[idvusers] conversion of specific to relative humidity or dew-point temperature

Hi

I am looking for a conversion of fields of specific humidity to relative humidity or dew-point temperature. Has somebody already implemented this in IDV?

Thanks for a good answer, HP

begin:vcard
fn:HansPeter Roesli
n:Roesli;HansPeter
org:Satellite Meteorology Consultant
adr;quoted-printable:;;via Monte Br=C3=A8 5;Locarno;;CH-6605;Switzerland
email;internet:satmet.hp@xxxxxxxxxx
tel;work:+4179 292 0706
tel;home:+4191 751 3650
tel;cell:+4179 292 0706
url:www.eumetsat.int
version:2.1
end:vcard