GeoTIFF of 3x3 m Bathymetry for Buck Island, St. Croix, 2011, UTM 20N NAD83
Data Set (DS) | National Centers for Coastal Ocean Science (NCCOS)GUID: gov.noaa.nmfs.inport:38944 | Updated: May 30, 2023 | Published / External
Summary
Short Citation
National Centers for Coastal Ocean Science, 2024: GeoTIFF of 3x3 m Bathymetry for Buck Island, St. Croix, 2011, UTM 20N NAD83, https://www.fisheries.noaa.gov/inport/item/38944.
Full Citation Examples
This image represents a LiDAR (Light Detection & Ranging) 3x3 meter resolution bathymetric surface for an area including and surrounding Buck Island Reef National Monument (BUIS), St. Croix in the U.S. Virgin Islands (USVI). The image's horizontal coordinate system is NAD83 UTM 20 North, and depth values are in meters referenced to Mean Lower Low Water (MLLW) heights. Fugro LADS, in collaboration with NOAA's NOS/NCCOS/CCMA Biogeography Branch, the University of New Hampshire and the National Park Service, acquired bathymetry, relative seafloor reflectivity and hyperspectral imagery in St. Croix from 2/21 to 2/22/2011. Hyperspectral data were acquired using a Hyspex VNIR-1600 sensor. Bathymetry and reflectivity data were acquired using a LADS (Laser Airborne Depth Sounder) Mark II Airborne System from altitudes between 1,200 and 2,200ft at ground speeds between 140 and 175 knots. The 900 Hertz Nd: YAG (neodymium-doped yttrium aluminum garnet) laser (1064 nm) acquired 3x3 meter spot spacing and 200% seabed coverage. In total, 35.9 square kilometers of LiDAR were collected between 0 m and 49 m in depth. Environmental factors such as wind strength and direction, cloud cover, water clarity and depth influenced the area of data acquisition on a daily basis. The data was processed using the LADS Mark II Ground System and data visualization, quality control and final products were created using CARIS HIPS and SIPS and CARIS BASE Editor. All users should individually evaluate the suitability of this data according to their own needs and standards.
Distribution Information
No Distributions available.
Access Constraints:Please cite any use of this data.
Note: NOT TO BE USED FOR NAVIGATION. These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data have been used by NOAA, no warranty, expressed or implied, is made by NOAA as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by NOAA in the use of these data or related materials.
Controlled Theme Keywords
elevation, environment, geoscientificInformation, imageryBaseMapsEarthCover, oceans
Child Items
No Child Items for this record.
Contact Information
Point of Contact
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Metadata Contact
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Extents
-64.672635° W,
-64.552328° E,
17.812313° N,
17.762559° S
2011-02-21 - 2011-02-22
Item Identification
Title: | GeoTIFF of 3x3 m Bathymetry for Buck Island, St. Croix, 2011, UTM 20N NAD83 |
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Short Name: | NPS11_STX_BUIS_LiDAR_Bathy_3m_Metadata |
Status: | Completed |
Publication Date: | 2011 |
Abstract: |
This image represents a LiDAR (Light Detection & Ranging) 3x3 meter resolution bathymetric surface for an area including and surrounding Buck Island Reef National Monument (BUIS), St. Croix in the U.S. Virgin Islands (USVI). The image's horizontal coordinate system is NAD83 UTM 20 North, and depth values are in meters referenced to Mean Lower Low Water (MLLW) heights. Fugro LADS, in collaboration with NOAA's NOS/NCCOS/CCMA Biogeography Branch, the University of New Hampshire and the National Park Service, acquired bathymetry, relative seafloor reflectivity and hyperspectral imagery in St. Croix from 2/21 to 2/22/2011. Hyperspectral data were acquired using a Hyspex VNIR-1600 sensor. Bathymetry and reflectivity data were acquired using a LADS (Laser Airborne Depth Sounder) Mark II Airborne System from altitudes between 1,200 and 2,200ft at ground speeds between 140 and 175 knots. The 900 Hertz Nd: YAG (neodymium-doped yttrium aluminum garnet) laser (1064 nm) acquired 3x3 meter spot spacing and 200% seabed coverage. In total, 35.9 square kilometers of LiDAR were collected between 0 m and 49 m in depth. Environmental factors such as wind strength and direction, cloud cover, water clarity and depth influenced the area of data acquisition on a daily basis. The data was processed using the LADS Mark II Ground System and data visualization, quality control and final products were created using CARIS HIPS and SIPS and CARIS BASE Editor. All users should individually evaluate the suitability of this data according to their own needs and standards. |
