Mosaic of gridded multibeam bathymetry and bathymetry derived from multispectral World View-2 satellite imagery of Sarigan Island, Territory of Mariana, USA.

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Distribution_Information
• Metadata_Reference_Information
• CoRIS

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: 20140821

Title:

Mosaic of gridded multibeam bathymetry and bathymetry derived from multispectral World View-2 satellite imagery of Sarigan Island, Territory of Mariana, USA.

Geospatial_Data_Presentation_Form: raster digital data

Online_Linkage:

http://www.soest.hawaii.edu/pibhmc/cms/data-by-location/cnmi-guam/sarigan-island/sarigan-island-bathymetry/

Online_Linkage: https://www.soest.hawaii.edu/pibhmc/cms/

Description:

Abstract:

Gridded multibeam bathymetry is integrated with bathymetry derived from multpectral World View-2 satellite data. Gridded (10 m cell size) multibeam bathymetry collected aboard NOAA Ship Hiialaka'i and R/V AHI in 2007, a 224’ (68 m) United States National Oceanographic and Atmospheric Administration research ship. Bathymetry values shallower than ~20 m were derived by gauging the reletive attenuation of coastal, blue, green and yellow spectral radiance as a function of depth. A multiple linear regression analysis of coastal, blue, green and yellow band spectral values against depth determined the variables of y-intercept, coastal,blue, green and yellow slope values. Variables then used in multivariate slope intercept formula to derive depth. Digital image processing to derive depths conducted with the ENVI 4.8 software program while data editing and integration was performed using ArcGIS 10.1 This data set is for the shelf environment of Sarigan Island, Mariana.

Purpose:

The data were derived in support of NOAA Coral Reef Conservation Program goals. Goal 1 is to map all U.S. Coral Reef Ecosystems. This data set specifically addresses Objective 1 and 4: to develop high-resolution benthic maps and to characterize priority deep water reefs and associated habitats. This integration of derived bathymetry with multibeam sonar data provides a GIS layer with expanded spatial coverage that may be used for benthic and essential fish habitat characterization, and for the study of geologic features. By combining the dataset with other bathymetry, backscatter, derivatives, and in situ data, they collectively compose benthic habitat maps designed to be used to understand and predict shallow depth (0m to 600m) benthic habitats for organisms that inhabit coral reef ecosystems.

Supplemental_Information:

Gridded multibeam data were collected aboard the Hi'ialakai, a 218’ United States National Oceanographic and Atmospheric Administration (NOAA) research ship and aboard the R/V AHI (Acoustic Habitat Investigator), a 25’ survey launch owned operated by the NOAA Pacific Islands Fisheries Science Center in Honolulu, HI. The metadata for the bathymetry is documented in the product metadata, Sarigan_10m.txt. http://www.soest.hawaii.edu/pibhmc/cms/data-by-location/cnmi-guam/sarigan-island/sarigan-island-bathymetry/ Original World View-2 imagery was purchased to support the Pacific Islands Geographic Information System (GIS) project and National Ocean Service's (NOS) coral mapping activities. Orthographically corrected World View-2 Imagery was provided by NOAA. The metadata for this World View-2 imagery is documented in the original product metadata, 13FEB09011102-M2AS-052760757110_04_P003 (http://www.soest.hawaii.edu/pibhmc/).

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20070525

Ending_Date: 20140419

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: 145.745

East_Bounding_Coordinate: 145.827

North_Bounding_Coordinate: 16.738

South_Bounding_Coordinate: 16.673

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 in the Pacific Islands Region

Theme_Keyword: 467

Theme:

Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus

Theme_Keyword:

EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry

Theme_Keyword:

EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Water Depth

Theme_Keyword:

EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Remote Sensing > Satellite (digital scans) > WorldView-2

Theme:

Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus

Theme_Keyword: Geographic Information > Bathymetry

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: Slope

Theme_Keyword: Bathymetry

Theme_Keyword: Multibeam sonar

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category

Theme_Keyword: elevation

Theme_Keyword: 006

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Sarigan Island

Place_Keyword: Commonwealth of the Northern Mariana Islands

Place_Keyword: United States of America

Place:

