Mosaic of gridded multibeam bathymetry, LiDAR bathymetry and bathymetry derived from multispectral IKONOS satellite imagery of Saipan Island, Commonwealth of Northern Maraina Islands, USA
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Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator:
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Gaia Geo-Analytical in collaboration with
Davey Jones Locker GIS Laboratory, Oregon State Universtiy for
Coral Reef Ecosystem Division, NOAA Pacific Islands Fisheries
Science Center, Pacific Islands Benthic Habitat Mapping Center
- Publication_Date: 20110729
- Title:
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Mosaic of gridded multibeam bathymetry, LiDAR bathymetry and
bathymetry derived from multispectral IKONOS satellite imagery of
Saipan Island, Commonwealth of Northern Maraina Islands, USA
- Geospatial_Data_Presentation_Form: raster digital data
- Online_Linkage:
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http://www.soest.hawaii.edu/pibhmc/cms/data-by-location/cnmi-guam/saipan-island-marpi-bank/saipan-island-marpi-bank-bathymetry/
- Description:
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- Abstract:
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Gridded multibeam bathymetry is integrated with gridded LiDAR
bathymetry and bathymetry derived from multispectral IKONOS satellite data.
Gridded (5 m cell size) multibeam bathymetry collected aboard NOAA Ship
Hiialaka'i and R/V AHI. Lidar bathymetry were collected by the Naval
Oceanographic Office. Bathymetry values shallower than 25 m were derived by
gauging the reletive attenuation of blue and green spectral radiance
as a function of depth. A multiple linear regression analysis of
linearized blue and green band spectral values against depth determined
the variables of y-intercept, blue slope and green slope values.
Variables then used in multivariate slope intercept formula to derive
depth. Variables were adjusted to improve the statistical accuracy and
spatial coverage of the final derived bathymetry product. Digital image
processing to derive depths conducted with the ENVI 4.5 software program
while data editing and integration was performed using ArcGIS 9.3. This
dataset is for the shelf environment of Saipan Island, Commonwealth of
Northern Mariana Islands, USA
- Purpose:
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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 150m)
benthic habitats for organisms that inhabit coral reef ecosystems.
- Supplemental_Information:
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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 and operated by the NOAA
Pacific Islands Fisheries Science Center in Honolulu, HI. The
metadata for the bathymetry is documented in the product metadata,
saipan_5m.txt
http://www.soest.hawaii.edu/pibhmc/pibhmc_cnmi_sai.htm
Lidar data were provided by the Naval Oceanographic Office, and were obtained
using a SHOALS airborne system during January-March 2001.
Original IKONOS imagery was purchased to support the Pacific Islands
Geographic Information System (GIS) project and National Ocean Service's
(NOS) coral mapping activities. Orthographically corrected IKONOS Imagery
was provided by NOAA's National Centers for Coastal Ocean Science, Center
for Coastal Monitoring and Assessment. The metadata for this IKONOS
imagery is documented in the original product metadata, po_108479_metadata.txt,
po_113126_metadata.txt and po_83075_metadata.txt.
(http://www.soest.hawaii.edu/pibhmc/)
- Time_Period_of_Content:
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- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date: 20010309
- Ending_Date: 20070608
- Currentness_Reference: ground condition
- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: As needed
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: 145.548484
- East_Bounding_Coordinate: 145.853369
- North_Bounding_Coordinate: 15.313391
- South_Bounding_Coordinate: 15.065562
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: NCEI Geoportal Filter
- Theme_Keyword: CoRIS_Metadata
- Theme:
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- Theme_Keyword_Thesaurus: CRCP Project
- Theme_Keyword:
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Benthic Habitat Mapping and Characterization - Commonwealth of the Northern Mariana Islands and Guam
- Theme_Keyword: 1398
- Theme:
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- Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
- Theme_Keyword:
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EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry
- Theme_Keyword:
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EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Water Depth
- Theme_Keyword:
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EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Remote Sensing > Satellite (digital scans) > IKONOS
- Theme:
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- Theme_Keyword_Thesaurus: None
- Theme_Keyword: Slope
- Theme_Keyword: Bathymetry
- Theme_Keyword: Multibeam sonar
- Theme:
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- Theme_Keyword_Thesaurus: ISO 19115 Topic Category
- Theme_Keyword: elevation
- Theme_Keyword: 006
- Theme:
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- Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus
- Theme_Keyword: Geographic Information > Bathymetry
- Place:
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- Place_Keyword_Thesaurus: None
- Place_Keyword: Saipan Island
- Place_Keyword: Commonwealth of Northern Mariana Islands
- Place_Keyword: United States of America
- Place:
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- Place_Keyword_Thesaurus: CoRIS Place Thesaurus
- Place_Keyword:
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OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Saipan Island > Saipan Island (15N145E0002)
- Place_Keyword:
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COUNTRY/TERRITORY > Northern Mariana Islands > Saipan > Saipan Island (15N145E0002)
- Place:
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- Place_Keyword_Thesaurus: CoRIS Region
- Place_Keyword: CNMI
- Access_Constraints: None
- Use_Constraints:
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These data are not to be used for navigation purposes. Please acknowledge NOAA Pacific Islands Fisheries
Science Center (PIFSC) Coral Reef Ecosystem Division (CRED), the Joint Institute for Marine and
Atmospheric Research (JIMAR) University of Hawaii, Davey
Jones Locker GIS Laboratory Oregon State University, and the Naval Oceanographic Office (NAVO)
as the sources of this information.
