gnssir_rt

This software is to go with "Real-time water levels using GNSS-IR: a potential tool for flood monitoring" by Purnell et al. (Geophysical Research Letters) All code written by David Purnell except for gnssr/make_gpt.py (written by Kristine Larson)

Installation

Requires python >= 3.9, git and pip.

git clone https://github.com/purnelldj/gnssir_rt.git
cd gnssir_rt
python -m pip install -e .

How to use the code

Below is an example of how to process one day of data from Saint-Joseph-de-la-Rive.

Step 1: initialise localproc directory

python init_localproc.py

Step 2: process test data

python main_cl.py sjdlr arcs2splines

this command should produce the following plot:

general usage

python main_cl.py [station] [funcname]

[station] corresponds to a file: site_inputs/[station].py (either sjdlr or rv3s)
[funcname] is one of snr2arcs, arcsplot or arcs2splines You can edit the station file in site_inputs as desired

Article data

SNR data to go with the paper can be found here. It can be downloaded using zenodo_get

zenodo_get 10.5281/zenodo.10114719

Note: this will take a few minutes (~ 1Gb of data)

SNR data format

The SNR data format is similar to this format, but with differences on fourth and fifth columns:

instead of seconds of day in the fourth column it is GPS time
the fifth column is L1 SNR (there are only five columns)