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20011231: ETA snow grids

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  • Subject: 20011231: ETA snow grids
  • Date: Mon, 31 Dec 2001 11:09:36 -0700
Robert,

On NOAAPORT, the ETA ICWF grids on grid 212 for snow depth are:
^[YZ]SR.98 KWBD

Note that this is KWBD for model number 89 and not KWBE (model number 84).
On the ptgftp.nws.noaa.gov ftp server, look for the icwf grids under:
SL.us008001/ST.opnl/MT.eta_CY.12/RD.20011231/PT.grid_DF.gr1
                                    ^^^^^^^^
                                    date name in directory structure

The parameter number in the GRIB is "66". The wgrib code will call the
parameter "SNOD". GEMPAK will call these SNDM and SNDM03 (accumulation period).

As an example in GEMPAK plotting the depth in inches (GDPLOT2):
GDPFUN   = quo(mul(sndm03,100),2.54)
SCALE    = 0
CINT     = 1/1

Steve Chiswell
Unidata User Support


On Mon, 31 Dec 2001, Robert Mullenax wrote:

> Does anyone know what the parameter name is for forecast snow amounts from
> the ETA..
> or can you tell me where there is a description of all of these parameters
> that are in
> the NCEP ftp server ETA?
>
> Thanks,
> Robert
>
> Robert Mullenax
> Weather Systems Administrator
> Universal Weather and Aviation
>