Journal of the Atmospheric Sciences: Recent submissions

Now showing items 1261-1280 of 13215

    • What Makes an Annular Mode “Annular”? 

      Gerber, Edwin P.;Thompson, David W. J. (American Meteorological Society, 2016)
      AbstractAnnular patterns with a high degree of zonal symmetry play a prominent role in the natural variability of the atmospheric circulation and its response to external forcing. But despite their apparent importance for ...

    • Tropical Convective Transition Statistics and Causality in the Water Vapor–Precipitation Relation 

      Kuo, Yi-Hung;Neelin, J. David;Mechoso, C. Roberto (American Meteorological Society, 2017)
      AbstractPrevious work by various authors has pointed to the role of lower-free-tropospheric humidity in affecting the onset of deep convection in the tropics. Empirical relationships between column water vapor (CWV) and ...

    • Two Issues Concerning Surface Frontogenesis 

      Mak, Mankin;Lu, Yi;Deng, Yi (American Meteorological Society, 2017)
      AbstractWith the Weather Research and Forecasting (WRF) Model specifically configured to simulate the intensification and evolution of an extratropical baroclinic wave, this study first investigates why cold fronts are ...

    • Variational Iteration Method for Infrared Radiative Transfer in a Scattering Medium 

      Zhang, Feng;Shi, Yi-Ning;Li, Jiangnan;Wu, Kun;Iwabuchi, Hironobu (American Meteorological Society, 2016)
      AbstractA new scheme is proposed for using the variational iteration method (VIM) to solve the problem of infrared radiative transfer in a scattering medium. This scheme allows the zeroth-order solution to be identified ...

    • Untitled 

      Xu, Huiyan;Li, Xiaofan (American Meteorological Society, 2017)
      AbstractIn this study, the 2D and 3D cloud-resolving model simulations of the Tropical Rainfall Measuring Mission (TRMM) Kwajalein Experiment (KWAJEX) are compared to study the impact of dimensionality on barotropic processes ...

    • Regime Transitions in Near-Surface Temperature Inversions: A Conceptual Model 

      Van de Wiel, Bas J. H.;Vignon, Etienne;Baas, Peter;van Hooijdonk, Ivo G. S.;van der Linden, Steven J. A.;Antoon van Hooft, J.;Bosveld, Fred C.;de Roode, Stefan R.;Moene, Arnold F.;Genthon, Christophe (American Meteorological Society, 2017)
      AbstractA conceptual model is used in combination with observational analysis to understand regime transitions of near-surface temperature inversions at night as well as in Arctic conditions. The model combines a surface ...

    • Entrainment versus Dilution in Tropical Deep Convection 

      Hannah, Walter M. (American Meteorological Society, 2017)
      AbstractThe distinction between entrainment and dilution is investigated with cloud-resolving simulations of deep convection in a tropical environment. A method for estimating the rate of dilution by entrainment and ...

    • Structure Function Analysis of Water Vapor Simulated with a Convection-Permitting Model and Comparison to Airborne Lidar Observations 

      Selz, Tobias;Fischer, Lucas;Craig, George C. (American Meteorological Society, 2017)
      AbstractThe spatial scale dependence of midlatitude water vapor variability in the high-resolution limited-area model COSMO is evaluated using diagnostics of scaling behavior. Past analysis of airborne lidar measurements ...

    • Low-Tropospheric Shear in the Structure of Squall Lines: Impacts on Latent Heating under Layer-Lifting Ascent 

      Alfaro, Diego A. (American Meteorological Society, 2016)
      AbstractThis study analyzes the dependence of the intensity of simulated midlatitude squall lines (SLs) at maturity on the strength of the environmental low-tropospheric shear, focusing on the amplitude of the latent heating ...

    • Quantifying the Eddy–Jet Feedback Strength of the Annular Mode in an Idealized GCM and Reanalysis Data 

      Ma, Ding;Hassanzadeh, Pedram;Kuang, Zhiming (American Meteorological Society, 2016)
      AbstractA linear response function (LRF) that relates the temporal tendency of zonal-mean temperature and zonal wind to their anomalies and external forcing is used to accurately quantify the strength of the eddy?jet ...

