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K. E. Kunkel, E. W. Eloranta, and S. T. Shipley

1306 JOURNAL OF APPLIED METEOROLOGY Vot, uMgl6Lidar Observations of the Convective Boundary LayerK. E. KUNKEL, E. W. ELORANTA AND S. T. SmVLE-Dep~rtnten~ of Meteorology, University of Wisconsin, Madison 53706(Manuscript received 16 May 1977, in revised form 20 September 1977) ABSTRACT A scanning lldar system has been used to observe convection in the atmospheric boundary layer

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Ricardo C. Muñoz and Angella A. Undurraga

stability of the basin air mass have in the MHs derived from the lidar ceilometer. 1) Conceptual model and indices As the most simple framework in which we can analyze our observations of ML over the Santiago Basin, we consider the encroachment or thermodynamic model of convective boundary layer growth ( Stull 1988 , p. 454). In this case the growth of a CBL is estimated by a simple energy balance in which the only heat source of the CBL is the sensible heat flux at the surface. The integral of this

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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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