Catfish Creek 2012 LiDAR DEM

Raster Dataset

 

Tags
LiDAR, Manitoba, Canada


Summary

Data set represents ground features. Bare earth DEM files were created from calibrated and classified las data. This 1 meter grid raster product was extracted from a TIN that was created from the ground class (2) of the las data.

Description

The project area is 396 tiles (1500 x 1500 meters) covering approximately 800 square kilometers in the area designated as Catfish Creek, located northeast of Winnipeg in Manitoba, Canada. The project design of the lidar data acquisition was developed to support a nominal post spacing of 1.0 meter. ATLIS Geomatics Inc. acquired 79 flight lines in 5 lifts from May 9, 2012 through May 12, 2012. Lidar data collection was performed with a Cessna C206 aircraft, utilizing a Optech Gemini sensor, collecting multiple return x, y, and z data as well as intensity data. Lidar data is remotely sensed high-resolution elevation data collected by an airborne collection platform. Sensor collection parameters are as follows. Fligh Altitude: 1550 m AGL Air Speed: 130kts Average NPS: 1.14 m Scan Half Angle: 24 deg Scan Frequency: 29 Hz Swath Width: 1380 m Overlap: 30% PRF: 70 kHz.

Credits

ATLIS Geomatics Inc. 1333 Dugald Road Winnipeg, MB, Canada 913.981.9600

Use limitations

Extent

West -96.542402   East -96.036695
North 50.656029   South 50.294371

Scale Range
Maximum (zoomed in) 1:5,000
Minimum (zoomed out) 1:150,000,000

ArcGIS Metadata 

Topics and Keywords 

Themes or categories of the resource  elevation


*Content type  Downloadable Data
Export to FGDC CSDGM XML format as Resource Description No

Place keywords  Manitoba, Canada

Theme keywords  LiDAR

Citation 

Title Catfish Creek 2012 LiDAR DEM
Creation date 2012-05-12 00:00:00


Presentation formats* digital map


Citation Contacts 

Responsible party
Organization's name ATLIS Geomatics Inc.
Contact's role  point of contact


Contact information
Phone
Voice 204-775-1211

Address
Type both
Delivery point 1333 Dugald Road
City Winnipeg
Administrative area MB
Postal code R2J 0H3



Responsible party
Individual's name Michelle Methot
Organization's name Infrastructure Department, Government of Manitoba
Contact's position Development Review Specialist
Contact's role  custodian


Contact information
Phone
Voice 204-918-2869
Fax 204-945-7419

Address
Type both
Delivery point 280 Broadway Ave
City Winnipeg
Administrative area Manitoba
Postal code R3C 0R8
Country CA
e-mail addressMichelle.Methot@gov.mb.ca



Resource Details 

Dataset languages  English (CANADA)
Dataset character set  utf8 - 8 bit UCS Transfer Format


Status  completed
Spatial representation type  grid


*Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.1.3549


Credits
ATLIS Geomatics Inc. 1333 Dugald Road Winnipeg, MB, Canada 913.981.9600

ArcGIS item properties
*Name e194_cc
*Location file://L:\elv\e19\4_\cc\e194_cc
*Access protocol Local Area Network

Extents 

Extent
Description
ground condition

Temporal extent
Beginning date 2012-05-09 00:00:00
Indeterminate date 05/09/2012
Ending date 2012-05-12 00:00:00
Indeterminate date 05/12/2012

Extent
Geographic extent
Bounding rectangle
Extent type  Extent used for searching
*West longitude -96.542402
*East longitude -96.036695
*North latitude 50.656029
*South latitude 50.294371
*Extent contains the resource Yes

Extent in the item's coordinate system
*West longitude 675000.000000
*East longitude 709500.000000
*South latitude 5575500.000000
*North latitude 5614500.000000
*Extent contains the resource Yes

Resource Points of Contact 

Point of contact
Organization's name ATLIS Geomatics Inc.
Contact's role  resource provider


Contact information
Phone
Voice 204-775-1211

Address
Type both
Delivery point 1333 Dugald Road
City Winnipeg
Administrative area MB
Postal code R2J 0H3



Point of contact
Individual's name Michelle Methot
Organization's name Infrastructure Department, Government of Manitoba
Contact's position Development Review Specialist
Contact's role  custodian


Contact information
Phone
Voice 204-918-2869
Fax 204-945-7419

Address
Type both
Delivery point 280 Broadway Ave
City Winnipeg
Administrative area Manitoba
Postal code R3C 0R8
Country CA
e-mail addressMichelle.Methot@gov.mb.ca



Resource Maintenance 

Resource maintenance
Update frequency  not planned


Spatial Reference 

ArcGIS coordinate system
*Type Projected
*Geographic coordinate reference GCS_North_American_1983
*Projection NAD_1983_UTM_Zone_14N
*Coordinate reference details
Projected coordinate system
Well-known identifier 26914
X origin -5120900
Y origin -9998100
XY scale 450445547.3910538
Z origin -100000
Z scale 10000
M origin -100000
M scale 10000
XY tolerance 0.001
Z tolerance 0.001
M tolerance 0.001
High precision true
Latest well-known identifier 26914
VCSWKID 5713
LatestVCSWKID 5713
Well-known text PROJCS["NAD_1983_UTM_Zone_14N",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-99.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",26914]],VERTCS["CGVD_1928",VDATUM["Canadian_Geodetic_Vertical_Datum_of_1928"],PARAMETER["Vertical_Shift",0.0],PARAMETER["Direction",1.0],UNIT["Meter",1.0],AUTHORITY["EPSG",5713]]

