tokens: The authors would like to thank the anonymous referee for his/her fruitful comments, R. Lecocguen, D. Crussaire and the team at the MSDP for acquiring the H observations. We thank G. Aulanier for fruitful discussions and the sketch of a “tornado”, which has been drawn by Sylvain Cnudde. We deeply thank L. Fletcher for giving many comments on the manuscript to improve its clarity.P.J.L. acknowledges support from an STFC Research Studentship ST/K502005/1. N.L. acknowledges support from STFC grant ST/L000741/1. L.O. would like to acknowledge support by NASA Cooperative Agreement grant NNG11PL10A to CUA. The AIA data are provided courtesy of NASA/SDO and the AIA science team.
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