(Chair: Vadim Burwitz).
It aims at comparing atmospheric models in conjunction with analysis of high-resolution data.
Current members: A.Beardmore, V.Burwitz, J.Cottam, C.de Vries, T.Dotani, J.Drake, F.Haberl, J.Kaastra, H.Marshall, E.Miller, N.Schultz, S.Sembay.