Iain Russell wrote:
>
> Hi
>
>
>
> I am interpreting qp-ra and qp-sn as instantaneous hourly values of
> precipitation amount (i.e. **not** accumulated since the initial start
> time of the model). Is this correct ?
>
>
>
>
Hi Iain,
"qp-sn" and "qp-ra" correspond respectively to "Total snow precipitation
(cm)" and "Total rain precipitation (mm)" in the period (that is what
was not clear), i.e. in the hour.
So an output of "0.1" in the "qp-sn" field would mean that 0.1 cm of
snow had felt on the ground during the hour where you would find this
number. These output are computed from the atmospheric forecast ("sn"
and "ra" fields).
I have updated the documentation (added "1 hr" in the field for
rain/snow precip) to make it clearer:
http://documentation.wikia.com/wiki/Output_roadcast_%28METRo%29#Road_forecast
Miguel
--
Miguel Tremblay
Physicien - Physicist
Centre météorologique canadien - Canadian meteorological centre (CMC)
Environnement Canada - Environment Canada
http://www.ec.gc.ca/
2121 Trans-Canada N. Suite 228 Téléphone/Phone: 514-421-4729
Dorval, Québec Fax: 514-421-4679
CANADA H9P 1J3 courriel/email: [EMAIL PROTECTED]
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