Term 1-drainage basin

Question 1

Define condensation

Answer 1

Process where water vapour changes to liquid water.

Question 2

What are cryospheric processes?

Answer 2

processes that affect the total mass of ice

Question 3

What is a drainage basin?

Answer 3

area that supplies a river with its supply of water.

Question 4

Define evaporation

Answer 4

the process where liquid water changes to a gas.

Question 5

define evapotranspiration

Answer 5

total output of water from the drainage basin directly back into the atmosphere

Question 6

What is groundwater flow?

Answer 6

slow movement of water through underlying rocks

Question 7

Define infiltration

Answer 7

downward movement of water from surface into soil

Question 8

what is an interception store

Answer 8

precipitation that falls on the vegetation surfaces or human-made cover is temporarily stored on these surfaces.intercepted water can either be evaporated directly into the atmosphere absorbed by canopy surfaces or transmitted to the ground surface.

Question 9

what is overland flow

Answer 9

tendency of water to flow horizontally across land surfaces when rainfall has exceeded infiltration capacity of the soil and and all surface stores are overflowing

Question 10

what is percolation

Answer 10

downward movement of water within the rock underneath the soil surface.

Question 11

define run-off

Answer 11

all the water that enters a river channel and flows out of the drainage basin.

Question 12

define stemflow

Answer 12

precipitation intercepted by the canopy that reaches the ground by flowing down stems or stalks.

Question 13

define throughfall

Answer 13

precipitation that reaches the ground directly through gaps in vegetation canopy and drips from leaves,twigs and stems

Question 14

define transpiration

Answer 14

loss of water from vegetation through pores on their surfaces

Question 15

what is water balance

Answer 15

balance between inputs and outputs in a drainage system.