Short Citation:
Office for Coastal Management, 2021: NOAA Office for Coastal Management (OCM) Coastal Inundation Digital Elevation Model: U.S. Virgin Islands, https://www.fisheries.noaa.gov/inport/item/48126.

Item Identification

Title: NOAA Office for Coastal Management (OCM) Coastal Inundation Digital Elevation Model: U.S. Virgin Islands
Short Name: USVI_metadata
Status: Completed
Publication Date: 2014-12
Abstract:

These data were created as part of the National Oceanic and Atmospheric Administration Office for Coastal Management's efforts to create an online

mapping viewer called the Sea Level Rise and Coastal Flooding Impacts Viewer. It depicts potential sea level rise and its associated impacts

on the nation's coastal areas. The purpose of the mapping viewer is to provide coastal managers and scientists with a preliminary look at sea

level rise (slr) and coastal flooding impacts. The viewer is a screening-level tool that uses nationally consistent data sets and analyses.

Data and maps provided can be used at several scales to help gauge trends and prioritize actions for different scenarios. The Sea Level Rise

and Coastal Flooding Impacts Viewer may be accessed at: http://www.coast.noaa.gov/slr

This metadata record describes the digital elevation model (DEM) for the U.S. Virgin Islands of St.Croix, St. John, and St. Thomas. This DEM

is a part of a series of DEMs produced for the National Oceanic and Atmospheric Administration Office for Coastal Management's Sea Level Rise and

Coastal Flooding Impacts Viewer described above. The DEMs created for this project were developed using the NOAA National Weather Service's Weather

Forecast Office (WFO) boundaries. The U.S. Virgin Islands DEM includes the best available data known to exist at the time of DEM creation, that met

project specifications for the U.S. Virgin Islands in the San Juan, PR WFO. This includes the coastlines of St. Croix, St. John, and St. Thomas.

This DEM was derived from the 2013 NOAA Topographic Lidar for the U.S. Virgin Islands. A hydro-flattened DEM created from this data was provided

by the contractor as a deliverable.

The DEM is referenced vertically to the Virgin Islands Vertical Datum (VIVD09) with vertical units of meters and horizontally to

the North American Datum of 1983 (NAD83). The resolution of the DEM is approximately 3 meters.

Purpose:

The NOAA Office for Coastal Management has developed high-resolution digital elevation models (DEMs) for use in the Office's Sea Level Rise And

Coastal Flooding Impacts internet mapping application. These DEMs serve as source datasets used to derive data to visualize the impacts of

inundation resulting from sea level rise along the coastal United States and its territories.

Notes:

10983

Supplemental Information:

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.0000001

Longitude_Resolution: 0.0000001

Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222101

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: Virgin Island Vertical Datum of 2009 (VIVD09)

Altitude_Resolution: 0.001

Altitude_Distance_Units: meters

Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords Earth Science > Land Surface > Geomorphic Landforms/Processes > Coastal Processes > Flooding
Global Change Master Directory (GCMD) Science Keywords Earth Science > Land Surface > Geomorphic Landforms/Processes > Coastal Processes > Sea Level Changes
Global Change Master Directory (GCMD) Science Keywords Earth Science > Land Surface > Topography > Terrain Elevation > Digital Elevation/Terrain Model (Dem)
ISO 19115 Topic Category elevation
None Bathymetry/Topography
None DEM
None Digital Elevation Model
None elevation
None flooding
None inundation
None lidar
None lidar
None sea level rise
None topography

Spatial Keywords

Thesaurus Keyword
None St. Croix
None St. John
None St. Thomas
None United States
None US Virgin Islands

Physical Location

Organization: Office for Coastal Management
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: None Planned
Data Presentation Form: Image (digital)
Distribution Liability:

Any conclusions drawn from the analysis of this information are not the responsibility of the Office for Coastal Management

or its partners.

Data Set Credit: Acknowledgment of the NOAA Office for Coastal Management as a data source would be appreciated in products developed from these data, and such acknowledgment as is standard for citation and legal practices for data source is expected.

