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1 Mike3/papers/tropoz/aguf98 12/2/98 16:30 M.J. Newchurch, K.A. Fuller, D.A. Bowdle University of Alabama in Huntsville Working Group on Space-Based Lidar.

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Presentation on theme: "1 Mike3/papers/tropoz/aguf98 12/2/98 16:30 M.J. Newchurch, K.A. Fuller, D.A. Bowdle University of Alabama in Huntsville Working Group on Space-Based Lidar."— Presentation transcript:

1 1 Mike3/papers/tropoz/aguf98 12/2/98 16:30 M.J. Newchurch, K.A. Fuller, D.A. Bowdle University of Alabama in Huntsville Working Group on Space-Based Lidar Winds, June 29 - July 1, 2004, Frisco, Colorado Update on RAPCD Infrastructure, Instrumentation, and Science RAPCD opened Spring 2003 Several instruments fully operational Meso-scale chemical transport models fully operational Other instruments in progress Unique research tool for scientists and students

2 2 Mike3/papers/tropoz/aguf98 12/2/98 16:30 RAPCD Motivation Improved Air Quality Forecasting trace gases, especially ozone aerosols, especially hygroscopic and organic surface, lower troposphere, vertical fluxes, clouds

3 3 Mike3/papers/tropoz/aguf98 12/2/98 16:30 Major mismatch between measured and modeled tropospheric ozone (July 4)(July 19)(July 24)(June29) TN LON: -86.57, LAT: 36.25

4 4 Mike3/papers/tropoz/aguf98 12/2/98 16:30 Huntsville Ozonesonde Station

5 5 Mike3/papers/tropoz/aguf98 12/2/98 16:30 Schematic of the OZONE Differential Absorption Lidar (DIAL) YAG laser 1 YAG laser 2 Dye laser 2 -Off absorption- Telescope Detection & data acquisition Dye laser 1 -On absorption- Separator Doubler Separator = 1064nm =532nm =291nm =285nm =582nm =570nm =578 nm =598 nm Doubler & Separator 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 Ozone DIAL first light

6 6 Mike3/papers/tropoz/aguf98 12/2/98 16:30 NPS: Annual average extinction coefficients (Mm-1 ) ‘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

7 7 Mike3/papers/tropoz/aguf98 12/2/98 16:30 Scanning aerosol lidar

8 8 Mike3/papers/tropoz/aguf98 12/2/98 16:30 MSFC Ground-based Doppler Wind Lidar and chimney

9 9 Mike3/papers/tropoz/aguf98 12/2/98 16:30 RAPCD rooftop platform for sky-viewing instruments

10 10 Mike3/papers/tropoz/aguf98 12/2/98 16:30 AORAOR Applied Microparticle Optics and Radiometry

11 11 Mike3/papers/tropoz/aguf98 12/2/98 16:30 (Without clutter panels -- 15 min setup time) Mobile Integrated Profiler System

12 12 Mike3/papers/tropoz/aguf98 12/2/98 16:30 Standard MM5 Unrealistic energy reaching the surface Clouds at wrong place/wrong time Clouds being too opaque Satellite Assimilation Direct insertion of satellite observed insolation Clouds at right place/right time Cloud’s impact not exaggerated Data Assimilation in MM5

13 13 Mike3/papers/tropoz/aguf98 12/2/98 16:30 NSSTC Regional Atmospheric Profiling Center for Discovery RAPCD Planned MEASUREMENTS Atmospheric profiles of aerosols, gases, winds, temperature Tunable lidar, ozonesondes, and DOAS spectrometer - O 3, NO 2, NO 3, HCHO, H 2 O 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

14 14 Mike3/papers/tropoz/aguf98 12/2/98 16:30 NSSTC Regional Atmospheric Profiling Center for Discovery RAPCD 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

15 15 Mike3/papers/tropoz/aguf98 12/2/98 16:30 NSSTC Regional Atmospheric Profiling Center for Discovery RAPCD Applications Diurnal and long-term investigation of ozone and aerosol climatology, horizontal and vertical transport heterogeneous chemistry, including gas to particle conversion cloud processing and cloud venting of chemical pollutants water uptake by aerosols, effects on visibility and cloud formation 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

16 16 Mike3/papers/tropoz/aguf98 12/2/98 16:30 The UAH Atmospheric Chemistry Program Collaborators 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

17 17 Mike3/papers/tropoz/aguf98 12/2/98 16:30 nsstc.uah.edu/atmchem

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