Bare Earth LiDAR DEM for a portion of the Pembina River basin in North Dakota

Data format: Raster Dataset

File or table name: e204_pe.img

Coordinate system: Universal Transverse Mercator

Theme keywords: elevation, Earth Science > Land Surface > Topography > Terrain Elevation

Abstract: Description of data and location to be completed by client. LiDAR data was collected using LSI's proprietary Helix LiDAR system - Novatel GPS and SPANS inertial unit, coupled to a Riegl Q560 digital waveform ranging laser and mounted in a Cessna 185 aircraft. LiDAR was collected at 500m AGL, and a ground speed of 230km/h. Data is in an ASCII XYZ coordinate format.

FGDC and ESRI Metadata:

Metadata elements shown with blue text are defined in the Federal Geographic Data Committee's (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Elements shown with green text are defined in the ESRI Profile of the CSDGM. Elements shown with a green asterisk (*) will be automatically updated by ArcCatalog. ArcCatalog adds hints indicating which FGDC elements are mandatory; these are shown with gray text.

Identification Information:


Citation:
Citation information:
Originators: Red River Basin Commission (RRBC)


Title:
Bare Earth LiDAR DEM for a portion of the Pembina River basin in North Dakota
*File or table name: e204_pe.img


Publication date: 2008-10
*Geospatial data presentation form: remote-sensing image


*Online linkage: \\wpgcvn1212ap10\mb_lib\elv\e20\4_\pe\e204_pe.img


Description:
Abstract:
Description of data and location to be completed by client. LiDAR data was collected using LSI's proprietary Helix LiDAR system - Novatel GPS and SPANS inertial unit, coupled to a Riegl Q560 digital waveform ranging laser and mounted in a Cessna 185 aircraft. LiDAR was collected at 500m AGL, and a ground speed of 230km/h. Data is in an ASCII XYZ coordinate format.

Purpose:
DEM's can be used as source elevation data for digital orthophotos, and, as layers in geographic information systems, for earth science analysis. DEM's can also serve as tools for volumetric analysis, for site location of towers, or for drainage basin delineation.

Supplemental information:
David Ronneberg
LiDAR Services International Inc.
PH. 403 517 3130
Fax 403 291 5390
250, 3115 12th Street NE
Calgary, Alberta
T2E 7J2
Canada

*Language of dataset: en


Time period of content:
Time period information:
Range of dates/times:
Beginning date: 20061025
Ending date: 20061028

Currentness reference:
ground condition

Status:
Progress: Complete
Maintenance and update frequency: None planned

Spatial domain:
Bounding coordinates:
*West bounding coordinate: -98.034721
*East bounding coordinate: -97.197010
*North bounding coordinate: 49.026021
*South bounding coordinate: 48.862200

Local bounding coordinates:
*Left bounding coordinate: 570783.000000
*Right bounding coordinate: 631830.000000
*Top bounding coordinate: 5430800.000000
*Bottom bounding coordinate: 5413695.000000

Altitude units: meters


Keywords:
Theme:
Theme keywords: elevation
Theme keyword thesaurus: ISO 19115 Topic Category

Theme:
Theme keywords: Earth Science > Land Surface > Topography > Terrain Elevation
Theme keyword thesaurus: GCMD

Place:
Place keywords: Pembina, Walhalla, Bathgate
Place keyword thesaurus: None

Place:
Place keywords: United States > North Dakota State
Place keyword thesaurus: none

Access constraints: None
Use constraints:
Any conclusions drawn from analysis of this information are not the responsibility of the Red River Basin Commission (RRBC), nor any of its partners.

Point of contact:
Contact information:
Contact organization primary:
Contact person: Conrad J. Wyrzykowski
Contact organization: AAFC/PFRA&E
Contact position: Geomatics Data Specialist


Contact address:
Address type: mailing and physical address
Address:
200 - 303 Main Street
City: Winnipeg
State or province: Manitoba
Postal code: R3C 3G7
Country: Canada

Contact voice telephone: 204.983.3756


Hours of service: 07:30 - 15:45



Data set credit:
This data set was developed for Red River Basin Commission by LiDAR Services International Inc.