Purpose: |
This LiDAR collection is an important effort in an ongoing NOAA scientific research mission in the US Caribbean to characterize nearshore to deep water coral reef habitats at depths down to 1,000 meters. The mission purpose is to better understand the resources within the surveyed reef habitats, and ultimately develop species utilization models linking physical habitats with biological information. The acquired bathymetry, relative seafloor reflectivity, and hyperspectral imagery will be used internally to characterize sea floor topography and to create benthic habitat maps, helping NOAA meet its mapping commitment to the US Coral Reef Task Force. The resulting publicly-distributed data is also a contribution to the greater scientific community interested in the USVI seafloor. |
Notes: |
797 |
Keywords
Theme Keywords
Thesaurus | Keyword |
---|---|
ISO 19115 Topic Category |
elevation
|
ISO 19115 Topic Category |
environment
|
ISO 19115 Topic Category |
geoscientificInformation
|
ISO 19115 Topic Category |
imageryBaseMapsEarthCover
|
ISO 19115 Topic Category |
oceans
|
UNCONTROLLED | |
CoRIS Discovery Thesaurus | Geographic Information > Bathymetry |
CoRIS Discovery Thesaurus | Geographic Information > LiDAR |
CoRIS Theme Thesaurus | EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat > Description |
CoRIS Theme Thesaurus | EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry |
NOS Data Explorer Topic Category | Bathymetry/Topography |
None | Bathymetry |
None | Benthic |
None | Biogeography |
None | Buck Island Reef National Monument |
None | BUIS |
None | Coral |
None | Depth |
None | GIS |
None | Habitat |
None | Integrated Ocean and Coastal Mapping |
None | IOCM |
None | LADS Mark II |
None | Lidar |
None | NOAA |
None | NPS |
None | Reef |
None | Seafloor |
None | St. Croix |
None | US Virgin Islands |
None | USVI |
Temporal Keywords
Thesaurus | Keyword |
---|---|
UNCONTROLLED | |
None | 2011 |
Spatial Keywords
Thesaurus | Keyword |
---|---|
UNCONTROLLED | |
placekt: CoRIS Place Thesaurus | COUNTRY/TERRITORY > United States of America > U. S. Virgin Islands > St. Croix > Buck Island (17N064W0006) |
placekt: CoRIS Place Thesaurus | COUNTRY/TERRITORY > United States of America > U. S. Virgin Islands > U. S. Virgin Islands > U. S. Virgin Islands (17N064W0000) |
placekt: CoRIS Place Thesaurus | OCEAN BASIN > Atlantic Ocean > Caribbean Sea > Virgin Islands > Lesser Antilles > U. S. Virgin Islands (17N064W0000) |
placekt: CoRIS Place Thesaurus | OCEAN BASIN > Atlantic Ocean > Caribbean Sea > Virgin Islands > St. Croix > Buck Island Reef (17N064W0001) |
Physical Location
Organization: | National Centers for Coastal Ocean Science |
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City: | Silver Spring |
State/Province: | MD |
Data Set Information
Data Set Scope Code: | Data Set |
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Maintenance Frequency: | As Needed |
Data Presentation Form: | remote-sensing image |
Distribution Liability: |
These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data have been used by NOAA, no warranty, expressed or implied, is made by NOAA as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by NOAA in the use of these data or related materials. |
Support Roles
Data Steward
Date Effective From: | 2011 |
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Date Effective To: | |
Contact (Position): | NCCOS Scientific Data Coordinator |
Email Address: | NCCOS.data@noaa.gov |
Distributor
Date Effective From: | 2011 |
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Date Effective To: | |
Contact (Position): | NCCOS Scientific Data Coordinator |
Email Address: | NCCOS.data@noaa.gov |
Metadata Contact
Date Effective From: | 2011 |
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Date Effective To: | |
Contact (Position): | NCCOS Scientific Data Coordinator |
Email Address: | NCCOS.data@noaa.gov |
Point of Contact
Date Effective From: | 2011 |
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Date Effective To: | |
Contact (Position): | NCCOS Scientific Data Coordinator |
Email Address: | NCCOS.data@noaa.gov |
Principal Investigator
Date Effective From: | 2011 |
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Date Effective To: | |
Contact (Person): | Battista, Tim |
Email Address: | tim.battista@noaa.gov |
Extents
Currentness Reference: | Ground Condition |
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Extent Group 1
