The Center for Atmospheric Sciences | » APS Departmental Seminar–Peter Bernath (Old Dominion University)

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  • APS Departmental Seminar–Peter Bernath (Old Dominion University)

    Date/Time: January 28, 2015 (Wednesday) 12:15 PM

    Where: Center for Atmospheric Sciences Class Room (Phenix 123)

    Speaker: Peter Bernath

    From: Department of Chemistry & Biochemistry, Old Dominion University

    Topic: The Atmospheric Chemistry Experiment (ACE): recent results

    Abstract: ACE (also known as SCISAT) is making a comprehensive set of simultaneous measurements of numerous trace gases, thin clouds, aerosols and temperature by solar occultation from a satellite in low earth orbit. A high inclination low earth orbit gives ACE coverage of tropical, mid-latitudes and polar regions. The primary instrument is a high-resolution infrared Fourier Transform Spectrometer (FTS) operating from 2 to 13 microns that measures the vertical distribution of trace gases, and the meteorological variables of temperature and pressure. Aerosols and clouds are being monitored using the extinction of solar radiation by two filtered imagers as well as by their infrared spectra. Although now in its eleventh year, the ACE-FTS is still operating nominally. An introduction and overview of the ACE mission will be presented. Science results discussed will cover the free troposphere to the mesosphere, and will include the observation of organic molecules associated with air pollution, greenhouse gases (including CO2), halogen-containing gases, and polar mesospheric clouds.

    Parking Information

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