Security information:
Security classification: Unclassified

*Native dataset format: Raster Dataset
*Native data set environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.6.1500


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Data Quality Information:


Attribute accuracy:
Attribute accuracy report:
Ground points were initially classified using an automatic classification routine. The ground surface model was edited and verified by creating a shaded relief model and identifying erroneous points and voids in the ground surface.

Logical consistency report:
Data was verified by viewing shaded relief models. Points were checked against those from adjacent flightlines to ensure positional accuracy. The intensity of the LiDAR returns was viewed and compared against adjacent data to verify horizontal positional accuracy.

Completeness report:
There are 8 small voids in the dataset. See included information for more details.

Positional accuracy:
Horizontal positional accuracy:
Horizontal positional accuracy report:
Horizontal accuracy is verified by comparison of horizontally identifiable features in the LiDAR data against similar features in another flightline of LiDAR data over the same geographic area. Horizontal accuracy is also verified against known coordinates of building roof edges at the calibration site used for that flight.

Vertical positional accuracy:
Vertical positional accuracy report:
Vertical accuracy is verified by comparison of points from the calibration flights to the conventionally surveyed buildings at the calibration site.

Lineage:
Source information:
Source citation:
Citation information:
Originators: Manitoba Conservation, Survey Services Branch


Title:
81R603


Publication date: 2006
Geospatial data presentation form: Document


Publication information:
Publication place: Winnipeg, Canada
Publisher: Agriculture and Agri-Food Canada, Conrad Wyrzykowski

Type of source media: electronic mail system
Source citation abbreviation:
None
Source contribution:
Control point used to build GPS network from which positions of kinematic GPS solution and calibration building were derived. NAD83 published coordinates are Lat: 49 00 02.51410, Long: -97 32 57.71230, Ellipsoid Height: 227.173m. NAD 83 adjusted coordinates are Lat: 49 00 02.51431, Long: -97 32 57.71289, Ellipsoid Height: 227.155m. This point was not occupied during kinematic GPS collection.

Source time period of content:
Time period information:
Single date/time:
Calendar date: 2006

Source currentness reference:
publication date

Source information:
Source citation:
Citation information:
Originators: Manitoba Conservation, Survey Services Branch


Title:
98R204


Publication date: 2006
Geospatial data presentation form: Document


Publication information:
Publication place: Winnipeg, Canada
Publisher: Agriculture and Agri-Food Canada, Conrad Wyrzykowski

Type of source media: electronic mail system
Source citation abbreviation:
None
Source contribution:
Control point used to build GPS network from which positions of kinematic GPS solution and calibration building were derived. NAD83 published coordinates are Lat: 49 00 54.23770, Long: -98 09 19.91450, Ellipsoid Height: 434.335m. NAD 83 adjusted coordinates are Lat: 49 00 54.23733, Long: -98 09 19.91326, Ellipsoid Height: 434.387m. This point was not occupied during kinematic GPS collection.

Source time period of content:
Time period information:
Range of dates/times:
Beginning date: 2006
Ending date: present

Source currentness reference:
publication date

Source information:
Source citation:
Citation information:
Originators: Manitoba Conservation, Survey Services Branch


Title:
87RL019


Publication date: 2006
Geospatial data presentation form: Document


Publication information:
Publication place: Winnipeg, Canada
Publisher: Agriculture and Agri-Food Canada, Conrad Wyrzykowski

Type of source media: electronic mail system
Source citation abbreviation:
None
Source contribution:
Control point used to build GPS network from which positions of kinematic GPS solution and calibration building were derived. NAD83 published coordinates are Lat: 49 00 02.77270, Long: -97 26 14.52050, Ellipsoid Height: 217.248m. NAD83 adjusted coordinates are Lat: 49 00 02.77281, Long: -97 26 14.52114, Ellipsoid Height: 217.264m.

