1.2.b The River Nile Delta 0.0 / 5 ? Geography1 CoastsA2/A-levelOCR Created by: lee8444Created on: 30-01-20 08:10 Physical factors influencing coastal landforms Low energy environment Fluvial deposition has exceeded marine erosion for over 3000 years Due to tideless coast decreasing eriosion High amounts of sediment carried from River Nile These physical factors are beginning to change due to human fcators Catchment of 3,000,000km2 Annual rainfall of 600mm Discharge is less than 3000m3 per second 91.3 million tonnes of sediment North-Westerly winds causing longshore drift heading East 1 of 3 The inter-relationship of landforms Delta begins to split 160km inland Aswan Dam constructed in 1964 in Southern Egypt Wave action redistributes sediment into two lobes extending past the delta Lobes create lagoons which become filled with fine sediment Sand bars - typical of tideless seas West of Abu Qir headland there is cresentic bar systems due to rip currents and no longhsore dift Parallel longshore bars exist from Abu Qir headland to Port Said due to LSD 2 of 3 Changes to the Nile Delta Since the Aswan Dam was built, the rates of erosion and deposition have chnaged dramatically Rapid reduction in sediment deposition at the Delta from 120 million tonnes per year to trace amounts now Rising sea levels of 1.2mm per year have also increased wave power increasing the rates of erosion All of this has led to retreats of 148 metres per year 3 of 3
WATER -National and International conflict, Tanzania (River Ruaha) and The Nile 5.0 / 5 based on 1 rating
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