WCC4:Cloudsandclimatechangedelftxdownloads.tudelft.nl/CTB3300WCx-Water-Climate/Week...
Transcript of WCC4:Cloudsandclimatechangedelftxdownloads.tudelft.nl/CTB3300WCx-Water-Climate/Week...
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Prof.dr.ir. Herman Russchenberg
WCC 4: Clouds and climate change
CTB3300WCx: Introduc2on to Water and Climate
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Release of latent heat
Cloud forming
Condensa2on level
Height
A
B
C
Parcel with air and water vapour
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Clustering
H2O
Cluster of water molecules
Water molecule Cannot enter the cluster
H2O H2O
H2O
H2O H2O H2O
H2O
H2O
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Aerosols
Aerosol
H2O H2O
H2O
H2O
H2O
H2O
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A bit more on cloud forma;on
No aerosols A few aerosols Many aerosols
Clouds
Condensa8on level
Moist air parcels
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Aerosol-‐cloud interac;ons
More aerosols ! Delayed rainfall ! Longer cloud life8me
! Sustained impact on radia8on
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Global warming: state of the art
Response of the earth
Addi2o
nal w
arming
Direct warming due to CO2
Radia5ve effects
Water vapor feedback
Surface albedo feedback
Cloud feedback
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Global warming, cloud response
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How to solve this problem?
Models Observa2ons
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Prof.dr.ir. Herman Russchenberg
WCC 4: Clouds and climate change
CTB3300WCx: Introduc2on to Water and Climate