Source time period of content:
Time period information:
Range of dates/times:
Beginning date: 2006
Ending date: present

Source currentness reference:
publication date

Source information:
Source citation:
Citation information:
Originators: LiDAR Services International Inc.


Title:
HASKETT


Publication date: 2006
Geospatial data presentation form: Document


Publication information:
Publication place: Calgary, Canada
Publisher: LiDAR Services International Inc., Ryan Audette

Type of source media: Paper
Source citation abbreviation:
None
Source contribution:
Control point used to build GPS network from which positions of kinematic GPS solution and calibration building were derived. HASKETT is the name given by LSI to the section corner monument located to the north-east of the town of Haskett with the marker inscription "WT-10-820N T 1 R 4 W 1993".  There were no published coordinates provided for this point. NAD83 adjusted coordinates are Lat: 49 00 54.58772, Long: -97 51 50.00723, Ellipsoid Height: 252.417m.

Source time period of content:
Time period information:
Range of dates/times:
Beginning date: 20061106
Ending date: present

Source currentness reference:
publication date

Source information:
Source citation:
Citation information:
Originators: LiDAR Services International Inc.


Title:
MORDEN1


Publication date: 2006
Geospatial data presentation form: Document


Publication information:
Publication place: Calgary, Canada
Publisher: LiDAR Services International Inc., Ryan Audette

Type of source media: Paper
Source citation abbreviation:
None
Source contribution:
Control point used to build GPS network from which positions of kinematic GPS solution and calibration building were derived. MORDEN1 is the name given by LSI to the point established at the Morden Airport, monumented with a temporary spike.  NAD83 adjusted coordinates are Lat: 49 12 29.40117, Long: -98 03 16.85126, Ellipsoid Height: 265.544m.

Source time period of content:
Time period information:
Range of dates/times:
Beginning date: 20061106
Ending date: present

Source currentness reference:
publication date

Process step:
Process description:
GPS static network was processed and adjusted, and kinematic GPS data was processed using coordinates obtained from the static network adjustment. Kinematic GPS and inertial information were combined to create the final position and attitude trajectory. The position and attitude trajectory was combined with data from the scanning laser to produce a raw XYZ point cloud.

Process date: 20061106


Process contact:
Contact information:
Contact organization primary:
Contact person: Ryan Audette
Contact organization: LiDAR Services International Inc.

Contact address:
Address type: Mailing and physical
Address:
250, 3115 12th Street NE
City: Calgary
State or province: Alberta
Postal code: T2E 7J2
Country: Canada

Contact voice telephone: 403 517 3130
Contact facsimile telephone: 403 291 5390


Process step:
Process description:
Overlapping flight lines were compared at the calibration site and within the project area to determine the boresight corrections required to remove systematic errors. Raw point clouds were generated using the attitude information and scanning laser ranges.

Process date: 20061211


Process contact:
Contact information:
Contact organization primary:
Contact person: Ryan Audette
Contact organization: LiDAR Services International Inc.

Contact address:
Address type: Mailing and physical
Address:
250, 3115 12th Street NE
City: Calgary
State or province: Alberta
Postal code: T2E 7J2
Country: Canada

Contact voice telephone: 403 517 3130
Contact facsimile telephone: 403 291 5390


Process step:
Process description:
Raw XYZ point clouds were combined and divided into 1km x 1km tiles. Redundant data between overlapping flightlines was removed.

Process date: 20061211


Process contact:
Contact information:
Contact organization primary:
Contact person: Ryan Audette
Contact organization: LiDAR Services International Inc.

