[gradsusr] Getting SREF Probability Variables To Plot In GrADS

Fri Jun 6 06:40:30 EDT 2014

Hi Jennifer,

Here's my data source:

http://ftp.ncep.noaa.gov/data/nccf/com/sref/prod/

Onward and Upward,

Aaron D. Perry
Atmospheric Sciences
Lyndon State College
Class of 2016
Boston, MA
Twitter: @AaronPerryLSC<https://twitter.com/AaronPerryLSC>
Mobile: 617-780-4312
________________________________
From: gradsusr-bounces at gradsusr.org [gradsusr-bounces at gradsusr.org] on behalf of Jennifer Adams [jma at cola.iges.org]
Sent: Friday, June 06, 2014 6:31 AM
To: GrADS Users Forum
Subject: Re: [gradsusr] Getting SREF Probability Variables To Plot In GrADS

Can you point me to the source of your data file? --Jennifer

On Jun 5, 2014, at 1:29 PM, Perry, Aaron @ LSC wrote:

Jennifer,

After carrying out your suggestions, I am still getting the "Data Request Warning/Cannot Contour" errors.

I've attached the control file and the GrADS script that I'm using to try and plot, at this point, anything.

Onward and Upward,

Aaron D. Perry
Atmospheric Sciences
Lyndon State College
Class of 2016
Boston, MA
Twitter: @AaronPerryLSC<https://twitter.com/AaronPerryLSC>
Mobile: 617-780-4312
________________________________
From: gradsusr-bounces at gradsusr.org<mailto:gradsusr-bounces at gradsusr.org> [gradsusr-bounces at gradsusr.org<mailto:gradsusr-bounces at gradsusr.org>] on behalf of Jennifer Adams [jma at cola.iges.org<mailto:jma at cola.iges.org>]
Sent: Thursday, June 05, 2014 6:49 AM
To: GrADS Users Forum
Subject: Re: [gradsusr] Getting SREF Probability Variables To Plot In GrADS

Looks like you need to change your time axis to be 3 hourly and extend it to 00z21jun. --Jennifer
On Jun 4, 2014, at 8:46 PM, Perry, Aaron @ LSC wrote:

Hi Jennifer,

I just went back and fixed those variables in the control file.

Here's the output from gribmap -v:

1.1: lev1=1,0 a1,1.27 var=0,1,8,1 MATCH
2.1: lev1=1,0 a1,12.7 var=0,1,8,1 MATCH
3.1: lev1=1,0 a1,0.25 var=0,1,8,1 valid time 2014060606:00 (t=7.5) has non-integer grid index
4.1: lev1=1,0 a1,38.1 var=0,1,8,1 valid time 2014060612:00 (t=8.5) has non-integer grid index
5.1: lev1=1,0 a1,2.54 var=0,1,8,1 valid time 2014060700:00 (t=10.5) is outside grid limits
6.1: lev1=1,0 a1,101.6 var=0,1,8,1 valid time 2014060709:00 (t=12) is outside grid limits
7.1: lev1=1,0 a1,12.7 var=0,1,8,1 valid time 2014060721:00 (t=14) is outside grid limits

Looks like variables 5-7 are giving me issues, possibly THE issue?

Onward and Upward,

Aaron D. Perry
Atmospheric Sciences
Lyndon State College
Class of 2016
Boston, MA
Twitter: @AaronPerryLSC<https://twitter.com/AaronPerryLSC>
Mobile: 617-780-4312
________________________________
From: gradsusr-bounces at gradsusr.org<mailto:gradsusr-bounces at gradsusr.org> [gradsusr-bounces at gradsusr.org<mailto:gradsusr-bounces at gradsusr.org>] on behalf of Jennifer Adams [jma at cola.iges.org<mailto:jma at cola.iges.org>]
Sent: Wednesday, June 04, 2014 6:36 PM
To: GrADS Users Forum
Subject: Re: [gradsusr] Getting SREF Probability Variables To Plot In GrADS

Hi, Aaron --
You don't need the alias syntax with grib data. The var1.1 syntax is just a dummy variable name that is designed to be unique to the record. You can use use "p1" instead of "var1.1=>p1".

What is the output from gribmap -v?
--Jennifer

On Jun 4, 2014, at 6:25 PM, Perry, Aaron @ LSC wrote:

I took a look at the suggestion documentation and ran grib2scan. Below is a copy/paste link of the output. After reviewing the output, I was able to come up with this modified control file:

grib2scan Output: http://paste2.org/zE92be26

Modified Control File (Not working):

dset /home/aaron/grads/data/sref_prob/20140604/15Z/sref_prob.20140604.15z.grib2
index /home/aaron/grads/data/sref_prob/20140604/15Z/sref_prob.20140604.15z.grib2.idx
undef 9.999E+20
title /home/aaron/grads/data/sref_prob/20140604/15Z/sref_prob.20140604.15z.grib2
* produced by g2ctl v0.0.9
* command line options: /home/aaron/grads/data/sref_prob/20140604/15Z/sref_prob.20140604.15z.grib2
* griddef=1:0:(697 x 553):grid_template=30:winds(grid): Lambert Conformal: (697 x 553) input WE:SN output WE:SN res 8 Lat1 1.000000 Lon1 214.500000 LoV 253.000000 LatD 50.000000 Latin1 50.000000 Latin2 50.000000 LatSP 0.000000 LonSP 0.000000 North Po
dtype grib2
pdef 697 553 lccr 1.000000 214.500000 1 1 50.000000 50.000000 253.000000 16232.000000 16232.000000
xdef 1415 linear 148.637041 0.147586114443721
ydef 573 linear 0.896436 0.147563636363636
tdef 10 linear 15Z04jun2014 6hr
zdef 1 linear 1 1
vars 7
var1.1=>p1 0,1,0 a1,1.27 0,1,8,1 Probability of event above 1.27
var2.1=>p2 0,1,0 a1,12.7 0,1,8,1 Probability of event above 12.7
var3.1=>p3 0,1,0 a1,0.25 0,1,8,1 Probability of event above 0.25
var4.1=>p4 0,1,0 a1,38.1 0,1,8,1 Probability of event above 38.1
var5.1=>p5 0,1,0 a1,2.54 0,1,8,1 Probability of event above 2.54
var6.1=>p6 0,1,0 a1,101.6 0,1,8,1 Probability of event above 101.6
var7.1=>p7 0,1,0 a1,12.7 0,1,8,1 Probability of event above 12.7
ENDVARS

Unfortunately, I am still receiving the "Cannot Contour Grid/Data Request Warning" errors. None of the variables will plot.

Onward and Upward,

Aaron D. Perry
Atmospheric Sciences
Lyndon State College
Class of 2016
Boston, MA
Twitter: @AaronPerryLSC<https://twitter.com/AaronPerryLSC>
Mobile: 617-780-4312
________________________________
From: gradsusr-bounces at gradsusr.org<mailto:gradsusr-bounces at gradsusr.org> [gradsusr-bounces at gradsusr.org<mailto:gradsusr-bounces at gradsusr.org>] on behalf of Jennifer Adams [jma at cola.iges.org<mailto:jma at cola.iges.org>]
Sent: Wednesday, June 04, 2014 11:31 AM
To: GrADS Users Forum
Subject: Re: [gradsusr] Getting SREF Probability Variables To Plot In GrADS

Aaron,
Have a look at the doc page on descriptor file elements, under 'vars' and then 'additional codes'.  grib2scan in verbose mode should give you a suitable entry for the descriptor file.
--Jennifer

On Jun 4, 2014, at 8:50 AM, Perry, Aaron @ LSC wrote:

Good Morning All,

I've followed the steps that were outlined in this post (http://gradsusr.org/pipermail/gradsusr/2011-November/031529.html) a while back regarding getting SREF probabilities to plot in GrADS. I keep getting the "Cannot contour grid/data request" error and I was wondering if someone might know of solution.

Onward and Upward,

Aaron D. Perry
Atmospheric Sciences
Lyndon State College
Class of 2016
Boston, MA
Twitter: @AaronPerryLSC<https://twitter.com/AaronPerryLSC>
Mobile: 617-780-4312
_______________________________________________
gradsusr mailing list
gradsusr at gradsusr.org<mailto:gradsusr at gradsusr.org>
http://gradsusr.org/mailman/listinfo/gradsusr

--
Jennifer M. Adams
Center for Ocean-Land-Atmosphere Studies (COLA)
111 Research Hall, Mail Stop 2B3
George Mason University
4400 University Drive
Fairfax, VA 22030

_______________________________________________
gradsusr mailing list
gradsusr at gradsusr.org<mailto:gradsusr at gradsusr.org>
http://gradsusr.org/mailman/listinfo/gradsusr

--
Jennifer M. Adams
Center for Ocean-Land-Atmosphere Studies (COLA)
111 Research Hall, Mail Stop 2B3
George Mason University
4400 University Drive
Fairfax, VA 22030

_______________________________________________
gradsusr mailing list
gradsusr at gradsusr.org<mailto:gradsusr at gradsusr.org>
http://gradsusr.org/mailman/listinfo/gradsusr

--
Jennifer M. Adams
Center for Ocean-Land-Atmosphere Studies (COLA)
111 Research Hall, Mail Stop 2B3
George Mason University
4400 University Drive
Fairfax, VA 22030

<sref_prob.20140604.15z.ctl><sref_qpf_prob.gs>_______________________________________________
gradsusr mailing list
gradsusr at gradsusr.org<mailto:gradsusr at gradsusr.org>
http://gradsusr.org/mailman/listinfo/gradsusr

--
Jennifer M. Adams
Center for Ocean-Land-Atmosphere Studies (COLA)
111 Research Hall, Mail Stop 2B3
George Mason University
4400 University Drive
Fairfax, VA 22030

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