2008 Aerosol Update
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2008 Aerosol Update Goddard Space Flight Center Peter Colarco, Code 613.3 Robert Levy, SSAI/Code 613.2 Santiago Gassó, GEST/Code 613.2 Ellsworth Welton, Code 613.1 Tom Eck, GEST/Code 614.4. Update Agenda. Purpose What is Aerocenter? What have we been up to?

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2008 Aerosol Update Goddard Space Flight Center Peter Colarco, Code 613.3

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2008 aerosol update goddard space flight center peter colarco code 613 3

2008 Aerosol Update

Goddard Space Flight Center

Peter Colarco, Code 613.3

Robert Levy, SSAI/Code 613.2

Santiago Gassó, GEST/Code 613.2

Ellsworth Welton, Code 613.1

Tom Eck, GEST/Code 614.4


2008 aerosol update goddard space flight center peter colarco code 613 3

Update Agenda

PurposeWhat is Aerocenter?

What have we been up to?

What do we think about the future?

ContextSynthesis talks around four science questions

  • How is the atmospheric aerosol changing on global andRalph Kahn

    regional scales?

  • How do aerosols affect storms and the hydrologic cycle?William Lau

  • How do aerosols and clouds affect the polar climate?Dorothy Koch

  • How do aerosols affect air quality, the human environment, Mian Chin

    and natural ecosystems?

    Wrap-UpWhere do we go from here?

  • Summary Robert Levy

  • Additional Aerosol/Cloud/Ecosystem (ACE) Concept StudiesMark Schoeberl


History of aerocenter

History of Aerocenter

  • Yoram Kaufman proposed the idea for Aerocenter as a Center of Excellence for Aerosol Research in an unsolicited proposal to NASA HQ in August 2000

    • data center for distributing data and tools

    • organize the people already here in a cross-disciplinary way

    • visitor’s program to provide constant new people and ideas to Goddard

  • Coincided with Franco Einaudi’s cross-cutting themes for Earth Sciences Division

  • Seminar series began in 2001

  • Visitor program funded for 2002

  • First Aerosol Update in 2003

  • Web site: http://aerocenter.gsfc.nasa.gov

  • Email list: 170 subscribers

    ⅓ NASA, ⅓ GEST, ⅓ other

  • Bi-weekly seminar series, paper discussions


Aerosol levers on climate system

Aerosol Levers on Climate System

Aerosols

IPCC AR4 Working Group, 2007


Aerosol compositional challenge

Aerosol Compositional Challenge

Species:

Sulfate - SU

Nitrate - NO3

Ammonium - NH4

Water - H2O

Black carbon - BC

Organic carbon- OC

Dust - DU

Sea Salt - SS

nucleation

condensation

coagulation

coagulation

DU

SS

SU

NO3

H2O

BC

OC

SU

NO3

NH4

H2O

BC

OC

SU

NH4

NO3

H2O

DU

SS

Nucleation

mode

Coarse modes

Accumulation modes

0.01 mm

0.1 mm

1 mm

10 mm

Particle radius

Bauer et al, submitted to Atmos. Chem Phys. 2008: The Multiconfiguration Aerosol TRacker of mIXing state MATRIX, an aerosol microphysical module for global atmospheric models


2008 aerosol update goddard space flight center peter colarco code 613 3

Aerosol Models

  • Fill in temporal and spatial gaps in our observations (assimilation)

  • Inform selection of measurement strageties (OSSEs)

  • Short-term chemical weather forecasting (mission support)

  • Prediction of future climate

Collaboration of NASA GSFC Atmospheric Chemistry and Dynamics Branch and Global Modeling and Assimilation Office (GMAO)

Quick-look forecasts products available at a web site: http://hyperion.gsfc.nasa.gov/People/Colarco/Mission_Support


2008 aerosol update goddard space flight center peter colarco code 613 3

Models Need Data

Evaluate models

Say something about climate

Huisheng Bian, GEST-UMBC/NASA GSFC Code 613.3


2008 aerosol update goddard space flight center peter colarco code 613 3

Synergy of Models and Data

FRP(MW)

1660

1383

1106

830

553

276

0

Terra-MODIS measurement of Fire Radiative Power (FRP) on 26-Oct-2003.

Smoke emissions proportional to fire radiative power

C. Ichoku, L. Giglio, M. J. Wooster, and L. A. Remer, Global characterization of biomass-burning patterns using satellite measurements of Fire Radiative Energy. Remote Sens. Environ., (In Press), 2008.


Cloud albedo effect

Cloud Albedo Effect

Volcanic “ship tracks” – a natural laboratory for studying the indirect effect

Gassó, S. (2008), "Satellite observations of the impact of weak volcanic activity on marine clouds" , J. Geophys. Res., 113, 27, doi:10.1029/2007JD009106. (In Press, Kaufman Special Issue)


2008 aerosol update goddard space flight center peter colarco code 613 3

Cloud Susceptibility

Cloud Effective Radius

1.2

1.0

0.8

0.6

0.4

MODIS Terra Susceptibility October 2005

0.2

0

Cloud albedo response to changes in cloud microphysics

Susceptibility is correlated with larger cloud droplet effective radius

Global TOA flux change for

N=1cm-3, LWC=0.3 gm-3

Susceptibility/cloud fraction relations are important!

