26 citations · 59 across the 4 of their papers we have counts for
4 papers
Variational estimation of the large scale time dependent meridional circulation in the Sun: proofs of concept with a solar mean field dynamo model
Ching Pui Hung, Allan Sacha Brun, Alexandre Fournier +3
We present in this work the development of a solar data assimilation method based on an axisymmetric mean field dynamo model and magnetic surface data, our mid-term goal is to pred…
Estimating the deep solar meridional circulation using magnetic observations and a dynamo model: a variational approach
Ching Pui Hung, Laurène Jouve, Allan Sacha Brun +2
We show how magnetic observations of the Sun can be used in conjunction with an axisymmetric flux-transport solar dynamo model in order to estimate the large-scale meridional circu…
Assimilating data into an αω dynamo model of the sun: A variational approach
Laurene Jouve, Allan Sacha Brun, Olivier Talagrand
We have developed a variational data assimilation technique for the Sun using a toy αΩ dynamo model. The purpose of this work is to apply modern data assimilation techniques to sol…
Four-dimensional variational assimilation in the unstable subspace (4DVar-AUS) and the optimal subspace dimension
Anna Trevisan, Massimo D'Isidoro, Olivier Talagrand
A key a priori information used in 4DVar is the knowledge of the system's evolution equations. In this paper we propose a method for taking full advantage of the knowledge of the s…