River Wye Drainage Basin Flashcards
1
Q
the river course is…….km long
A
250km
2
Q
- the upper basin has been heavily………..leading to…………..
- the upper basin’s geology is mainly…………meaning………………
- in the upper course, precipitation is ……………..
A
- heavily farmed, so deforestation and the digging of ditches leads to reduced lag time due to shorter lad times and funnelling of water into water channels
- geology is mainly impermeable such as mudstone and shale, meaning infiltration is low and so water swells the river channel early on
- precipitation levels are high in the upper course
3
Q
- the middle and lower basin has a ……………..geology meaning…………..form
- here temperatures are…………….meaning……………
A
- geology is more permeable, such as Old Red Sandstone, so many aquifers have formed, creating stores for water delivered from upstream and so creates a state of equilibrium in the system
- higher temperatures mean higher evapotranspiration levels, meaning equilibrium is preserved as the output matches the input early on in the course