On Thu, 19 Mar 2009, Bill Moninger wrote:
Hi Robb,any update on this? Is a new version of netcdf4-java available that will read the grib2 RUC format with its hybrid coordinates?
The netcdf4-java with the hybrid level fixes are available at: http://www.unidata.ucar.edu/software/netcdf-java/ let me know if you find any problems. Robb...
If not, can you give any hint on where it might be on your priority list and when this fix might be available?Thanks for any info you can provide. -Bill On 3/5/2009 5:54 PM, Robb Kambic wrote:On Thu, 5 Mar 2009, Bill Moninger wrote:Robb,I think its just a level number, because its a hybrid--depending on some parameters near the ground and other parameters higher up.looks like Bill thinks it's just a level number too-Bill On 3/5/2009 11:08 AM, Robb Kambic wrote:Bill,my fix has a flaw because I didn't have units to the hybrid level. What is the units of hybrid Pa? or whatRobb... On Wed, 4 Mar 2009, Bill Moninger wrote:Robb,I downloaded the (presumably) latest version of netcdf-java-4 from http://www.unidata.ucar.edu/software/netcdf-java/ and encountered the same problem: the grib2 reader is apparently not reading the hybrid dimension, as described below.-Bill On 3/2/2009 4:21 PM, Robb Kambic wrote:Bill,the problem has been resolved in netcdf-java-4 If you see any problems let us know.Robb... On Fri, 27 Feb 2009, Bill Moninger wrote:Hi Robb,...The issue with the operational RUC grib2 file (from NCEP, as you noticed) is that netcdf-java-4 doesn't seem to see the hybrid (vertical) level, although it *seems* to read the file fine. Please see the ncfile.toString() output below, and note that the variablevariable float Pressure(time=1, y=225, x=301);should have an additional dimension ('hybrid'), according to the wgrib2 dump.Sorry you got hit with two separate issues from us at the same time.Feel free to call me (202-497-6435) if you wish, and maybe we can get this resolved faster.-Bill-------- Original Message -------- Subject: Re: [netcdf-java] announce: stable release netcdf-java 4.0 Date: Thu, 26 Feb 2009 10:50:24 -0700 From: John Caron <address@hidden> To: Bill Moninger <address@hidden> CC: address@hiddenReferences: <address@hidden> <address@hidden>Hi Bill:Usually the problem is in tyhe tables. Can you send us a sample file it fails on? Our Grib expert,Robb Kambic, can have a look.Ill Ill fix the download problem, thanks for reporting. Bill Moninger wrote:Hi John, two items: a small one and a (maybe) big one. First, on page http://www.unidata.ucar.edu/downloads/netcdf/netcdf-java-4/index.jsp the link to netcdfAll-4.0.jar actually points to netcdf-4.0.jar.Second, the latest netcdfAll-4.0.jar does not read the RUC grib2 files correctly, at least as I'm using it. It doesn't find the hybrid dimension.Here's a snip from ncfile.toString(): ----------------------------------------------------ncfile is netcdf /public/data/grids/ruc/hyb_A252/grib2/0905622000003 {dimensions: time = 1; y = 225; x = 301; depth_below_surface = 5; depth_below_surface1 = 1; depth_below_surface2 = 2; depth_below_surface3 = 1; height_above_ground = 1; height_above_ground1 = 1; pressure_difference_layer = 1; bounds_dim = 2; variables: ... float Pressure(time=1, y=225, x=301); :units = "Pa"; :long_name = "Pressure @ hybrid"; :missing_value = -9999.0f; // float :grid_mapping = "Lambert_Conformal"; :GRIB_param_discipline = "Meteorological_products"; :GRIB_param_category = "Mass"; :GRIB_param_name = "Pressure"; :GRIB_param_id = 2, 0, 3, 0; // int :GRIB_product_definition_type = "Analysis/forecast at horizontal level/layer"; :GRIB_level_type = 105; // int -------------------------------------------------------- And here's some output from wgrib2 on the same file:wgrib2 /public/data/grids/ruc/hyb_A252/grib2/0905622000003|more1:0:d=2009022522:PRES:1 hybrid level:3 hour fcst: 2:70425:d=2009022522:PRES:2 hybrid level:3 hour fcst: 3:140762:d=2009022522:PRES:3 hybrid level:3 hour fcst: 4:211202:d=2009022522:PRES:4 hybrid level:3 hour fcst: 5:281657:d=2009022522:PRES:5 