Brian Eaton wrote:
>Hi John,
>
>What is "model run time"? Is it the same as the standard name
>"forecast_period"?
>
>Brian
>
>On Tue, Oct 14, 2003 at 05:43:16PM -0600, John Caron wrote:
>
>
>>Forecast models have both a "model run" time and a "forecast" or "valid"
>>time. Is there any provision in CF to distinguish the two?
>>
>>If not, is there any inclination to do so?
>>
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>>
>>
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>
"model run" time : eg this is the ETA model that was run at 10/15/03 0Z
"forecast/valid" time: eg the ETA model does 3 hour forecasts out to 48
hours, so there are 17 forecast/valid times in the model output:
10/15/03 0Z, 3Z, 6Z, etc. out to 10/18/03 0Z
now the ETA model is run every 12 hours, so we have a collection of them:
model run time.........valid times................
10/15/03 0Z 10/15/03 0Z, 3Z, 6Z, etc
10/14/03 12Z 10/15/03 12Z, 15Z, 18Z, etc
10/14/03 0Z 10/14/03 0Z, 3Z, 6Z, etc
so, inside the file we have two variables, one is the model run time,
the other is the forecast times.
Received on Wed Oct 15 2003 - 10:40:55 BST
