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Timothy A. Bonin, Brian J. Carroll, R. Michael Hardesty, W. Alan Brewer, Kristian Hajny, Olivia E. Salmon, and Paul B. Shepson

difficulty distinguishing the nocturnal mixing layer (ML) from the residual layer at night and during morning and evening transition periods ( Schween et al. 2014 ). Doppler lidar observations have been used to estimate the MH, most often using either backscatter or turbulence information from vertical stares (e.g., Hogan et al. 2009 ; Barlow et al. 2011 ; Huang et al. 2017 ). Tucker et al. (2009) evaluates the accuracy of various techniques and finds that vertical velocity variance generally

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R. T. H. Collis, F. G. Fernald, and J. E. Alder

APRXL 1968 R. T. H. COLLIS, F. G. FERNALD AND J. E. ALDER 227Lidar Observations of Sierra-Wave Conditions R. T. H. Co~s, F. G. FERNALD AND J. E. ALDERStanford Research Institute, Menlo Park, Calif.(Manuscript received 18 October 1967, in revised form 8 January 1968) ABSTRACT Early in 1967 a series of observations using pulsed ruby lidars were made near Independence, Calif

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W. Viezee, R. T. H. Collis, and J. D. Lawrenee Jr.

140 JOURNAl, OF APPI, IED METEOROLOGY VOLUMEI2An Investigation of Mountain Waves with Lidar Observations~ W. VmZEE ,UqD R. T. H. CoLusStanford Research Institut,, M~nlo Park, Calif. 940Z5 ANn J. D. LAWRENCE, JR.Langley Research Center, Hampton, Va. 23365(Manuscript received ? June 1972, in revised form 5 September 1972)ABSTRACT In March and April of 1969 and 1970, lidar (laser radar) observations of

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Zhigang Li, Christian Lemmerz, Ulrike Paffrath, Oliver Reitebuch, and Benjamin Witschas

-nadir angle. Menzies et al. (1998) described the sea surface reflectance and the link to surface wind speed with observations from the space-based Lidar In-Space Technology Experiment (LITE), and provided expressions for a sea surface reflectance model. The measurements at wavelengths of 1064, 532, and 355 nm were used for the analysis of sea surface reflectance: the 1064-nm data could be fitted well with the model curves; the 532- and 355-nm channels showed a large difference for large off-nadir angles

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Rod Frehlich, Yannick Meillier, and Michael L. Jensen

technique for these situations is selecting a suitable averaging interval to define the mean and turbulent quantities for both in situ observations ( Kaimal and Finnigan 1994 ; Mahrt 1998 ; Vickers and Mahrt 2003 ) and remotely sensed measurements such as Doppler lidar ( Banta et al. 2003 , 2006 ). The optimal choice of the averaging time is difficult to quantify when there is no obvious scale separation between the forcing mechanisms and turbulence. The effects of the larger mesoscale forcing on

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S. A. Ackerman, R. E. Holz, R. Frey, E. W. Eloranta, B. C. Maddux, and M. McGill

yield large differences regionally. The studies presented in this section provide insight into the sensitivity of the cloud mask algorithm results to instrument characteristics and algorithm thresholds. Awareness of this sensitivity is necessary for comparing the MODIS cloud detection to other observations covered in the next section. 4. Comparison with lidar/radar observations a. Ground-based observations The performance of the MODIS cloud mask has been addressed in several recent papers ( King et

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Donald C. Norquist, Paul R. Desrochers, Patrick J. McNicholl, and John R. Roadcap

provide guidance to high-altitude laser system designers based on observations of actual cirrus events. Instrumentation included a ground-based cloud profiling radar and lidar, radiosondes, and satellite imagery from the the National Oceanic and Atmospheric Administration’s Geostationary Operational Environmental Satellite-12 ( GOES-12 ). Without in situ ice crystal measurements available, the goal was to see if cirrus measurements from radiosondes and satellite imagery could be used as a proxy for

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Michael Hill, Ron Calhoun, H. J. S. Fernando, Andreas Wieser, Andreas Dörnbrack, Martin Weissmann, Georg Mayr, and Robert Newsom

larger-scale flows in the lee of mountains ( Doyle and Durran 2007 ). These simulations are helping to illuminate the importance of surface friction in rotor development by showing, for example, that rotors can fail to develop, even in instances of high shear, if the atmospheric state is unfavorable for lee wave formation. In this paper, we show that two coherent Doppler lidar scanning the same vertical–horizontal plane can provide direct observational evidence showing the spatial extent, strength

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J. D. Spinhirne, R. Boers, and W. D. Hart

VOLUME28 JOURNAL OF APPLIED METEOROLOGY FEBRUARY 1989Cloud Top Liquid Water from Lidar Observations of Marine Stratocumulus J. D. SPINHIRNE, R. BOERS* AND W. D. HART~NASA/Goddard Space Flight Center, Laboratory for Atmospheres, Greenbelt, Maryland(Manuscript received 27 August 1987, in final form 29 February 1988) ABSTRACT Marine stratus clouds were simultaneously observed by nadir Nd

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Rasmus Lindstrot, Rene Preusker, Thomas Ruhtz, Birgit Heese, Matthias Wiegner, Carsten Lindemann, and Jürgen Fischer

-top heights accurately. The cloud-top height was defined by that range bin that detected the maximum number of photons. In case of cloud-free conditions, the surface return in the lidar data was used to check the flight height as determined from the GPS system. 3. Experiment a. Flights The maximum flying altitude of the aircraft was around 3000 m, limiting the observations to low-level clouds. Altogether, 12 flights were conducted in the northeastern part of Germany between April and June of 2004. The

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