Contact address:
Address type: mailing and physical address
Address:
#250, 3115 12th Street NE
City: Calgary
State or province: Alberta
Postal code: T2E 7J2
Country: Canada

Contact voice telephone: 403 517 3130
Contact facsimile telephone: 403 291 5390


Process step:
Process description:
An automatic ground classification routine was run on the LiDAR data using TerraScan, and the results were verified by viewing a shaded relief model. Points that existed above ground were classified to vegetation and then buildings were classified manually from the vegetation points using the shaded relief model to identify them. Points that could positively be identified as non-ground features (farm equipment in the middle of a field, vehicles on a road, transmission structures and telephone poles were classified to non-ground.

Process date: 20070222


Process contact:
Contact information:
Contact organization primary:
Contact person: David Ronneberg
Contact organization: LiDAR Services International Inc.

Contact address:
Address type: Mailing and physical
Address:
250, 3115 12th Street NE
City: Calgary
State or province: Alberta
Postal code: T2E 7J2
Country: Canada

Contact voice telephone: 403 517 3130
Contact facsimile telephone: 403 291 5390


Process step:
Process description:
LiDAR data was adjusted from ellipsoid to orthometric elevation using the CGVD28 height model.

Process date: 20070223


Process contact:
Contact information:
Contact organization primary:
Contact person: David Ronneberg
Contact organization: LiDAR Services International Inc.

Contact address:
Address type: Mailing and physical
Address:
#250, 3115 12th Street NE
City: Calgary
State or province: Alberta
Postal code: T2E 7J2
Country: Canada

Contact voice telephone: 403 517 3130
Contact facsimile telephone: 403 291 5390


Process step:
Process description:
A gridded ASCII XYZ file with a horizontal spacing of 1m was created. Elevations were derived from triangle facets in the TIN model (built using ground points only) at the centre of the grid cell.

Process date: 20070226


Process contact:
Contact information:
Contact organization primary:
Contact person: David Ronneberg
Contact organization: LiDAR Services International Inc.

Contact address:
Address type: Mailing and physical
Address:
#250, 3115 12th Street NE
City: Calgary
State or province: Alberta
Postal code: T2E 7J2
Country: Canada

Contact voice telephone: 403 517 3130
Contact facsimile telephone: 403 291 5390


Process step:
Process description:
A surface was created from the ground, vegetation, building, and non-ground points in TerraScan, and a gridded ASCII XYZ file with a horizontal spacing of 1m was created. Elevations were derived from the highest point elevation within the grid cell.

Process date: 20070226


Process contact:
Contact information:
Contact organization primary:
Contact person: David Ronneberg
Contact organization: LiDAR Services International Inc.

Contact address:
Address type: Mailing and physical
Address:
#250, 3115 12th Street NE
City: Calgary
State or province: Alberta
Postal code: T2E 7J2
Country: Canada

Contact voice telephone: 403 517 3130
Contact facsimile telephone: 403 291 5390


Process step:
Process description:
The ASCII XYZ (bare earth) grid was imported to ArcGIS 9.1. The grids were mosaicked together, and then a hillshade was produced from the grids (Azimuth:270, Elevation:55, No Shadows, Z-scale:1.0). The hillshades were produced in 5km x 5km tiles.

Process date: 20070305


Process contact:
Contact information:
Contact organization primary:
Contact person: David Ronneberg
Contact organization: LiDAR Services International Inc.

Contact address:
Address type: mailing and physical address
Address:
#250, 3115 12th Street NE
City: Calgary
State or province: Alberta
Postal code: T2E 7J2
Country: Canada

Contact voice telephone: 403 517 3130
Contact facsimile telephone: 403 291 5390


Process step:
Process description:
Tiles were mosaiced together into two blocks, One block containing the western half of the coverage area and the other block the eastern half. This was done so that it could be mosaiced as a ArcInfo GRID. There are limiting factors when creating these grids such as number of files that can be mosaiced at one time and the size of the output file. Once the blocks were created they were exported to Imagine files.

