[las_users] problems with curvilinear data: plot_var[d=1] unknown?

[Remon Sadikni <remon.sadikni@xxxxxxx>]

We just wanted to add curvilinear Sea Ice Concentration Datasets and ran 
into some problems (actually I cannot offer you an url to the LAS 
because we have only a developing environment which is not online):

1. I wanted to visualize one polarstereographic dataset via an OPeNDAP 
access generated by THREDDS but the following error occurred:

STOP -script mode, ERROR RUNNING SCRIPT

**netCDF error

NetCDF: DAP server error (OPeNDAP/netCDF Error code -70)

Data set: http://...

SHADE/HLIM=-180:179.4564/LEVELS=(1,100,1)/PALETTE=rainbow/HLIM=-180:179.456407695/VLIM=31.039:89.94735625/MODULO/TRIM/TITLE="concentration 
of sea ice (%) Native Curvilinear Plot"/SET plot_var[d=1] , xcoord, ycoord

Command file, command group, or REPEAT execution aborted


In ferret I get the following error when executing the shade command 
from above:

**ERROR: variable unknown or not in data set: PLOT_VAR[D=1]

The strange thing is that I can visualize the same dataset in LAS via 
direct (file) access in the file system without problems. And I can 
visualize other projections of the same data via OPeNDAP without 
problems. Maybe you have a hint for me?

2. The ice concentration data are on a curvilinear grid. I managed to 
visualize it by reading the online documentation. If I try to zoom in, 
there are some areas which are not correctly plotted: they are bands 
that are just empty (the more you get to the margin of the plot). The 
LAS-documentation told me to use a map file which I should generate in 
ferret, but nothing changes. Maybe you also have a tipp for that problem?

3. Can I plot curvilinear data via LAS in its original projection?

Thank you very much!

Regards,
Remon

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 Remon Sadikni

 University of Hamburg / KlimaCampus Hamburg
 Center for Integrated Climate System Analysis and Prediction - CliSAP
 Grindelberg 5 / D-20144 Hamburg / Germany

 phone: +49-40-42838-7581
 email: remon.sadikni@xxxxxxx
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