http://meteo.uibk.ac.at/IAMAS2001/ 5.2 Mineral Desert Aerosols, ICCP Measurements of chemical, physical and optical properties of dust particles and remote sensing of dust. Dust-cloud interactions Dust and climate Forecast of dust storms Climatology of dust storms Convenor: Zev Levin, Department of Geophysics and Planetary Science, Tel Aviv University, Ramat Aviv, 69978, Israel; Phone: +972 3 6408274; Fax: +972 3 6409282; e-mail: zev@hail.tau.ac.il Co-convenor: Irina N. Sokolik, Program in Atmospheric and Oceanic Sciences, Campus Box 392, University of Colorado at Boulder, Boulder Colorado 80309-0392, USA; Phone: +1 303 492 5724; Fax: +1 303 492 6946; e-mail: sokolik@lasp.colorado.edu Global and Local Dust over North America The ambient dust over North America is contributed from three major source areas: Sahara, East Asia and ‘Local’ dust form the arid Western regions. The Sahara dust reaches N. America as the ‘tail’ of the well-known dust plume across the Atlantic. It reaches continent through the Gulf of Mexico from where it is transported northward with the prevailing winds. It seldom passes over the Rocky and Sierra mountains. The Sahara dust concentration dust 4.1 Remote sensing and radiative transfer, satellite observations and validation, results from new satellite-based sensors, aerosol measurements, modelling and interactions. This symposium will focus on all aspects of the atmospheric radiation research, both theoretical and experimental, including remote sensing and radiative transfer, theoretical and empirical studies of the radiative properties of aerosols, remote sensing of aerosols, aerosol optical models, satellite observations and validation using ground based data, results from new satellite-based sensors, and aerosol interactions. Convener: Brent Holben, code 923, Laboratory for Terrestrial Physics, NASA Goddard Space Flight Center, Greebelt, MD 20771 USA; Phone: (301)-614-6658; Fax: (301)-614-6695; e-mail: brent@aeroneetr.gsfc.nasa.gov Co-conveners: Alexander Smirnov, SSAI, code 923, Laboratory for Terrestrial Physics, NASA Goddard Space Flight Center, Greebelt, MD 20771 USA; Phone: (301)-614-6626; Fax: (301)-614-6695; e-mail: asmirnov@aeronet.gsfc.nasa.gov Charles Gatebe, Univ. MD. Baltimore Campus, GEST, Climate and Radiation Branch, Code 913, NASA's GSFC, Greenbelt, MD 20771 USA; Phone: (301) 614 6228; Fax: 301 614 6307; e-mail: gatebe@climate.gsfc.nasa.gov Brent N. Holben, NASA's GSFC, Code 923, Greenbelt, MD 20771, Tel. (301) 614 6658; FAX: (301) 614-6695; e-mail: brent@aeronet.gsfc.nasa.gov AERONET homepage: http://aeronet.gsfc.nasa.gov:8080/ Fusion of Satellite and Surface Data? 7.2 The Organic Content And Related Chemistry Of Atmospheric Aerosols ICACGP, ICCP Convenors: Jochen Rudolph, Chemistry Department and Centre for Atmospheric Chemistry, York University, 4700 Keele Street, North York, Ontario M3J 1P3, Canada; Phone: +1 416 650 8117; Fax: +1 416 736 5411; e-mail: rudolphj@yorku.ca U. Baltensperger, Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland; Phone: +41 56 310 2408; Fax: +41 56 310 4525; e-mail: urs.baltensperger@psi.ch Carbonaceous Aerosols over North America 11. Observing Systems and Data Assimilation 11.1 Ground-based Remote Sensing In the last decade, we have improved dramatically our ability to remotely sense the properties of atmospheric gases, clouds and particles from the ground. This improvement is the result of a combination of new and better instruments and significant advancements in retrieval algorithms. The purpose of this symposium is to highlight the accomplishments of the past decade and provide a forum for discussion of research directions in the next decade. We welcome papers dealing with retrieval techniques, particularly those using multiple instruments, remote sensing results, and applications of new technologies to the remote sensing problem. Given the number of new satellite instruments in flight and planned, we also solicit papers on satellite validation and comparison using ground-based remote sensing. Convenor: Thomas Ackerman, US Dept. of Energy Atmospheric Radiation Measurement Program, Pacific Northwest National Laboratory, 902 Batelle Boulevard, P.O. Box 999, Richland WA 99362, USA; e-mail: Thomas.Ackerman@pnl.gov Global Visibility, WebCams