NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
Hi Dave- I just have to butt in. > Two questions about IDV capabilities: > > (1) Is it possible to color streamlines based on the wind speed? (I don't see > any obvious way to do this, and no reference to it in the User's Guide.) Use the Grids->One value colored by another formula and select the Flow Displays->Streamline Plan View display. For the Data Field, select the True Wind vectors and for the Color field, select Speed (from u and v). > (2) Is it possible to plot wind barbs or wind vectors on an isosurface of > another quantity other than pressure, such as potential temperature (an > isentropic surface)? To do so seems as if it would require knowing the height > field of the isosurface, which defines the topography on which the winds > would be plotted. The IDV currently can plot wind vectors on isobaric > surfaces because the geopotential heights of such surfaces are available in > forecast model data files, but if the IDV calculates the height field for > other kinds of isosurfaces as a necessary step toward creating an isosurface > plot, then couldn't winds be plotted on that topography, too? This is not possible at present. It is on the list of things to do. Don Murray Ticket Details =================== Ticket ID: MUS-211252 Department: Support IDV Priority: Normal Status: Open