source_Citation:
Citation_Information:
Originator:
Joyce E. Miller, Joint Institute for Marine and Atmospheric Research
Publication_Date: Unknown
Title: Simrad EK50 single-beam echosounder data
Type_of_Source_Media: Digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2001
Ending_Date: 2002
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Simrad EK50
Source_Contribution:
The depth information was used to plan and layout the 25-fm survey lines, which facilitated
more efficient surveying. The QTC system is designed for use in bottom classification;
processing and analysis of the QTC information for benthic habitat mapping is on-going.
Source_Information:
Source_Citation:
Citation_Information:
Originator:
Dr. Richard Stumpf and Kristine Holderied, NOAA National Ocean Services
Publication_Date: Unknown
Title: IKONOS estimated depths
Type_of_Source_Media: Digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: Unknown
Source_Currentness_Reference: Unknown
Source_Citation_Abbreviation: IKONOS
Source_Contribution:
IKONOS estimated depth data are used to map very shallow water, up to 16 meters in depth.
Source_Information:
Source_Citation:
Citation_Information:
Originator:
Dr. Michael Parke, NOAA Coral Reef Ecosystem Division/Pacific Island Fisheries Sciences Center
Publication_Date: Unknown
Title: NOS Single-beam data
Type_of_Source_Media: Digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: Unknown
Source_Currentness_Reference: Unknown
Source_Citation_Abbreviation: NOS Single-beam
Source_Contribution:
Historical data are used for water depth data in areas not surveyed for this project.
Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
These data are not to be used for navigational purposes.
NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute
such a warranty. NOAA 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.
Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)