Place_Keyword_Thesaurus: CoRIS Place Thesaurus

Place_Keyword:

OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Sarigan Island > Sarigan Island (16N145E0003)

Place_Keyword:

COUNTRY/TERRITORY > Northern Mariana Islands > Sarigan Island > Sarigan Island (16N145E0003)

Access_Constraints: None

Use_Constraints:

These data are not to be used for navigation purposes. Please acknowledge the NOAA Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center and the Pacific Islands Benthic Habitat Mapping Center, School of Ocean and Earth Science and Technology, 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

Country: USA

Contact_Voice_Telephone: 808 725-5360

Contact_Electronic_Mail_Address: pibhmc@soest.hawaii.edu

Browse_Graphic:

Browse_Graphic_File_Name:

http://www.soest.hawaii.edu/pibhmc/CNMI_images/SAR_DBMB_10m_445.jpg

Browse_Graphic_File_Description: Gridded Bathymetry

Browse_Graphic_File_Type: jpg

Data_Set_Credit:

Benthic Habitat Mapping Group, Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), NOAA

Security_Information:

Security_Classification_System: Not applicable

Security_Classification: Unclassified

Security_Handling_Description: Not applicable

Native_Data_Set_Environment:

ArcGIS ASCII file or ArcGIS Grid file, bathymetry derived from 2x2m multispectral satellite imagery (World View-2) using ENVI 4.8, multibeam and derived bathymetry were integrated using ArcGIS 10.1

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 C/A Horizontal position accuracy: 25 meters

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Range resolution of sonar: varies with depth Raw sounding resolution: varies with depth Vertical accuracy of gridded sonar product: ~ 1% of water depth Vertical accuracy of derived bathymetry product: 2 meter range

Lineage:

Process_Step:

Process_Description:

Multiple tools in ENVI 4.8 were used to complete the following processing steps: Data conversion from digital number to radiance, correction for atmosphere and water surface reflection, masking of non-applicable values, and bathymetric derivation using variables from multiple linear regression analysis. Multiple tools in ArcGIS 10 were used for dataset integration and to extract values for the multiple linear regression analysis and subsequent error analyses. The Microsoft program Excel was used for the multiple linear regression analysis to provide original variables for depth derivation. The multivariate slope intercept formula used to derive depth was Depth=Yint+(Mcoastal)(Xcoastal)+(Mblue)(Xblue)+ (Mgreen)(Xgreen)+(Myellow)(XYellow). The product was derived, from the original image 13FEB09011102-M2AS-052760757110_04_P003. The MLR variables for Yint = 16.8896761, Mcoastal = -0.818321229######, Mblue = -1.061473284, Mgreen = 3.184051914, Myellow = -0.562316809. This derived bathymetry product (SAR_DBAll_2m) was then integrated with the multibeam sonar data, with sonar data prioritized over derived data, to create the final product (SAR_DBMB_10m). A detailed description of all processing steps and an error analysis of each derived bathymetry grid used is available upon request.

Process_Date: 20140820

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Pixel

Row_Count: 697

Column_Count: 844

Vertical_Count: 1

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: 0.999600

Longitude_of_Central_Meridian: 147

Latitude_of_Projection_Origin: 0.000000

False_Easting: 500000.000000

False_Northing: 0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: row and column

Coordinate_Representation:

Abscissa_Resolution: 10

Ordinate_Resolution: 10

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

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

Country: USA

Contact_Voice_Telephone: 808 725-5360

Contact_Electronic_Mail_Address: pibhmc@soest.hawaii.edu

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: Arc Grid

Format_Information_Content: Arc Grid can be opened directly using ArcMap or ArcCatalog.

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

ftp://ftp.soest.hawaii.edu/pibhmc/website/data/cnmi-guam/bathymetry/SAR_10m_DBMB.zip

Fees: None

Metadata_Reference_Information:

Metadata_Date: 20200329

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

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_Metadata_Link:

https://www.coris.noaa.gov/metadata/records/html/sarigan_metadata_dbmb_10m.html

CoRIS_Tracking_ID: 7242