About Number in Udara Atas

 850mb= 5000feets

700 mb=10000 feets

500 mb=19000 feets

400 mb=25000 feets

300 mb=31000 feets

250 mb=37000 feets

200 mb=41000 feets

150 mb=47000 feets

100 mb=55000 feets

70 mb=61000 feets

50 mb=67000 feets

30 mb=78000 feets

20 mb=86000 feets

10 mb=95000 feets

Kode alat :

0=Rawin sonde

1=Theodolite optic

2=Radio theodolite

3=Radar

4=alat gagal

Dn = ((2n-1)250 ctg El):202.67

X = Sin Az*Dn

Y = Coz Az*Dn

Tg α = ∆y/∆x