Extent Group 1 / Geographic Area 1
W° Bound: | -64.672635 | |
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E° Bound: | -64.552328 | |
N° Bound: | 17.812313 | |
S° Bound: | 17.762559 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
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Start: | 2011-02-21 |
End: | 2011-02-22 |
Spatial Information
Spatial Representation
Representations Used
Grid: | Yes |
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Grid Representation 1
Dimension Count: | 3 | ||||
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Cell Geometry: | Point | ||||
Transformation Parameters Available?: | No | ||||
Axis Dimension 1 |
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Axis Dimension 2 |
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Axis Dimension 3 |
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Access Information
Security Class: | Unclassified |
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Data Access Constraints: |
Please cite any use of this data. |
Data Use Constraints: |
Note: NOT TO BE USED FOR NAVIGATION. These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data have been used by NOAA, no warranty, expressed or implied, is made by NOAA as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by NOAA in the use of these data or related materials. |
URLs
URL 1
URL: | http://coastalscience.noaa.gov/projects/detail?key=263 |
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URL Type: |
Online Resource
|
Activity Log
Activity Log 1
Activity Date/Time: | 2015-09-22 |
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Description: |
Date that the source FGDC record was last modified. |
Activity Log 2
Activity Date/Time: | 2017-04-05 |
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Description: |
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. |
Activity Log 3
Activity Date/Time: | 2017-09-13 |
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Description: |
Partial upload of Spatial Info section only. |
Activity Log 4
Activity Date/Time: | 2017-11-01 |
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Description: |
Replaced entire Lineage section to populate new Source Contribution field. |
Activity Log 5
Activity Date/Time: | 2018-02-08 |
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Description: |
Partial upload of Positional Accuracy fields only. |
Technical Environment
Description: |
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.4000 |
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Data Quality
Horizontal Positional Accuracy: |
None. |
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Vertical Positional Accuracy: |
None. |
Completeness Report: |
This GeoTIFF is sourced from a gridded dataset. The original full-resolution Lidar data was used to create a downsampled uniform-resolution surface in CARIS. |
Conceptual Consistency: |
All users should independently analyze the dataset according to their own needs and standards to determine data usability. |
Lineage
Sources
BUIS_Bathy_3m.tif
Contact Name: | Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch |
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Publish Date: | 2011-01-01 |
Extent Type: | Range |
Extent Start Date/Time: | 2011-02 |
Extent End Date/Time: | 2011-03 |
Source Contribution: |
Downsampled GeoTIFF raster containing depth values in meters (referenced to MLLW). Sourced from CARIS BASE surface. | Source Geospatial Form: raster digital data | Type of Source Media: external hard drive |
CARIS BASE Surface
Contact Name: | Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch |
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Extent Type: | Range |
Extent Start Date/Time: | 2011-02 |
Extent End Date/Time: | 2011-03 |
Source Contribution: |
Downsampled CARIS BASE (Bathymetry Associated with Statistical Error) grid with best depth layer. Sourced from processed HDCS data. | Source Geospatial Form: raster digital data | Type of Source Media: external hard drive |
Processed Lidar Data
Contact Name: | Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch |
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Extent Type: | Range |
Extent Start Date/Time: | 2011-02 |
Extent End Date/Time: | 2011-03 |
Source Contribution: |
Processed, cleaned, and corrected full resolution dataset. Sourced from raw LADS data. | Source Geospatial Form: digital data | Type of Source Media: external hard drive |
Raw Lidar Data
Contact Name: | Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch |
