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Dana Mueller, Bart Geerts, Zhien Wang, Min Deng, and Coltin Grasmick

associated with a nocturnal MCS. This observational case study is unique in that it explores the evolution of the vertical structure of a bore. While other fixed, surface-based profiling observations depict a blend of distance and time evolution, this study uses airborne profiling lidar data, providing a series of quasi-instantaneous vertical transects, at a time resolution corresponding with the frequency of flight traverses across the bore (in this case 10–15 min). Another advantage to using an

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Philip T. Bergmaier and Bart Geerts

of airborne radar and lidar observations of a New York Finger Lakes LE snow event. The observations are unique in the sense that airborne measurements of any kind within LE cloud bands have generally been obtained from bands over the much larger Great Lakes, primarily Lake Michigan (e.g., Passarelli and Braham 1981 ; Kelly 1982 , 1984 ; Braham 1990 ; Chang and Braham 1991 ; Braham et al. 1992 ; Braham and Dungey 1995 ; Kristovich et al. 2003 ; Schroeder et al. 2006 ; Yang and Geerts 2006

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Ross N. Hoffman, Christopher Grassotti, Ronald G. Isaacs, Jean-Francois Louis, Thomas Nehrkorn, and Donald C. Norquist

DECEMBER 1990 HOFFMAN ET AL. 2513Assessment of the Impact of Simulated Satellite Lidar Wind and Retrieved 183 GHz Water Vapor Observations on a Global Data Assimilation SystemRoss N. HOFFMAN, CHRISTOPHER GRASSOTTI, RONALD G. ISAACS, JEAN-FRANCOIS LOUIS, AND THOMAS NEHRKORN Atmospheric and Environmental Research, Inc., Cambridge, Massachusetts DONALD C. NORQUISTGeophysics Laboratory, Air

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Arnout Feijt and André van Lammeren

derivation of cloudproperties. Ground-based measurements from a lidar ceilometer and an infrared radiometer were combined withmeasurements of the NOAA Advanced Very High Resolution Radiometer and Meteosat satellite insmunents. Twocase studies ate presented: a case with streets of fair weather cumuli and a case with a weak cold front involvingcumulus, slratus, and cirrus clouds. From the combination of ground-based and satellite observations, a much betterdescription of the cloud field geomela'y, cloud

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Steven E. Koch, Paul B. Dorian, R. Ferrare, S. H. Melfi, William C. Skillman, and D. Whiteman

, Laurel Maryland *Universities Space Research Association, NASA/Goddard Space Flight Center, Greenbelt, Maryland # NASA /Goddard Space Flight Center, Laboratory Jbr Terrestrial Physics, Greenbelt, Maryland (Manuscript received 16 April 1990, in final form 31 August 1990) ABSTRACT Detailed moisture observations from a ground-based Raman lidar and special radiosonde data of two disturbances associated with a dissipating gust front are presented. A synthesis of the

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M. Weissmann, F. J. Braun, L. Gantner, G. J. Mayr, S. Rahm, and O. Reitebuch

. J. Geophys. Res. , 102 , 16663 – 16682 . Nyeki , S. , and Coauthors , 2002 : Airborne lidar and in-situ aerosol observations of an elevated layer, leeward of the European Alps and Apennines. Geophys. Res. Lett. , 29 . 1852, doi:10.1029/2002GL014897 . Rahm , S. , R. Simmet , and M. Wirth , 2003 : Airborne two micron coherent lidar wind profiles. Proc. 12th Coherent Laser Radar Conf., Bar Harbor, ME, 94–97 . Raymond , D. , and M. Wilkening , 1980 : Mountain

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Jason A. Otkin, Daniel C. Hartung, David D. Turner, Ralph A. Petersen, Wayne F. Feltz, and Erik Janzon

periods with little manual intervention. Profile observations were created to emulate the Doppler wind lidar (DWL), microwave radiometer (MWR), and Atmospheric Emitted Radiance Interferometer (AERI) sensors. Observations were also created to emulate the state-of-the-art Raman lidar (RAM) system run operationally at the Department of Energy’s Atmospheric Radiation Measurement (ARM) site in north-central Oklahoma ( Goldsmith et al. 1998 ; Turner et al. 2000 , 2002 ); however, this sensor is currently

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David B. Parsons, Melvyn A. Shapiro, R. Michael Hardesty, Robert J. Zamora, and Janet M. Intrieri

obtained from the Doppler lidar measurementswere combined with the equations of motion to derive perturbation fields of pressure and virtual potentialtemperature By. Our observations indicate that the circulations associated with this retrogressing dryline weredominated by hot, dry air riding over a westward moving denser, moist flow in a manner similar to a densitycurrent. Gravity waves were observed above the dryline interface. Previous observational and numerical studieshave shown that differential

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Ali Behrangi, Terry Kubar, and Bjorn Lambrigtsen

launch and operation of the millimeter-wavelength cloud-profiling radar (CPR) ( Im et al. 2005 ) on CloudSat ( Stephens et al. 2002 ) and the Cloud–Aerosol Lidar with Orthogonal Polarization (CALIOP) ( Winker et al. 2007 ) on Cloud–Aerosol Lidar and Infrared Pathfinder Satellite Observations ( CALIPSO ) occurred in late April 2006, and has offered unprecedented opportunities for global studies of hydrometeors and the vertical structure of cloud systems. CloudSat and CALIPSO are part of the A

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David O'C. Starr, C. Laurence Korb, Geary K. Schwemmer, and Chi Y. Weng

June 1991, in final form 29 April 1992) Airborne observations using a downward-looking, dual-frequency, near-infrared, differential absorption lidar(DIAL) system provide the first measurements of the height-dependent pressure-perturbation field associatedwith a strong mesoscale gravity wave. A pressure-perturbation amplitude of 3.5 mb was measured within thelowest 1.6 km of the atmosphere over a 52.kin flight line. Corresponding vertical displacements of 250-500 mwere inferred from lidar

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