Short Citation:
Office for Coastal Management, 2021: NOAA Office for Coastal Management Coastal Digital Elevation Model: Lake Ontario, https://www.fisheries.noaa.gov/inport/item/48114.

Item Identification

Title: NOAA Office for Coastal Management Coastal Digital Elevation Model: Lake Ontario
Short Name: Ontario_metadata
Status: Completed
Publication Date: 2017-07
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 NOAA Lake Level Viewer. It depicts potential lake level rise and fall 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 lake level change, coastal flooding impacts, and exposed lakeshore. 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 NOAA Lake Level Viewer may be accessed at: https://coast.noaa.gov/llv.

This metadata record describes the Lake Ontario digital elevation model (DEM), which is a part of a series of DEMs produced for the National Oceanic and Atmospheric Administration Office for Coastal Management's Lake Level Viewer described above. This DEM includes the best available lidar and US Army Corps of Engineer dredge survey data known to exist at the time of DEM creation that met project specifications. This DEM includes data for Cayuga, Jefferson, Monroe, Niagara, Orleans, Oswego, and Wayne Counties in New York.

The DEM was produced from the following lidar data sets:

1. 2011 USACE NCMP Topobathy Lidar: MI/NY Great Lakes

2. 2007 USACE NCMP Topobathy Lidar: Lake Superior (Apostle Islands) and Lake Ontario (NY, WI)

3. 2001 USACE LRE Topobathy Lidar: Lake Ontario (NY)

4. 2000 Cayuga County, New York Lidar

The DEM was produced from the following sonar data sets:

5. 2015 USACE Buffalo District, Irondequoit Bay Harbor, NY

6. 2015 USACE Buffalo District, Rochester Harbor, NY

7. 2014 USACE Buffalo District, Point Breeze, NY, Oak Orchard Harbor

8. 2014 USACE Buffalo District, Oswego Harbor, NY

The DEM is referenced vertically to the North American Vertical Datum of 1988 (NAVD88) 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 Lake Level Viewer internet mapping application. These DEMs serve as source datasets used to derive data to visualize the impacts of inundation and shore exposure resulting from lake level change along the coastal United States in the Great Lakes.

Notes:

10971

Supplemental Information:

Source data and their associated metadata are available at the following URLs:

1. 2011 USACE NCMP Topobathy Lidar: MI/NY Great Lakes

Metadata: https://coast.noaa.gov/htdata/lidar1_z/geoid12a/data/1407/usace2011_greatlakes_metadata.html

Data Download: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=1407

2. 2007 USACE NCMP Topobathy Lidar: Lake Superior (Apostle Islands) and Lake Ontario (NY, WI)

Metadata: https://coast.noaa.gov/htdata/lidar1_z/geoid12a/data/114/2007_GL_Topobathy_metadata.html

Data Download: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=114

3. 2001 USACE LRE Topobathy Lidar: Lake Ontario (NY)

Metadata: https://coast.noaa.gov/htdata/lidar1_z/geoid12a/data/4700/ny2001_usace_loslrs_ontario_m4700_metadata.html

Data Download: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=4700

4. 2000 Cayuga County, New York Lidar

Metadata: https://coast.noaa.gov/htdata/lidar1_z/geoid12a/data/106/2000_NY_Cayuga_metadata.html

Data Download: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=106

5. 2015 USACE Buffalo District, Irondequoit Bay Harbor, NY

Metadata: http://navigation.usace.army.mil/Survey/Hydro

Data Download: http://navigation.usace.army.mil/Survey/Hydro

6. 2015 USACE Buffalo District, Rochester Harbor, NY

Metadata: http://navigation.usace.army.mil/Survey/Hydro

Data Download: http://navigation.usace.army.mil/Survey/Hydro

7. 2014 USACE Buffalo District, Point Breeze, NY, Oak Orchard Harbor

Metadata: http://navigation.usace.army.mil/Survey/Hydro

Data Download: http://navigation.usace.army.mil/Survey/Hydro

8. 2014 USACE Buffalo District, Oswego Harbor, NY

Metadata: http://navigation.usace.army.mil/Survey/Hydro

Data Download: http://navigation.usace.army.mil/Survey/Hydro

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: NAD 1983 Great Lakes and St Lawrence Albers

Albers_Conical_Equal_Area:

Standard_Parallel: 42.122774

Standard_Parallel: 49.01518

Longitude_of_Central_Meridian: -83.248627

Latitude_of_Projection_Origin: 45.568977

False_Easting: 1000000.0

False_Northing: 1000000.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000000003398570314061545

Ordinate_Resolution: 0.000000003398570314061545

Planar_Distance_Units: meter

Geodetic_Model:

Horizontal_Datum_Name: D North American 1983

Ellipsoid_Name: GRS 1980

Semi-major_Axis: 6378137.0

Denominator_of_Flattening_Ratio: 298.257222101

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: North American Vertical Datum of 1988

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 sonar
None topography
None water levels

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords Continent > North America > United States Of America > Great Lakes
None Cayuga County
None Great Lakes
None Jefferson County
None Lake Ontario
None Monroe County
None New York
None Niagara County
None Orleans County
None Oswego County
None US
None Wayne County

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 NOAA 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: 620964
Date Effective From: 2017-07
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: 620966
Date Effective From: 2017-07
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: 620967
Date Effective From: 2017-07
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: 620965
Date Effective From: 2017-07
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: 620970
W° Bound: -79.087059
E° Bound: -76.104024
N° Bound: 44.111212
S° Bound: 43.111925

Extent Group 1 / Time Frame 1

CC ID: 620969
Time Frame Type: Range
Start: 2000
End: 2015

Spatial Information

Spatial Representation

Representations Used

Grid: Yes

Grid Representation 1

CC ID: 620956
Dimension Count: 3
Cell Geometry: Area
Transformation Parameters Available?: No

Axis Dimension 1

Dimension Type: Row
Size: 31653

Axis Dimension 2

Dimension Type: Column
Size: 78142

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: 620961
URL: https://coast.noaa.gov/llv
URL Type:
Online Resource

URL 2

CC ID: 620962
URL: https://coast.noaa.gov/digitalcoast/tools/llv
URL Type:
Online Resource

URL 3

CC ID: 620963
URL: https://coast.noaa.gov
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 620998
Activity Date/Time: 2017-07-07
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 620997
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: 717475
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 lidar and sonar data. Horizontal accuracy testing is not performed on the DEM. Lidar source data assumed to meet 1 meter horizontal accuracy.

Vertical Positional Accuracy:

The DEM is derived from the source lidar and sonar data. Vertical accuracy is not tested on the DEM. Project specifications require all source lidar 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 lidar and sonar 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 lidar coverage was incomplete.

Conceptual Consistency:

Data covers the tile scheme provided for the project area. Elevation data checked for anomalous elevation values outside expected range.

Lineage

Process Steps

Process Step 1

CC ID: 620953
Description:

The source elevation datasets listed above were identified, downloaded, edited, and finalized.

Process Date/Time: 2017-01-01 00:00:00

Process Step 2

CC ID: 620954
Description:

Source elevation data and their associated hydro-breaklines, where available, were downloaded. Data were then reviewed and edited to meet the project's requirements. The major requirements were delineating data extent for topography and bathymetry; removing areas less than 0.01 square kilometers; creating separate terrain datasets for topography and bathymetry; converting to rasters; and mosaicing the topography and bathymetry together for the final product. NOAA's VDatum datum conversion tool was used to convert geoids.

Process Date/Time: 2017-01-01 00:00:00

Catalog Details

Catalog Item ID: 48114
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