491 citations · 1.9k across the 39 of their papers we have counts for
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Decorrelation Times of Photospheric Fields and Flows
Brian T. Welsch, Kanya Kusano, Tetsuya T. Yamamoto +1
We use autocorrelation to investigate evolution in flow fields inferred by applying Fourier Local Correlation Tracking (FLCT) to a sequence of high-resolution (0.3 \arcsec), high-c…
Lagrangian coherent structures in photospheric flows and their implications for coronal magnetic structure
A. R. Yeates, G. Hornig, B. T. Welsch
Aims. We show how the build-up of magnetic gradients in the Sun's corona may be inferred directly from photospheric velocity data. This enables computation of magnetic connectivity…
Photospheric Magnetic Evolution in the WHI Active Regions
B. T. Welsch, S. Christe, J. M. McTiernan
Sequences of line-of-sight (LOS) magnetograms recorded by the Michelson-Doppler Imager are used to quantitatively characterize photospheric magnetic structure and evolution in thre…
Can we Determine Electric Fields and Poynting Fluxes from Vector Magnetograms and Doppler Measurements?
George H. Fisher, Brian T. Welsch, William P. Abbett
The availability of vector magnetogram sequences with sufficient accuracy and cadence to estimate the time derivative of the magnetic field allows us to use Faraday's law to find a…