Support Roles

Data Steward

CC ID: 621497
Date Effective From: 2014-12
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Distributor

CC ID: 621499
Date Effective From: 2014-12
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Metadata Contact

CC ID: 621500
Date Effective From: 2014-12
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Point of Contact

CC ID: 621498
Date Effective From: 2014-12
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 621503
W° Bound: -65.139523
E° Bound: -64.511492
N° Bound: 18.466974
S° Bound: 17.61987

Extent Group 1 / Time Frame 1

CC ID: 621502
Time Frame Type: Range
Start: 2013
End: 2014

Spatial Information

Spatial Representation

Representations Used

Grid: Yes

Grid Representation 1

CC ID: 621489
Dimension Count: 3
Cell Geometry: Area
Transformation Parameters Available?: No

Axis Dimension 1

Dimension Type: Row
Size: 31432

Axis Dimension 2

Dimension Type: Column
Size: 23301

Axis Dimension 3

Dimension Type: Vertical
Size: 1

Access Information

Security Class: Unclassified
Data Access Constraints:

None

Data Use Constraints:

The dataset is provided as is, without warranty to its performance, merchantable state, or fitness for any particular purpose. The entire

risk associated with the results and performance of this dataset is assumed by the user. This dataset should be used strictly as a

planning reference and not for navigation, permitting, or other legal purposes.

URLs

URL 1

CC ID: 621494
URL: https://coast.noaa.gov/slr
URL Type:
Online Resource

URL 2

CC ID: 621495
URL: https://coast.noaa.gov/digitalcoast/tools/slr
URL Type:
Online Resource

URL 3

CC ID: 621496
URL: https://coast.noaa.gov
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 621524
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 621523
Activity Date/Time: 2017-11-14
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

CC ID: 717537
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Data Quality

Horizontal Positional Accuracy:

The DEM is derived from the source data. Horizontal accuracy testing is not performed on the DEM. Source data assumed to

meet 1 meter horizontal accuracy.

Vertical Positional Accuracy:

The DEM is derived from the source data. Vertical accuracy is not tested on the DEM. Project specifications require all source

data used in constructing the DEM to meet FEMA Specifications for Flood Hazard Mapping.

Completeness Report:

A visual qualitative check was performed to ensure data completeness. All available data known at the time of DEM creation that meets

project specifications has been used to develop the DEM. Known data gaps may exist where coverage was incomplete.

Conceptual Consistency:

Data covers the project area which includes the islands of the US Virgin Islands of St. Croix, St. John and St. Thomas.

Elevation data was checked for anomalous elevation values outside the expected range.

Lineage

Sources

2013 NOAA Topographic Lidar: U.S. Virgin Islands (St. Croix, St. John, St.Thomas)

CC ID: 621486
Contact Name: NOAA Office for Coastal Management (OCM)
Publish Date: 2014-01-01
Extent Type: Range
Extent Start Date/Time: 2013-11-09
Extent End Date/Time: 2013-12-10
Citation URL: https://coast.noaa.gov/dataviewer/index.html?action=advsearch&qType=in&qFld=ID&qVal=3669
Source Contribution:

This lidar data set was used to create the USVI DEM. | Type of Source Media: online digital data

Process Steps

Process Step 1

CC ID: 621487
Description:

1. Contractor developed hydro-breaklined DEMs in img format were created from the 2013 NOAA Topographic Lidar for the U.S. Virgin Islands data set.

These DEMs were at a 1m cell size, referenced to the Virgin Islands Vertical Datum (VIVD09), and in vertical units of meters.

2. The DEMs were reviewed in Global Mapper and areas that should have been hydro-flattened were fixed.

3. All DEMs for the entire project area were loaded into Global Mapper for a final review. The constituent DEMs were then checked to

ensure complete coverage within the project area. They were then mosaiced together, resampled to 3 meters

and reprojected to the NAD83 geographic coordinate system.

Process Date/Time: 2014-01-01 00:00:00

Catalog Details

Catalog Item ID: 48126
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-14 14:15+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2019-07-02 15:17+0000
Metadata Record Published: 2018-02-08
Owner Org: OCM
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2019-02-09