61. Dr. Hanwant B. Singh Information about atmospheric chemistry research and the journal Atmospheric Environment. http://geo.arc.nasa.gov/sgg/singh/

HOME Research Goals and Collaborations Publications Field Missions INTEX-NA White Paper (Revised December 2002) ... INTEX-NA White Paper (12/01) Atmospheric Environment Scope Submissions Special Issues Manuscript Status ... Links Dr. Hanwant B. Singh Atmospheric Environment Contact information: Dr. Hanwant B. Singh NASA Ames Research Center MS 245-5 Moffett Field, CA 94035, USA Phone: (650) 604-6769 Fax: (650) 604-3625 E-mail: Hanwant.B.Singh@nasa.gov editor@AEnorthamerica.com NASA NASA Ames Research Center ... NASA Ames Earth Science Division maintained by Erin Czech, eczech@mail.arc.nasa.gov last updated 2/18/03

62. What Is Atmospheric Chemistry? Atmospheric Chemistry Is The Study What is atmospheric chemistry? atmospheric chemistry has as its foundationthe photochemistry of the molecular constituents of air. http://www.atmos.ucla.edu/~turco/groupweb/

What is Atmospheric Chemistry? Atmospheric Chemistry is the study of the composition of the atmosphere, the sources and fates of gases and particles in air, and changes induced by natural and anthropogenic processes. Although a relatively new field, it has received growing attention since many of the environmental problems of greatest importance involve trace vapors and aerosols. Popular examples are the ozone hole , greenhouse gases and urban air pollution Atmospheric Chemistry has as its foundation the photochemistry of the molecular constituents of air. However, atmospheric chemists also study the formation and properties of airborne particles, cloud processing of materials, transport and dispersion of chemical tracers, and biogeochemical cycles. In practice, these activities translate into the development of instruments and models for studying the atmosphere, and the application of such tools to answer scientific questions. The atmosphere most easily reveals its secrets to those who are willing to think broadly. Atmospheric chemistry is a truly multidisciplinary field that seeks understanding of the environment through broad thinking. UCLA Home UCLA Department of Atmospheric Sciences ... About L.A. and Southern California

63. UCLA | Department Of Atmospheric Sciences | Research The Department of Atmospheric Sciences has a longstanding tradition of experimentaland theoretical research in atmospheric chemistry and physics. http://www.atmos.ucla.edu/web/research/chem_rad.html

Help Advanced The program is subdivided into the following categories: (more links coming soon) Atmospheric Chemistry and Air Pollution Atmospheric Radiation Aerosol and Cloud Physics Remote Sensing Biogeochemical cycles Home Info Undergrads Grads ... Contact

64. ATMOSPHERIC CHEMISTRY, AEROSOLS AND SOLAR RADIATION Research Site Research Activities Explore Research about atmospheric chemistryand Solar Radiation. Code 916 The atmospheric chemistry http://www.earth.nasa.gov/science/Science_atmosphere.html

The research theme encompasses the processes responsible for the emission, uptake, transport, and chemical transformation of ozone and precursor molecules associated with its production in the troposphere and its destruction in the stratosphere, as well as the formation, properties, and transport of aerosols in the Earth's troposphere and stratosphere (the direct impact of aerosols on atmospheric radiation transfer and effects on cloud formation and properties are discussed in the subsequent chapter on the global water and energy cycle). Since variations in solar activity have considerable influence on atmospheric composition and chemistry, the monitoring of solar radiation (both total irradiance and spectrally-resolved irradiance) is also included. How is stratospheric ozone changing, as the abundance of ozone-destroying chemicals decreases and new substitues increases? What trends in atmospheric constituents and solar radiation are driving global climate? What are the effects of clouds and surface hydrologic processes on Earth's climate? How do stratospheric trace constituents respond to change in climate and atmospheric compostition?

65. Atmospheric Chemistry atmospheric chemistry Pacific Marine Environmental Laboratory (PMEL) Links toNOAA's research and data related to atmospheric chemistry and aerosols. http://www.earth.nasa.gov/research/chem/