Process software and version: ArcInfo Workstation 9.2 HP-UX 11i
Process date: 200810


Source used citation abbreviation:
None


Process contact:
Contact information:
Contact organization primary:
Contact person: Conrad J. Wyrzykowski
Contact organization: AAFC/PFRA&E/NLWIS
Contact position: Geomatics Data Specialist


Contact voice telephone: 204.983.3756


Process step:
Process description:
In ERDAS Imagine recalculated the Statistics on the images with the skip factor set to 1. Assigned a projectio0n of NAD83 Zone 14N to each file. Mosaiced the two blocks into one. Recalculated the Statistics with the skip factor set to 1.

Process software and version: ERDAS Imagine 9.2 XP
Process date: 200810


Process contact:
Contact information:
Contact organization primary:
Contact organization: AAFC/PFRA&E/NLWIS
Contact position: Geomatics Data Specialist


Contact voice telephone: 204.983.3756


Process step:
Process description:
Metadata imported.

Source used citation abbreviation:
L:\elv\e20\4_\pe\es24_wspem.img.xml


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Spatial Data Organization Information:


*Direct spatial reference method: Raster


Raster object information:
*Image format:
Image type: Light Detection and Ranging
*Number of bands: 1


*Row count: 17105
*Column count: 61047
*Vertical count: 1


*Cell size X direction: 1.000000
Cell size X units: meters
*Cell size Y direction: 1.000000
Cell size Y units: meters


*Bits per pixel: 32
Background nodata value: 0
*Pyramid layers: TRUE
*Image colormap: FALSE
*Compression type: None


*Raster object type: Pixel
*Raster display type: pixel RGB
*Raster origin: Upper Left


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Spatial Reference Information:


Horizontal coordinate system definition:
Coordinate system name:
*Projected coordinate system name: NAD_1983_UTM_Zone_14N
*Geographic coordinate system name: GCS_North_American_1983

Planar:
Grid coordinate system:
*Grid coordinate system name: Universal Transverse Mercator
Universal Transverse Mercator:
*UTM zone number: 14
Transverse mercator:
*Scale factor at central meridian: 0.999600
*Longitude of central meridian: -99.000000
*Latitude of projection origin: 0.000000
*False easting: 500000.000000
*False northing: 0.000000

Planar coordinate information:
*Planar coordinate encoding method: row and column
Coordinate representation:
*Abscissa resolution: 1.000000
*Ordinate resolution: 1.000000
*Planar distance units: meters

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: 298.257222

Vertical coordinate system definition:
Altitude system definition:
Altitude datum name: NAD83 adjusted to Orthometric (CGVD28) using HTv2.0
Altitude resolution: 0.01
Altitude distance units: Meters
Altitude encoding method: Explicit elevation coordinate included with horizontal coordinates

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Entity and Attribute Information:


Overview description:
Entity and attribute overview:
The only attributes assigned were point classification during the processing phase using TerraScan. See process steps for details.

The only attributes are the elevation values and the encoded values for easting and northing coordinates. There are no attached attribute tables.

Entity and attribute detail citation:
None

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Distribution Information:


Resource description: Downloadable Data


Standard order process:
Digital form:
Digital transfer information:
*Transfer size: 0.000
*Dataset size: 0.000

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Metadata Reference Information:


*Metadata date: 20081024


*Language of metadata: en


Metadata contact:
Contact information:
Contact organization primary:
Contact person: David Ronneberg
Contact organization: LiDAR Services International Inc.

Contact address:
Address type: Mailing and physical
Address:
250, 3115 12th Street NE
City: Calgary
State or province: Alberta
Postal code: T2E 7J2
Country: Canada

Contact voice telephone: 403 517 3130
Contact facsimile telephone: 403 291 5390


*Metadata standard name: FGDC Content Standards for Digital Geospatial Metadata
*Metadata standard version: FGDC-STD-001-1998
*Metadata time convention: local time


Metadata extensions:
*Online linkage: http://www.esri.com/metadata/esriprof80.html
*Profile name: ESRI Metadata Profile

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Binary Enclosures:


Thumbnail:
Enclosure type: Picture



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