Alberta Elevation

Easy-to-use scripts for getting the elevations of geographic points within Alberta

Support

• Python 3.x is supported
• Input points can be Lon/Lat (EPSG:4326) or X/Y (EPSG:3776)
• All input points within Alberta are supported:
  • Longitude Bounds: [120° W, 110° W)
  • Latitude Bounds: [49° N, 60° N)

Data

• This project uses HGT files from the Shuttle Radar Topography Mission (SRTM) with 30 meter resolution.
• HGT files are binary files with all samples stored as signed 16-bit integers (big endian byte order).
• All data files can be found in the data directory.

Setup

git clone https://github.com/thomaslorincz/alberta-elevation
cd alberta-elevation
pip install -r requirements.txt

Note: It is recommended to use a virtual environment

process_point.py

Usage

python process_point.py <lon/x> <lat/y>

Parameters:

• lon: The West longitude of the point (positive/negative floating point number)
• lat: The North latitude of the point (positive/negative floating point number)

Output:

• This script prints its output to standard output.

Example

python process_point.py -113.4938 53.5461 

process_file.py

Usage

Use the interactive CLI:

python process_file.py

Or, use command line arguments:

python process_file.py <input> <coordinate system> <horizontal> <vertical> <output>

Arguments:

• input: The path to the input file
• coordinate system: Either "lonlat" or "xy"
• horizontal: The name of the column with horizontal coordinate data
• vertical: The name of the column with vertical coordinate data
• output (optional): The path to the output file (default = "output.csv") Example:

python process_file.py input.csv xy x-coord y-coord elevation_data.csv

Output:

• This script will output a new file according to the options specified.