1 / 20

Mike Newchurch Atmospheric Science Dept. UAH

Dome Shutters. Locked at zenith. Dome. Ozone Lidar. Doppler Lidar Scanner. Chimney 5. Solar FTIR. Chimney 4. Dome Floor. Horizontal FTIR. Chimney 3. Railing. Lid Open. Lid Open. Dome Sidewall. Lid Closed. Chimney 2. Lid Closed. Grating Top

bill
Télécharger la présentation

Mike Newchurch Atmospheric Science Dept. UAH

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Dome Shutters Locked at zenith Dome Ozone Lidar Doppler Lidar Scanner Chimney 5 Solar FTIR Chimney4 Dome Floor Horizontal FTIR Chimney 3 Railing Lid Open Lid Open Dome Sidewall Lid Closed Chimney 2 Lid Closed Grating Top Dome Floor Chimney 1 Dome Legs Roof Top Mike NewchurchAtmospheric Science Dept.UAH The 7th Annual Southeast Ultrafast and High-Resolution Spectroscopy Conference 15-17 January 2004 Huntsville, AL 2.1-micron Doppler wind/aerosol lidar Elevation of roof plan 1-micron scanning aerosol lidar on loan from Herman and Labow/GSFC

  2. The UAH Atmospheric Chemistry ProgramCollaborators Global Hydrology and Climate Center / MSFC Laboratory for Atmospheres / GSFC Climate Diagnostics and Monitoring Lab / NOAA Atmospheric Chemistry Division / NCAR Aerosol Research Branch /LaRC Atmospheric Chemistry Division / JPL Aeronomy Lab / NOAA National Weather Service Cal State, Northridge Cal Tech Georgia Tech Hampton University Harvard University Pusan National University, S. Korea St. Louis University St. Petersburg University, Russia

  3. The UAH Atmospheric Chemistry Program • The atmospheric chemistry program in the UAH Atmospheric Science graduate school includes research in balloon borne, ground-based, and satellite remote sensing of ozone, trace gases and aerosols in both the troposphere and stratosphere • Time series analysis of those trace gases, especially ozone • Modeling of the processes controlling air quality. • We are building a new laboratory designed to house instruments measuring ozone and aerosol vertical atmospheric profiles, boundary layer winds from Doppler aerosol backscatter lidar, and aerosol infrared spectra in both laboratory and ambient conditions. • This new laboratory, The Regional Atmospheric Profiling Center for Discovery, (RAPCD, pronounced rhapsody) will be a state of the science facility housed in the National Space Science and Technology Center. • It opened spring 2003 and we invite interested researchers to discuss collaborative science with us. • Additional information about our program and laboratory is available at nsstc.uah.edu/atmchem.

  4. What is Tropospheric Ozone and Why Do We Care? • Stratospheric ozone protects us from harmful UV radiation • Tropospheric ozone is harmful to lifeforms. • Respiratory problems • Skin cancer • Crop damage • Sources are both natural and anthropogenic • Scale ranges from local to global

  5. LON: -86.57, LAT: 36.25 TN (June29) (July 4) (July 19) (July 24) How well can we model the ozone vertical variation?

  6. Huntsville Ozonesonde Station

  7. Dome Shutters Locked at zenith Dome Ozone Lidar Doppler Lidar Scanner Chimney 5 Solar FTIR Chimney4 Dome Floor Horizontal FTIR Chimney 3 Railing Lid Open Lid Open Dome Sidewall Lid Closed Chimney 2 Lid Closed Grating Top Dome Floor Chimney 1 Dome Legs Roof Top NSSTC Regional Atmospheric Profiling Center for DiscoveryRAPCD

  8. NSSTC Regional Atmospheric Profiling Center for Discovery RAPCD Doppler Chimney Platform 1 Chimneys Johnson, Emmitt, Bowdle, Newchurch, Burris, Jarzembski Ozone DIAL first light

