Aerosoles radiation clouds
25
1 March 2012 Challenge the future Delft University of Technology Clouds and Climate Harm Jonker
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'Aerosoles, clouds and radiation' is one of the research topics of TU Delft Climate Institute. Prof Harm Jonker explained why this is so at the kick-off on March 1st 2012. Be sure to check the simulations - and more - on the YouTube channel of the Atmospheric Physics group (links included in this presentation.
Transcript of Aerosoles radiation clouds
1 March 2012
Challenge the future
DelftUniversity ofTechnology
Clouds and Climate
Harm Jonker
Watch the simulation on YouTube: http://youtu.be/1JpOKO6lrtE
Jerome Schalkwijk, TNW EWI: Eric Griffith, Frits Post
Watch the simulation on YouTube: http://youtu.be/mIUNRjBLIyQ
EWI: Gerwin de Haan
Jerome Schalkwijk, TNW EWI: Gerwin de Haan
Webcam CabauwMeteo site KNMI
3D Simulation on a GPU
Pier Siebesma, Roel Neggers, Jerome Schalkwijk
Pier Siebesma, Roel Neggers, Jerome Schalkwijk
KNMIDelft University of Technology
Wageningen University and ResearchUtrecht University
RIVMECN
TNO European Space Agency
CESAR Consortium
Groeten uit Cabauw
Herman Russchenberg
Cesar Observatory
A look inside the cloudsAtmospheric properties: gases, aerosols
clouds, rain, wind, thermo-dynamics, radiation
lidar radar
time
heig
ht
short wavelength long wavelength
Many small water drops
Ice crystals
Herman Russchenberg, Yann Dufournet
Cloud water and its shadowDistribution of water in the cloud
[g/m^3]
Amount of sunlight at the surface [W/m^2]
Courtesy of Christine Brandau, Simone Placidi, Dave Donovan, Wouter Knap
Clouds and Climate
• Hydrological cycle
• Radiation balance
Dufresne & Bony, Journal of Climate 2008
IPCC, 2007
Misty Factors in the Climate …
2x CO2 scenario
Dufresne & Bony, Journal of Climate 2008
Radiative effects only
Water vapor feedback
Surface albedo feedback
Cloud feedback
IPCC, 2007
2x CO2 scenario
Misty Factors in the Climate …
Landsat 65km
LES 10km
~mm ~100m~1mm-100mm
Earth 107 m
~ 100km LES 10km
~mm ~100m~1mm-100mm
Earth 107 m
LES 10km
~mm ~100m~1mm-100mm
Earth 107 m ~ 100km
EU-FP7 project Euclipse (Pier Siebesma et al)
Ship tracks
Effects of Aerosol Particles on Climate
• Development of experimental systems/instruments for high time-resolution
• Counting sub-5 nm Particles
• Measuring Particle Size and Shape
• Determining Particle Hygroscopicity
• Laboratory and Field Measurements• Understanding nucleation
• Determining the direct and indirect effect of aerosols on climate
TNW: George Biskos, A. Schmidt-Ott
Laboratory and Field Measurements of Aerosol Hygroscopicity
Hygroscopic growth of laboratory-generated 10-nm Ammonum Sulfate as a function of Relative Humidity (RH)
Airborne measurements of the hygroscopic growth of particles observed over the Aegean Sea
TNW: George Biskos, A. Schmidt-Ott
FINEDUSTREDUCTION.COM
0 . 7
6
m
Positief geladen schermen electrode
• 24 frames (6m lengte)• 4 frames (variant van de lengte)
Receptor geaarde schermen
- 24 frames over 900 m6
m
16 m
Thomassentunnel:
TNW/Botanical garden: Bob Ursem
Chicken Farm Application
TNW/Botanical garden: Bob Ursem
TNW/Botanical garden: Bob Ursem
extreme weather
city climate
geo-engineering
cloud-climate feedback
