grib file no vector

[PhMakowski]

Hi,
I have a grib file :
cdo showattribute R_NOSYCA-CHAMPMTO-arp_0207_06UTC#NosicaHeader.grb z: standard_name = "geopotential" long_name = "Geopotential" units = "m**2 s**-2" missing_value = -9e+33 v: standard_name = "northward_wind" long_name = "V component of wind" units = "m s**-1" missing_value = -9e+33 t: standard_name = "air_temperature" long_name = "Temperature" units = "K" missing_value = -9e+33 u: standard_name = "eastward_wind" long_name = "U component of wind" units = "m s**-1" missing_value = -9e+33 cdo showattribute: Processed 4 variables [0.08s 43MB].

ncWMS Server as Variable ID set :
Temperature_isobaric, Geopotential_isobaric, u-component_of_wind_isobaric, v-component_of_wind_isobaric

How can I get the wind vector ?
if I use : LAYERS=u-component_of_wind_isobaric%3Av-component_of_wind_isobaric-group&STYLES=vector_wind_barbs
I get <ServiceException> The variable u-component_of_wind_isobaric:v-component_of_wind_isobaric-group is not available </ServiceException>

[guygriffiths]

Sorry for the delayed response on this. Do you have a copy of the file you could share?

[PhMakowski]

R_NOSYCA-CHAMPMTO-arp_0207_06UTC#NosicaHeader.zip

here the file, thanks

[guygriffiths]

Thanks for that. There were a couple of issues. Firstly, this has brought to light a bug in the upgrade to the newest Apache Velocity version, which I've fixed. However, the main reason it wasn't working was that the standard name format wasn't recognised properly (it expects "u-wind component" rather than "u-component of wind").

I've fixed both of those issues in a snapshot version, available here: https://github.com/Reading-eScience-Centre/ncwms/releases/tag/ncwms-2.5.3-snapshot. If you could try it and give me some feedback, I should be able to do a full release soon.

[PhMakowski]

thanks, unfortunately, I can't test it for now
I have a error due to java version it seems.
java.lang.UnsupportedClassVersionError: uk/ac/rdg/resc/edal/wms/WmsContextListener has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0 (unable to load class uk.ac.rdg.resc.edal.wms.WmsContextListener)

[guygriffiths]

Ah yes, ncWMS2 has been using Java 11 since version 2.5.0. It looks like you're still on Java 8.

[PhMakowski]

unfortunately I can't use Java 11 in my context.

[oiukaa]

I've fixed both of those issues in a snapshot version, available here: https://github.com/Reading-eScience-Centre/ncwms/releases/tag/ncwms-2.5.3-snapshot. If you could try it and give me some feedback, I should be able to do a full release soon.

@guygriffiths I tested ncwms-2.5.3-snapshot and it recognizes [u|v] component of wind correctly.

For the record / from "bookkeeping" point of view: It seems that fix for this issue is this commit Reading-eScience-Centre/edal-java@6e5ac1d at edal-java repository's develop branch.

btw. Thank your for the this great project (ncws)