Atmospheric Chemistry What are the causes and impacts of long-term climate variability, and can we distinguish natural from human-induced drivers? Remote Sensing Systems A research company in Santa Rosa, CA, that specializes in processing and analyzing microwave data collected by special satellite microwave sensors. This provides information about the atmosphere and the Earth's surface. www.ssmi.com Atmospheric Infrared Sounder (AIRS) Project AIRS will measure air temperature, humidity, clouds, and surface temperature. Scientists will use AIRS data to better understand weather and climate. The National Weather Service and NOAA will use it to improve their weather and climate models. AIRS will fly aboard the AQUA spacecraft of the Earth Observing System (EOS), scheduled for launch early in this century. http://www-airs.jpl.nasa.gov/ Ocean-Land-Atmosphere Simulation of Climate Variability over Amazonia A research project of scientists at the Center for Ocean-Land-Atmosphere Studies (COLA) and the University of New Hampshire, in collaboration with colleagues at CPTEC and the University of Sao Paulo in Brazil, to investigate seasonal-to-interannual variability and predictability in the Amazonian climate system. http://www.iges.org/lba/

66. Atmospheric Chemistry Research atmospheric chemistry Research, Navigator -. http://www.env.leeds.ac.uk/ias/chemistry/

Institute for Atmospheric Science - Navigator - Home Page About the school Admissions Research Teaching and Learning People Positions Available Events Search Atmospheric Chemistry Research Atmospheric chemistry is central to understanding the present composition of the Earth's atmosphere and how it may change in the future. For example, the fate of most pollutants emitted into the atmosphere is governed by their chemical reactions. In turn these reactions may lead to changes in the abundances of naturally occurring gases. Pollution can range from local (e.g. photochemical smog) to global (e.g. depletion of stratospheric ozone). The School of the Environment has a strong research programme in atmospheric chemistry ranging from laboratory and field measurements to global numerical modelling. We collaborate closely with atmospheric chemistry groups in the School of Chemistry Research Overview of current research projects and activities Group members Who's who, what they do, and how to contact them

67. Sites Related To Aerosols And Atmospheric Chemistry Sites Related to Aerosols and atmospheric chemistry. AIRSITE atmospheric chemistryInternational Research Site; AIRSITE (Mirror at University of Leeds, UK); http://imk-aida.fzk.de/sites/

AIDA Sites Related to Aerosols and Atmospheric Chemistry General Information AerosolsOnline - Aerosol Community Website Associations, Societies AAAR - American Association for Aerosol Resaerch ASFERA - The French Aerosol Association The Aerosol Society (UK, Irish Republic) ACS - The American Chemical Society ... The Royal Meteorological Society Russian Aerosol Society Society for Applied Spectroscopy Research Sites AER - Atmospheric and Environmental Research, Inc. Aerodyne Research, Inc. AIRSITE - Atmospheric Chemistry International Research Site AIRSITE (Mirror at University of Leeds, UK) Alfred-Wegener-Institute for Polar and Marine Research (AWI) Bremerhaven (Germany) Research Unit Potsdam (Germany) L'Aquila University (Italy) - Atmospheric Sciences Argonne National Laboratory (USA) - Aerosol Technology Berlin (Germany), Free University Institute for Experimental Physics - LIDAR and Aerosol Research Institute for Meteorology Bremen University (Germany) Institute of Environmental Physics Institute for Material Science - Process Technology Bristol University (UK) - Laser Chemistry Group British Atmospheric Data Centre, Rutherford Appleton Laboratory ... Bochum (Germany), Ruhr University - Laser Application Technology and Measurement Systems California Institute of Technology, USA Chemical Engineering Environmental Engineering Science Jet Propulsion Laboratory: Chemical Kinetics and Photochemical Data for Stratospheric Modeling Cambridge University (UK) - Centre for Atmospheric Science European Ozone Research Coordinating Unit IUPAC Subcommittee for Gas Kinetic Data Evaluation ... Copenhagen University (Denmark) - Chemical Physics, Laser Spectroscopy and Atmospheric Chemistry

68. Aerosols And Atmospheric Chemistry: Scientists Scientists Active in the Field of Aerosols and/or atmospheric chemistry. Brauers,Theo (Institute for atmospheric chemistry, Research Center Jülich, Germany); http://imk-aida.fzk.de/persons/

AIDA Scientists Active in the Field of Aerosols and/or Atmospheric Chemistry Abbat, Jonathan P. D. (Geophysical Sciences, University of Chicago, USA) Anastasi, Chris (Environmental Chemistry, York University, UK) Arey, Janet (Environmental Sciences / Air Pollution Research Center, University of California, Riverside, CA, USA) Ariya, Parisa A. (Atmospheric and Oceanic Scieneces, and Chemistry, McGill University, Montreal, Canada) Arnott, W. Patrick (Division of Atmospheric Sciences, Desert Research Institute,Reno, NV, USA) Atkinson, Roger (Atmospheric Chemistry/ Environmental Chemistry , University of California at Riverside, USA) Baer, Tomas (Department of Chemistry, University of North Carolina at Chapel Hill, USA) Bailey, Matthew P. (Division of Atmospheric Sciences, Desert Research Institute,Reno, NV, USA) Barber, Peter W. (Division of Atmospheric Sciences, Desert Research Institute,Reno, NV, USA) Barker, John R. (Atmospheric, Oceanic and Space Sciences / Physical Chemistry, University of Michigan) Barrie, Leonard A.

