WaterCycle
- Created by: dilys W
- Created on: 25-03-20 10:04
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- Water Systems
- Hydrological Cycle
- Evaporation
- water heating into water vapour
- Rate of evaporation depends on...
- Closeness of air to saturation
- Availability of water
- Temperature high means air holds more water
- Solar Radiation
- Wind speeds
- Rate of evaporation depends on...
- water heating into water vapour
- Infiltration
- Water seeping into top layers
- Throughflow
- horizontal flow of water within soil layer
- Surface runoff
- Water flow on surface
- Groundwater flow
- Deep below surface horizontal flow, slow
- Precipitation
- Rain, snow, hail etc
- Percolation
- gravity flow of water wihtin soil
- Condensation
- Water vapour cooling into liquid
- Warm, moist air passes over cold surface
- Clear night, warm space air, radiates out to space and cools ground
- Volume of air increases no additional heat
- Warm, moist air passes over cold surface
- Water vapour cooling into liquid
- Stemflow/interception
- trees intercepting and collecting water
- Transpiration
- Leaves expellng water vapour
- Evaporation
- Global Stores
- Lithosphere
- Land
- Cryosphere
- Ice
- Cryospheric processes
- frozen water or glaciers changing over long and short periods of time
- Eg. Snow falling atop glaciers accumulating, compressing and becoming long term storage.
- Short term would involve the snow melting.
- Eg. Snow falling atop glaciers accumulating, compressing and becoming long term storage.
- Ice calving
- breaking of ice chunks from edge of glacier
- frozen water or glaciers changing over long and short periods of time
- Cryospheric processes
- Ice
- Atmosphere
- Air
- Hydrosphere
- Liquid
- Biosphere
- Connects all- plants and animals, living.
- Lithosphere
- Aquifers
- A body of permeable rock which contains groundwater
- Over 30% of water is stored underground in these reservoirs
- Jakarta, the sinking city is taking too much out of theirs so the land is sinking.
- Over 30% of water is stored underground in these reservoirs
- Rock types?
- Sandstone (P)
- Chalk
- Limestone
- Why do some aquifers become Saline?
- Sea water seeps in/ become inundated eg Kiribati
- Increasing issue due to climate change and increased sea levels.
- Sea water seeps in/ become inundated eg Kiribati
- Fossil Aquifera
- Aquifers that are not replenished ie in sahara due to no rainfall.
- A body of permeable rock which contains groundwater
- Causes for Flooding
- Natural
- relief rainfall
- Glacial meltwater
- thin or saturated soils
- Steep slopes
- high drainage density- lots of tributaries
- inpermeable rock- geology
- antecedent rainfall (rain previous to this rain)
- Low lying Land
- Human
- climate change and increased rainfall
- Deforestation- less interception
- and rver silting from loose soils
- urban drainage
- Impermeable Surfaces
- Farming- loss of natural water stores
- Natural
- Hydrological Cycle
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