[gradsusr] gradsusr Digest, Vol 48, Issue 16
bob ogwang
bob_ogwang at yahoo.co.uk
Wed Feb 12 12:53:03 EST 2014
Via 'WhatsApp' I sent u a message I got when a friend bipped on my phone n I called back.
If what is said is true, don't feel any pressure to forward the invitation letter anymore, unless u deem it fit. I already know the kind of invitation and the kind of accommodation arranged for a couple.
God bless you always.
On Thursday, 13 February 2014, 1:09, "gradsusr-request at gradsusr.org" <gradsusr-request at gradsusr.org> wrote:
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Today's Topics:
1. Re: WAFS GRIB2: Cannot contour grid - all undefined values
(Andre Costa)
2. Algorithm for CAT calculation (Andre Costa)
3. Fwd: Algorithm for CAT calculation (Andre Costa)
----------------------------------------------------------------------
Message: 1
Date: Wed, 12 Feb 2014 09:21:48 -0200
From: Andre Costa <andrecosta2811 at gmail.com>
Subject: Re: [gradsusr] WAFS GRIB2: Cannot contour grid - all
undefined values
To: Matthew Grzych <mattgrzych at yahoo.com>, GrADS Users Forum
<gradsusr at gradsusr.org>
Message-ID:
<CAPmvD=EF_VfixAgP2GxMU6yK1BW6dVi_qsf1hA6atu84nJ7r7g at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
Hello Matt.
I would like to know if you have the algorithm to calculate these vars in
GrADS????
CATaveprs 6,100 0,19,22,0 ** (400 350 300 250 200 150) Clear Air
Turbulence (CAT) [%]
CATmaxprs 6,100 0,19,22,2 ** (400 350 300 250 200 150) Clear Air
Turbulence (CAT) [%]
CBHEclm 0,10,0 0,6,25 ** entire atmosphere Horizontal Extent of
Cumulonimbus (CB) [%]
CTPaveprs 6,100 0,19,21,0 ** (700 600 500 400 300) In-Cloud Turbulence[%]
CTPmaxprs 6,100 0,19,21,2 ** (700 600 500 400 300) In-Cloud Turbulence[%]
ICAHTcbb 0,11,0 0,3,3 ** cumulonimbus base ICAO Standard Atmosphere
Reference Height [m]
ICAHTcbt 0,12,0 0,3,3 ** cumulonimbus top ICAO Standard Atmosphere
Reference Height [m]
ICIPaveprs 6,100 0,19,20,0 ** (800 700 600 500 400 300) Icing [%]
ICIPmaxprs 6,100 0,19,20,2 ** (800 700 600 500 400 300) Icing [%]
Regards,
Wilheim.
2013-12-14 19:43 GMT-03:00 Matthew Grzych <mattgrzych at yahoo.com>:
> I am having no luck getting WAFS GRIB2 files to plot in GrADS and get the
> "Cannot contour grid - all undefined values" error after many hours of
> trying seemingly everything. I am downloading the files from:
>
>
> http://www.ftp.ncep.noaa.gov/data/nccf/com/gfs/prod/gfs.2013121212/WAFS_blended_2013121212f06.grib2
>
> Then I generate the control files using g2ctl.pl and index files using
> gribmap. Here's an example ctl file:
>
> _______________________________________________________________________________________
> dset /home/matt/gfs_wafs/12z/WAFS_blended_2013121412f06.grib2
> index /home/matt/gfs_wafs/12z/WAFS_blended_2013121412f06.grib2.idx
> undef -0.5
> title /home/matt/gfs_wafs/12z/WAFS_blended_2013121412f06.grib2
> * produced by g2ctl v0.0.8.4
> * command line options:
> /home/matt/gfs_wafs/12z/WAFS_blended_2013121412f06.grib2
> * griddef=1:0:(288 x 145):grid_template=0:winds(N/S): lat-lon grid:(288 x
> 145) units 1e-06 input WE:NS output WE:SN res 48 lat 90.000000 to
> -90.000000 by 1.250000 lon 0.000000 to 358.750000 by 1.250000
> #points=41760:winds(N/S)
> dtype grib2
> ydef 145 linear -90.000000 1.25
> xdef 288 linear 0.000000 1.250000
> tdef 1 linear 18Z14dec2013 6hr
> * PROFILE hPa
> zdef 6 levels 40000 35000 30000 25000 20000 15000
> options pascals
> vars 9
> CATaveprs 6,100 0,19,22,0 ** (400 350 300 250 200 150) Clear Air
> Turbulence (CAT) [%]
> CATmaxprs 6,100 0,19,22,2 ** (400 350 300 250 200 150) Clear Air
> Turbulence (CAT) [%]
> CBHEclm 0,10,0 0,6,25 ** entire atmosphere Horizontal Extent of
> Cumulonimbus (CB) [%]
> CTPaveprs 6,100 0,19,21,0 ** (700 600 500 400 300) In-Cloud Turbulence
> [%]
> CTPmaxprs 6,100 0,19,21,2 ** (700 600 500 400 300) In-Cloud Turbulence
> [%]
> ICAHTcbb 0,11,0 0,3,3 ** cumulonimbus base ICAO Standard Atmosphere
> Reference Height [m]
> ICAHTcbt 0,12,0 0,3,3 ** cumulonimbus top ICAO Standard Atmosphere
> Reference Height [m]
> ICIPaveprs 6,100 0,19,20,0 ** (800 700 600 500 400 300) Icing [%]
> ICIPmaxprs 6,100 0,19,20,2 ** (800 700 600 500 400 300) Icing [%]
> ENDVARS
>
> ____________________________________________________________________________________
>
> Here's the output from my .gs file:
>
> ___________________________________________________________________________________
> Running in Batch mode
> open WAFS_blended_2013121412f06.grib2.ctl
> Scanning description file: WAFS_blended_2013121412f06.grib2.ctl
> Data file /home/matt/gfs_wafs/12z/WAFS_blended_2013121412f06.grib2 is open
> as file 1
> LON set to 0 360
> LAT set to -90 90
> LEV set to 400 400
> Time values set: 2013:12:14:18 2013:12:14:18
> E set to 1 1
> set LON 0 358.75
> LON set to 0 358.75
> set gxout shaded
> d CATmaxprs
> Cannot contour grid - all undefined values
> q dims
> Default file number is: 1
> X is varying Lon = 0 to 358.75 X = 1 to 288
> Y is varying Lat = -90 to 90 Y = 1 to 145
> Z is fixed Lev = 400 Z = 1
> T is fixed Time = 18Z14DEC2013 T = 1
> E is fixed Ens = 1 E = 1
> quit
> EXEC error: error in turb_dev.gs. EXEC stopped.
