Questions and CD

[Jennifer Adams]

On Apr 13, 2009, at 11:59 AM, Christopher Blossom wrote:

> To all:
>
>      I have a couple of questions: when I use rc=write(Jan1979.ctl,
> dset Jan1979.dat), I get the following message: Syntax Error:
> Invalid Operand
> 'write' not a variable or function name

> Error ocurred at column 1
> DEFINE error: Invalid expression.
Put your write command in a script, the write function is only in the
scripting language.

> I am running grads OPeNDAP
As Arlindo pointed out, the protocol is to include the the operating
system you're running on, as well as the output from 'q config' in
your post.

> Why does that happen?
> Additionally, I looked at http://nomads.ncdc.noaa.gov/dods/NCEP_NARR_DAILY/197901/197901/narr-b_221_197901dd_hh00_000.info
>   and saw some asterisks.  When I put down d weasd3hr, I got the
> following error message:gancgrid error: unable to allocate memory
> for grtmp grid storage
>      grid size = xlen * ylen * zlen * tlen * elen = 28 * 28 * -999 *
> 1 * 1
Here is the problem: your Z dimension is set to something that is
inconsistent with this data set, because the dim size given is -999.
Check the output from 'q dims' before you invoke display or define and
make sure you've got all your dimensions set properly.

> Data Request Error:  Error for variable 'weasd3hr'
>      Error ocurred at column 1
> DISPLAY error:  Invalid expression
>      Expression = weasd3hr.
> Why was that?

> Finally, I have the CD.  However, how do I view the files?  The
> extensions in the monthly folders are .nar, .sqr, .hr and .sum.
> There is also a .PIC file for tracks.  Another extension is .bgi.
> Finally, there is a file called INSTALL.
I would guess that none of these file are directly readable/viewable
with GrADS. Those file extensions don't correspond to any standard
data format that I know of. You'll have to look for more metadata on
your CD to find out what they mean.



Jennifer

--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org



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