[Met_help] Re: Another question: undefined values
John Halley Gotway
johnhg at rap.ucar.edu
Wed Oct 22 10:32:46 MDT 2008
Estella,
Use "-9999" for missing or bad data.
Please take a look at the output of the ASCII2NC test script in METv1.1/out/ascii2nc/sample_ascii.nc.
Doing an 'ncdump' on that file, you should see these lines in the output:
hdr_arr:_fill_value = -9999.f ;
obs_arr:_fill_value = -9999.f ;
This indicates that a value of "-9999" stands for missing or fill data.
Also, just a reminder... be sure to check the known issues page on the MET website for postings of the latest bugs:
http://www.dtcenter.org/met/users/support/known_issues/METv1.1/index.php
You can download fixes from there for bugs that have been found.
Thanks,
John
Estela A. Collini wrote:
> Hello John
>
> I have another question about undefined values in the observation text
> file.
>
> I attach a sounding from one of our met stations and we are not sure how
> to code the undefined values (from pressure level 28.8 up). For other
> applications we currently use -9.9, -99.9, etc.
>
> Thank you very much
>
> Estela
>
>
>
> 87576 SAEZ Ezeiza Aero Observations at 12Z 03 Oct 2008
> -----------------------------------------------------------------------------
>
> PRES HGHT TEMP DWPT RELH MIXR DRCT SKNT THTA THTE
> THTV
> hPa m C C % g/kg deg knot K
> K K
> -----------------------------------------------------------------------------
>
> 1011.0 20 14.8 10.8 77 8.10 100 2 287.1 309.9
> 288.4
> 1005.0 68 13.4 6.4 63 6.03 105 4 286.1 303.3
> 287.2
> 1000.0 109 15.6 6.6 55 6.15 110 5 288.8 306.4
> 289.8
> 996.0 143 16.8 4.8 45 5.44 113 5 290.3 306.1
> 291.2
> 927.0 750 13.7 -7.0 23 2.44 170 11 293.1 300.6
> 293.6
> 925.0 768 13.6 -7.4 23 2.38 170 11 293.2 300.5
> 293.6
> 894.0 1054 12.0 -14.5 14 1.40 185 16 294.4 298.9
> 294.7
> 886.0 1130 11.6 -16.4 13 1.20 188 15 294.8 298.7
> 295.0
> 871.0 1272 10.7 -15.2 15 1.35 195 13 295.3 299.6
> 295.5
> 850.0 1475 9.4 -13.6 18 1.58 240 11 296.0 301.0
> 296.3
> 843.0 1543 9.2 -11.8 21 1.85 240 11 296.5 302.3
> 296.8
> 800.0 1974 5.4 -3.6 52 3.68 240 8 296.9 308.1
> 297.6
> 752.0 2476 1.6 -25.4 11 0.65 240 5 298.1 300.3
> 298.2
> 750.0 2497 1.4 -24.3 13 0.72 240 5 298.1 300.5
> 298.2
> 727.0 2746 -0.6 -11.0 45 2.28 260 11 298.6 305.8
> 299.0
> 719.0 2835 -1.3 -6.3 69 3.34 271 14 298.7 309.0
> 299.3
> 712.0 2913 -1.6 -8.8 58 2.78 280 17 299.2 307.9
> 299.7
> 700.0 3048 -2.1 -13.1 43 2.00 275 21 300.1 306.5
> 300.5
> 689.0 3174 -2.9 -16.9 33 1.49 283 26 300.6 305.4
> 300.9
> 687.0 3197 -3.1 -16.1 36 1.59 285 27 300.6 305.8
> 300.9
> 664.0 3466 -5.5 -6.9 90 3.45 289 25 300.9 311.6
> 301.5
> 632.0 3852 -8.5 -9.6 92 2.95 295 21 301.7 311.0
> 302.2
> 622.0 3976 -9.5 -10.4 93 2.80 296 24 302.0 310.8
> 302.5
> 610.0 4127 -10.5 -14.2 74 2.10 298 27 302.5 309.2
> 302.9
> 602.0 4229 -9.9 -17.9 52 1.56 299 29 304.3 309.5
> 304.6
> 591.0 4371 -10.9 -17.9 56 1.59 300 32 304.8 310.0
> 305.1
> 578.0 4542 -11.1 -25.1 31 0.87 302 36 306.5 309.5
> 306.6
> 519.0 5358 -17.0 -25.8 46 0.90 310 54 308.9 312.0
> 309.1
> 500.0 5640 -19.1 -26.1 54 0.91 300 54 309.7 312.9
> 309.9
> 497.0 5684 -19.4 -26.4 54 0.90 300 55 309.8 312.9
> 310.0
> 465.0 6174 -23.3 -29.3 58 0.73 291 61 310.9 313.5
> 311.1
