Mapping the GPS total electron content and scintillation activity at southern higher latitudes during high sunspot numbers

Data explanations: This is a fragment from a program that was used to convert the raw files into a more usable form; scin_temp.fieldnames=['week','time','prn','warm','azi','elev','cno','s4tot', 's4cor','s1','s3','s10','s30','s60','cdiv','sdiv','spect','phaset','k0','k1' ,'k2','k3'] Column 1; week - is GPS week number. This is the number of weeks that have elapsed since the GPS week rollover which was week beginning 22/8/99.

Column 2; time - time in seconds since the start of the week Column 3; prn - GPS satellite PRN number - each satellite has a unique code Column 4; warm - Satellite Lock time (seconds) (not sure about this one - this may be something else) Column 5; azi - Satellite's current azimuth angle (degrees) Column 6; elev - Satellite's current elevation angle (degrees) Column 7; cno - C / No (dB/Hz) (don't know what this is used for) Column 8; s4tot - S4 index (a standard scaled measure of amplitude scintillation activity) (dimensionless) Column 9; s4cor - S4 index corrected to take into account the elevation angle of the satellite.

(dimensionless) Column10; s1 - phase sigma index 1 second averaged (radians) Column11; s3 - phase sigma index 3 second averaged (radians) Column12; s10 - phase sigma index 10 second averaged (radians) Column13; s30 - phase sigma index 30 second averaged (radians) Column14; s60 - phase sigma index 60 second averaged (radians) Column15; cdiv - Average of Code/Carrier divergence (meters) Column16; sdiv - Sigma of Code/Carrier divergence (meters) Column17; spect - Phase spectral strength T (dB) Column18; phaset - Phase spectral slope P (dB) Column19; k0 - Amplitude Spectrum K0 (dB) Column20; k1 - Amplitude Spectrum K1 (dB) Column21; k2 - Amplitude Spectrum K2 (dB) Column22; k3 - Amplitude Spectrum K3 (dB)