19991115: quick hght ?

Matt,

hght@8000%sgma is height at the .80 sigma level.

Sigma is defined as PRES / PSFC. Eg, .8 sigma is the
height at which the pressure of a point divided by the 
surface pressure at the point is .80.

Steve Chiswell



>From: Matt Fearon <address@hidden>
>Organization: Desert Research Institute
>Keywords: 199911152257.PAA00309

>Steve,
>
>hght@0%none is elevation of the grid point.
>
>hght@8000%sgma, would that be the height above
>ground or would it be the height above mean sea level;
>meaning to get the height above ground the following
>calculation would have to be performed:
>
>hght (agl) = hght@8000%sgma - hght@0%none ?
>
>Your advice would be greatly appreciated.
>Thank you,
>
>Matt Fearon
>address@hidden
>
>
>
>