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20040416: initialization GFS grids in McIDAS format for 12Z 20040416

>From: address@hidden (Jennie L. Moody)
>Organization: UVa
>Keywords: 200404162051.i3GKppCT024799 McIDAS GRID

Hi Jennie,

>I know this is the sort of thing that only happens at 5oclock
>on a Friday, but if you guys have RT GRID data (McIDAS decoded
>GRIDS) from the GFS that includes the initialization (not
>forecasts) for 12Z today, could I ask you to save it for me
>and I will grab it next week (I guess this would be directed
>at Tom or Chiz?)

Man, on a Friday afternoon while you are walking out of the
door!  Sheesh ;-)

I just saved the GRID file that contains the 12Z GFS 0-24 hr
grids (initialization and forecasts) in gzip compressed format.
Here is a listing of the first 10 of 1408 grids from this file:

GRDLIST MYDATA/GRIDS.5827 NUM=10
Dataset position 5827   Directory Title= ALL  12Z GFS 0  HR<=VT<=24 HR
PAR    LEVEL       DAY        TIME    SRC FHOUR     FDAY       FTIME  GRID  PRO
---- --------- ------------ -------- ---- ----- ------------ -------- ----- ----
Z     700 MB   16 APR 04107 12:00:00  GFS     0 16 APR 04107 12:00:00     1 PS
Z     850 MB   16 APR 04107 12:00:00  GFS     0 16 APR 04107 12:00:00     2 PS
Z     500 MB   16 APR 04107 12:00:00  GFS     0 16 APR 04107 12:00:00     3 PS
Z     250 MB   16 APR 04107 12:00:00  GFS     0 16 APR 04107 12:00:00     4 PS
Z     300 MB   16 APR 04107 12:00:00  GFS     0 16 APR 04107 12:00:00     5 PS
U     850 MB   16 APR 04107 12:00:00  GFS     0 16 APR 04107 12:00:00     6 PS
U     700 MB   16 APR 04107 12:00:00  GFS     0 16 APR 04107 12:00:00     7 PS
U    1000 MB   16 APR 04107 12:00:00  GFS     0 16 APR 04107 12:00:00     8 PS
U     500 MB   16 APR 04107 12:00:00  GFS     0 16 APR 04107 12:00:00     9 PS
V     850 MB   16 APR 04107 12:00:00  GFS     0 16 APR 04107 12:00:00    10 PS
Number of grids listed = 10
GRDLIST - done

>I have the forecasts at this resolution:
>
>Dataset position 5817   Directory Title= ALL  12Z GFS 24 HR<
>VT<=48 HR
>PAR    LEVEL       DAY        TIME    SRC FHOUR     FDAY
>FTIME  GRID  PRO
>---- --------- ------------ -------- ---- ----- ------------
>-------- ----- ----
>T     250 MB   16 APR 04107 12:00:00  GFS    30 17 APR 04108
>18:00:00     1 MERC
>Total pts= 41905 Num rows= 145  Num columns= 289    received:
>2004107 181302Z
>Temperature
>GRIB ID numbers: Geographic =3744; PAR = 11; Model ID = 80; Level
>type =100
>Units of gridded variable are K    Scale of variable is:   2
>Mercator Projection
>Min Lat= -90.00  Max Lat=  90.00  Min Lon=-180.00  Max Lon=
>180.00
>Latitude Increment= 1.2500  Longitude Increment= 1.2500
>Number of grids listed = 1
>GRDLIST - done

>But I only get the initializations on a different projection
>(or thats all I decode, I need to figure this out), so all I
>have AT 12Z is:
>
>Dataset position 5807   Directory Title= ALL  12Z GFS 0
>HR<=VT<=24 HR
>PAR    LEVEL       DAY        TIME    SRC FHOUR     FDAY       FTIME  GRID  PRO
>---- --------- ------------ -------- ---- ----- ------------ -------- ----- 
>----
>Z     700 MB   16 APR 04107 12:00:00  GFS     0 16 APR 04107 12:00:00     1 PS
>Total pts=  4225 Num rows=  65  Num columns=  65    received: 2004107 153035Z
>Geopotential height
>GRIB ID numbers: Geographic = 201; PAR =  7; Model ID = 81; Level type =100
>Units of gridded variable are GPM  Scale of variable is:   2
>Polar Stereographic Projection
>Row num of pole=   33.00  Col num of pole=   33.00  Col spacing (m)=381000.0
>Standard Latitudes=   60.00     60.00   Standard Longitude= 105.00
>Number of grids listed = 1
>GRDLIST - done

OK.  This matches the data I grabbed:

GRDLIST MYDATA/GRIDS.5827 PAR=Z LEV=700 GPRO=PS FORM=ALL
Dataset position 5827   Directory Title= ALL  12Z GFS 0  HR<=VT<=24 HR
PAR    LEVEL       DAY        TIME    SRC FHOUR     FDAY       FTIME  GRID  PRO
---- --------- ------------ -------- ---- ----- ------------ -------- ----- ----
Z     700 MB   16 APR 04107 12:00:00  GFS     0 16 APR 04107 12:00:00     1 PS
Total pts=  4225 Num rows=  65  Num columns=  65    received:  2004107 153034Z
Geopotential height
GRIB ID numbers: Geographic = 201; PAR =  7; Model ID = 81; Level type =100
Units of gridded variable are GPM  Scale of variable is:   2
Polar Stereographic Projection
Row num of pole=   33.00  Col num of pole=   33.00  Col spacing (m)=381000.0
Standard Latitudes=   60.00     60.00   Standard Longitude=  105.00
Number of grids listed = 1
GRDLIST - done

>The problem is I got some AREA files to work with on a
>test basis (they are for today, and I got them from
>Dee Wade)....but I didn't realize I don't have the
>global scale GRIDS I need.   I can sort out how/if
>I might get access to these...but for the moment, if
>someone just has a 12Z GFS 0 HR< VT <=24HR at the 1.25x1.25
>resolutions for the global projection, and can save it for me....
>I would be very, very grateful!!!

How grateful? ;-)

>Thanks.

No worries.

Cheers,

Tom
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