Gridded bathymetry of Galvez Bank, S. Galvez Bank, and 11-Mile Reef, Territory of Guam, USA

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator:
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: 20110430
Title:
Gridded bathymetry of Galvez Bank, S. Galvez Bank, and 11-Mile Reef, Territory of Guam, USA
Geospatial_Data_Presentation_Form: digital data
Online_Linkage: http://www.soest.hawaii.edu/pibhmc
Online_Linkage:
http://www.soest.hawaii.edu/pibhmc/cms/data-by-location/cnmi-guam/submerged-banks/galvez-bank/
Description:
Abstract:
Gridded bathymetry (5m) of the bank environment of Galvez Bank, and 2 small nearby banks S. Galvez Bank (~ 3 nmi south of Galvez) and 11-mile Reef (~ 5 nmi north of Galvez, 11 nmi west of Guam), Territory of Guam, USA. These netCDF and ASCII grids includes multibeam bathymetry from the Reson 8101 multibeam sonar aboard the NOAA Ship Oscar E. Sette collected as of May 2010 by the NOAA Coral Reef Ecosystem Division in depths between 10 and 300 meters.
Purpose:
These netCDF and ASCII grids were created using data gathered from multibeam soundings for use as a planning and reference document. The data are also being used for benthic habitat mapping, for locating Essential Fish Habitat, and for studying geologic features of the area. Refer to supplemental information for description of instrument and survey.
Supplemental_Information:
Multibeam data were collected aboard the NOAA Ship Oscar Elton Sette, a 224' (68 m) United States National Oceanographic and Atmospheric Administration research ship. The NOAA Ship Sette's survey sensors included a 240-kHz pole-mounted Reson 8101ER sonar, which provides bathymetry and imagery data, a TSS/Applanix POS/MV Model 320, which measures position,velocity, attitude and heading, and a Seabird SBE19 CTD used to measure sound velocity profiles.

Specific equipment configurations are documented in metadata from cruise SE1002. These metadata can be accessed at: http://www.soest.hawaii.edu/pibhmc/cms/cruise-catalog/

Raster_Object_Information gal_5m_100m Raster_Object_Type Grid Cell Row_Count 1869 Column_Count 1623 Vertical_Count 1 Raster_Object_Information sgal5m Raster_Object_Type Grid Cell Row_Count 905 Column_Count 1293 Vertical_Count 1 Raster_Object_Information ngal5m Raster_Object_Type Grid Cell Row_Count 357 Column_Count 307 Vertical_Count 1

Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20100211
Ending_Date: 20100314
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: 144.391
East_Bounding_Coordinate: 144.500
North_Bounding_Coordinate: 13.233
South_Bounding_Coordinate: 12.983
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 - Commonwealth of the Northern Mariana Islands and Guam
Theme_Keyword: 1398
Theme:
Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
Theme_Keyword:
EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: elevation
Theme_Keyword: 006
Theme:
Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus
Theme_Keyword: Geographic Information > Bathymetry
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Bathymetry
Theme_Keyword: Multibeam sonar
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Galvez Bank
Place_Keyword: Territory of Guam
Place_Keyword: United States of America
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: S. Galvez Bank
Place_Keyword: Territory of Guam
Place_Keyword: United States of America
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: 11-Mile Reef
Place_Keyword: Territory of Guam
Place_Keyword: United States of America
Place:
Place_Keyword_Thesaurus: CoRIS Place Thesaurus
Place_Keyword:
COUNTRY/TERRITORY > United States of America > Guam > Galvez Bank (13N144E0049)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Galvez Bank (13N144E0049)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Eleven Mile Reef (13N144E0059)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > Guam > Eleven Mile Reef (13N144E0059)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > South Galvez Bank (13N144E0060)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > Guam > South Galvez Bank (13N144E0060)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > Guam > Guam (13N144E0000)
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Guam (13N144E0000)
Place:
Place_Keyword_Thesaurus: CoRIS Region
Place_Keyword: Guam
Access_Constraints: none
Use_Constraints:
These data are not to be used for navigation purposes. Please acknowledge NOAA and the Joint Institute for Marine and Atmospheric Research (JIMAR) University of Hawaii as the sources of this information.
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)
Contact_Address:
Address_Type: mailing and physical address
Address: NOAA IRC
Address: NMFS/PIFSC/CRED
Address: 1845 WASP Blvd., Building 176
City: Honolulu
State_or_Province: HI
Postal_Code: 96818
Contact_Voice_Telephone: 808 725-5360
Contact_Facsimile_Telephone: 808 725-5429
Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
Contact_Instructions: e-mail preferred
Browse_Graphic:
Browse_Graphic_File_Name:
http://www.soest.hawaii.edu/pibhmc/CNMI_images/Gal_5m_bathy_440.jpg
Browse_Graphic_File_Description: Multibeam Bathymetry
Browse_Graphic_File_Type: JPEG
Data_Set_Credit: PIBHMC, CRED, PIFSC, NOAA and JIMAR
Security_Information:
Security_Classification_System: Not applicable
Security_Classification: Unclassified
Security_Handling_Description: Not applicable
Native_Data_Set_Environment:
netCDF file created using the Generic Mapping Tools (GMT) and ArcGIS ASCII file, both created in a LINUX environment

