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20040813: IMGDISP keyword: ALL (cont.)

>From: "Kwan-yin Kong" <address@hidden>
>Organization: CCNY
>Keywords: 200408131552.i7DFqcaW028056 McIDAS IMGDISP IMGLIST

Hi Kwan-yin,

re: my experience with the IMGDISP command and the combination
of ALL= and TIME=

>      Thanks.  I'll check the IMGDISP command again.

Hmm...  I just tried loading sectors from the 1 km N0R national
composite, and I think I see what you were seeing:

IMGDISP NEXRCOMP/1KN0R-NAT ALL=1 50 EU=BREF SF=YES REFRESH='EG GRA=(GRA);MAP H 
GRA=(GRA)' TIME=00:00 00:59
IMGDISP: There are no images that meet the selection criteria
IMGDISP: done
IMGDISP failed, RC=2

I know that there are images whose TIMEs lie between 0Z and 0:59Z:

IMGLIST NEXRCOMP/1KN0R-NAT.ALL TIME=00:00 00:59
Image file directory listing for:NEXRCOMP/1KN0R-NAT
 Pos Satellite/         Date       Time      Center   Band(s)
     sensor                                 Lat  Lon
 --- -------------  ------------  --------  ---- ---- ------------
 117  RADAR         14 AUG 04227  00:00:00     TWX    27
 118  RADAR         14 AUG 04227  00:04:00     TWX    27
 119  RADAR         14 AUG 04227  00:08:00     TWX    27
 120  RADAR         14 AUG 04227  00:13:00     TWX    27
 121  RADAR         14 AUG 04227  00:17:00     TWX    27
 122  RADAR         14 AUG 04227  00:22:00     TWX    27
 123  RADAR         14 AUG 04227  00:26:00     TWX    27
 124  RADAR         14 AUG 04227  00:31:00     TWX    27
 125  RADAR         14 AUG 04227  00:36:00     TWX    27
 126  RADAR         14 AUG 04227  00:40:00     TWX    27
 127  RADAR         14 AUG 04227  00:45:00     TWX    27
 128  RADAR         14 AUG 04227  00:49:00     TWX    27
 129  RADAR         14 AUG 04227  00:54:00     TWX    27
 130  RADAR         14 AUG 04227  00:59:00     TWX    27

So, there really is a problem loading from the NEXRCOMP/1KN0R-NAT
dataset that I will need to investigate, and/or pass along to SSEC.

One that you could do to work around the problem is use IMGLIST
to get a listing of the number of images in the TIME= interval
you are interested in, and then set the ALL= keyword values using
that information.  I just did this, and it works fine meaning
that if you specify ALL=1 n, where 'n' is the number of images
that exist in the TIME= interval, then the command works fine.

>      As for what I asked about the surface data, what I 
>meant was the "sea-surface" temperature from ships and 
>buoys (not the regular air temp).

OK, I am sorry that I misunderstood what you were asking.  I don't
think that there are many observations of sea surface temperatures.
There are no observations that SFCPLOT can plot.  You may have to start
looking at model output to get a handle on sea surface temperatures.
To plot/contour values from model output (ADDE dataset RTGRIDS), you
will need to use GRDDISP.

I will get back to you with what I find on the plotting of time ranges
of data from the NEXRCOMP/1KN0R-NAT dataset.  The problem might be on
the server side, but I won't know for sure until I dig deeper.  Until
then, I recommend using IMGLIST to find out how many images can be
plotted and then setting ALL= in your script to numbers that work.

Cheers,

Tom
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