Near Real Time CTIPe
Thermosphere/Ionosphere Predictions
as calculated by the Coupled Thermosphere Ionosphere Plasmasphere Electrodynamics (CTIPe) model. The model runs about 20 minutes ahead of real-time. Plots update every 10 minutes.
MUF3000
Maximum Usable Frequency (MHz) vs latitude (-90 to 90 deg) and longitude (0 - 360 deg) .
AverageMUF3000
Maximum Usable Frequency Average (MHz) over 30 days vs latitude (-90 to 90 deg) and longitude (0 - 360 deg) .
MedianMUF3000
Median MUF (MHz) over 30 days vs latitude (-90 to 90 deg) and longitude (0 - 360 deg) .
MUFdiff
Maximum Usable Frequency difference (MHz) from 30 day median vs latitude (-90 to 90 deg) and longitude (0 - 360 deg) .
MUFavediff
Maximum Usable Frequency difference (MHz) from 30 day average vs latitude (-90 to 90 deg) and longitude (0 - 360 deg) .
NmF2
Peak electron density (electrons per cubic meter) in the ionosphere (hmF2) vs latitude (-90 to 90 deg) and longitude (0 - 360 deg).
HmF2
Height (km) of the peak electron density in the ionosphere (hmF2) vs latitude (-90 to 90 deg) and longitude (0 - 360 deg).
O to N2 Ratio
Ratio of height integrated number density of Atomic Oxygen to Molecular Nitrogen vs latitude (-90 to 90 deg) and longitude (0 - 360 deg) .
Electron Density
Electron density (electrons per cubic meter) on pressure level 12 (about 300 km altitude) vs latitude (-90 - 90 deg) and longitude (0 - 360 deg) .
Neutral Temperature
Neutral temperature (Kelvin) on pressure level 12 (about 300 km altitude) vs latitude (-90 to 90 deg) and longitude (0 - 360 deg) .
TEC
Height integrated electron density (TECU, 1 TECU = 1.e16 elecrons/square meter) also called Vertical Total Electron Content (VTEC) vs latitude (-90 to 90 deg) and longitude (0 - 360 deg).
Total Iono Delay
Plot of the total ionosphere vertical error (in m if uncorrected) vs latitude (-90 to 90 deg) and longitude (0 - 360 deg). The Klobuchar model for single frequency receivers corrects about 50% of this error. Dual frequency receivers correct most of this error and other sources of error become dominant.
TEC-Alaska
Height integrated electron density (TECU, 1 TECU = 1.e16 elecrons/square meter) also called Vertical Total Electron Content (VTEC) vs latitude (54 to 72 deg) and longitude (173 - 230 deg).