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Extent Type: | Range |
Extent Start Date/Time: | 2011-02-21 |
Extent End Date/Time: | 2011-02-22 |
Source Contribution: |
Original raw full resolution dataset. | Source Geospatial Form: digital data | Type of Source Media: external hard drive |
Process Steps
Process Step 1
Description: |
James Guilford and Scott Ramsay from Fugro LADS lead this mapping effort. Hyperspectral data were acquired using a Hyspex VNIR-1600 sensor. Bathymetry and reflectivity data were acquired using a LADS (Laser Airborne Depth Sounder) Mark II Airborne System from altitudes between 1,200 and 2,200ft at ground speeds between 140 and 175 knots. The 900 Hertz Nd: YAG (neodymium-doped yttrium aluminum garnet) laser (1064 nm) acquired 3x3 meter spot spacing and 200% seabed coverage. Green laser pulses are scanned beneath the aircraft in a rectilinear pattern. The pulses are reflected from the land, sea surface, within the water column and from the seabed. The height of the aircraft is determined by the infrared laser return, which is supplemented by the inertial height from the Attitude and Heading Reference System and GPS height. Real-time positioning is obtained by an Ashtech GG24 GPS receiver combined with Wide Area DGPS (Differential Global Positioning System) provided by the Fugro Omnistar to provide a differentially corrected position. Ashtech Z12 GPS receivers are also provided as part of the Airborne System and Ground Systems to log KGPS (Kinetic Global Positioning System) data on the aircraft and at a locally established GPS (Global Positioning System) base station. | Source Produced: Raw Lidar Data |
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Process Date/Time: | 2011-01-01 00:00:00 |
Source: | Raw Lidar Data |
Process Step 2
Description: |
The reflectivity of an LADS pulse is a measure of the amount of energy reflected from the seabed for each individual laser pulse at the wavelength of the laser, 532nm (green/blue). The basic difference between processing an ALB waveform for depth and for reflectivity is that depth processing focuses on the leading edge of the return waveform, whereas reflectivity requires integration of the entire return pulse. Each sounding is assessed for suitability. Dry soundings and soundings in very shallow water are not processed for reflectivity. Each sounding is normalized for the electronic gain applied to the photo multiplier tube to which the received laser energy is optically routed. The gain-normalized return waveform is then analyzed to determine energy returning from the seabed. Integration of the waveform from the seabed will produce a numerical value of reflectivity. To ensure that this value accurately and meaningfully describes variation in seabed reflectivity several parameters must be taken into consideration. Energy is lost from the pulses transmitted from the aircraft. These losses include the air/water interface and those through the water column, and any system specific losses such as optical filtering and receiver field of view. Reflectivity value, calculated for each pulse, is the ratio between the received energy normalized for the losses described and the transmitted energy. Once a relative reflectivity value has been calculated, further statistical cleaning to remove outliers is completed. Because the dataset is of relative reflectivity rather than an absolute value for each point, the entire dataset is scaled to ensure the full dynamic range is used over the dataset. This scaling is applied over an entire survey area to ensure dataset consistency (Collins et al. 2007). Collins et al. 2007 is available online here: http://www.fugrolads.com/datasheets/Hydro_Intl_LiDAR_Seabed_Classification.pdf | Source Produced: Processed Lidar Data |
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Process Date/Time: | 2011-01-01 00:00:00 |
Source: | Raw Lidar Data |
Catalog Details
Catalog Item ID: | 38944 |
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GUID: | gov.noaa.nmfs.inport:38944 |
Metadata Record Created By: | Tyler Christensen |
Metadata Record Created: | 2017-04-05 12:50+0000 |
Metadata Record Last Modified By: | SysAdmin InPortAdmin |
Metadata Record Last Modified: | 2023-05-30 18:10+0000 |
Metadata Record Published: | 2018-02-08 |
Owner Org: | NCCOS |
Metadata Publication Status: | Published Externally |
Do Not Publish?: | N |
Metadata Last Review Date: | 2018-02-08 |
Metadata Review Frequency: | 1 Year |
Metadata Next Review Date: | 2019-02-08 |