Table 3 Coefficients of a linear fit \( N_{\text{m}} F2\text{(RISR)} = a \cdot N_{\text{m}} F2\text{(RKN)} + b \) to scatter plot of RISR electron density versus RKN electron density for 1 beam (first 4 lines) and 20 beam (last 4 lines) RISR measurements (Fig. 7)

From: Comparison of SuperDARN peak electron density estimates based on elevation angle measurements to ionosonde and incoherent scatter radar measurements