River Lemon- features

• River rises on Dartmoor, altitude of 400m- source on boggy marshland
• Average rainfall of 2000mm/year there
• several tributaries that contribute to the rivers discharge in the upper course- River Sig

Features observed

• V-shaped valley- formed by weathering (wearing away of rocks due to the action of weather, plants, animals and chemical processes), mass movement and vertical erosion 
• Gradient of the river channel- steep because of vertical erosion
• Channel Shape and Size- narrow because of all 4 erosion processes
• Sediment size- big- mass movement, transportation and deposition
• Water velocity- quick- erosion and transportation 
• small waterfalls- all erosional processes, geology and mass movement

• Altitude drops to 80m
• Rivers discharge has increased from 2.68 cumecs to 3.68 cumecs as tributaries have joined
• Bedload sizes decrease from 12cm to 8cm
• Velocity is the fastest here as less friction than in the upper course 

Features:

• Valley with a floodplain- lateral erosion, erosion, deposition and transportation
• Slightly less steep gradient- erosion and deposition- vertical erosion no longer the dominent force
• Channel Shape and Size- wider channel and is less deep- lateral more dominent than vertical
• Sediment size smaller as more attrition 
• Water velocity is quicker- erosion and deposition 
• Meanders- erosion and deposition 

• River flows through the town of Newton Abbot
• Channel is very heavily controlled by hard engineering- it flows underground through concrete pipes- this prevents flooding
• It eventually flows into the Teign estuary- tidal mudflats which are exposed at low tide
• Key process is deposition as velocity slows so energy lost- sediment is deposited at the mouth before entering the Sea at Lyme Bay
• The gradient has flattened and velocity slows