Reference system identifier
Dimension horizontal
Value 26914
Codespace EPSG
*Version 8.2.6


Reference system identifier
Dimension vertical
Value 5713
*Codespace EPSG
*Version 8.2.6


Spatial Data Properties 

Georectified Grid
*Number of dimensions 2


Axis dimensions properties
Dimension type  column (x-axis)
*Dimension size 34500
*Resolution  1.000000 Meter

Axis dimensions properties
Dimension type  row (y-axis)
*Dimension size 39000
*Resolution  1.000000 Meter

*Cell geometry  area
*Point in pixel  center


*Transformation parameters are available Yes


*Check points are available No


Corner points
*Point 675000.000000 5575500.000000
*Point 675000.000000 5614500.000000
*Point 709500.000000 5614500.000000
*Point 709500.000000 5575500.000000

*Center point 692250.000000 5595000.000000




ArcGIS Raster Properties
General Information
*Pixel depth 32
*Compression type None
*Number of bands 1
*Raster format GRID
*Source type continuous
*Pixel type floating point
*No data value -3.4028235e+038
*Has colormap No
*Has pyramids Yes




Spatial Data Content 

Image Description
*Type of information  physical measurement
Attribute described by cell values Elevation


Band information
*Description Band_1
*Maximum value 308.622009
*Minimum value 217.188004
Units
Symbol m

*Number of bits per value 32


Triangulation has been performed No
Radiometric calibration is available No
Camera calibration is available No
Film distortion information is available No
Lens distortion information is available No


Data Quality 

Scope of quality information


Data quality report - Conceptual consistency
Measure description
Compliance with the accuracy standard was ensured by the collection of GPS ground control during the acquisition of aerial lidar and the establishment of a GPS base station operation airport. The following checks were performed. 1. The ground control and airborne GPS data stream were validated through a fully analytical boresight adjustment. 2. The Lidar elevation data were checked against the project control. 3. Lidar elevation data was validated through an inspection of edge matching and visual inspection for quality (artifact removal).





Data quality report - Quantitative attribute accuracy
Measure description
The following methods are used to assure lidar accuracy. 1. Use of IMU and ground control network utilizing GPS techniques. 2. Use of airborne GPS in conjunction with the acquisition of lidar.





Data quality report - Absolute external positional accuracy
Dimension horizontal


Measure description
The minimum expected horizontal accuracy was tested during the boresight process to meet or exceed the National Standard for Spatial Data Accuracy (NSSDA). Horizontal accuracy is 75 centimeter RMSE or better.





Data quality report - Absolute external positional accuracy
Dimension vertical


Measure description
Vertical Accuracy RMSE(z) 0.061 meter



Quantitative test results
Value 0.061 meter


Evaluation method
Once all lifts are completed with Boresight adjustment individually, technician shall check and correct the vertical mis-alignment of all flight lines and also the matching between data and ground truth. This process includes calculating the zbias value for each flight line so that all flight lines are aligned vertically and the entire data set match to the ground control points within the project specified accuracy range. The technician will run a final vertical accuracy check against the control after the z correction. The result will be analyzed against the project specified accuracy to make sure it meets the requirement. 9028 control points were measured with a resulting 0.061 meter RMSE(z).





Lineage 

Process step
Description
1. Lidar, GPS, and IMU data was processed together using Applanix POSPac processing software. 2. Lidar data was transformed to the specified project coordinate system when imported into GeoCue software. 3. The lidar data set for each flight was checked for project area coverage and lidar post spacing was checked to ensure it meets project specifications. 4. The lidar collected at the project area was processed using Terrasolid products to correct the rotational, atmospheric, and vertical elevation differences that are inherent to lidar data. 5. Each lift was compared with all neighbors that contained overlapping areas to ensure calibration consistent across the AOI. 6. By utilizing the ground survey data collected at the project area, the lidar data was vertically biased to the ground. 7. Comparisons between the biased lidar data and ground survey data within the project area were evaluated and a final RMSE value was generated to ensure the data meets project specifications.





Source data
Description
Ground control was acquired by Atlis Geomatics.



Source citation
Title Ground Control Survey




Extent of the source data
Description
ground condition



Distribution 

Distribution format
*Name Raster Dataset
Version TIFF


Fields 

Overview Description
Entity and Attribute Overview
Optech Gemini sensor 1-meter post spacing LAS 1.2 format



Entity and Attribute Detail Citation
see process steps





Metadata Details 

Metadata language English (CANADA)
Metadata character set  utf8 - 8 bit UCS Transfer Format


Metadata identifier 766FE765-8570-493F-B3FD-F1F614E02DDC


Scope of the data described by the metadata  dataset
Scope name* dataset


*Last update 2016-08-17


ArcGIS metadata properties
Metadata format ArcGIS 1.0
Metadata style North American Profile of ISO19115 2003
Standard or profile used to edit metadata NAP


Created in ArcGIS for the item 2013-10-21 18:54:39
Last modified in ArcGIS for the item 2016-08-17 13:46:49


Automatic updates
Have been performed Yes
Last update 2016-08-17 13:46:49


Metadata Contacts 

Metadata contact
Organization's name ATLIS Geomatics Inc.
Contact's role  point of contact


Contact information
Phone
Voice Tel: (204 775-1211

Address
Type both
Delivery point 1333 Dugald Road
City Winnipeg
Administrative area MB
Postal code R2J 0H3



Metadata Maintenance 

Maintenance
Update frequency  not planned


Thumbnail and Enclosures 

Thumbnail
Thumbnail type  JPG

FGDC Metadata (read-only) 

Entities and Attributes