Figure 3
From: Assessment of atmospheric emissivity models for clear-sky conditions with reanalysis data

Comparison of net radiation computed using uncalibrated (a,c,e,g) and calibrated (b,d,f,h) Brutsaert’s equation in the estimated worldwide clusters: Cluster 1 (a,b); Cluster 2 (c,d); Cluster 3 (e,f); and Cluster 4 (g,h).