    • Riming Electrification in Hokuriku Winter Clouds and Comparison with Laboratory Observations 

      Takahashi, Tsutomu;Sugimoto, Soichiro;Kawano, Tetsuya;Suzuki, Kenji (American Meteorological Society, 2016)
      AbstractRiming electrification is the main charge separation mechanism of thunderstorms, occurring mainly during graupel particle?ice crystal collisions. Laboratory experiments have found that charge separation polarity ...

    • The Simulated Response of Diurnal Mountain Winds to Regionally Enhanced Warming Caused by the Snow Albedo Feedback 

      Letcher, Theodore W.;Minder, Justin R. (American Meteorological Society, 2016)
      AbstractThe snow albedo feedback (SAF) is an important climate feature of mountain regions with transient snow cover. In these regions, where patterns of snow cover are largely determined by the underlying terrain, the SAF ...

    • Atmospheric Global Circuit Variations from Vostok and Concordia Electric Field Measurements 

      Burns, G. B.;Frank-Kamenetsky, A. V.;Tinsley, B. A.;French, W. J. R.;Grigioni, P.;Camporeale, G.;Bering, E. A. (American Meteorological Society, 2016)
      AbstractAtmospheric electric field measurements from the Concordia station on the Antarctic Plateau are compared with those from Vostok (560 km away) for the period of overlap (2009?11) and to Carnegie (1915?29) and extended ...

    • Kernel Analog Forecasting of Tropical Intraseasonal Oscillations 

      Alexander, Romeo;Zhao, Zhizhen;Székely, Eniko;Giannakis, Dimitrios (American Meteorological Society, 2016)
      AbstractThis paper presents the results of forecasting the Madden?Julian oscillation (MJO) and boreal summer intraseasonal oscillation (BSISO) through the use of satellite-obtained global brightness temperature data with ...

    • Assessment of the ERA-Interim Winds Using High-Altitude Stratospheric Balloons 

      Duruisseau, Fabrice;Huret, Nathalie;Andral, Alice;Camy-Peyret, Claude (American Meteorological Society, 2017)
      AbstractThis study focuses on the ability of ERA-Interim to represent wind variability in the middle atmosphere. The originality of the proposed approach is that wind measurements are deduced from the trajectories of ...

    • Energetics of Deep Alpine Valleys in Pooling and Draining Configurations 

      Arduini, Gabriele;Chemel, Charles;Staquet, Chantal (American Meteorological Society, 2017)
      AbstractThe Weather Research and Forecasting Model is used to investigate the nocturnal atmospheric boundary layer in a valley that opens either on a wider valley (draining configuration) or on a narrower valley (pooling ...

    • Tropospheric Turbulence over the Tropical Open Ocean: Role of Gravity Waves 

      Bellenger, H.;Wilson, R.;Davison, J. L.;Duvel, J. P.;Xu, W.;Lott, F.;Katsumata, M. (American Meteorological Society, 2017)
      AbstractA large set of soundings obtained in the Indian Ocean during three field campaigns is used to provide statistical characteristics of tropospheric turbulence and its link with gravity wave (GW) activity. The Thorpe ...

    • The Influence of Successive Thermals on Entrainment and Dilution in a Simulated Cumulus Congestus 

      Moser, Daniel H.;Lasher-Trapp, Sonia (American Meteorological Society, 2016)
      AbstractCumulus clouds are frequently observed as comprising multiple successive thermals, yet numerical simulations of entrainment have not investigated this level of detail. Here, an idealized simulated cumulus congestus ...

    • Generation of Gravity Waves by Singular Potential Vorticity Disturbances in Shear Flows 

      Kalashnik, Maxim V.;Chkhetiani, Otto (American Meteorological Society, 2016)
      AbstractThe linear mechanism of generation of gravity waves by potential vorticity (PV) disturbances in flows with constant horizontal and vertical shears is studied. The case of the initial singular distribution of PV, ...

    • Sensitivity of Supercell Simulations to Initial-Condition Resolution 

      Potvin, Corey K.;Murillo, Elisa M.;Flora, Montgomery L.;Wheatley, Dustan M. (American Meteorological Society, 2016)
      AbstractObservational and model resolution limitations currently preclude analysis of the smallest scales important to numerical prediction of convective storms. These missing scales can be recovered if the forecast model ...