GNSS TEC, GIS and IVM data

The data uploaded includes GPS, GLONASS and GALILEO vTEC, latitude, longitude and elevation angle on 15 January 2022. The TEC is 30-seconds sampled (2880 epochs). The data is in 3-dimensions, with one dimension for number of epochs, other one for number of satellites, and third dimension for the number of stations. There are three separaet mat files for each GNSS mission.The files with names GPSTEC_20220115.mat, GALTEC_20220115.mat, and GLOTEC_20220115.mat are the TEC data over the Japan/Taiwan - Australia/NewZealand region. The TEC data used for the India, Africa and America sectors in Figure S1 are upload with the corresponding names of the sectors/regions included in the filenames. <br> The GIS electron densiy is uploaded as a compress tar file GISdata.tar.gz.. This includes GIS data for 11, 12, 13, and 15 January 2022, in separate folders. Each folder contains 24 netCDF files correspodning to each UT hour. The data have 31 alttiude points (100-7000 km @20km), 73 latitude points (-90 to 90 @2.5 degree) and 72 longitude points (-180 to 175 @5 degrees). <br> The FORMOSAT-7/COSMIC-2 IVM data used in the figures and supporting information is uploaded as ivm_Tonga_20220115.nc in netCDF format. The file includes the variables, IVMden, IVMlat, IVMlon, and IVMUT. Here IVMden is the ion density per cm³, IVMlat, IVMlon, and IVMUT are the corresponding latitude, longitude and UT hour.