Gonzalo: I've added the following 3 files to the /pub/foster directory on hao.hao.ucar.edu: -rw-r--r-- 1 foster staff 584066 Feb 9 09:16 tejsmdx_utzp.ps -rw-r--r-- 1 foster staff 572728 Feb 9 09:16 tejspdx_utzp.ps -rw-r--r-- 1 foster staff 640140 Feb 9 09:16 tejsxdx_utzp.ps Each file has 8 frames, all with ut on x-axis and log p on y-axis: frame 1: tn at lat,lon -82.5,30. frame 2: tn at lat,lon -82.5,120. frame 3: tn at lat,lon -82.5,-150. frame 4: tn at lat,lon -82.5,-60. frame 5: vn at lat,lon -82.5,30. frame 6: vn at lat,lon -82.5,120. frame 7: vn at lat,lon -82.5,-150. frame 8: vn at lat,lon -82.5,-60. As you know, Ray's model uses the -180 to +180 longitude scale, so your request for 210 degrees is -150 on the plots, and 300 deg is -60. The top 2 south latitude grid points in the model are -82.5 and -87.5. I more or less arbitrarilly used -82.5, since I'm not doing interpolation between grid points. Note, however, that because this is so high in latitude, there won't be much meaningful difference around the longitudes for scalar fields like tn. Also, remember that the vn convention is +N -S, so a physically constant wind will show a sign change across the pole. Thus, the vn plots which are 180 across from each other (30 and -150 or 120 and -60) will be approximate mirror images of each other in terms of sign. As you go around the circle vn (and un) will follow a sine curve to describe a physically constant wind. I'm sure you are aware of all this -- I'm reviewing it partly for my own clarification. I would love to see N.Z. some day. I've been thinking about a temporary house swap with my friend Peter Koons in Otago, but family matters and expense complicate the issue, as you can imagine. --Ben