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Measurements of the Climate-forcing Properties of Atmospheric Aerosols

presented at the Center for Atmospheric Sciences, University of Mexico, Mexico City, January 23, 1998


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Table of Contents

Measurements of the Climate-forcing Properties of Atmospheric Aerosols

Aerosol Effects on Climate

Estimates of Global Mean Radiative Forcing

Placeholder (4 slides)

CAVEAT

Uncertainties Of Parameters Used To Estimate Direct Aerosol Forcing Of Climate

Scientific Questions

Sampling Strategy for CMDL Aerosol Monitoring Program

Key Aerosol Types For Evaluating Climate Forcing By Anthropogenic Aerosols

CMDL Aerosol Network

Parameters controlling aerosol forcing

Linking up-scatter optical depth to aerosol chemical composition

Aerosol climate-forcing properties observed by CMDL

KEY FEATURES OF CMDL AEROSOL SAMPLING SYSTEM

NOAA Aerosol Sampling Inlet

NOAA Aerosol Sampling System

NOAA Aerosol Sampling Rack

Arctic Haze has Decreased at Barrow, Alaska since the mid-1980’s

Aerosol single-scattering albedo at Bondville, Illinois

PPT Slide

Sensitivity of aerosol forcing to observed variation in aerosol properties at Bondville

3-D Isentropic Airmass Trajectories

Wavelength-dependence of aerosol scattering is controlled by coarse/fine mix

Aerosol Extensive Properties at Sable Island by Trajectory Sector

Aerosol Intensive Properties at Sable Island by Trajectory Sector

Hygroscopic growth at Sable Island

Aerosol Forcing Efficiency (W m-2) at Sable Island by Trajectory Sector

Calculation of aerosol optical depth from surface observations

Surface aerosol properties in southeast USA may represent the column

NOAA/CMDL Measurements of Single-scattering Albedo

Aerosol Radiative Properties in Mexico City

CMDL Aerosol Monitoring Highlights

Conclusions

Author: John A. Ogren

Email: jogren@cmdl.noaa.gov

Home Page: /aerosol/

 
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