69. UAH Atmospheric Chemistry PhotoGallery.gif (803 bytes). Lidar.GIF (470 bytes). http://vortex.nsstc.uah.edu/atmchem/

70. Atmospheric Chemistry atmospheric chemistry. Faculty Dean Hegg, Peter Hobbs, Lyatt Jaeglé.The atmosphere is chemically complex and evolving due to natural http://www.atmos.washington.edu/academic/atmoschem.html

Fields of Study and Research Atmospheric Dynamics Boundary Layer Research Climate Change Cloud and Aerosol Research ... Synoptic Meteorology Atmospheric Chemistry Faculty: Dean Hegg, Peter Hobbs, The atmosphere is chemically complex and evolving due to natural events, biological and anthropogenic activities; it has fundamental chemical links to the oceans, the solid earth and the biota. Anthropogenic perturbations such as land-use and industrial activities have profoundly modified the chemical composition of the troposphere and stratosphere, with potentially important consequences on future climate and living organisms. Examples of such changes include the formation of an ozone hole over Antarctica since the late 1970s, the observed trends in long-lived greenhouse gases, the change in the concentrations of tropospheric ozone and acidic deposition due to growing emissions of hydrocarbons, nitrogen oxides and sulfur dioxide in industrialized regions. Laboratory studies, field experiments and modeling activities by atmospheric chemists at the University of Washington are directed at determining chemical composition and chemical processes in the atmosphere and in turn their effects on the atmosphere, and on a larger scale the biogeochemistry of the earth. The laboratory and experimental research deals with trace gas measurements and physical, chemical and optical properties of particles. Global models of atmospheric chemistry and climate use these observations to improve their predictions of future changes in atmospheric composition, and also guide the development of analytical techniques and the logistics of large-scale field measurement programs.

71. Atmospheric Chemistry atmospheric chemistry Faculty Dean Hegg, Peter Hobbs, Lyatt Jaeglé.The atmosphere is chemically complex and evolving due to natural http://www.atmos.washington.edu/~laurie/newgrad/atmoschem.html

Fields of Study and Research Atmospheric Dynamics Boundary Layer Research Climate Fluctuations and Change Cloud Dynamics, Preciptitation Processes and Storms ... Synoptic Meteorology Atmospheric Chemistry Faculty: Dean Hegg, Peter Hobbs, The atmosphere is chemically complex and evolving due to natural events, biological and anthropogenic activities; it has fundamental chemical links to the oceans, the solid earth and the biota. The global concentrations of several trace gases are observed to be increasing at rates that are predicted to cause significant long-lived changes in the chemical and radiative properties of the atmosphere. The physical state of the stratosphere is dominated by the photochemistry of ozone and oxygen strongly influenced by water, nitrogen oxides and chlorinated molecules. the adverse health effects of air pollution, the acidity of precipitation and degradation of visibility are influenced by the chemistry of ozone, nitrogen and sulfur oxides, organic molecules and free radicals. A change in global climate may result from the effects of gases and aerosols on the earth's radiation balance either directly or indirectly by interactions with clouds. Laboratory and field experiments and modeling by atmospheric chemists are directed at determining chemical composition and chemical processes in the atmosphere and in turn their effects on the atmosphere, and on a larger scale the biogeochemistry of the earth. The research deals with the trace gas measurements and the physical, chemical and optical properties of particles, focusing on a range of topics from analytical techniques and instrumental development to global climate models which use the measurements as input and also guide the development of analytical techniques and the logistics of large scale field measurement programs. Atmospheric chemistry research at the University of Washington can be found in the Departments of Atmospheric Sciences, and Chemistry, and in the School of Oceanography.

