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Home > Exam Questions > ATPL - Airline Transport Pilot Licence > Meteorology > A wind sounding near a Northern Hemisphere polar-front jet gives this profile: 900 hPa 220°/20 kt; 800 hPa 220°/25 kt; 700 hPa 230°/35 kt; 500 hPa 260°/60 kt; 400 hPa 280°/85 kt; 300 hPa 300°/100 kt; 250 hPa 310°/120 kt; 200 hPa 310°/80 kt. Assuming approximately geostrophic flow above the friction layer, which idealised frontal-advection pattern is most consistent with the veering wind above that layer?

569 - ATPL Question Bank in English - A wind sounding near a Northern Hemisphere polar-front jet gives this profile: 900 hPa 220°/20 kt; 800 hPa 220°/25 kt; 700 hPa 230°/35 kt; 500 hPa 260°/60 kt; 400 hPa 280°/85 kt; 300 hPa 300°/100 kt; 250 hPa 310°/120 kt; 200 hPa 310°/80 kt. Assuming approximately geostrophic flow above the friction layer, which idealised frontal-advection pattern is most consistent with the veering wind above that layer?

Question 569 - Meteorology - ATPL - Airline Transport Pilot Licence

Equatorial trade-wind convergence in the ITCZ, with predominantly easterly winds at the listed levels.

Cold advection, as commonly found behind a cold front in the Northern Hemisphere.

A tropical easterly-wave pattern dominated by easterly flow at the listed levels.

Warm advection, as typically found ahead of a warm front in the Northern Hemisphere.

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