> No hardcopy metafile open
> GX package terminated
>
>
> __________________________________________________________________________________
>
> Any ideas?
> Thanks,
> Matt
>
>
>
>
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
>
>
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Message: 2
Date: Wed, 12 Feb 2014 09:33:11 -0200
From: Andre Costa <andrecosta2811 at gmail.com>
Subject: [gradsusr] Algorithm for CAT calculation
To: GrADS Users Forum <gradsusr at gradsusr.org>
Message-ID:
<CAPmvD=GMx0usgNs0FmgMucdMCAFuN69oD_9akvXbPfkmnqSx0Q at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
Dear users,
Does Anybody have an algorithm to calculate clear air turbulence (CAT) in
GrADS, like these variables???
CATaveprs 6,100 0,19,22,0 ** (400 350 300 250 200 150) Clear Air
Turbulence (CAT) [%]
CATmaxprs 6,100 0,19,22,2 ** (400 350 300 250 200 150) Clear Air
Turbulence (CAT) [%]
CBHEclm 0,10,0 0,6,25 ** entire atmosphere Horizontal Extent of
Cumulonimbus (CB) [%]
CTPaveprs 6,100 0,19,21,0 ** (700 600 500 400 300) In-Cloud Turbulence[%]
CTPmaxprs 6,100 0,19,21,2 ** (700 600 500 400 300) In-Cloud Turbulence[%]
ICAHTcbb 0,11,0 0,3,3 ** cumulonimbus base ICAO Standard Atmosphere
Reference Height [m]
ICAHTcbt 0,12,0 0,3,3 ** cumulonimbus top ICAO Standard Atmosphere
Reference Height [m]
ICIPaveprs 6,100 0,19,20,0 ** (800 700 600 500 400 300) Icing [%]
ICIPmaxprs 6,100 0,19,20,2 ** (800 700 600 500 400 300) Icing [%]
Regards.
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Message: 3
Date: Wed, 12 Feb 2014 09:49:51 -0200
From: Andre Costa <andrecosta2811 at gmail.com>
Subject: [gradsusr] Fwd: Algorithm for CAT calculation
To: GrADS Users Forum <gradsusr at gradsusr.org>
Message-ID:
<CAPmvD=H3RMG8pWK=0f3LgEz1ntTaHHU2REBDOGcsCR9=tq3bKQ at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
I mean Grads script instead Algorithm.
Thanks.
---------- Forwarded message ----------
From: Andre Costa <andrecosta2811 at gmail.com>
Date: 2014-02-12 8:33 GMT-03:00
Subject: Algorithm for CAT calculation
To: GrADS Users Forum <gradsusr at gradsusr.org>
Dear users,
Does Anybody have an algorithm to calculate clear air turbulence (CAT) in
GrADS, like these variables???
CATaveprs 6,100 0,19,22,0 ** (400 350 300 250 200 150) Clear Air
Turbulence (CAT) [%]
CATmaxprs 6,100 0,19,22,2 ** (400 350 300 250 200 150) Clear Air
Turbulence (CAT) [%]
CBHEclm 0,10,0 0,6,25 ** entire atmosphere Horizontal Extent of
Cumulonimbus (CB) [%]
CTPaveprs 6,100 0,19,21,0 ** (700 600 500 400 300) In-Cloud Turbulence[%]
CTPmaxprs 6,100 0,19,21,2 ** (700 600 500 400 300) In-Cloud Turbulence[%]
ICAHTcbb 0,11,0 0,3,3 ** cumulonimbus base ICAO Standard Atmosphere
Reference Height [m]
ICAHTcbt 0,12,0 0,3,3 ** cumulonimbus top ICAO Standard Atmosphere
Reference Height [m]
ICIPaveprs 6,100 0,19,20,0 ** (800 700 600 500 400 300) Icing [%]
ICIPmaxprs 6,100 0,19,20,2 ** (800 700 600 500 400 300) Icing [%]
Regards.
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