good u and v, vector plot empty

Hi, all -

Can anyone help with vector plots?

I'm trying to plot wind vectors for QuikSCAT ocean wind data but getting
empty plots.

The scalar plots look perfect for both U and V but when switching the
function from *gsn_csm_contour_map* to *gsn_csm_vector_map* I get an empty
plot.

The variables U and V look like this and a scalar plot for U is attached. Is
the vector problem occurring due to the missing values in the swath gaps?

*Variable: v*
*Type: float*
*Total Size: 1974784 bytes*
* 493696 values*
*Number of Dimensions: 2*
*Dimensions and sizes: [Wind_Vector_Cell_Row | 3248] x [Wind_Vector_Cell |
152]*
*Coordinates: *
*Number Of Attributes: 11*
* valid_range : ( 0, 50 )*
* hdf_name : wind_speed_selection*
* calibrated_nt : 1*
* add_offset_err : 0*
* scale_factor_err : 0*
* SDS_type : Single*
* units : m/s*
* long_name : meridional wind selection*
* _FillValue : 1e+20*
* lon2d : <ARRAY of 493696 elements>*
* lat2d : <ARRAY of 493696 elements>*

The resources set on my script (both for scalar and vector plots) are:

*res = True*
* *
* res@trGridType = "TriangularMesh"*
* *
* res@pmLabelBarDisplayMode = "Always"*
* *
* res@lbOrientation = "Vertical"*
* *
* res@cnFillMode = "RasterFill" *
* res@cnLineLabelsOn = False*
* res@cnLinesOn = False*
* res@cnFillOn = True*
* *
* res@gsnAddCyclic = False*
* res@gsnSpreadColors = True*
* res@gsnMaximize = True*
* *
* res@mpLimitMode = "Corners"*
* res@mpLeftCornerLatF = 59.35619*
* res@mpLeftCornerLonF = 171.8014*
* res@mpRightCornerLatF = 67.80419*
* res@mpRightCornerLonF = -101.7952+360*
* res@mpCenterLatF = 90*
* res@mpCenterLonF = -180*
* *
* res@vcRefAnnoOrthogonalPosF = -1.0*
* res@vcRefMagnitudeF = 5.0*
* res@vcRefLengthF = 0.06*
* res@vcGlyphStyle = "CurlyVector"*
* res@vcMinDistanceF = 0.017*
* res@vcMinFracLengthF = 1.0*

Any ideas?

Thank you very much!
Paula

-- 
*Paula Doubrawa Moreira**
*Graduate Student - Research Assistant
International Arctic Research Center
University of Alaska Fairbanks

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