Sivaraman, K. R; Sivaraman, H; Gupta, S. S; Howard, R. F
(Springer, 2010-10)
We have derived the velocities of meridional flows by measuring the latitudinal motions (or drifts) of umbrae of spot groups classified into three categories of area: 0 – 5 μ, 5 – 10 μ, and >10 μ (μ area in millionths of ...