- Browse_Graphic:
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- Browse_Graphic_File_Name:
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http://www.soest.hawaii.edu/pibhmc/CNMI_images/sai_bathymetry_mb&IKONOS_440.jpg
- Browse_Graphic_File_Description: Gridded Bathymetry
- Browse_Graphic_File_Type: PDF
- Data_Set_Credit:
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NOAA PIFSC CRED, PIBHMC, NAVO, Davey Jones Locker GIS Laboratory
Oregon State University
- Security_Information:
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- Security_Classification_System: Not applicable
- Security_Classification: Unclassified
- Security_Handling_Description: Not applicable
- Native_Data_Set_Environment:
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ArcGIS ASCII file or ArcGIS Grid file,
bathymetry derived from 4x4m multispectral satellite imagery (IKONOS)
using ENVI 4.5, multibeam and derived bathymetry were integrated using
ArcGIS 9.3
- Data_Quality_Information:
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- Attribute_Accuracy:
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- Attribute_Accuracy_Report:
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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:
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These data are believed to be logically
consistent though no tests were performed
- Completeness_Report: Complete
- Positional_Accuracy:
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- Horizontal_Positional_Accuracy:
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- Horizontal_Positional_Accuracy_Report:
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Horizontal positioning system: GPS C/A
Horizontal position accuracy: 25 meters
- Vertical_Positional_Accuracy:
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- Vertical_Positional_Accuracy_Report:
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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: 5 meter range
- Lineage:
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- Process_Step:
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- Process_Description:
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Multiple tools in ENVI 4.5 were used to complete the following
processing steps: Data conversion from digital number to radiance,
correction for atmosphere and water surface reflection,
linearization of spectral decay as function of depth, masking of
non-applicable values, and bathymetric derivation using variables
from multiple linear regression analysis. Multiple tools in
ArcGIS 9.3 were used for dataset integration and to extract values
for the multiple linear regression analysis and subsequent error
analyses. The statisitcs program S-Plus 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+(Mblue)(Xblue)+(Mgreen)(Xgreen). Sixteen derived
products, six from the image saipan_075_msi_000.pix (Sai07500), five from the
image saipan_126_msi_000.pix (Sai12600), four from the image saipan_479_msi_000.pix
(Sai47900) and five from the image saipan_479_msi_001.pix (Sai47901), were
integrated to expand spatial coverage.
The original MLR variables for Sai07500 were Yint=-5.1796, Mblue=-14.7510, and
Mgreen=17.0081. The product derived from these variables (Sai07500_DB) was mosaiced
with five additional products derived using increasingly reduced Y-intercept values
as follows: Yint=-6.1796 (Sai07500_DB1), Yint=-7.1796 (Sai07500_DB2), Yint=-8.1796
(Sai07500_DB3), Yint=-9.1796 (Sai07500_DB4), Yint=-10.1796 (Sai07500_DB5). This
was done to increase coverage in shallow areas. More information on this integration
process is provided in the product error analysis, availble from PIBHMC upon request.
The original MLR variables for Sai12600 were Yint=10.7316, Mblue=-13.0256, and
Mgreen=29.0495. The product derived from these variables (Sai12600_DB) was the
only product derived from this image. More information on the treatment of this
product is provided in the product error analysis, availble from PIBHMC upon request.
