River exe

Cards (40)

  • What is the name of the river that flows from Exmoor to Exmouth?
    River Exe
  • Where does the River Exe flow from and to?
    It flows from Exmoor South to Exmouth
  • What type of rainfall is characteristic of the upper course of the River Exe?
    High gradient rainfall
  • What is a notable feature of the middle course of the River Exe?
    Steep-sided valleys
  • What is a characteristic of the lower course of the River Exe?
    Urbanized area
  • What is the significance of tributaries in the River Exe's drainage area?
    They contribute to a high drainage area
  • When does the River Exe experience high discharge?
    In winter
  • What is the discharge level of the River Exe like in summer?
    Low
  • What does the hydrograph of the River Exe indicate?
    It shows high discharge in winter
  • What is a characteristic of the drainage basin of the River Exe?
    High median altitude
  • What is the median altitude of the River Exe's drainage basin?
    17 cm
  • What role does woodland play in the River Exe's drainage basin?
    It contributes to interception
  • What percentage of the River Exe's drainage basin is farmland used for grazing?
    80%
  • What is the urbanization percentage in the River Exe's drainage basin?
    45%
  • What type of rock predominates in the River Exe's drainage basin?
    95% impermeable rock
  • How does urbanization affect flood risk in the River Exe area?
    It increases flood risk
  • What agricultural practice contributes to nutrient runoff in the River Exe's drainage basin?
    Romaff lerosion
  • What nutrients are primarily involved in runoff from agriculture in the River Exe area?
    Nitrogen and phosphorus
  • What is the purpose of water abstraction in the River Exe area?
    Public supply
  • What is the purpose of flood relief channels in the River Exe area?
    To protect urban areas
  • What is a benefit of restoring moorland drainage ditches?
    They help retain more water
  • What is the aim of restoring moorland drainage ditches in the Exe catchment?
    To reverse negative impacts
  • What is the purpose of rewetting peatlands in the River Exe area?
    To slow down runoff
  • What environmental benefit does peat provide?
    It sequesters carbon
  • How does rewetting peatlands affect flood risk mitigation?
    It retains more water
  • What overall benefit does improving peatland health provide?
    Improves hydrological and ecological health
  • When was the Wimbleball Reservoir constructed?
    1974-79
  • What river does the Wimbleball Reservoir dam?
    River Haddeo
  • How much water can the Wimbleball Reservoir hold?
    21,900 mega litres
  • What is the purpose of the dam at Wimbleball Reservoir?
    To regulate water supply for Exeter
  • How does the dam at Wimbleball Reservoir control the flow of the River Exe?
    By releasing water during low flow periods
  • What is one of the benefits of water supply management at Wimbleball Reservoir?
    Flood risk reduction
  • What are the environmental benefits of the Wimbleball Reservoir?
    It provides ecological benefits
  • What does "Romaff lerosion" likely refer to in the context of agriculture?
    It likely refers to soil erosion caused by agricultural practices.
  • What does "Dlock drainage ditches" likely refer to in the context of the River Exe?
    It likely refers to blocked drainage ditches that need restoration.
  • What does "fem Lots of surface" likely refer to in the context of runoff?
    It likely refers to the increased surface runoff due to urbanization.
  • What does "piblic Supph" likely refer to in the context of water abstraction?
    It likely refers to public supply of water.
  • What does "agricuitoneal inigua" likely refer to in the context of flood protection?
    It likely refers to agricultural land use practices that affect flood risk.
  • What does "water supply regulated for exete by dam" likely refer to?
    It likely refers to the regulation of water supply for Exeter by the dam.
  • What does "as wull as controling flow of River exe" likely refer to?
    It likely refers to the dam's role in controlling the flow of the River Exe.