Dust Impacts on CloudsMichael J. Garay

Jet Propulsion Laboratory, California Institute of Technology

Pasadena, California, USA

http://www.thespaldingspirit.com/2012/03/03/the-global-warming-heat-flash/

http://climate.nasa.gov/keyIndicators/

Ice Mass from GRACE

http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/solact.html

http://www.ipcc.ch/

http://www.ipcc.ch/ Third Assessment Report (2001)

http://www.ipcc.ch/ Fourth Assessment Report (2007)

http://www.ipcc.ch/

http://www.ipcc.ch/

Note Change in

Scale

http://www.ipcc.ch/

http://www.ipcc.ch/

http://www.ipcc.ch/

Twohy et al., GRL, 2009

Dunion & Velden, BAMS, 2004 Evan et al., GRL, 2006

SAL No SAL

MODIS RGB Image MODIS Aerosol RetrievalMODIS Cloud Retrieval

MODIS Cloud + Aerosol

MISR Views of the Canary Islands

Nadir View +70.5° View

Pandis, Atmospheric Aerosol Processes, 2004

RainDrop

CloudDrop

CloudCondensation

Nucleus

Logarithmic Scale

NASA Terra EOS SatelliteMODIS, MISR, CERES, ASTER, MOPITTMulti-spectral, multi-angle, high-resolution

NOAA GOES SatelliteGOES Imager, GOES SounderBroadband imagery

NASA Aqua EOS SatelliteMODIS, AIRS, CERES, AMSR-E, AMSU-A, HSB Multi-spectral, “hyper-spectral”, multi-angle

NASA CloudSat SatelliteCPRCloud Profiling Radar

NASA CALIPSO SatelliteCALIOP, IIR, WFCLidar

CNES PARASOLPOLDERPolarization

NOT PICTURED

NASA Aura EOS SatelliteOMI, MLS, TES, HIRDLSUltra-violetNASA TOMS SatellitesTOMSUltra-violetNOAA Suomi NPPVIIRSMulti-spectral

A Selection of Satellite Instruments Used to Study Dust

NASA TRMM (EOS) SatellitePR, VIRS, CERES, TMI, LISPrecipitation Radar, multi-spectral/angle

An

Aa

Ba

Ca

Da

“Airplane Window” View

http://www.avo.alaska.edu/image_full.php?id=14333

Photo by Kelly Reeves flight attendant

during Alaska Airlines flights 160 and 161

MISR Df Camera, Orbit 45589

Da

http://www.ipcc.ch/

Mahowald et al., Ann. Rev. Mar. Sci., 2009

Discussion• Dust impacts on clouds is a cutting

edge research topic• The system is complex• Studying this system is at the limit

of the capabilities of the current generation of Earth remote sensing instruments