GM8 CAT.OP.MPA.110 Aerodrome operating minima    

CAA ORS9 Decision No. 47

Text in magenta in force from 30 October 2025

LOW TEMPERATURE CORRECTION

  1. An operator may determine the aerodrome temperature below which a correction should be applied to the DA/H.

  2. Table 20 may be used to determine the correction that should be applied.

  3. The calculations in the table are for a sea-level aerodrome; they are therefore conservative when applied at higher-level aerodromes.

  4. Guidance on accurate corrections for specific conditions (if required) is available in PANS-OPS, Volume III (ICAO Doc 8168) Section 2 Chapter 4 First Edition, 2018.

Table 20

Temperature corrections to be applied to barometric DH/MDH

Aerodrome temperature
(°C)

Height above the elevation of the altimeter setting source (ft)

200

300

400

500

600

700

800

900

1 000

1 500

2 000

3 000

4 000

5 000

0

20

20

30

30

40

40

50

50

60

90

120

170

230

280

-10

20

30

40

50

60

70

80

90

100

150

200

290

390

490

-20

30

50

60

70

90

100

120

130

140

210

280

420

570

710

-30

40

60

80

100

120

140

150

170

190

280

380

570

760

950

-40

50

80

100

120

150

170

190

220

240

360

480

720

970

1 210

-50

60

90

120

150

180

210

240

270

300

450

590

890

1 190

1 500