hybrid level:3 hour fcst: 6:351773:d=2009022522:PRES:6 hybrid level:3 hour fcst: 7:421147:d=2009022522:PRES:7 hybrid level:3 hour fcst: 8:489799:d=2009022522:PRES:8 hybrid level:3 hour fcst: 9:557601:d=2009022522:PRES:9 hybrid level:3 hour fcst: 10:624657:d=2009022522:PRES:10 hybrid level:3 hour fcst: 11:691379:d=2009022522:PRES:11 hybrid level:3 hour fcst: 12:758346:d=2009022522:PRES:12 hybrid level:3 hour fcst: 13:825473:d=2009022522:PRES:13 hybrid level:3 hour fcst: 14:892604:d=2009022522:PRES:14 hybrid level:3 hour fcst: 15:959705:d=2009022522:PRES:15 hybrid level:3 hour fcst: Is this a problem with our grib tables not having information about hybrid levels? -Bill On 2/19/2009 5:28 PM, John Caron wrote:Version 4.0 is now the the stable release for the Netcdf-Java library.It is available at http://www.unidata.ucar.edu/software/netcdf-java/ Version 4.0 continues to evolve with new features. However, a stable release means that we will keep future changes to the API backwards compatible to the public API at:http://www.unidata.ucar.edu/software/netcdf-java/v4.0/javadoc/index.html Version 2.2 is on "maintenence only" mode. We encourage you to switchto 4.0 to take advantage of many significant improvements and bug fixes. Please report problems, bugs and suggested improvements to address@hidden. Thanks!------------------------------------------------------------------------ There are API changes that you may see when you start using 4.0 withan application that has beenusing 2.2. These are mostly minor and in all cases have equivalent orimproved functionality in 4.0. Most of the changes are in implementation classes not often used by applications. More info is at: http://www.unidata.ucar.edu/software/netcdf-java/transition4.html The license for netcdf-java 4.0 has been changed from LGPL to the "MIT-style" license used by thenetCDF C library. This is intended to remove perceived barriers to useby some commercial companies.We anticipate continued contributions of bug fixes and enhancements bythe community. _______________________________________________ netcdf-java mailing list address@hidden For list information or to unsubscribe, visit:http://www.unidata.ucar.edu/mailing_lists/-- William R. Moninger http://www-frd.fsl.noaa.gov/~moninger/ NOAA / Earth Systems Research Laboratory / Global Systems Division 325 Broadway, R/GSD1 voice: 303-497-6435 Boulder, CO 80305 fax: 303-497-3329=============================================================================== Robb Kambic Unidata Program CenterSoftware Engineer III Univ. Corp for Atmospheric Research address@hidden WWW: http://www.unidata.ucar.edu/===============================================================================-- William R. Moninger http://www-frd.fsl.noaa.gov/~moninger/ NOAA / Earth Systems Research Laboratory / Global Systems Division 325 Broadway, R/GSD1 voice: 303-497-6435 Boulder, CO 80305 fax: 303-497-3329=============================================================================== Robb Kambic Unidata Program CenterSoftware Engineer III Univ. Corp for Atmospheric Research address@hidden WWW: http://www.unidata.ucar.edu/============================================================================================================================================================== Robb Kambic Unidata Program CenterSoftware Engineer III Univ. Corp for Atmospheric Research address@hidden WWW: http://www.unidata.ucar.edu/===============================================================================-- William R. Moninger http://www-frd.fsl.noaa.gov/~moninger/ NOAA / Earth Systems Research Laboratory / Global Systems Division 325 Broadway, R/GSD1 voice: 303-497-6435 Boulder, CO 80305 fax: 303-497-3329
=============================================================================== Robb Kambic Unidata Program Center Software Engineer III Univ. Corp for Atmospheric Research address@hidden WWW: http://www.unidata.ucar.edu/ ===============================================================================