WATER - Climate changes effect on the hydrological cycle
- Created by: aliceoliviaaa
- Created on: 22-05-18 19:13
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- Climate changes effect on the Hydrological cycle
- Precipitation
- warmer atmosphere=greater water capacity
- mode of precipitation is more important than amount
- high latitude and tropics amount increases (& 10* - 30* north and south of the equator).
- length + frequency of heatwaves increasing means increased drought occurrences.
- more rain than snow in northern regions
- Evaporation and Evapo-transpiration
- evaporation over Asia and N.America ^^
- Transpiration linked to plant changes which is linked to soil changes.
- Soil Moisture
- As climate increases, precipitation increases leading to an increase of soil moisture.
- INPUTS + OUTPUTS
- Evaporation and Evapo-transpiration
- evaporation over Asia and N.America ^^
- Transpiration linked to plant changes which is linked to soil changes.
- Precipitation
- warmer atmosphere=greater water capacity
- mode of precipitation is more important than amount
- high latitude and tropics amount increases (& 10* - 30* north and south of the equator).
- length + frequency of heatwaves increasing means increased drought occurrences.
- more rain than snow in northern regions
- Soil Moisture
- As climate increases, precipitation increases leading to an increase of soil moisture.
- Evaporation and Evapo-transpiration
- FLOWS + STORES
- reservoir, lake and wetland storage
- storage decreases as temperatures increase.
- groundwater flow
- uncertain due to abstraction by humans.
- soil moisture
- higher evaporation and precipitation cancelling each other out.
- surface runoff and stream flow
- more low flows and high flows (droughts and floods)
- increased runoff and reduced infiltration
- permafrost
- methane released from thawed lakes may accelerate change.
- snow
- spring melt starting earlier meaning less snow coverage yearly. (store decrease).
- glacier ice
- since 1970's, evidence of thinning glaciers.
- less accumulationas more precipitation as rain.
- a decreasing store
- oceans
- rising sea levels from melting glaciers and thermal expansion
- ocean warming may lead to more cyclones
- 2015 - highest surface temperatures ever recorded in Central Pacific. More evaporation
- reservoir, lake and wetland storage
- Precipitation
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