README::: The fits file contains the vertical velocity on the tau=0.01 level for the the sunspot simulation described further in Rempel 2011, ApJ 740, 15 (see e.g. Figure 1). We have applied an MTF=exp(-(W*k)^2) with W=0.7 Mm and k in units of rad/Mm and then binned the data 4x4 in (x,y). The horizontal grid spacing in the final result is 4x96 km. The cadence is one minute. For questions about the simulation contact Matthias Rempel (rempel@ucar.edu) For questions about the data preparation contact Aaron Birch (aaronb@cora.nwra.com). See toplevel Readme for further information and acknowledgments.