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The Regional East Atmospheric Lidar Mesonet (REALM) Raymond M

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The Regional East Atmospheric Lidar Mesonet (REALM) Raymond M The Regional East Atmospheric Lidar Mesonet (REALM) Raymond M. Hoff C. Russell Philbrick Kevin J. McCann Penn State University Belay Demoz Jens Reichardt Kevin Strawbridge JCET/NOAA CREST, UMBC MSC, Center for Atmospheric Research Experiments (CARE) David N. Whiteman Tom McGee Fred Moshary NASA GSFC Barry Gross Sam Ahmed Pat McCormick NOAA CREST,CCNY NOAA CREST, Hampton Demetrius Venable Mike Newchurch Everette Joseph U. Alabama Huntsville NOAA CAS, Howard University What’s a lidar mesonet and why? • Europe has funded several lidar networks (TOR, EARLINET, ….) and this is because funding agencies (EC, national) find value in cooperation across geographic boundaries • In the U.S., agency boundaries (NASA, EPA, NOAA, DOE, etc.) are an impediment to making cooperation on such a lidar network possible Regional East Atmospheric Lidar Mesonet: REALM UMBC CREST GSFC CCNY HU Penn State MSC UAH UMBC Facilities (Hoff and McCann) • ALEX Raman LIDAR –355 nm –N2, H20, Aerosol • Elastic LIDAR – 532 nm, 1064 nm – Aerosols, Boundary Layer, Subvisible Cirrus • UAWL • Integrating nephelometer •GPS Suominet • Bomem AERI Interferometer ALEX is currently being used for AIRS validation during the ABOVE experiment. Comparison of ALEX H2O mixing ratio profile in late April with the Dulles (IAD) radiosonde ∆x = 50 km ∆t ~ 1 hr Elastic Lidar Facility (ELF) - 532/1064 nm backscatter May 15, 2002 Surelite Nd- 30 m fiber- YAG will coupled detector be mounted box will come here off south port UMBC Atmospheric Water vapor Lidar (UAWL) GSFC Scanning Raman Lidar (SRL) 2002 IHOP David Whiteman, Belay Demoz 0.76 m and 0.25m telescopes –High/Low ranges •Nd:YAG (9 W @ 355 nm) •Full aperture scanning •Windows for all-weather operations •12 channel AD/PC data acquisition •Measurements –Water vapor mixing ratio –Aerosol scattering, extinction, depolarization –Cirrus cloud properties –Liquid water REALM Lidar Observation Station CCNY Sam Ahmed Lab Platform Mobile Unit Channels 4 3 Wavelengths 355/532/1064 355/532/1064 (nm) 260-1600 (OPO- 450-1600 (OPO, 0.1 cm-1 BW) 5 cm-1 BW) Rep Rate 20-100 Hz 10 Hz Telescope 20” Dobsonian 14” Cassegrain Detectors PMT and APD PMT and APD Raman Yes Planned DIAL Yes No Support Inst. CIMEL YES MFRSR Penn State LAPS Lidar Facility (heritage from the LAMP instrument) C.Russ Philbrick MSC – RASCAL (Rapid Acquisition Scanning Aerosol Lidar) Kevin Strawbridge • 26’ mobile lab, generators, air/ground communications etc. • 14” optical path, two 24” mirrors (one fixed, one scans) • 50 Hz Nd:YAG, 550mJ @ 1064 nm • 3 m resolution along beam axis • scan speeds of up to several degrees/s MSC - ALIAS (Aerosol Lidar Instrument for Atmospheric Studies) • 10 Hz, Nd:YAG - 1064nm(>500mJ) 532nm (>500mJ) • 14” Celestron Telescope • log amps on both 1064/532 nm • 12-bit data acquisition cards • vertical resolution - 3.75m • temporal resolution - typically 1s - 1 min NSSTC Regional Atmospheric Profiling Center for Discovery RAPCD (Mike Newchurch) Dome Shutters Dome Locked at zenith Acrobat DocumentOzone Lidar 7 foot roof lidar ~NORTH dome on Doppler8 foot Lidar Scanner support pi llar base ter en ped estal o c r r t te on roo f for nte n 13’ ce c e et to 7 ft cherry fe r 8 foot 20 nte picker ox e Do p ple r pr t c lidar ap ee 11’ 6 f sc an 1 strat /trop lidar bench ox cir cle Doppler lidar bench pr ap scanner Chimney 5 30 ” 48” 30” 30” ped estal Solar FTIR ped estal Chimney 4 on roo f for on roo f for 5 ft cherry 7 ft cherry 26’ picker picker Dome Floor 21’ 8” 30 ” 30 ” 30” 30” Chimney17’ 3 Horizontal FTIR sk y-v iew horizontal Railing 13’ trop aerosol lidar bench FTIR bench semi-transparent green bl ock shows elevated 9’ scanner platform on roof, 8’ 3” Dome 15 ft E to W and 26 ft N to S 8’ 3” approx 2 ft clearance on outer walkway 13’ 9” 13’ 9” SidewallLIDAR LAB ROOF PLAN FTIR LAB ROOF PLAN Lid Open Lid Open Janu ary 10, 2001 each floorspace square i s 2 ft x 2 ft; each laboratory floorspace is 20 ft E to W x 22.5 ft N to S white circles with soli d borders show positions of light chi mneys, accurate to 1/2 inch, and interior diameters faded blue blocks around light chimneys show optical benches in laboratories below cherry picker boom circle indicatesLid minimum boom Closedlength Chimney 2 Lid Closed Grating Top wind Chimney 1 Dome Floor Dome Legs 915MHz pyranometer GPSreceiver 5mmast Roof Top radarantenna sodar withoutclutterpanels) T,RH generator electronics inside ceilometer NSSTC Regional Atmospheric Profiling Center for Discovery RAPCD AµOR (Applied Microparticle Optics and Radiometry) MIPS (Mobile Integrated Profiling System) RAPCD MSFC’s Aerosol Optics Measurements Available (X) or Planned (F) For 2002, everyone is on the move. For Calipso validation And AIRMAP and INTEX, maybe we can stay put! ABOVE AIRS BBAERI Ocean Validation Experiment (Wallace McMillan, PI) - AIRS first light experiment July 18 – September 18, 2002 BBAERI (uplooking) ELF (cloud clearing) Snow white radiosondes + standard CERES val. products Invitation • Membership is voluntary • Membership is free (except for QA participation) • Opportunities abound …. Field of Dreams • Build it and they will come…. Corn field Baseball diamond Concession stand and museum Bank (6 miles).
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