| Metadata for DP ME 479, Version 1, 2012, Shaded Relief Images Derived from a 1m LiDAR Bare-Earth Digital Elevation Model of the Cobequid Highlands Area, Cumberland, Colchester and Pictou Counties, Nova Scotia, Compiled by J. C. Poole and B.E. Fisher.
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| Table Of Contents |
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__________________________________________________________________ |
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| Identification Information |
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| Citation Information |
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Title: |
DP ME 479, Version 1, 2012, Shaded Relief Images Derived from a 1m LiDAR Bare-Earth Digital Elevation Model of the Cobequid Highlands Area, Cumberland, Colchester and Pictou Counties, Nova Scotia, Compiled by J. C. Poole and B.E. Fisher.
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Originator: |
J. C. Poole, B. E. Fisher |
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Publication Date: |
March 2012 |
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Edition: |
1 |
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Data Type: |
raster digital data |
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Series: |
Digital Product |
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Issue Identification: |
DP ME 479 |
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Publisher: |
Nova Scotia Department of Natural Resources, Mineral Resources Branch |
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Publication Place: |
Halifax, Nova Scotia, Canada |
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Online linkage: |
https://novascotia.ca/natr/meb/download/dp479.asp |
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| Data Description |
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Abstract: |
This digital product consists of 144 shaded relief images derived from three contiguous LiDAR bare-earth Digital Elevation Models (DEM) of the Cobequid Highlands of Nova Scotia. The DEMs were gridded at 1m cell size from three areas of a survey carried out in December, 2011. Images were processed at 8 shading azimuths (0, 045, 090, 135, 180, 225, 270, 315) and 3 different altitudes (30°, 45°, 60°). The images were produced with two different vertical exaggerations (5 and 10).
The digital product was created by the Nova Scotia Department of Natural Resources, Mineral Resources Branch (MRB) staff.
The original DEM processing and creation was done by Leading Edge Geomatics from December 11, 2010 to March 21, 2011 and was supplied to MRB in a number of raster formats. The bare-earth DEM has buildings and vegetation removed. The XY Positional accuracy is 0.5 m along and across track and the overlap between lines was 50%. The point density was a minimum 1 point per square metre with a vertical accuracy of 15 cm (95% of the time for open cleared flat areas). The LiDAR capture was done in leaf-off conditions, with no snow or only a very thin snow cover.
Funding for this product was provided by the Government of Canada, Natural Resources Canada under the Methodology Developments Project of the Targeted Geoscience Program 4 (TGI-4). The Cobequid Highland LiDAR survey is a collaborative project between the Geological Survey of Canada and the Nova Scotia Department of Natural Resources. |
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Purpose: |
To produce a series of shaded relief images from a 1m resolution LiDAR DEM in the Cobequid Highlands of Nova Scotia. This product has been and will be useful in a number of applications, including terrain analysis, watershed mapping, structural interpretation, surficial and bedrock mapping. |
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Supplemental Information: |
Data Set ID = e479ch; Data Class = lidar; Project ID = Cobequid Highlands
NovaScan ID = none
Project ID = dem10 |
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Language |
English |
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Data Credit: |
Nova Scotia Department of Natural Resources |
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Data Environment |
ArcGIS Desktop 10 |
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Native Data Set Format |
JPEG |
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| Contact Information |
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Jeff Poole |
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Nova Scotia Department of Natural Resources, Mineral Resources Branch |
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Digital Information Services Supervisor |
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1701 Hollis Street, P.O. Box 698 |
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Halifax, Nova Scotia, Canada |
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B3J 2T9 |
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(phone) 902-424-8139 |
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(fax)
902-424-7735 |
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Staff Contact |
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Available:
9:00 a.m. to 5:00 p.m. AST Monday-Friday |
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| Time Period Information |
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Beginning Date: |
2010-12-10 |
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Ending Date: |
2011-03-21 |
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Currentness Reference: |
ground condition |
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| Data Status |
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Progress: |
Complete |
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Update Frequency: |
None planned |
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| Spatial Domain |
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West Coordinate: |
-64.183527387 |
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East Coordinate: |
-62.867770086 |
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North Coordinate: |
45.89011406 |
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South Coordinate: |
45.170026677 |
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G-Poly coordinates |
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G-Poly Pair(1 of 1) |
0, 0 |
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| Keywords |
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Theme Keywords: |
Geologic & Geophysical; geoscientificInformation; digital elevation model; shaded relief; Downloadable Data; Elevation and Derived Products; Shaded Relief DEM; DEM Images; surficial geology / geomorphology |
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Place Keywords: |
Cobequid Highlands |
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| Access and Usage Information |
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Access Constraints: |
The access constraints are contained in the following License Agreement which the user must agree to before using the data. A copy of the License Agreement is included with the digital product. The License Agreement reads as follows
For the data contained on this medium (media), or any part thereof, herein called the DATA
Between the PROVINCE OF NOVA SCOTIA as represented by the Nova Scotia Department of Natural Resources, hereinafter referred to as NR&R
and the recipient of the data hereinafter called the USER
For good consideration, the receipt of which is acknowledged, NR&R licences the non-exclusive use of the digital DATA to the USER on the following terms and conditions.
