The Nile Delta 5.0 / 5 based on 1 rating ? GeographyCoastal environmentsA2/A-levelOCR Created by: immywest5Created on: 28-05-18 20:33 what type of coastal environment is it? low energy 1 of 31 what is the length of the Nile? 6650 km 2 of 31 what is its catchment area? more than 3 million km squared 3 of 31 what is the mean annual rainfall? 600mm 4 of 31 what is the average discharge? less than 3000 metres cubed per second 5 of 31 where does a large proportion of the nile flow originate from? Ethiopia 6 of 31 what is the suspended sediment load distribution? 30% clay, 40% silt and 30% fine sand 7 of 31 What is the annual average sediment yield? 4.26 t/ha/year 8 of 31 The coastal plain occupies what part of the Nile Delta? northern part 9 of 31 where does it run? parallel to the Mediterranean coastline 10 of 31 what are the 3 distinct units of the coastal plain? the fore shore plain, the frontal plain and the sandy zone. 11 of 31 What is the foreshore plain characterised by? elongated ridges, running almost parallel to the present shoreline. Alternating with lagoons, salt marshes and alluvial deposits. 12 of 31 Where is the frontal plain located? South of the foreshore plain? 13 of 31 Describe the frontal plain. it has scattered eroded limestone outcrops and clay deposits. 14 of 31 What is the sandy zone composed of? composed of variety of different sand formations. e.g sheets, dunes and hummocks. 15 of 31 Where does the delta begin to split into distributes? At Cairo, more than 160 km inland. 16 of 31 When was the Aswan Dam constructed? 1964 17 of 31 Before construction of the dam, what was the depth of alluvial deposits? 4m at Aswan, 9.6m in Cairo region and even greater in delta itself. 18 of 31 what does wave action in the Mediterranean do? it redistributes the sediment at the front of the delta. 19 of 31 what does the redistributed sediment form? a series of curved barrier bars 20 of 31 What do the curved barrier bars do? close of segments of the Mediterranean sea to form lagoons. 21 of 31 where do winds prevail from over the Mediterranean sea for most the year? Northwesterly winds 22 of 31 what do these winds do? enhance the constant eastward movement of water and sediment. 23 of 31 what does the estimated surface current velocity range from in the summer? 9.26 - 13.5 cm/s 24 of 31 what is the estimated surface current velocity in the autumn? 4.46 cm/s 25 of 31 what is the estimated surface current velocity in the winter? 23.14 cm/s 26 of 31 what is the estimated surface current velocity in the spring? 8.4 cm/s 27 of 31 what are the nearshore features along the Nile Delta coast? underwater sand bars (typical of tide less seas) 28 of 31 what do the beaches west of Abu Qir headland contain? long crescentic bar systems 29 of 31 where do parallel longshore bars extend from and to? from east Abu Qir to Port Said. 30 of 31 what are crescentic bars of west Abu Qir associated with? rip currents and negligible longshore drift. 31 of 31
WATER -National and International conflict, Tanzania (River Ruaha) and The Nile 5.0 / 5 based on 1 rating
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