GNSS-IR data for "Real-time water levels using GNSS-IR: a potential tool for flood monitoring"

Organised SNR data used for GNSS-IR analysis in the article "Real-time water levels using GNSS-IR: a potential tool for flood monitoring" by David Purnell, Natalya Gomez, William Minarik and Gregory Langston.

Data is organised by sites:
'rv3x' is Trois-Rivières
'sjrx' is Saint-Joseph-de-la-Rive
The 'x' at the end signifies that there is data from multiple co-located antennas at these sites (see details about naming format below**)

SNR data is given as text files in the format specified here:
https://gnssrefl.readthedocs.io/en/latest/pages/file_structure.html#the-snr-data-format
Each line is coded in Python using:
"{0:3.0f} {1:10.4f} {2:10.4f} {3:10.0f} {4:7.2f} {5:7.2f} {6:7.2f} {7:7.2f} {8:7.2f} \n".format(sat, elv, azi, sod, 0, 0, snr, 0, 0)
where 'sat' is the satellite PRN identifier, with an offset such that GLONASS satellites are between 100-200 and Galileo are between 200-300
elv is satellite elevation (degrees)
azi is satellite azimuth (degrees)
sod is seconds of day
snr is L1 SNR

The key difference from the gnssrefl snr data format is the naming of the files.
Each file is of the format:
sssxYYMMDDHH.snr
**where sssx is the station ID ('sjr' or 'rv3') + the letter a, b, c or d to indicate the four co-located antennas
For example,
'rv3a20090917.snr' comprises of data from antenna 'a' at Trois-Rivières on 9th September 2020 at 17h (UTC)
'sjrd21111302.snr' comprises of data from antenna 'd' at Saint-Joseph-de-la-Rive on 13th November 2021 at 02h (UTC)
Each file contains one hour of data (as opposed to 24 hours in the gnssrefl format).