<div class="gmail_quote">All,<br><br>I'm having a problem using the GrADS Data Server (GrADS-DODS) from NCEP (NOMADS). I am using the sdfopen command to access the dataset (RTMA 2.5km). When I run the script locally on my Ubuntu machine, everything works great! However, when I transfered the script to my web host I get an error.<br>
<br>Here's the line from my script:<br>'sdfopen <a href="http://nomads.ncep.noaa.gov:9090/dods/rtma2p5/rtma2p5%27dapdate%27/rtma2p5_anl_%27currhr%27z" target="_blank">http://nomads.ncep.noaa.gov:9090/dods/rtma2p5/rtma2p5'dapdate'/rtma2p5_anl_'currhr'z</a>'<br>
(where dapdate=YYYYMMDD and currhr=HH - yes, I've double checked to make sure the data exists.)<br><br>Here's the output:<br>...<br>Running in Batch mode<br>No hardcopy metafile open<br>All files closed; all defined objects released;<br>
All GrADS attributes have been reinitialized<br>Error: nc_open failed to open file <a href="http://nomads.ncep.noaa.gov:9090/dods/rtma2p5/rtma2p520110913/rtma2p5_anl_23z" target="_blank">http://nomads.ncep.noaa.gov:9090/dods/rtma2p5/rtma2p520110913/rtma2p5_anl_23z</a><br>
NetCDF: I/O failure<br>gadsdf: Couldn't ingest SDF metadata.<br>...<br><br>I've tried searching the web and this (excellent) mailing list assistance but I can't seem to figure out what's going wrong. I suspect it may have something to do with my web host. (I use Bluehost- I know they're a somewhat subpar host, but I'm just a student experimenting with different things!) <br>
<br>Here's what uname -a gives on my web server:<br>Linux <a href="http://box566.bluehost.com" target="_blank">box566.bluehost.com</a> 2.6.32-46.1.BHsmp #1 SMP Tue Sep 6 12:18:02 MDT 2011 x86_64 x86_64 x86_64 GNU/Linux<br>
<br>If there's other tests I can run to probe the issue, let me know. Also, is this the best way to use the GrADS-DODS server? Should I just download the grib2 locally instead?<br>
<br>I was planning to download the grib2 locally, but when I discovered the GrADS-DODS server I found out that this might not be necessary. I plan to run this script hourly, so please advise as to which method would be best.<br>
<br>Thanks a lot!<br><br>-Joe Moore <br><br>The script in question:<br><a href="http://pastebin.com/MDQ9vk3y" target="_blank">http://pastebin.com/MDQ9vk3y</a><br><br>My GrADS config on my web server:<br>Config: v2.0.a9.oga.1 little-endian readline printim grib2 netcdf hdf4-sds hdf5 opendap-grids,stn athena geotiff shapefile<br>
Grid Analysis and Display System (GrADS) Version 2.0.a9.oga.1<br>Copyright (c) 1988-2010 by Brian Doty and the<br>Institute for Global Environment and Society (IGES) <br>This program is distributed WITHOUT ANY WARRANTY <br>
See file COPYRIGHT for more information. <br><br>Built Mon Oct 4 14:16:26 EDT 2010 for i686-pc-linux-gnu<br><br>This version of GrADS has been configured with the following options:<br> o Built on a LITTLE ENDIAN machine<br>
o Athena Widget GUI ENABLED<br> o Command line editing ENABLED <br> <a href="http://tiswww.case.edu/php/chet/readline/rltop.html" target="_blank">http://tiswww.case.edu/php/chet/readline/rltop.html</a> <br> o printim command for image output ENABLED <br>
<a href="http://www.zlib.net" target="_blank">http://www.zlib.net</a> <br> <a href="http://www.libpng.org/pub/png/libpng.html" target="_blank">http://www.libpng.org/pub/png/libpng.html</a> <br> <a href="http://www.libgd.org/Main_Page" target="_blank">http://www.libgd.org/Main_Page</a> <br>
o GRIB2 interface ENABLED <br> <a href="http://www.ijg.org" target="_blank">http://www.ijg.org</a> <br> <a href="http://www.ece.uvic.ca/%7Emdadams/jasper" target="_blank">http://www.ece.uvic.ca/~mdadams/jasper</a> <br>
<a href="http://www.nco.ncep.noaa.gov/pmb/codes/GRIB2" target="_blank">http://www.nco.ncep.noaa.gov/pmb/codes/GRIB2</a> <br>
g2clib-1.1.8 <br> o NetCDF interface ENABLED <br> <a href="http://www.unidata.ucar.edu/software/netcdf" target="_blank">http://www.unidata.ucar.edu/software/netcdf</a> <br> netcdf 4.1.1 of Jul 10 2010 23:36:25 $ <br>
o OPeNDAP gridded data interface ENABLED<br>
o OPeNDAP station data interface ENABLED<br> <a href="http://iges.org/grads/gadoc/supplibs.html" target="_blank">http://iges.org/grads/gadoc/supplibs.html</a> <br> libgadap 2.0.oga.1 <br> o HDF4 and HDF5 interfaces ENABLED <br>
<a href="http://hdfgroup.org" target="_blank">http://hdfgroup.org</a> <br> HDF 4.2r3 <br> HDF5 1.8.4 <br> o GeoTIFF and KML/TIFF output ENABLED<br> <a href="http://www.libtiff.org" target="_blank">http://www.libtiff.org</a> <br>
<a href="http://geotiff.osgeo.org" target="_blank">http://geotiff.osgeo.org</a> <br>
o KML contour output ENABLED<br> o Shapefile interface ENABLED<br> <a href="http://shapelib.maptools.org" target="_blank">http://shapelib.maptools.org</a> <br>
</div><br>