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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.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.
Rich, When I create my own bundle for these data, I see essentially no difference between IDV and Python. See attached bundle and images. Best, Unidata IDV Support > > Yuan, > > So when you run my bundle, do you get the same result? > > -Rich > > > > When I ran the bundle, I got even worst result. My feeling is that those > missing vectors were likely associated with very small values. If you draw > wind barb, you will get every points. > > > Yuan > > On Thu, Jul 2, 2015 at 11:54 AM, Unidata IDV Support > > <address@hidden> wrote: > > >> We are running 5.1u2. Did you look at the bundle? All your > > >> questions are answered by the bundle, no? > > > > > > > > > Rich, > > > I have no problem getting the result similar to the python > > > output. See the attached. However, your bundle does look very strange, > > > almost like some kind of > > > filter working there. I will check and let you know. > > > > > > > > > Yuan > > >> > > >> On Wed, Jul 1, 2015 at 5:34 PM, Unidata IDV Support > > >> <address@hidden> wrote: > > >> > Rich, > > >> > > > >> > Here are a few comments: > > >> > > > >> > - Update your IDV to the latest version (5.1u2, this will yield no > > >> > improvement > > >> > probably, but it is usually best to work with the latest version of > > >> > the IDV). > > >> > > > >> > - For clarification, the flow vectors are supposed to be derived from > > >> > what? The > > >> > data contain two u and v fields (momentum versus stokes). Which one > > >> > are you > > >> > interested in? (I wonder if there is confusion/mismatches going on > > >> > here.) > > >> > > > >> > - Are you sure you are looking at the same geographic extents? The IDV > > >> > is > > >> > displayed roughly over NY harbor. I cannot tell where the Python plot > > >> > is > > >> > located. > > >> > > > >> > - I wonder if there are numerical errors going on. One of the Derived > > >> > Fields in > > >> > the IDV is "Speed (from U & V)". When you do a "Value Plot" of these > > >> > data, do > > >> > you get numbers you expect? > > >> > > > >> > - Experiment with the Flow Vector Control in the IDV Dashboard, > > >> > Displays Tab. > > >> > > > >> > Keep us up-to-date on your progress. > > >> > > > >> > Best, > > >> > > > >> > Unidata IDV Support > > >> > > > >> > > > >> > > > >> > > > >> >> IDV Gurus, > > >> >> > > >> >> We are struggling to get bottom velocity vectors displayed properly in > > >> >> IDV (5.0u2) for a Hurricane Sandy ocean simulation. > > >> >> > > >> >> The bottom velocity for 2012-10-30 00:00:00 should look like the 1st > > >> >> attached image (plotted in python using this notebook): > > >> >> http://nbviewer.ipython.org/gist/rsignell-usgs/a85e68a71933910a171a > > >> >> > > >> >> but instead it looks like the 2nd attached image. > > >> >> > > >> >> In the IDV image you can see that the flow at the coast is the wrong > > >> >> direction, and there are those strange black areas with no vectors. > > >> >> > > >> >> What is going on here? > > >> >> > > >> >> I'm attaching the bundle so you can recreate this yourself. > > >> >> -- > > >> >> Dr. Richard P. Signell (508) 457-2229 > > >> >> USGS, 384 Woods Hole Rd. > > >> >> Woods Hole, MA 02543-1598 > > >> >> > > >> >> > > >> > > > >> > > > >> > Ticket Details > > >> > =================== > > >> > Ticket ID: WHS-790529 > > >> > Department: Support IDV > > >> > Priority: Normal > > >> > Status: Closed > > >> > > > >> > > >> > > >> > > >> -- > > >> Dr. Richard P. Signell (508) 457-2229 > > >> USGS, 384 Woods Hole Rd. > > >> Woods Hole, MA 02543-1598 > > >> > > >> > > > > > > > > > Ticket Details > > > =================== > > > Ticket ID: WHS-790529 > > > Department: Support IDV > > > Priority: Normal > > > Status: Open > > > > > > > > -- > > Dr. Richard P. Signell (508) 457-2229 > > USGS, 384 Woods Hole Rd. > > Woods Hole, MA 02543-1598 > > > > Ticket Details =================== Ticket ID: WHS-790529 Department: Support IDV Priority: Normal Status: Closed
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