View Full Version : Atis RVR abbreviation?
protect essential
13th Mar 2011, 04:32
Recently saw this abbreviation on Atis: 650D and 700N. What does the "D" and "N" mean?? BTW, this was in China
Thanks.
Mohit_C
13th Mar 2011, 08:11
I understand it as RVR of 650 metres with a tendency to decrease(D) and RVR of 700 metres with a tendency to not change/stay constant (N).
Green Guard
13th Mar 2011, 08:58
that was in China ?
I would believe, if it came like :
六百五十減少,七百沒有變化
zonnair
15th Mar 2011, 06:49
and U = for tendency to increase :ok:
ron83
15th Mar 2011, 16:48
D= Downward tendency
U= Upward tendency
N= Neutral tendency