Re: ECM data


We get some ECMWF data from the OSO (I think it's actually called OCIO now?)
ftp server and we noticed awhile back that we stopped getting the ECMWF data
that NCEP was putting on their new ftp server (  It's
still on their "old" server ( for some reason, so we just
get it from there.  Anyways, I asked around and talked with Luis Cano at
NCEP who told me that the ECMWF data contains grids that are restricted.
I've attached the correspondence that Luis and I had.  Hope this helps!  You
may want to get in touch with Luis yourself if you have any more questions?

Brian Hoeth
Software Engineer, Lockheed Martin
CSOC - Consolidated Space Operations Contract
Johnson Space Center, Houston, TX
Office:  281-218-2240
Pager:  281-613-1020

-----Original Message-----
Sent: Wednesday, April 03, 2002 3:25 PM


We've been receiving complaints from some of our internal users that we
have not been receiving ECMWF data (see headers below). 
Since we archive every product with a WMO header that starts with H, and
since we ingest both from our own NOAAPORT system and the IDD, I do not
suspect a data transmission problem (the logs clearly indicate that
there has been no data loss).  Rather, I suspect ECMWF and/or NOAA may
changed the headers on some of the products distributed and/or removed
some products from the datastream.  I checked to see if there were any
changes, but could not find any, nor could I find anything useful on the
ECMWF website.  I would like to be able to find some sort of
documentation to support my theory but I'm running out of places to

Any suggestions?


The WMO headers in question are:
> 2002/03/28 :
>     HP(A,B,C,D,I,J,K,L)A98 ECMF 281200
>     HH(A,B,C,D,I,J,K,L)A50 ECMF 281200
>     HT(A,B,C,D,I,J,K,L)A85 ECMF 281200
>     H(U,V)(A,B,C,D,I,J,K,L)A(20,50,70,85) ECMF 281200
> 2002/03/29 :
>     HR(A,B,C,D,I,J,K,L)A(70,85) ECMF 291200
>     HT(A,B,C,D,I,J,K,L)A85 ECMF 291200
>     H(U,V)(A,B,C,D,I,J,K,L)A(20,50,70,85) ECMF 291200
> 2002/03/31 :
>     H(U,V)(A,B,C,D,I,J,K,L)A(20,70) ECMF 311200
> 2002/04/0101 :
>     HP(A,B,C,D,I,J,K,L)A98 ECMF 011200
>     HR(A,B,C,D,I,J,K,L)A(70) ECMF 011200
>     HH(A,B,C,D,I,J,K,L)A50 ECMF 011200
>     H(U,V)(A,B,C,D,I,J,K,L)A(20,50,85) ECMF 011200
> 2002/04/02
>     HP(A,B,C,D,I,J,K,L)A98 ECMF 011200
>     HR(A,B,C,D,I,J,K,L)A(70,85) ECMF 011200
>     HH(A,B,C,D,I,J,K,L)A50 ECMF 011200
>     HT(A,B,C,D,I,J,K,L)A85 EMCF 021200
>     H(U,V)(A,B,C,D,I,J,K,L)A(20,50,70,85) ECMF 011200

Brendon Hoch
International Research Institute for climate prediction
Lamont Doherty Earth Observatory of Columbia University
141/208 Monell, 61 Route 9W, Palisades, NY 10964
Phone: (845)680-4444 Fax:(845)680-4488

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As part of upgrading NCEP public servers, a survey was conducted of
non-NCEP data being made publicly available. The ECMWF data was flagged and
subsequently verified to contain restricted grids. Because of this, the
ECMWF grids were not made available on the new NCEP public servers
( and will soon be disabled on the old server as
part of it's normal retirement. We are investigating making a new ECMWF
that contains non-restricted grids, however, these grids will probably be a
(significant) small subset of what was previously being made available. This
new product will be what is made available on the public servers. Depending
when tgsv1 retirement, the ECMWF grids will either be disabled or replaced
the new non-restrictive product.

Luis Cano

"Hoeth, Brian" wrote:

> Hello Luis,
> I just talked to you on the phone regarding the ECM data.  Can you just
> me a quick email explaining why the ECM data is being removed from the
> FTP servers.
> Thanks!
> Brian Hoeth
> Sustaining S/W Engineering, Lockheed Martin
> Consolidated Space Operations Contract
> Office: 281-218-2240
> Pager: 281-613-1020
> Brian.Hoeth@xxxxxxxxxxxxxx

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