At a certain location with latitude Φ = 45°N, the horizontal gradient of sea level pressure is 5 mb per 100 km. What is the geostrophic wind speed at this location? (Assume density of air ρ = 1.25 kg m-3 and angular velocity of earth ω = 7.29 × 10-5 rad/s, with sin(45°) ≈ 0.707)

A geostrophic wind is produced when the pressure gradient force is balanced by:

How does a gradient wind fundamentally differ from a geostrophic wind in atmospheric dynamics?

Match the items in List I with their descriptions in List II: List I A. Coriolis Force B. Pressure Gradient Force C. Frictional Force D. Geostrophic Wind List II 1. Acts perpendicular to wind direction in the northern/southern hemispheres 2. Directly caused by spatial differences in atmospheric pressure 3. Opposes atmospheric motion primarily near the Earth's surface 4. Results from a theoretical balance between PGF and Coriolis force Select the correct match: