Shaded Relief Images of the Cobequid Highlands Area, Nova Scotia

DP ME 479, Version 1, 2012. Shaded Relief Images Derived From a 1 m LiDAR Bare-Earth Digital Elevation Model of the Cobequid Highlands Area, Cumberland, Colchester and Pictou Counties, Nova Scotia, Compiled by B.E. Fisher and J.C. Poole.

Disclaimer

General Location Map

Project Location Map

Detailed View

Format and Projection

Metadata

Download Instructions

Download Digital Data Set

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, 2010. 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.

Disclaimer

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.

DNR 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 DNR.

The terms and conditions of the license accompany the downloaded digital product.


General Location Map

Location Map

Project Location Map

Sample Image


Detailed View

Detailed View

Note the ~E-W trending basalt lava flows of the Diamond Brook Formation in the top part of this image along with the square wind farm platforms, with connecting road network, in the lower part of the image. For other examples see the following poster from Geology Matters 2011 ... PDF Link.


Format and Projection

Format JPEG Images (JPG), world files to georeference the images in a GIS (JGW), Various TXT, HTML and XML files with documentation and metadata about the product compressed in self-extracting EXE/ZIP files (more information on data formats). There is a total of 144 images, 48 images for each of the 3 areas that make up the survey.
Size

JPG - All 144 images are 16 GB (uncompressed). Indivudual images range from 76 MB to 136 MB (uncompressed).

Projection The data is in six-degree Universal Transverse Mercator (UTM) projection, Zone 20, Central Meridian 63° 00' West using the North American Datum of 1983 (NAD83).

Downloading Instructions

The data files have been compressed using PKZIP into a single, self-extracting EXE file.

  1. Read the Licence before accepting the data.
  2. Download the self-extracting EXE file to the desired location on your hard drive.
  3. Double click or "RUN" the EXE file and the data files will be unzipped automatically.

The EXE file can also be opened in WinZip to view and extract the compressed files in the data set.

On UNIX platforms, the unzip command will extract the compressed files in the EXE.

All data sets are in six-degree Universal Transverse Mercator (UTM) Zone 20 projection using the NAD83 datum.

A readme file and a copy of the licence agreement are also included with each data set.


Download Digital Data Set DP ME 479