The following summary plots have been generated from data collected for the NASA LWS HF Investigation of D-Region Ionospheric Variation Experiment (HIDIVE) project. The purpose of the project is to study the effects of D-region absorption on HF propagation. Currently, the standard time stations WWV (Colorado) and WWVH (Hawaii) are being monitored by the Space Environment Corporation in Providence, Utah, and at Bear Lake Observatory (BLO) near Garden City, Utah, and by RP Consultants in Klamath Falls, Oregon.
NOAA/GOES X-ray summary plots:
Logarithmic scale on plots has the following correspondence to flare magnitude class: A=-80 dB, B=-70 dB, C=-60 dB, M=-50 dB, X=-40 dB, and X10=-30 dB.
Geophysical indices summary plots:
Other HIDIVE plots are available: