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[GEMPAK #QHN-534327]: GEMAPK Question - vertical maximum
- Subject: [GEMPAK #QHN-534327]: GEMAPK Question - vertical maximum
- Date: Thu, 17 Apr 2014 13:30:18 -0600
Hi Nathan,
I've been trying to figure out different ways to do this. The first thought I
can is quick but hack-y and requires some scripting. You didn't mention if
this is grid data or SN data so I'm using grid data for my example.
GEMPAK-GDPROF>l
GPOINT = IAD
GDATTIM = f012
GVCORD = PRES
GFUNC = TMPC
GVECT = WND
GDFILE = nam12
LINE = 3
MARKER = 0
BORDER = 1
PTYPE = LOG
SCALE = 999
XAXIS =
YAXIS =
WIND = BM1
REFVEC =
WINPOS = 1
FILTER = YES
TITLE = 1
PANEL = 0
CLEAR = YES
TEXT = 1
DEVICE = XW
OUTPUT = f/gdprof.txt
THTALN = 0
THTELN = 0
MIXRLN = 0
GEMPAK-GDPROF>r
GDPROF PARAMETERS
Grid file: nam12
Grid time: 140417/1200F012
Grid function: TMPC
Grid vector function: WND
X,Y grid point: 475.74 206.16
Lat/lon: 38.95 -77.45
Number of levels: 29
Data range: -63.79 7.41
Scaling factor: 10** 0
Wind display: BM1
Two things to notice here: 1) OUTPUT = t/gdprof.txt directs text data to be
dumped to file. You can exit GDPROF and cat/grep/sed/whatever the new txt file
to computer min/max. 2) "Data range:" shows you the range right there! But
it's not dumped to the text file. But if you are scripting, and call GDPROF
and log the output such as ./callGDProf.csh >& prof.log, then you can grep for
"Data range" and get your min/max.
Like I said, it's hack-y but it works. I put an example script here:
http://jsfiddle.net/9PDHP/
I don't have a solution yet which deals with an entire grid. I was hoping that
GDDIAG or GDSTAT could help, but I'm not sure how yet.
Michael James
Unidata
> Full Name: Nathan Marsili
> Email Address: address@hidden
> Organization: National Weather Service
> Package Version:
> Operating System:
> Hardware:
> Description of problem: From what I have researched this is probably not
> possible, but is there any way to produce a maximum value of a parameter in
> the vertical. I have a parameter at 10 different levels and would like to
> display the maximum value of this parameter?
>
>
Ticket Details
===================
Ticket ID: QHN-534327
Department: Support GEMPAK
Priority: Normal
Status: Open