Neco 2017 Geography Question 4

Practice practical question 4 from the 2017 Neco Geography examination. This question covers Weather, Synoptic Chart, Geostrophic Wind, Front Identification .

Neco 2017 Geography Practical

Topics: Weather Synoptic Chart Geostrophic Wind Front Identification

Question 4 NECO • 2017 • GEOGRAPHY • practical

During a field observation on 15 March, the following synoptic data were recorded at two stations situated 500 km apart along a north‑south line. Station A (northern station): - Pressure = 1010 hPa - Temperature = 25°C - Wind direction = from the North‑East (45°) Station B (southern station): - Pressure = 990 hPa - Temperature = 20°C - Wind direction = from the South‑East (135°) The latitude of the line is approximately 30° N.

Question Parts

( a )

Calculate the pressure gradient (Δp/Δx) in pascals per metre (Pa m⁻¹) between the two stations.

( b )

Assuming geostrophic balance, compute the geostrophic wind speed using the formula V = (1 / ρ f) · (Δp/Δx) where air density ρ = 1.2 kg m⁻³ and the Coriolis parameter f = 2Ω sin φ with Ω = 7.292 × 10⁻⁵ s⁻¹ and φ = 30°. Show all intermediate calculations and give the speed in metres per second (m s⁻¹) to the nearest whole number.

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About This Question

This is Neco 2017 Geography Question 4. It is one of the practical questions from the 2017 Neco Geography examination.

The question covers Weather, Synoptic Chart, Geostrophic Wind, Front Identification .

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