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Data are collected for resource management and research purposes and are tested for internal consistency; however, no effort is made to compare these data to external references or to other published data.
Logical_Consistency_Report:
These data are believed to be logically consistent though no tests were performed
Completeness_Report: Complete
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Horizontal positioning system: GPS (SPS) Horizontal position accuracy: 25 m
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
1 m Raw sounding resolution: Variable
Lineage:
Process_Step:
Process_Description:
Multibeam swath files are acquired in the Generic Sensor Format (GSF) and are edited on a swath by swath basis using SAIC's SABER editing software. The edited swath files are then combined into a Pure File Magic (PFM) format in SABER and area based editing is performed. The edited PFM is then exported as X,Y,Z. The resulting X,Y,Z data are then gridded using xyz2grd, a Generic Mapping Tools (GMT) algorithm that converts an ASCII or binary table to a netCDF grid file format. GMT is an open source collection of tools for manipulating geographic data sets. Grid nodes with more than one value are set to the average value and unconstrained nodes are set to NaN. Finally, the netCDF grid is clipped at a depth that minimizes data gaps for the specified grid cell size and then converted to an ArcGIS ASCII file format using LINUX/UNIX commands in combination with GMT. Additional information about GMT can be found at: www.soest.hawaii.edu/gmt and additional information about the multibeam data processing is recorded in the cruise metadata.
Process_Date: 20110331

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 55
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: .9996
Longitude_of_Central_Meridian: -147
Latitude_of_Projection_Origin: 0
False_Easting: 500000
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: Row and Column
Coordinate_Representation:
Abscissa_Resolution: 5
Ordinate_Resolution: 5
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224
Vertical_Coordinate_System_Definition:
Depth_System_Definition:
Depth_Datum_Name: mean lower low water
Depth_Resolution: 0.01
Depth_Distance_Units: meters
Depth_Encoding_Method: Attribute Values

Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
Depth values are real values based on the average of the soundings that fell within the extracted grid cells. The number of soundings per grid cell range from >1000 soundings in shallow depths to as few as 20 soundings in deeper areas. A total error budget for this survey has not been developed. Therefore, the accuracy of depth measurements should be considered to be within 1 meter.
Entity_and_Attribute_Detail_Citation: none

Distribution_Information:
Distributor:
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)
Contact_Address:
Address_Type: mailing and physical address
Address: NOAA IRC
Address: NMFS/PIFSC/CRED
Address: 1845 WASP Blvd., Building 176
City: Honolulu
State_or_Province: HI
Postal_Code: 96818
Contact_Voice_Telephone: 808 725-5360
Contact_Facsimile_Telephone: 808 725-5429
Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
Contact_Instructions: e-mail preferred
Resource_Description: Downloadable Data
Distribution_Liability:
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.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: netCDF and Arc ASCII
Format_Information_Content:
These data can be downloaded as either a 2-D binary netCDF raster grid or an ArcGIS ASCII text file. The netCDF grid is the default grid file format used by GMT (Generic Mapping Tools), which created this file. More information can be located at http://www.soest.hawaii.edu/gmt/and http://www.unidata.ucar.edu/software/netcdf/. The Arc ASCII file, for use in ESRI's (http://www.esri.com) GIS software, can be converted to an Arc Raster Grid using ArcToolbox ASCII to Raster conversion tool.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
ftp://ftp.soest.hawaii.edu/pibhmc/website/data/cnmi-guam/bathymetry/gal_5m.asc.zip
Fees: None

Metadata_Reference_Information:
Metadata_Date: 20190605
Metadata_Review_Date: 20110502
Metadata_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)
Contact_Address:
Address_Type: mailing and physical address
Address: NOAA IRC
Address: NMFS/PIFSC/CRED
Address: 1845 WASP Blvd., Building 176
City: Honolulu
State_or_Province: HI
Postal_Code: 96818
Contact_Voice_Telephone: 808 725-5360
Contact_Facsimile_Telephone: 808 725-5429
Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
Contact_Instructions: e-mail preferred
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: Universal Time
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None

CoRIS:
CoRIS_ID: 20110502062342
CoRIS_Children: None
CoRIS_Beginning_Date: 20100211
CoRIS_Ending_Date: 20100314
CoRIS_Metadata_Link:
https://www.coris.noaa.gov/metadata/records/html/threebanks_guam_5m.html
CoRIS_Tracking_ID: 6265

Generated by mp version 2.9.48 on Mon Mar 18 11:05:18 2024