72. KLUWER Academic Publishers | Atmospheric Chemistry Chemistry and Dynamics Gerald L. Geernaert November 1999, ISBN 07923-5937-2, HardboundPrice 179.00 EUR / 240.00 USD / 138.00 GBP Add to cart. Atmospheric http://www.wkap.nl/home/topics/I/5/4/

Title Authors Affiliation ISBN ISSN advanced search search tips Home Browse by Subject ... Atmospheric Sciences Atmospheric Chemistry Sort listing by: A-Z Z-A Publication Date Air-Sea Exchange: Physics, Chemistry and Dynamics Gerald L. Geernaert November 1999, ISBN 0-7923-5937-2, Hardbound Price: 179.00 EUR / 240.00 USD / 138.00 GBP Add to cart Atmospheric Measurements during POPCORN - Characterisation of the Photochemistry over a Rural Area J. Rudolph, R. Koppmann January 1999, ISBN 0-7923-5531-8, Hardbound Price: 95.50 EUR / 126.00 USD / 74.00 GBP Add to cart Chemistry and Radiation Changes in the Ozone Layer Christos S. Zerefos, Ivar S.A. Isaksen, Ioannis Ziomas December 2000, ISBN 0-7923-6513-5, Hardbound Price: 167.00 EUR / 181.50 USD / 114.50 GBP Add to cart Chemistry and Radiation Changes in the Ozone Layer Christos S. Zerefos, Ivar S.A. Isaksen, Ioannis Ziomas December 2000, ISBN 0-7923-6514-3, Paperback Price: 63.50 EUR / 69.00 USD / 44.00 GBP Add to cart Chemistry of Aquatic Systems: Local and Global Perspectives Giovanni Bidoglio, Werner Stumm June 1994, ISBN 0-7923-2867-1, Hardbound

73. MIT CGCS Research: Atmospheric Chemistry Focus on Upper atmospheric chemistry and Circulation. Measurements of homogeneousgas phase reactions in the MIT Laboratory for atmospheric chemistry. http://web.mit.edu/cgcs/www/atmchem.html

MIT Center for Global Change Science > home Focus Areas Affiliates directory education ... outreach Focus on Upper Atmospheric Chemistry and Circulation Theoretical studies of the greenhouse effect indicate that a rise in the level of the greenhouse gases will tend not only to warm the Earth's surface and the lower atmosphere but also to cool the stratosphere. This cooling of the stratosphere is expected to affect the ozone layer by decreasing ozone destruction in equatorial regions and increasing ozone destruction in polar regions. These effects would be added to the increased ozone destruction expected due to rising chlorofluorocarbon concentrations. The stratospheric cooling by the greenhouse gases combined with these ozone layer changes will in turn affect the circulation at this level and conceivably at lower levels also. Indeed, there is already some evidence that Antarctic ozone changes have been influencing the Southern Hemisphere springtime climate by delaying the final warming. CGCS researchers are extensively involved in laboratory and theoretical studies to address two general interrelated goals: to understand quantitatively the elementary chemical steps at the molecular level that enable reliable extrapolations to atmospheric conditions; and to understand the interrelationship between chemical and atmospheric processes in order to elucidate the relevant chemical reactions that affect the atmosphere on regional and global scales. Following are two areas of interest to CGCS researchers.

74. Atmospheric Chemistry Group Air Quality Laboratory atmospheric chemistry Group http://aql.eas.gatech.edu/fieldops/field.html

Air Quality Laboratory Atmospheric Chemistry Group Contents AQL Research Mobile Source Group Atmospheric Chemistry Group Public Policy Group AQL Info ... Comments Web Navigation AQL Home Page Site Map Current Research Dynamometer Lab Past Research SOS PEM AQL’s Field Measurements Group is dedicated to developing and implementing state-of-the-art measurement instruments to collect quality air emissions data. The group played a lead role in collecting chemical and meteorological measurements for the Southern Oxidants Study (SOS), a $25 million multi-investigator research effort devoted to furthering understanding of ground-level ozone formation in the Southeastern United States. Research scientists from the Atmospheric Chemistry Group have also been heavily involved in the Pacific Exploratory Missions (PEM) of NASA's Global Tropospheric Experiment, which seek to study natural atmospheric systems in remote areas. AQL’s Field Measurements Group is supported by meteorologists who collect local data on atmospheric conditions such as wind speed, temperature, wind direction and solar radiation that influence air quality measurements. These measurements are used for air quality forecasts, such as those utilized by the Atlanta Ozone Advisory Program, and for interpretation of air quality data. James Pearson , Group Leader

75. Atmospheric Chemistry http://www.isao.bo.cnr.it/~chimatmo/atm_chem/

Last modified: June 2002

76. Atmospheric Chemistry And Aerosols Group atmospheric chemistry and Aerosols Group. The atmospheric chemistry and AerosolsGroup (AC A) is part of the Atmospheric Science Division at LLNL. http://asd.llnl.gov/aca/

Atmospheric Chemistry and Aerosols Group Staff Directory Publications Projects For further questions or comments regarding CCCM, please contact Jane Dignon Lawrence Livermore National Laboratory Last updated September 20, 2001. UCRL-MI-144050 Technical Problems: enevtech@llnl.gov

77. Atmospheric Chemistry & Biochemistry atmospheric chemistry and Biogeochemistry The atmosphere is a chemically complexsystem interacting both with its own various layers and with the other http://www.ucar.edu/res_sci/atmos-chem.html

Atmospheric Chemistry and Biogeochemistry: Atmospheric Chemistry Climate and Global Dynamics Mesoscale and Microscale Meteorology Atmospheric Technology ... Terms of Use

78. Atmospheric Chemistry: New Insights Define Current Research In spite of the relatively primitive state of the science of atmospheric chemistryin the late 1950s, the authors of the UCAR Blue Book proposed chemistry as http://www.ucar.edu/communications/ucar25/chemistry.html

UCAR Communications UCAR at 25 Search ... Tools of the Trade Atmospheric Chemistry Balloons Sun and Earth Teleconnections Supercomputing ... Next Atmospheric Chemistry: New Insights Define Current Research When one reviews the knowledge of atmospheric chemical composition as it existed two or three decades ago, one is struck by the primitive state of the science It is now understood that the atmosphere is a reactive environment. National Academy of Sciences, 1984 In spite of the relatively primitive state of the science of atmospheric chemistry in the late 1950s, the authors of the UCAR "Blue Book" proposed chemistry as one of the disciplines that should be included in a broad and vigorous attack on scientific problems of the atmosphere. They recognized that some chemical species in the atmosphere are far from inert and suggested some scientific issues that the new institute should address: For example, the photochemical processes by which the ionization and recombination of gaseous components is [sic] achieved are only partly known. The chemical equilibrium of ozone in the upper atmosphere has a profound influence on biological processes on the ground as well as being a possible link between fluctuations in the emission of ultra- violet energy from the sun and atmospheric motion at lower levels. The distribution and decay of natural and artificial radioisotopes, the carbon dioxide and nitrogen cycles in the atmosphere, and the processes by which particulate materials are diffused and removed from the atmosphere are problems which have assumed ecological significance.

79. Homepage, Homepage Research in the atmospheric chemistry Department focuses on ozoneand photooxidants, their chemical reactions and global cycles. http://www.atmosphere.mpg.de/

Research in the Atmospheric Chemistry Department focuses on ozone and photo-oxidants, their chemical reactions and global cycles. We perform highly sensitive measurements of ozone precursors, key breakdown products of hydrocarbons and radicals to characterize chemical reaction chains.The processes are studied through kinetic and photochemical laboratory investigations, in situ and remote sensing measurements. Further activities include development of numerical models to describe meteorological and chemical processes in the atmosphere, to simulate the complex atmospheric interactions. Director: Prof. Dr. J. Lelieveld Lelieveld@mpch-mainz.mpg.de Krueger@mpch-mainz.mpg.de Administration: C. Brenninkmeijer cathy@mpch-mainz.mpg.de

80. Atmospheric Chemistry The mission of the atmospheric chemistry section of the Atmospheric Science Divisionis to improve knowledge of the chemistry of the atmosphere and its http://www.ns.ec.gc.ca/msc/as/as_chemistry.html

Contact Us Help Search Canada Site ... Pacific and Yukon Region Select a Topic Children's Environmental Health Climate Community Programs Contact List of Experts Emergencies Enforcement and Compliance Environmental Assessment Environmental Links Funding Programs Hunting Hurricane Centre Legislation We Administer Marketplace: Our Products Media Spokespersons Meet Our Minister Meteorology News Releases Pollution Information Publications Severe Weather Awareness Smog Forecast Wildlife Nature and Wildlife Pollution Meteorology Community Programs ... Storm Summaries Atmospheric Science The mission of the Atmospheric Chemistry section of the Atmospheric Science Division is to improve knowledge of the chemistry of the atmosphere and its influence on human and ecosystem health. The Atmospheric Chemistry Laboratory at Meteorological Service of Canada - Atlantic in Dartmouth, Nova Scotia. Contact: Stephen Beauchamp Ph.D. Atmospheric Chemist Meteorological Service of Canada 16th Floor, Queen Square 45 Alderney Drive, Dartmouth Nova Scotia, CANADA Fax: 902-426-9158 e-mail: Steve.Beauchamp@ec.gc.ca

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