A) draw a well labelled diagram showing the balance of forces and the wind for gradient flow in the northern hemisphere indicating whether the system is a high or low for the following conditions r < 0,%< 0 and r < 0, a%. > 0. indicate whether your systems are baric or antibaric. дп 72 (8 marks) (b) using the appropriate equation show that the geostrophic wind overestimates the wind for cyclonic flow. (4 marks) (c) in a region 50 km out from the centre of a hurricane at 15° latitude -3.7x10 the contour gradient is 400m per 100km. calculate the geostrophic and gradient wind speeds for the flow. (g= 9.8ms') (8 marks)