Problem with x coordinate when using gsn_csm_contour

Hello

When I plot using
"plot = gsn_csm_contour(wks, species_value(:,:), res1 ) "
I got the following warning
"
warning:_NhlCreateSplineCoordApprox: Attempt to create spline approximation for X axis failed: consider adjusting trXTensionF value
warning:IrTransInitialize: error creating spline approximation for trXCoordPoints; defaulting to linear
"

The resulted figure (attached below) is also wrong
See:
http://www.caps.ou.edu/micronet/ARM/915rwpwindconC1/201108/files/ARMlidartime_height_WSPD_nightCenter_0.png
The x coordinate is supposed to be
(0) 0.8172222222222222
(1) 1.8175
(2) 2.8175
(3) 3.817777777777778
(4) 4.818055555555556
(5) 5.818333333333333
(6) 6.818611111111111
(7) 7.819166666666667
(8) 8.819166666666666
(9) 9.819444444444445
(10) 10.81972222222222
(11) 11.82
(12) 12.82027777777778
(13) 13.82027777777778
(14) 14.82
(15) 15.82
(16) 16.82
(17) 17.82083333333333
(18) 25.2144444444566
(19) 26.21277777774958
(20) 27.21277777774958
(21) 28.21305555553408
(22) 29.21305555553408
(23) 30.21305555553408
(24) 31.21333333331859
(25) 32.2138888888876
(26) 33.2138888888876
(27) 34.2141666666721
(28) 35.2141666666721
(29) 36.21472222224111
(30) 37.21500000002561
(31) 38.21500000002561
(32) 39.21500000002561
(33) 40.21472222224111
(34) 41.21472222224111
(35) 42.21500000002561
(36) 43.21527777775191
(37) 47.79083333333256

But ncl seemed to have 0-37 as x coordinate.

My script is at
http://www.caps.ou.edu/micronet/ARM/915rwpwindconC1/201108/files/plot_timeHeight_spd_ARM_HaloLidar_nice_saved_cdf_nightcenterCST.ncl

The two inputs are at
http://www.caps.ou.edu/micronet/ARM/915rwpwindconC1/201108/files/sgpLidarwind.c1.20110802.004902.cdf
http://www.caps.ou.edu/micronet/ARM/915rwpwindconC1/201108/files/sgpLidarwind.c1.20110803.011252.cdf

Thanks a lot
Xiaoming

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Received on Mon Nov 4 14:08:42 2013