Platnick, S. and L. Oreopoulos, 2008: The radiative susceptibility of cloudy atmospheres to droplet number perturbations, Part I: Theoretical analysis and examples from MODIS. J. Geophys. Res. ( in revision for Kaufman special issue).

Oreopoulos, L. and S. Platnick, 2008: The radiative susceptibility of cloudy atmospheres to droplet number perturbations, Part II: Global analysis from MODIS. J. Geophys. Res. (in revision for Kaufman special issue).


2008 aerosol update goddard space flight center peter colarco code 613 3

Aerosols and Clouds

J.V. Martins, Department of Physics – UMBC/ NASA GSFC Code 613.2

Alexander Marshak, Robert Cahalan, NASA GSFC Code 613.2


2008 aerosol update goddard space flight center peter colarco code 613 3

Aerosol Composition

Hygroscopic Growth in Amazonian Smoke

J.S. Schafer, Eck T.F., Holben B.N., Artaxo P.,Duarte A.F., Characterization of the optical properties of atmospheric aerosols in Amazônia from long-term AERONET monitoring [1993-95;1999-2006], J. Geophys. Res., 2007JD009319, in Press.


2008 aerosol update goddard space flight center peter colarco code 613 3

Aerosol Composition: Aerosol Absorption in Desert Dust

Eck, T.F., B. N. Holben, J. S. Reid, A. Sinyuk, O. Dubovik, A. Smirnov, D. Giles, O’Neill, N.T., S.-C. Tsay, Q. Ji, A. Al Mandoos, M. Ramzan Khan, E. A. Reid, J. S. Schafer, M. Sorokine, W. Newcomb, and I. Slutsker. Spatial and Temporal Variability of Column Integrated Aerosol Optical Properties in the Southern Arabian Gulf and United Arab Emirates in Summer, In Press, Journal of Geophysical Research-Atmospheres.


2008 aerosol update goddard space flight center peter colarco code 613 3

Combining Data Sources

D12

Atmospheric correction to retrieve surface

Surface reflectance to retrieve atmosphere

Sinyuk, A., O. Dubovik, B. Holben, T.F. Eck, F-M Breon, J. Martonchik, R. Kahn, D. J. Diner, E. F. Vermote, J-C Roger, T. Lapyonok, and I. Slutsker, Simultaneous retrieval of aerosol and surface properties from a combination of AERONET and satellite, Rem. Sens. of Env., 107, 2007, doi:10.1016/j.rse.2006.07.022.


2008 aerosol update goddard space flight center peter colarco code 613 3

Joint retrieval of lidar and sun photometer

Aerosol size distribution measured by lidar at three altitudes

NOAA Airborne

Aerosol Observatory

Joint Lidar/AERONET Vertical Composition Information

Active and Passive Aerosol Physical Property Measurements, Inverse Retrieval Studies and In-Situ Validation, Investigators: Whiteman/GSFC, Veselovskii/UMBC, Ogren/NOAA, Andrews/CIRES, Collaborators: Sinyuk/SSAI, Dubovik/CNRS, Holben/GSFC, Ferrare/LaRC, Hostetler/LaRC, Müller/IfTP, GermanyRecently funded by NASA Radiation Sciences Program

AERONET gives you total columnar information.

Lidar gives you the vertical information

Raman Lidar Lab

B33/F421B

Validation campaigns with NOAA AAO, 2009 and 2010


2008 aerosol update goddard space flight center peter colarco code 613 3

Aerosol Composition: Enhanced UV Aerosol Absorption

Black Carbon: TAU_ABS ~ -1

Shadowband

Shadowband

TAU_ABS  as SSA 

  • Measurements reveal

  • aerosol absorption differences between VIS and UV

  • aerosol is more absorbing than black carbon

Nick Krotkov et al., Geophys. Res. Lett., manuscript in preparation

Nick Krotkov et al., Aerosol ultraviolet absorption experiment (2002 to 2004) , part 2: absorption optical thickness, refractive index, and single scatter albedo, Optical Engineering, 44(4) 041005, 2005.


2008 aerosol update goddard space flight center peter colarco code 613 3

MODIS/OMI Combination to Retrieve Aerosol Height

MODIS constrains extinction

OMI initial assumption of aerosol height

S.K. Sateesh, India Institute of Science on sabbatical at GSFC with ORAU


2008 aerosol update goddard space flight center peter colarco code 613 3

Summary

nucleation

condensation

coagulation

coagulation

DU

SS

SU

NO3

H2O

BC

OC

SU

NO3

NH4

H2O

BC

OC

SU

NH4

NO3

H2O

DU

SS

Accumulation modes

Nucleation

mode

Coarse modes

0.01 mm

0.1 mm

1 mm

10 mm

Particle radius


2008 aerosol update goddard space flight center peter colarco code 613 3

What is a Mission?

  • NASA has the important role of putting remote sensing capability into space

  • Comprehensive mission involves also

    • Extensive calibration and validation

    • Ground-based and airborne supporting measurements

    • Modeling

  • Doing science to answer our questions


2008 aerosol update goddard space flight center peter colarco code 613 3

Hard Times Café, College Park


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