> Good Morning Yuan, > Just checking in on the progress behind using MADIS Cooperative Agency > Profiler network data in the IDV. Specifically: > 1) When do you project the profiler station plots will be available? > > 2) Has there been any progress on a better y-axis display as you mentioned in > a previous email? This was in reference to the option that allows the most > recent data to be located on the right side of the chart as opposed to the > left. When clicked, the height expands making the data appear to shrink into > a very small vertical layer. > > 3) Have you had a chance to look into the vertical extent issue (see below > for reference)? > > 4) I noticed that the wind barbs do not appear to not match the input data's > magnitude. See attached IDV-generated and MADIS-generated charts for > time/height wind barb plots on 9/26/2007 at 12-18 UTC. Note that IDV's > highest color range has been changed to 50 kts (red) and the chart shows ~30 > kts (yellow) as highest wind speeds for this time period. However, the > problem lies in the wind barb icon itself - the yellow wind barbs have a 50 > kt-flag and extra barb indicating wind speeds of ~60 kts instead. Double > checking the data using MADIS-generated charts shows that the IDV color > scheme is correct and the IDV wind barb icons are wrong. Can this be fixed? > > 5) Is adding the option to choose the data's QC level still a consideration? > > Laura Hi Laura, I will put this support ticket on hold status, and promise to check it after the training workshop. Yuan > > >>> "Unidata IDV Support" <address@hidden> 9/2/2010 6:41 PM >>> > > > Yuan, > > > Here's some additional feedback on the new features. > > > 1) Image capture: Thanks for adding the capture feature in the > > > time/height profiler display. It works very well when choosing "View" in > > > the Capture What options. However, the other two options of "View & > > > Legend" and "Full Window" prompt an error and no image can be captured. > > > > Yes, we knew this bug, and we were working on it. > > The new 2.9u1 release should have fixed this. > > > Yuan > > > > > > 2) Time/Height chart: I took a look at the y-axis fix that you've added > > > and I think there may be a bug. The attachment called > > > TimeHt_STWMA_latestL.jpg shows that loading the local profiler netCDF > > > files creates a nice Time/Height chart, however; the display changed > > > after I toggled the "Latest data on left" selection. The y-axis suddenly > > > increased its vertical extent as shown by TimeHt_STWMA_latestR.jpg. > > > > I need to find a better design for the y-axis. > > > > > > 3) To magnify the vertical extent of the profiler data (See #3 in last > > > email), I used the vertical scale icon as you suggested. Thank you for > > > pointing this out, it should work nicely. One item to note is that one of > > > the profilers (PNRMD) is a high elevation site that is located in > > > Frostburg, MD with an elevation of 763 meters. Using the vertical scale > > > icon, it is more apparent that the data point closest to the surface is > > > also magnified. This can be a problem because the profiler's data look to > > > originate in PA instead of MD. The other 2 attachments illustrate this: > > > 3D_PNRMD_VertScaleMax-6000m.jpg (actual data origin) and > > > 3D_PNRMD_VertScaleMax-500m.jpg (station looks to be located in PA). Is it > > > possible to make the data point closest to the surface maintain its > > > original fixed height while the vertical scale adjustment is being used? > > > > > I will check, this maybe a 3D illusion. When the station plot is available, > > this 3D illusion will be less concern. > > > > > > Yuan > > > Thanks, > > > Laura > > > > > > >>> "Unidata IDV Support" <address@hidden> 8/11/2010 6:34 PM >>> > > > > Hi Yuan, > > > > I have been working with the CAP profiler winds display using local > > > > netCDF files. First, I would like to say that I can load the files with > > > > ease and have successfully used both the time/height display and the 3D > > > > plot. Thank you for your extensive work on this. I do have a few > > > > questions and they are listed below. > > > > > > > > 1) I see that the time/height and 3D plots are available. Do you > > > > anticipate adding the profiler station plot also? > > > > > > > Well, this is a easier one. I will add it soon. > > > > > > > 2) Time/height display: Is there a way to capture an image of the > > > > time/height display control window? Also, is the y-axis adjustable so > > > > that it can be changed to above ground level (AGL) labeled every 500 > > > > meters as opposed to MSL labeled every 2000 meters? This would account > > > > for the lower heights measured by CAP boundary layer profilers compared > > > > to NOAA profilers that can reach up to tropopause. > > > > > > > No, you can not capture an image, but I will add this feature soon. If > > > you download the nightly build tomorrow, the y-axis label is better now, > > > may not be what you wanted, let me know if you like it or not. > > > > > > > 3) Most (if not all) of the CAP profiler network measures winds in the > > > > boundary layer (up to approximately 4 km AGL) whereas the NPN measures > > > > up to around 9-16 km AGL, depending on its vertical sampling mode. This > > > > height difference makes for a much different looking 3D plot with CAP > > > > data - the 3D plot looks a bit cramped, vertically. While this display > > > > is draw to scale and accurate, is there a way to artificially magnify > > > > the height of the CAP profiler data so that the vertical extent is > > > > expanded? Perhaps a drop down menu in the display settings that > > > > magnifies the height 2x, 3x, etc? > > > > > > If you want to adjust the vertical scale in the map view, click the > > > vertical scale icon on the left of the window, and change the value, it > > > will give you the same effect as magnifies the height. > > > > > > > > My reasoning behind this is that I hope to be able to create a 3D plot > > > > showing 3 profilers in 1 map view: a MD profiler (BLTMD), NJ profiler > > > > (RUTNJ), and NC profiler (CHANC). At the present time, without > > > > magnification of the data's vertical extent, it would be extremely > > > > difficult to see the wind barbs/colors for each profiler with the level > > > > of zoom required to get all 3 profilers in the same map view. > > > > > > > > 4) My previous question about plotting different QC levels of the data > > > > may be better illustrated by viewing the MADIS CAP Profiler Real-Time > > > > Data Display (http://madis-data.noaa.gov/cap/profiler.jsp?options=full) > > > > > > > > Note that on this site, you can select an option in the drop down QC > > > > menu such as "Pass Level 1" and "Applied and Pass Level 2". These > > > > options will filter the data based on QC flags designated by MADIS. The > > > > flags are also in the netCDF files. You can see this by selecting a > > > > local netCDF file I've uploaded in Data Choosers and select "I'm > > > > feeling lucky" as the data source type instead of "CDM netCDF profiler > > > > files". Then click 3D grid and you will see the IDV lists a few QC flag > > > > fields. More information on the applied QC is here > > > > (http://madis.noaa.gov/madis_sfc_qc.html). However, this might be a > > > > better question for the MADIS contacts I sent earlier today. They would > > > > likely be able to explain the file setup much more easily. Ideally I > > > > would want an option to select and plot the best available data > > > > (Applied and Pass Level 2). > > > > > > > > > > This is interesting, I will put it in our to do list. > > > > > > > Let me know if you need more clarification. > > > > > > > > Laura > > > > > > > > > > > > > > > > > > Ticket Details > > > =================== > > > Ticket ID: PNW-510251 > > > Department: Support IDV > > > Priority: Normal > > > Status: Closed > > > > > > > > > > > > > > Ticket Details > =================== > Ticket ID: PNW-510251 > Department: Support IDV > Priority: Normal > Status: Closed > > > Ticket Details =================== Ticket ID: PNW-510251 Department: Support IDV Priority: Normal Status: On Hold
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