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20010918: McIDAS SFCMG and off-hours reports; GOES-East GINI IR images (cont.)

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  • Subject: 20010918: McIDAS SFCMG and off-hours reports; GOES-East GINI IR images (cont.)
  • Date: Tue, 18 Sep 2001 12:00:43 -0600
>From: Christian Page <address@hidden>
>Organization: UQAM
>Keywords: 200109180846.f8I8k9116975 McIDAS ADDE GINIEAST

Christian,

>This is because in the previous email I thought that you think that on
>the left the code should behave to put axis parameters in the units
>specified by the UNIT keywords. So if one user choose UNIT=M the units
>on the left axis would be metrics. If the standard is to put imperial
>units on the left and metric units on the right, then this code is ok.

OK.

>A new question:
>
>I generate automatically GOES-8 images using (XREC and TEMPC are
>homemade stretch and enhancement tables):
>
>imgdisp.k RTGINI/GE4KIR STA=CYYZ MAG=1 EU=XREC SF=YES REFRESH='EG 1;MAP H 8;BA
> R COL=8 SU=TEMPC 1'
>
>It seems that when, in GMT, the time is > 3:30 and < 7:15, the east
>coast is not covered by the satellite. More, it seems that I get
>GOES-10 images instead of GOES-8, this is why the east coast is clipped
>and that the resolution is bad to the left of the clipped region. Also,
>the times of the images are not at :15 and :45, but instead they are at
>:00 and :30.
>
>A problem in GINI?

GOES-East (GOES-8 at the moment) is not scanning during the period from
4 to 7 Z.  This can be seen in the GINI data in NOAAPORT:

DATALOC ADD GINIEAST CACIMBO.GGY.UGA.EDU
IMGLIST GINIEAST/GE4KIR.ALL
Image file directory listing for:GINIEAST/GE4KIR
 Pos Satellite/         Date       Time      Center   Band(s)
     sensor                                 Lat  Lon
 --- -------------  ------------  --------  ---- ---- ------------

 ...

  87  G-8 IMG       17 SEP 01260  03:31:00    56  113 4
  88  G-8 IMG       17 SEP 01260  03:39:00    56  113 4
  89  G-10 IMG      17 SEP 01260  04:00:00    56  113 4
  90  G-10 IMG      17 SEP 01260  04:30:00    56  113 4
  91  G-10 IMG      17 SEP 01260  05:00:00    56  113 4
  92  G-10 IMG      17 SEP 01260  05:30:00    56  113 4
  93  G-10 IMG      17 SEP 01260  06:00:00    56  113 4
  94  G-10 IMG      17 SEP 01260  06:30:00    56  113 4
  95  G-8 IMG       17 SEP 01260  07:01:00    56  113 4
  96  G-8 IMG       17 SEP 01260  07:15:00    56  113 4
 ...

and in the RTIMAGES data in the Unidata-Wisconsin datastream:

DATALOC ADD RTIMAGES ADDE.UCAR.EDU
IMGLIST RTIMAGES/GE-IR.ALL
Image file directory listing for:RTIMAGES/GE-IR
 Pos Satellite/         Date       Time      Center   Band(s)
     sensor                                 Lat  Lon
 --- -------------  ------------  --------  ---- ---- ------------

 ...

 283  G-8 IMG       17 SEP 01260  00:15:00    23   71 4
 284  G-8 IMG       17 SEP 01260  01:15:00    23   71 4
 285  G-8 IMG       17 SEP 01260  02:15:00    23   71 4
 286  G-8 IMG       17 SEP 01260  03:15:00    23   71 4
 287  G-8 IMG       17 SEP 01260  07:15:00    23   71 4
 288  G-8 IMG       17 SEP 01260  08:15:00    23   71 4
 289  G-8 IMG       17 SEP 01260  09:15:00    23   71 4
 ...

During this time, GOES-West (GOES-10 at the moment) scans are being
used to fill in NOAAPORT GINIEAST images.

The spatial coverage of GOES-West is such that a remap into the
GOES-East GINI projection will result in no data on the eastern borders
of the image.  Also, since GOES-West is being used to fill in the
images, the times of the images will reflect those of GOES-West (:00
and :30) instead of the GOES-East times (:15 and :45).

Tom