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Hi Dom, re: > I've downloaded the IDV application and started to run through some of > the introduction. As discussed in our conversation last Friday it would > be great to see what the Hurricane data looks like, please send me the > links to download the relevant bundles. Also, some pointers on how best > to view the bundles would be much appreciated. One can get to lots of bundles as follows: Dashboard > Data Choosers > Catalogs > Unidata's RAMADDA Server Example bundles can be found in a number of the folders in the last link. In particular, I would check out: IDV Community Resources > Bundles You should also visit: Case Studies > Hurricanes Hurricane Irene > Model Output and Hurricane Irene > Bundles both have IDV bundles that should be of interest. Based on one of the comments you made during our conference call, I would also like to suggest you check out the example bundles in: Projects > Africa Initiative > Displays > IDV Bundles In particular, please try the following: - load the Global Composite Thermal IR over NASA Blue Marble - 0.5 degree GFS Total Precipitation - Current GFS Run You can, of course, run these separately/independently, but you should also check out loading one and then adding the second to the first: - select Global Composite Thermal IR over NASA Blue Marble and make sure that Remove all displays & data is checked in the Open bundle dialog before clicking OK - after that bundle has loaded (and you have played with it some), go back to the Data Choosers tab in the Dashboard and select the 0.5 degree GFS Total Precipitation - Current GFS Run bundle. This time _uncheck_ the Remove all displays & data checkbox and then click OK This will add the display of GFS (Global Forecast System) total precipitable water to the existing loop of global composite thermal IR (nominally 10.7 um) satellite imagery. The best part of the composite display is when you change the enhancement for the model output to match that for the satellite imagery. After the globally composited IR images are loaded: - right click on the color bar for the IR images in the Legend panel - select Edit Color Table - from the Color Table Editor widget: - set/leave the Category to Satellite - select Save As from the File dropdown - leave the Color table name as IRLONG Transparent - click OK - click OK to exit the Color Table Editor dialog Now, go ahead and load the 0.5 degree GFS Total Precipitation - Current GFS Run bundle specifying that you either want to add the display to the existing display (i.e., uncheck Remove all displays & data) or create a new display (i.e., check Remove all displays & data). After the precipitable water bundle is loaded, change its color table to IRLONG Transparent: - right click on color bar for the precipitable water field in the Legend portion of the Globe View - One Pane display - select Satellite -> IRLONG Transparent as the enhancement - uncheck the non-blue marble background image - turn on animation The display of global precipitable water in this way is to me a great way to demonstrate the fluid nature of the atmosphere (or, at least, the GFS view of the atmosphere). re: > I've received a 10 GB model output from a researcher at the British > Antarctic Survey. It shows various current components moving in the > Southern Ocean over a ten year period. The scientist has converted it > into netCDF format himself, but IDV cannot find any grid points. It seems likely that the conversion has some problems. Questions: - what is the format of the original data? If it is GRIB or GRIB2, it would be better to leave it in its original format. - assuming that the data is in GRIB or GRIB2, are the parameter definitions standard, or did the researcher use custom GRIB tables? If standards were used, then the IDV (and its THREDDS Data Server back end components) should have no problem with the data. If custom GRIB tables were used, those will need to be gotten so that the parameter(s) can be properly understood. re: > I'm > going to confirm that the researcher is happy for you to view the data > (it's brand new data), and if he is, do you think you could figure out > how to get IDV to view the data? It would be best if a subset of the 10 GB file could be made available for testing. Pulling over a 10 GB file might be arduous. Cheers, Tom -- **************************************************************************** Unidata User Support UCAR Unidata Program (303) 497-8642 P.O. Box 3000 address@hidden Boulder, CO 80307 ---------------------------------------------------------------------------- Unidata HomePage http://www.unidata.ucar.edu **************************************************************************** Ticket Details =================== Ticket ID: IYO-548353 Department: Support IDV Priority: Normal Status: Closed