Fig. 5
From: Statistical analysis of low-latitude spread F observed over Puer, China, during 2015–2016

The occurrence rates of four types of SF under different geomagnetic conditions in 2015–2016
From: Statistical analysis of low-latitude spread F observed over Puer, China, during 2015–2016
The occurrence rates of four types of SF under different geomagnetic conditions in 2015–2016