> 447.0 6459 -24.8 -32.7 48 0.55 285 65 312.6 314.6
> 312.7
> 416.0 6977 -27.6 -38.8 34 0.32 285 47 315.5 316.7
> 315.6
> 400.0 7260 -29.1 -42.1 27 0.24 290 55 317.1 318.0
> 317.1
> 315.0 8904 -43.9 -49.5 54 0.13 270 64 318.9 319.5
> 318.9
> 300.0 9240 -46.9 -51.0 63 0.12 275 62 319.1 319.6
> 319.2
> 275.0 9803 -51.4 -56.9 52 0.06 285 79 320.7 320.9
> 320.7
> 250.0 10420 -56.3 -63.3 41 0.03 285 82 322.2 322.4
> 322.2
> 245.0 10548 -57.3 -63.3 46 0.03 285 83 322.6 322.8
> 322.6
> 225.0 11093 -53.7 -70.5 11 0.01 281 96 336.1 336.1
> 336.1
> 221.0 11208 -53.8 -72.0 9 0.01 280 99 337.6 337.7
> 337.6
> 200.0 11850 -54.5 -80.5 3 0.00 285 92 346.3 346.3
> 346.3
> 162.0 13190 -58.2 -84.9 2 0.00 285 96 361.6 361.6
> 361.6
> 150.0 13680 -59.5 -86.5 2 0.00 280 80 367.4 367.4
> 367.4
> 147.0 13806 -59.9 -86.9 2 0.00 285 77 368.8 368.8
> 368.8
> 141.0 14065 -60.2 -87.1 2 0.00 285 71 372.7 372.7
> 372.7
> 130.0 14570 -60.7 -87.4 2 0.00 285 81 380.5 380.5
> 380.5
> 107.0 15780 -62.0 -88.2 2 0.00 290 66 399.8 399.8
> 399.8
> 100.0 16200 -62.5 -88.5 2 0.00 285 69 406.7 406.7
> 406.7
> 75.2 17951 -61.1 -93.0 1 0.00 281 48 444.1 444.1
> 444.1
> 72.0 18218 -62.9 -93.7 1 0.00 280 45 445.8 445.8
> 445.8
> 70.0 18390 -64.1 -94.1 1 0.00 285 45 446.9 446.9
> 446.9
> 65.0 18842 -65.7 -93.9 1 0.00 310 57 453.1 453.1
> 453.1
> 62.4 19091 -66.5 -93.8 1 0.00 307 49 456.5 456.5
> 456.5
> 61.0 19230 -65.1 -93.7 1 0.00 305 44 462.7 462.7
> 462.7
> 58.4 19496 -62.3 -93.6 1 0.00 303 46 474.7 474.7
> 474.7
> 55.0 19865 -64.5 -93.4 1 0.00 300 48 477.9 477.9
> 477.9
> 54.7 19899 -64.7 -93.4 1 0.00 297 49 478.2 478.2
> 478.2
> 53.0 20092 -64.1 -93.3 1 0.00 280 54 483.8 483.8
> 483.8
> 51.0 20328 -63.5 -93.2 1 0.00 275 38 490.8 490.8
> 490.8
> 50.0 20450 -63.1 -93.1 1 0.00 280 38 494.4 494.4
> 494.4
> 49.2 20549 -62.9 -93.1 1 0.00 284 41 497.1 497.1
> 497.1
> 49.0 20575 -62.0 -93.1 1 0.00 285 42 499.9 499.9
> 499.9
> 48.5 20638 -59.7 -93.1 1 0.00 279 43 506.8 506.8
> 506.8
> 47.0 20833 -60.8 -93.1 1 0.00 260 48 508.7 508.7
> 508.7
> 43.0 21383 -63.9 -93.2 1 0.00 270 31 514.2 514.2
> 514.2
> 39.0 21982 -64.1 -93.2 1 0.00 289 38 528.2 528.2
> 528.2
> 36.3 22424 -61.5 -93.2 1 0.00 303 43 545.9 545.9
> 545.9
> 35.0 22648 -62.2 -93.2 1 0.00 310 46 549.7 549.7
> 549.7
> 32.5 23106 -63.7 -93.3 1 0.00 298 47 557.5 557.5
> 557.5
> 32.0 23201 -61.5 -93.3 1 0.00 295 47 565.8 565.8
> 565.8
> 31.9 23221 -61.1 -93.3 1 0.00 295 48 567.5 567.5
> 567.5
> 30.0 23600 -63.3 -93.3 1 0.00 300 61 571.5 571.5
> 571.5
> 28.8 23851 -62.9 294 66 579.3
> 579.3
> 28.0 24027 -60.4 290 70 590.8
> 590.8
> 26.4 24396 -55.3 289 72 615.4
> 615.4
> 26.0 24493 -55.7 289 73 616.9
> 616.9
> 21.0 25866 -52.0 285 81 667.0
> 667.0
> 20.0 26180 -51.1 295 81 679.0
> 679.0
> 19.9 26213 -50.7 294 81 681.2
> 681.2
> 19.0 26513 -52.5 285 78 684.7
> 684.7
> 17.0 27242 -48.1 285 89 721.0
> 721.0
> 16.1 27598 -45.9 276 84 739.3
> 739.3
> 16.0 27639 -46.1 275 83 740.1
> 740.1
> 14.0 28519 -49.9 280 80 755.9
> 755.9
> 13.8 28614 -50.3 281 82 757.7
> 757.7
> 13.0 29009 -48.6 285 88 776.4
> 776.4
> 12.0 29540 -46.4 270 97 802.2
> 802.2
> 11.7 29707 -45.7 270 97 810.6
> 810.6
> 11.0 30116 -44.0 270 84 831.2
> 831.2
> 10.8 30237 -43.5 837.4 837
>
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