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A simple and computationally efficient objective tracking technique is used to assess the representation of African Easterly Waves (AEWs) in the Met Office Unified Model (MetUM). The algorithm takes Hovmöller diagrams of curvature vorticity at 700 hPa and uses object‐orientated image processing to identify the propagating waves. We use the tracking to evaluate how well AEWs are captured by the MetUM...
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