TERMS AND CONDITIONS
NR&R remains the owner of the DATA and is not assigning copyright privileges to the USER.
The USER agrees to acknowledge NR&R as the source of the DATA, if using or distributing it in its original form, whether in whole or in part, or as part of a value added product.
NR&R reserves the right to modify and/or update the DATA without obligations to notify the USER.
The DATA is provided to the USER on an "as is" basis, without warranties of any kind, express or implied.
The entire risk as to the quality and accuracy of the DATA is with the USER and the USER shall use his/her own judgment in making use of the DATA or drawing conclusions based upon it.
NR&R shall not be liable to the USER, his/her clients, servants, agents, contractors, assigns, or to any other person for any loss or damage of any kind including personal injury or death arising from the use of the DATA or accompanying written materials, or from errors, deficiencies or faults therein, whether such damage is caused by negligence or otherwise. If errors or omissions are found in the DATA, the USER will notify NR&R.
This Licence is the entire Agreement between the parties and supersedes all previous Agreements or understandings between NR&R and the USER hereto, whether written or oral, in connection with or incidental to the DATA. This Licence shall be binding upon the parties hereto and each of their executors, administrators, successors and assigns and shall ensure to the benefit of such executors, administrators, successors and authorized assigns.
This Licence must be included with the DATA if the USER copies, resells, or re-distributes the DATA whether in whole or in part.
This Licence can be terminated by NR&R at any time. Upon such termination, the USER shall refrain from using the DATA and destroy all copies and backups in the USER'S possession.
This Licence is in effect once the USER reads and accepts the Terms and Conditions of this Licence. If the USER is unable or unwilling to fully comply with these terms and conditions, the USER must refrain from using the DATA. By using the DATA, the USER acknowledges that he/she was aware of the terms and conditions of this Licence when he/she accepted it, understood them, and agreed to be bound by them."
A copy of the terms and conditions of the license are available with the downloaded product. |
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Use Constraints: |
As per license agreement. |
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| Security Information |
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Classification System: |
none |
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Classification: |
Unclassified |
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Handling Description: |
none |
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| Cross Reference Information |
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| Cross Reference (1 of 1) |
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Title: |
DP ME 478, Version 1, 2012, One Metre Bare-Earth LiDAR Digital Elevaton Model for the Cobequd Highlands Area, Cumberland, Colchester and Pictou Counties, Nova Scotia, Compiled by J.C. Poole and B.E. Fisher |
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Originator: |
Nova Scotia Department of Natural Resources, Mineral Resources Branch |
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Publication Date: |
Unpublished Material |
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Data Form: |
raster digital data |
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Online Linkage: |
https://novascotia.ca/natr/meb/download/dp478.asp |
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Publication Place: |
Halifax , Nova Scotia |
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Publisher: |
Nova Scotia Department of Natural Resources, Mineral Resources Branch |
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__________________________________________________________________ |
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| Data Quality Information |
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| Positional Accuracy |
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Positional Accuracy Report: |
The 1m shaded relief images were derived from three contiguous 1m DEMs. The DEMs have a vertical accuracy of 0.153m at 95% confidence versus 160 survey ground control points. The horizontal coordinate system used was UTM20 NAD83CSRS
and the vertical coordinate system was Canadian Geodetic Vertical Datum 1928 (CGVD28 via HT2.0). The bare-earth DEMs have buildings and vegetation removed. The XY Positional accuracy is 0.5 m along and across track and the overlap between lines was 50%. The point density was a minimum 1 point per square meter with a vertical accuracy of 15 cm (95% of the time for open cleared flat areas). The LiDAR capture was done in leaf-off conditions, with no snow or only a very thin snow cover.
There may be positional accuracy errors in the digital data that come from the original data collection, plus there are errors added by the process of gridding the data. The entire risk as to the quality and accuracy of the data is with the user and the user shall use his/her own judgment in making use of the data or drawing conclusions from it. |
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| Source Information |
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| Source (1 of 1) |
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Title: |
DP ME 478, Version 1, 2012, One Metre Bare-Earth LiDAR Digital Elevaton Model for the Cobequd Highlands Area, Cumberland, Colchester and Pictou Counties, Nova Scotia, Compiled by J.C. Poole and B.E. Fisher |
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Originator: |
Nova Scotia Department of Natural Resources, Mineral Resources Branch |
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Publication Date: |
Unpublished Material |
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Publication Time: |
Unknown |
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Data Form: |
raster digital data |
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Publication Place: |
Halifax, Nova Scotia, Canada |
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Publisher: |
Nova Scotia Department of Natural Resources, Mineral Resources Branch |
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Scale Denominator: |
none |
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Source Media: |
disc |
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Citation Abbreviation: |
DP ME 478, Version 1, 2012, One Metre Bare-Earth LiDAR Digital Elevaton Model for the Cobequd Highlands Area, Cumberland, Colchester and Pictou Counties, Nova Scotia, Compiled by J.C. Poole and B.E. Fisher |
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Source Contribution: |
The original DEM processing and creation was done by Leading Edge Geomatics from December 11, 2010 to March 21, 2011 and was supplied to MRB in a number of raster formats. The bare-earth DEM has buildings and vegetation removed. The XY Positional accuracy is 0.5 m along and across track and the overlap between lines was 50%. The point density was a minimum 1 point per square metre with a vertical accuracy of 15 cm (95% of the time for open cleared flat areas). The LiDAR capture was done in leaf-off conditions, with no snow or only a very thin snow cover
Service Nova Scotia and Municipal Relations, Registry and Information Management Services, Nova Scotia Geomatics Centre produced the Enhanced Digital Elevation Model in conjunction with the Department of Natural Resources, the Department of Environment, and the Department of Agriculture and Fisheries. This product was generated at a resolution of 20 meters and geographically covers the province of Nova Scotia. The Enhanced Digital Elevation Model was developed in the Grid environment of ArcInfo version 7.1 using the topogrid command. This interpolation method generated a hydrologically correct grid of elevation for Nova Scotia.
Input coverages were selected from the 1:10 000 Digital Resource Mapping Series.
The input coverages include:
elevation points, irregularly spaced approximately 80 meters;
elevation points, representing hydrologic features (streams);
open water outlines with elevation values (lakes, coastline);
breakline features (cliffs);
contour lines - 5 meter where applicable;
spot heights - where applicable |
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Currentness Reference: |
publication date |
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Online Linkage: |
https://novascotia.ca/natr/meb/download/dp478.asp |
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| Processing Step Information |
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| Processing Step (1 of 1) |
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Description: |
The shaded relief images were processed in ArcGIS Desptop 10 (SP3) Arcview license level using the Spatial Analyst extension and arcpy scripts written by Jeff Poole. The shaded relief images were generated using the Hillshade tool:
arcpy.gp.HillShade_sa(DEM_in, HS_out, az, alt, "NO_SHADOWS", zf)
where DEM_in = (COBEQUID_A_GROUND_1m_cgvd28.tif, COBEQUID_B_GROUND_1m_cgvd28.tif and COBEQUID_C_GROUND_1m_cgvd28.tif ) represent 32-bit floating point grids as input in respective runs with the following other parameters ...