The original MLR variables for Sai47900 were Yint=4.2506, Mblue=-17.2381, and
Mgreen=30.5051. The product derived from these variables (Sai47900_DB) was mosaiced
with three additional products derived using increasingly reduced Y-intercept values
as follows: Yint=0.2506 (Sai47900_DB4), Yint=-3.7494 (Sai47900_DB8) and Yint=-7.7494
(Sai47900_DB12). This was done to increase coverage in shallow areas. More
information on this integration process is provided in the product error analysis,
availble from PIBHMC upon request.
The original MLR variables for Sai47901 were Yint=16.0489, Mblue=-8.1726, and
Mgreen=21.6609. The product derived from these variables (Sai47901_DB) was mosaiced with
four additional products derived using increasingly reduced Y-intercept values as follows:
Yint=12.0489 (Sai47901_DB4), Yint=8.0489 (Sai47901_DB8), Yint=4.0489 (Sai47901_DB12),
Yint=0.0489 (Sai47901_DB16). This was done to increase coverage in shallow areas. More
information on this integration process is provided in the product error analysis,
availble from PIBHMC upon request.
The derived bathymetry from each image were in turn mosaiced averaging the
the concurrent data from image Sai07500 and Sai12600 (once it was trimmed) to minimize
seams in the area of overlap. Data from this combined grid was prioritized below that
from Sai47901 and data from Sai47900 received the highest priority. Data with better
statistical accuracy was given higher "priority" so that they replaced concurrent data
with lower accuracy during the mosaic process.
This mosaiced derived bathymetry product (Sai_DBall) was then resampled to a 5 meter
grid and integrated with the multibeam sonar data and LiDAR data, with sonar data
prioritized over the LiDAR data and with the derived data given lowest priorty, to create
the final product (Sai_MB_Li_DB).
A detailed description of all processing steps is available at:
http://oregonstate.edu/~hogrefek/Cookbook/Cookbook_042108.pdf
An error analysis of each derived bathymetry grid used is available
upon request.
- Process_Date: 20090707
- Spatial_Data_Organization_Information:
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- Direct_Spatial_Reference_Method: Raster
- Raster_Object_Information:
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- Raster_Object_Type: Grid Cell
- Row_Count: 5445
- Column_Count: 6519
- Vertical_Count: 1
- Spatial_Reference_Information:
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- Horizontal_Coordinate_System_Definition:
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- Planar:
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- Grid_Coordinate_System:
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- Grid_Coordinate_System_Name: Universal Transverse Mercator
- Universal_Transverse_Mercator:
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- UTM_Zone_Number: 55
- Transverse_Mercator:
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- Scale_Factor_at_Central_Meridian: 0.999600
- Longitude_of_Central_Meridian: 147.000000
- Latitude_of_Projection_Origin: 0.000000
- False_Easting: 500000.000000
- False_Northing: 0.000000
- Planar_Coordinate_Information:
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- Planar_Coordinate_Encoding_Method: row and column
- Coordinate_Representation:
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- Abscissa_Resolution: 5.000000
- Ordinate_Resolution: 5.000000
- Planar_Distance_Units: meters
- Geodetic_Model:
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- Horizontal_Datum_Name: D_WGS_1984
- Ellipsoid_Name: WGS_1984
- Semi-major_Axis: 6378137.000000
- Denominator_of_Flattening_Ratio: 298.257224
- Distribution_Information:
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- Distributor:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization:
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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: 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_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:
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- Digital_Form:
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- Digital_Transfer_Information:
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- Format_Name: Arc Grid
- Format_Information_Content:
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Arc Grid can be opened directly using
ArcMap or ArcCatalog.
- Digital_Transfer_Option:
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- Online_Option:
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- Computer_Contact_Information:
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- Network_Address:
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- Network_Resource_Name:
-
http://www.soest.hawaii.edu/pibhmc/cms/data-by-location/cnmi-guam/saipan-island-marpi-bank/saipan-island-marpi-bank-bathymetry/
- Fees: None
- Metadata_Reference_Information:
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- Metadata_Date: 20200329
- Metadata_Review_Date: 20110906
- 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: 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_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: 20110906050456
- CoRIS_Children: None
- CoRIS_Beginning_Date: 20010309
- CoRIS_Ending_Date: 20070608
- CoRIS_Metadata_Link:
-
https://www.coris.noaa.gov/metadata/records/html/sai_mb_li_db_metadata.html
- CoRIS_Tracking_ID: 6362
Generated by mp version 2.9.48 on Tue Apr 23 11:01:42 2024