1 Mike3/papers/tropoz/aguf98 12/2/98 16:30 Mike Newchurch Atmospheric Science Dept. UAH Ozone Lidar...

1Mike3/papers/tropoz/aguf98 12/2/98 16:30

Mike NewchurchAtmospheric Science

Dept.UAH

Doppler lidar bench

FTIR benchtrop aerosol lidar bench

strat /trop lidar bench

~NORTH

horizontalsky-view

Janu ary 10, 2001each f loorspace square i s 2 f t x 2 f t; each laboratory fl oorspace is 20 ft E to W x 22.5 f t N to S

white circles wi th soli d borders show posi tions of l ight chi mneys, accurate to 1/2 i nch, and interior diametersfaded blue blocks around light chimneys show opt ical benches in laboratories below

cherry pi cker boom circle indicates minim um boom length

scanner

FTIR LAB ROOF PLANLIDAR LAB ROOF PLAN

ped estal

on roo f for5 ft cherry

picker

48”30”

30” 30”

semi-t ransparent green bl ock shows elevatedscanner platform on roof,

15 ft E to W and 26 ft N to Sapprox 2 f t clearance on outer walkway

9’

13’

17’

13’ 9”

13’

11’

8’ 3”

13’ 9”

26’

21’ 8”

support pi llar

8 footDoppler

lidarscancircle

ped estalon roo f for 7 ft cherry

picker


picker

30” 30”

30” 30”

7 footrooflidar

domeon

8 footbase

8’ 3”

Acrobat DocumentOzone Lidar

Doppler Lidar Scanner

Lockedat zenith

Grating TopDome Floor

Roof Top

DomeSidewall

RailingHorizontal FTIR

Solar FTIR

Lid Closed

Lid Closed

Lid

Op

en

Lid

Op

en

Dome Floor

Chimney 2

Chimney 4

Chimney 5

Chimney 1

Dome Legs

Dome Shutters

Dome

Chimney 3

1-micron scanning aerosol lidar on loan from Herman and Labow/GSFC

Elevation of roof plan

2.1-micron Doppler wind/aerosol lidar

The 7th Annual Southeast Ultrafast and High-Resolution Spectroscopy Conference15-17 January 2004Huntsville, AL


The UAH Atmospheric Chemistry Program

Collaborators

Global Hydrology and Climate Center / MSFCLaboratory for Atmospheres / GSFC

Climate Diagnostics and Monitoring Lab / NOAAAtmospheric Chemistry Division / NCAR

Aerosol Research Branch /LaRCAtmospheric Chemistry Division / JPL

Aeronomy Lab / NOAANational Weather Service

Cal State, NorthridgeCal Tech

Georgia TechHampton UniversityHarvard University

Pusan National University, S. KoreaSt. Louis University

St. Petersburg University, Russia


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.


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


How well can we model the ozone vertical variation?

(July 4) (July 19) (July 24)(June29)

TN

LON: -86.57, LAT: 36.25


Huntsville Ozonesonde Station


NSSTC Regional Atmospheric Profiling Center

for DiscoveryRAPCD

Acrobat Document

Doppler lidar bench

FTIR benchtrop aerosol lidar bench

strat /trop lidar bench

~NORTH

horizontalsky-view

Janu ary 10, 2001each f loorspace square i s 2 f t x 2 f t; each laboratory fl oorspace is 20 ft E to W x 22.5 f t N to S

white circles wi th soli d borders show posi tions of l ight chi mneys, accurate to 1/2 i nch, and interior diametersfaded blue blocks around light chimneys show opt ical benches in laboratories below

cherry pi cker boom circle indicates minim um boom length

scanner

FTIR LAB ROOF PLANLIDAR LAB ROOF PLAN

ped estal

on roo f for5 ft cherry

picker

48”30”

30” 30”

semi-t ransparent green bl ock shows elevatedscanner platform on roof,

15 ft E to W and 26 ft N to Sapprox 2 f t clearance on outer walkway

9’

13’

17’

13’ 9”

13’

11’

8’ 3”

13’ 9”

26’

21’ 8”

support pi llar

8 footDoppler

lidarscancircle


picker


picker

30” 30”

30” 30”

7 footrooflidar

domeon

8 footbase

8’ 3”

Acrobat DocumentOzone Lidar

Doppler Lidar Scanner

Lockedat zenith

Grating TopDome Floor

Roof Top

DomeSidewall

RailingHorizontal FTIR

Solar FTIR

Lid Closed

Lid Closed

Lid

Op

en

Lid

Op

en

Dome Floor

Chimney 2

Chimney 4

Chimney 5

Chimney 1

Dome Legs

Dome Shutters

Dome

Chimney 3


NSSTC Regional Atmospheric Profiling Center for Discovery

RAPCDPlatform 1 Chimneys Doppler Chimney

Johnson, Emmitt, Bowdle, Newchurch, Burris, Jarzembski

Ozone DIAL first light


RAPCD rooftop platform for sky-viewing instruments


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-SeparatorDoubler

Doubler Separator

=1064nm

=1064nm

=1064nm

=1064nm

=532nm

=532nm

=291nm

=285nm

=582nm

=570nm

=578nm

=598nm

Doubler & Separator

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.

Telescop

e


Scanning aerosol lidar


MSFC Ground-based Doppler Lidar


NPS: Annual average extinction coefficients (Mm-1 )

Huntsville, AL. A Researcher’s Paradisefor Science of the Atmospheric Aerosol

‘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


AORApplied Microparticle Optics and Radiometry


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)

Defense Universities Research Instrumentation Program (DURIP)

Fourier Transform Spectrometer, 1-30 mMueller Matrix Polarimetry Module Multiangle Reflectometry ModuleMicro-Orifice Uniform Deposit Impactor (MOUDI)Optical Particle Counter

Instrumentation for PM Analysis

Applied Microparticle Optics

and Radiometry

AOR

NSF for Development of TANdem INtegrating Sphere (TANINS) Absorption Meter


City of Huntsville Division of Natural

Resources (Air Quality)

EPA: Office of Research and Development

Aerosol measurements and Radiometry, Sipsey Wilderness Area

Partnerships and Collaborations

Applied Microparticle Optics

and Radiometry

AOR

Biological and Physical Sciences

Dusty plasma lab

Satellite Archaeology



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



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



for DiscoveryRAPCD

Applications

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.


nsstc.uah.edu/atmchem

1 Mike3/papers/tropoz/aguf98 12/2/98 16:30 Mike Newchurch Atmospheric Science Dept. UAH Ozone Lidar...

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Transcript of 1 Mike3/papers/tropoz/aguf98 12/2/98 16:30 Mike Newchurch Atmospheric Science Dept. UAH Ozone Lidar...