HS_out = temporary ArgGIS grid (integer, 0-255)
az = (0, 045, 090, 135, 180, 225, 270, 315),
alt = (30, 45, 60), and
zf = (5, 10)
JPGs were created using the following arcpy tool:
arcpy.RasterToOtherFormat_conversion(HS_out, JPG_out, "JPEG")
where HS_out is an output hillshades grid from above,
and JPG_out the directory of the output JPG images. Files names are the same as the HS_out grids. |
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Software and Version: |
ArcGIS Desktp 10.0 SP3 (ArcView) with the Spatial Analyst Extension |
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Date: |
January and February, 2012 |
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__________________________________________________________________ |
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| Spatial Data Organization Information |
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Spatial Reference Method: |
Raster |
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Raster Type: |
Grid Cell |
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Cell Size X Direction: |
1 |
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Cell Size Y Direction: |
1 |
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Image Format: |
JPG |
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__________________________________________________________________ |
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| Spatial Reference Information |
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Data Projection: |
Universal Transverse Mercator |
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Zone: |
20
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Scale Factor at Central Meridian: |
0.9996
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Longitude at Central Meridian: |
-63.0
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Latitude of Projection Origin: |
0
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False Easting: |
500000
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False Northing: |
0
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Geographic Coordinate System: |
GCS_North_American_1983_CSRS
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Projected Coordinate System: |
NAD_1983_CSRS_UTM_Zone_20N
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Datum: |
North American Datum of 1983 (CSRS)
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Ellipsoid: |
Geodetic Reference System 80
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Semi-Major Axis: |
6378137.0
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Denominator Of Flattening Axis: |
298.257222
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__________________________________________________________________ |
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| Distribution Information |
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Description: |
Downloadable Data |
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Digital Custom Order Process: |
Digital Product Number = DP ME 479 |
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Available: |
March 6, 2012 |
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Liability: |
The DATA is provided to the USER on an "as is" basis, without warranties of any kind, express or implied.
The entire risk as to the quality and accuracy of the DATA is with the USER and the USER shall use his/her own judgment in making use of the DATA or drawing conclusions based upon it.
NR&R shall not be liable to the USER, his/her clients, servants, agents, contractors, assigns, or to any other person for any loss or damage of any kind including personal injury or death arising from the use of the DATA or accompanying written materials, or from errors, deficiencies or faults therein, whether such damage is caused by negligence or otherwise. If errors or omissions are found in the DATA, the USER will notify NR&R.
The terms and conditions of the license accompany the downloaded digital product. |
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Technical Prerequisite: |
In order to view our digital files on your computer, you require mapping software (e.g. ArcGIS, ArcInfo, ArcView, MapInfo, AutoCAD). If you do not have this software, ESRI provides two free Map Viewer called ArcExplorer2 and ArcExplorer4 which you can download over the Internet. ArcExplorer2 works with our "E00", "SHP", "JPG", "SID" and "TIF" files, while ArcExplorer4 worked with our SHP, TIF, JPG and web services. The "TIF" and "JPG" image file formats can be viewed in a number of graphics and image packages including CorelDraw and Paint Shop Pro. The MRSID "SID" images can be viewed in an increasing number of image packages as well as with a free MrSID viewer supplied by LizardTech. Links for these and other map viewers can be found at the bottom of https://novascotia.ca/natr/meb/download/gis-data-maps.asp. |
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Ordering Fee: |
Free |
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Instructions: |
The data set can be downloaded over the Internet |
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Distribution Contact: |
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see contact information |
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| Digital Form: (1 of 1) |
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format name: |
JPG |
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format specification: |
The data set contains a 144 shaded relief images (48 from each of three areas that cover the total LiDAR survey area). The following file naming convention was used: dp479v1_aaa_xxx_yy_zz_jg.zip/exe unzip to e479ch_aaa_sxxxyyzz_1m.jpg where: aaa= area either p1a - Part 1 A, p1b - Part 1 B, or p2c - Part 2 C, xxx = azimuth (000, 045, 090, 135, 180, 225, 270, 315) , yy = altitude (30, 45, 60), and zz = vertical exaggeration (05, 10). |
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Transfer Size: |
76 MB to 154 MB |
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Dataset Size: |
76 MB to 154 MB |
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Information Content: |
1 shaded relief JPG image and 1 ESRI world file, plus metadata xml and htm files. |
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Decompression Technique: |
self extracting winzip archive file |
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Online Transfer: |
https://novascotia.ca/natr/meb/download/dp479.asp |
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__________________________________________________________________ |
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| Metadata Reference |
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Creation Date: |
20120303 |
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Metadata Standard: |
FGDC Content Standards for Digital Geospatial Metadata |
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Standard Version: |
FGDC-STD-001-1998 |
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Metadata Language: |
English |
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Time Convention: |
local time |
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Review Date: |
As required |
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Access Constraints: |
none |
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User Constraints: |
none |
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Security Classification System: |
none |
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Security Classification: |
Unclassified |
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Security Handling Description: |
none |
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Metadata Contact: |
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see contact information |
