[Wrf-users] Calculating surface visibility from wrfout file

[CARLOS ROMAN CASCON]

Hi,

You can always use a formula to convert liquid water content (LWC) (QCLOUD)
at the lowest level into visibility. See for example the formulas given in
the next paper:

Kunkel BA. 1984. Parameterization of droplet terminal velocity and
extinction coefficient in fog models. J. Clim. Appl. Meteorol. 23: 34–41.

Best regards.

Carlos

2016-02-16 17:09 GMT+01:00 Tiago Luna <tiagoluna at ua.pt>:

> Some years ago I came across with this work:
>
>
> https://www.researchgate.net/profile/Ji_Woo_Lee/publication/277004271_Predictability_Experiments_of_Fog_and_Visibility_in_Local_Airports_over_Korea_using_the_WRF_Model/links/555d00b608ae8c0cab2a6aef.pdf
>
> Please take a moment to read it and search for some of it's references. I
> don't know if there is any recent work about this.
>
> Regards,
> Luna
>
>
> On 15-02-2016 05:27, Sundar J wrote:
>
> As the subject suggest, is there any formula exist for calculating surface
> visibility? I have seen some of the weather sites which shows the
> visibility plots (mostly from GFS as input data). Is there any way that to
> plot the surface visiblity parameter using parameters from wrfout file?
>
> I have read some of the some of the scientific paper which indicates none
> of the models has visibility as one of the output parameter. Why does it so?
>
> Regards
>
>
>
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