Toolset for TID analysis which uses HAMSci-psws DRF data

[n6r...@gmail.com]

Hi Everyone,

I enjoy hunting for travelling ionospheric disturbances (TIDS) sometimes seen in psws DRF results and have sought to use HAMSci HF data to study them further.

Here is a link to a new toolset which may be of interest.  While each step in the analysis procees can be done in a stepwise manner, there is also a script whivh makes the process semi-automated.  

https://github.com/N6RFM/psws-drf-tid-tools

Starting from one station's data — your own, or any interesting event you spot on the network — it finds other PSWS stations that may have recorded the same event and downloads their data automatically. The toolset then extracts Doppler-vs-time traces using one of multip,e available metods. From there, the toolset estimates a multi-station direction-of-arrival fit — wave speed, heading, and arrival direction.  

Results can also be cross-checked using several independent tools: GPS TEC data pulled from the Madrigal database and external space-weather context (Kp/AE indices, solar flare timing).

Note that TID calculations assume a planar wave, single-hop F-region propagation, and vertical-incidence reflection at the great-circle midpoint between each receiving station and the WWV transmitter.  As such, results should be considered as informed estimates.

Will do my best to answer any questions, feedback always welcone.

73,

Bob

N6RFM