  9. RAPCD rooftop platform for sky-viewing instruments

  10. Schematic of the OZONE Differential Absorption Lidar (DIAL) Measure vertical profiles of ozone from the earth surface to the free troposphere using the difference in atmospheric absorption at 285 and 291 nm. Telescope Telescope =1064nm =578nm Dye laser 1 -On absorption- YAG laser 1 Separator Doubler & Separator Doubler =532nm =1064nm =291nm =582nm =598nm =1064nm Dye laser 2 -Off absorption- Separator YAG laser 2 Doubler & Separator Doubler =532nm =285nm =1064nm =570nm Detection & data acquisition

  11. Scanning aerosol lidar

  12. MSFC Ground-based Doppler Lidar

  13. ‘Hot Topics’ in Aerosols and Forcing • Chemical composition • Speciation • Hygroscopicity • Physical properties • Size distribution • Morphology • Radiometric Properties • Extinction • Scattering • Absorption • Polarimetric • Forcing / Remote Sensing • Optical depth • Albedo • Polarization • Distribution of scattered light • Vertical structure Huntsville, AL. A Researcher’s Paradise for Science of the Atmospheric Aerosol NPS: Annual average extinction coefficients (Mm-1 )

  14. AmOR Applied Microparticle Optics and Radiometry

  15. Instrumentation for PM Analysis Applied Microparticle Optics and Radiometry AmOR Defense Universities Research Instrumentation Program (DURIP) Fourier Transform Spectrometer, 1-30mm Mueller Matrix Polarimetry Module Multiangle Reflectometry Module Micro-Orifice Uniform Deposit Impactor (MOUDI) Optical Particle Counter NSF for Development of TANdem INtegrating Sphere (TANINS) Absorption Meter In addition 7 Channel Rotating Shadow Band Radiometer (from Jack Fix, UAH Dean of Science) Real-time FTIR aerosol analyzer (On extended loan from Argonne National Laboratory)

  16. Partnerships and Collaborations Applied Microparticle Optics and Radiometry AmOR EPA: Office of Research and Development Biological and Physical Sciences City of Huntsville Division of Natural Resources (Air Quality) Satellite Archaeology Dusty plasma lab Aerosol measurements and Radiometry, Sipsey Wilderness Area

  17. NSSTC Regional Atmospheric Profiling Center for DiscoveryRAPCD • Planned MEASUREMENTS • Atmospheric profiles of aerosols, gases, winds, temperature • Tunable lidar, ozonesondes, and DOAS spectrometer • O3, NO2, NO3, HCHO, H2O • Aerosols and clouds with lidar, sodar, and ceilometer • ice/water discrimination with lidar depolarization signals • Winds with Doppler lidar, Doppler radar, and sonde • Temperature with RASS and sonde • Ground-based radiation • Column-integrated aerosols and gases with FTIR, MFRSR, Brewer • Characteristics of atmospheric aerosols with FTIR and MOUDI • Optical properties • Chemical composition • Water uptake, reactivity with other trace gases

  18. NSSTC Regional Atmospheric Profiling Center for DiscoveryRAPCD • APPLICATIONS • Satellite validation • Tropospheric ozone (TOMS, OMI, TES, AIRS, GOME, SCHIMACHY) • SO2, HCHO, NO2 • Aerosols (MISR, MODIS, NPOESS, TOMS) • Winds (GTWS) • Chemistry and Aerosols • regional air pollution • Stratospheric/Tropospheric Exchange • PBL convection/entrainment/venting • Large Eddy Simulation • Lightning NOx impact on ozone • Regional climate forcing • Visual air quality

  19. NSSTC Regional Atmospheric Profiling Center for DiscoveryRAPCDApplications • Diurnal and long-term investigation of • ozone and aerosol climatology, horizontal and vertical transport • heterogeneous chemistry, including gas to particle conversion • cloud venting of chemical pollutants • moisture effects on visibility • correlation between ozone profiles and synoptic and regional scale weather • stratosphere as a source for local and regional ozone pollution. • Combine with similar systems in the NE and Rocky Mountains to • Investigate large scale budgets and transport of ozone and aerosol • assess model predictions • Unique in the world as a research tool for both scientists and students.

  20. nsstc.uah.edu/atmchem

More Related