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>From: address@hidden (Juliana Lo) >Organization: . >Keywords: 199906022054.OAA27809 > > >Hi, > >I am using gpmap program to produce gif images from GOES >data sets. I'm just wondering if it is possible to >plot a overaly of tropical storm track marking positions >with symbols. Thanks! > >Juliana Lo >address@hidden > I don't know if you are affiliated with University of Hawaii since you do not identify yourself, however, if you are using the Unidata Gempak distribution at UH, then gpmap can plot tropical storm, and tropical cyclone symbols using marker numbers 22 and 23 respectively. Using the markers, you can plot the positions of storms 2 ways. The first is to create a station table so that you can use the STNPLT variable in gpmap etc. eg: http://www.unidata.ucar.edu/glimpse/gempak/2463, or you can create a surface file with locations representing the storm position, and other variables of interest such as central pressure, wind speed etc, and then use MARKER in sfmap. By using a surface file, you can specify the marker for a given condition, eg: SFPARM=sped>32 MARKER=2/23 etc. http://www.unidata.ucar.edu/glimpse/gempak/2527 http://www.unidata.ucar.edu/staff/chiz/storm/tropic/epacific.gif The tropical storm/cyclone marker symbols are additions I added to our distribution, so if you do not have the Unidata distribution, the marker numbers I mentioned above will not be applicable. Steve Chiswell