NetCDF to GeoJSON Vectors

Convert CF-compliant NetCDF files with vector attributes (u, v, magnitude, direction) to GeoJSON.

Usage

Install Python requirements:

pip install -r requirements.txt

Arguments

netcdf_to_geojson_vectors.py [-h] [-c CONFIG_FILE] [-d INPUT_DIR] [-i INPUT_FILE] [-m MAX_RECORDS] [-o OUTPUT_DIR]

  -h, --help            Show this help message and exit
  -c CONFIG_FILE, --config_file CONFIG_FILE
                        Configuration file
  -d INPUT_DIR, --input_dir INPUT_DIR
                        Directory containing input files
  -i INPUT_FILE, --input_file INPUT_FILE
                        Input file
  -m MAX_RECORDS, --max_records MAX_RECORDS
                        Maximum number of records to process
  -o OUTPUT_DIR, --output_dir OUTPUT_DIR
                        Output directory

Example

./netcdf_to_geojson_vectors.py -c sample_oscar.cfg -i ./data/oscar_currents_final_20200101.nc -o output/

Configuration Options

• latVar: Name of the latitude variable in the source data file
• lonVar: Name of the longitude variable in the source data file
• magnitudeVar: Name of the magnitude variable in the source data file
• directionVar: Name of the direction variable in the source data file
• uVar: Name of the u variable in the source data file
• vVar: Name of the v variable in the source data file
• convertUV: Convert u and v components to magnitude and direction
• convertMagDir: Convert magnitude and direction components to u and v
• is360: Convert extents from 0 - 360 to -180 - 180
• extraVars: An array of extra variables to include with the GeoJSON output