Correlation Between the SPA of LF Skywaves and the Solar X-ray Events

The statistical analyses are made on the basis of the observations of the SPA of LF skywaves obtained at the Yunnan Observatory and of the X-ray data published by 《SGD》. It can be seen from the analysed results that the SPA of LF skywaves is correlated well with the solar X-ray bursts. Some useful results are also derived from the analyses.