1) A drainage basin is the area surrounding a river where the rain falling on the land flows into that river. The boundary of a drainage basin is the watershed, where any precipitation falling beyond the watershed enters a different drainage basin. 2) Inputs; Precipitation // Outputs; Transpiration, Evaporation, River Discharge, Evapo-transpiration 3) Interception is when some precipitation lands on vegetation or other structures such as buildings, concrete and tarmac surfaces, before it reaches the soil. Interception creates a significant store of water in wooded areas. Interception storage is temporary because the collected water evaporates quickly. 4) Baseflow is groundwater flow that feeds into rivers through river banks and river beds. 5) There would be a water surplus as the ground store recharge has taken place and whilst Precipitation continues to take place, the ground is too saturated to absorb the water, creating a surplus. 6) River discharge is measured by the cross-sectional area of the channel multiplied by the velocity of the water. 7) Precipitation, hot weather and the removal of water affect river discharge. 8) A) The lag time is 20 minutes.
B)
C) The steep slopes meant that the precipitation travelled fast downhill to the river, without much infiltration, which is what causes the short lag time and extremely tall rising limb. The impermeable geology would also have contributed to this, as well as the sparse woodland, as there would be little vegetation and interception storage.
D) There was a large amount of precipitation is a relatively short period of time, causing the high peak discharge.
9) Hydraulic action (pressure of the water breaks rock particles away from the bed and banks), Abrasion (eroded pieces of rock in the water scrape and rub against the bed and banks, removing material), Attrition (eroded