13 citations · 20 across the 3 of their papers we have counts for
3 papers
astro-ph.SR2010★ 1 cited
Calibration of Sunspot Numbers
Leif Svalgaard
Waldmeier [1971] found a very tight relationship between the F10.7 solar radio flux and the sunspot number and suggested using the flux for an objective calibration of the sunspot…
astro-ph.SR2010★ 6 cited
Updating the Historical Sunspot Record
Leif Svalgaard
We review the evidence for the argument that Rudolf Wolf's calibration of the Sunspot Number is likely to be correct and that Max Waldmeier introduced an upwards jump in the sunspo…
astro-ph.SR2010★ 13 cited
The Solar Microwave Flux and the Sunspot Number
Leif Svalgaard, Hugh S. Hudson
The solar F10.7 index is has been a reliable and sensitive activity index since 1947. As with other indices, it has been showing unusual behavior in the Cycle 23/24 minimum. The or…