Results 21 to 30 of about 213,098 (343)

A new modelling framework for statistical cumulus dynamics [PDF]

, 2011
We propose a new modelling framework suitable for the description of atmospheric convective systems as a collection of distinct plumes. The literature contains many examples of models for collections of plumes in which strong simplifying assumptions are ...
Landau L. D., van Kampen N. G.
core   +2 more sources

Impact of Interactive Vertical Overlap of Cumulus and Stratus on Global Aerosol, Precipitation, and Radiation Processes in the Seoul National University Atmosphere Model Version 0 With a Unified Convection Scheme (SAM0‐UNICON)

Journal of Advances in Modeling Earth Systems, 2019
The previously proposed parameterization for the integrated vertical overlap of cumulus and stratus is generalized to handle both conventional exponential‐random stratus overlap and nonconventional (i.e., other than exponential‐random) cumulus overlap in
Sungsu Park, Eunsil Oh, Siyun Kim, Jihoon Shin   +3 more
doaj   +1 more source

Impact of multiple radar reflectivity data assimilation on the numerical simulation of a flash flood event during the HyMeX campaign [PDF]

, 2017
An analysis to evaluate the impact of multiple radar reflectivity data with a three-dimensional variational (3-D-Var) assimilation system on a heavy precipitation event is presented. The main goal is to build a regionally tuned numerical prediction model
Baldini, Luca, Ferretti, Rossella, Gentile, Sabrina, Maiello, Ida, Paolo Alberoni, Pier, Picciotti, Errico, Roberto, Nicoletta, Silvio Marzano, Frank   +7 more
core   +3 more sources

Evaluation of an entraining droplet activation parameterization using in situ cloud data [PDF]

, 2011
This study investigates the ability of a droplet activation parameterization (which considers the effects of entrainment and mixing) to reproduce observed cloud droplet number concentration (CDNC) in ambient clouds.
A. Nenes, Abdul-Razzak, Arabas, Baker, Barahona, Barahona, Barahona, Burnet, Chosson, Conant, de Rooy, Fountoukis, Fountoukis, H. Jonsson, Hsieh, Hsieh, Intergovernmental Panel on Climate Change, J. H. Seinfeld, Khairoutdinov, Kim, Krueger, Kumar, Lasher-Trapp, Latham, Leaitch, Lehmann, Liu, Lohmann, Lu, Meskhidze, Ming, Morales, Morrison, Nenes, Peng, Pruppacher, R. C. Flagan, R. Morales, Stevens, Tiedtke, Twomey, VanReken, Warner, Warner   +43 more
core   +2 more sources

Numerical Simulations of the South American Low Level Jet in Two Episodes of MCSs: Sensitivity to PBL and Convective Parameterization Schemes

Advances in Meteorology, 2016
The sensitivity of numerical simulations of the low level jet stream (LLJS) in South America to the choice of parameterization schemes for the planetary boundary layer (PBL) and for cumulus convection using the Advanced Research core of the Weather ...
Daniel Caetano Santos, Ernani de Lima Nascimento   +1 more
doaj   +1 more source

Evaluation of Optimized WRF Precipitation Forecast over a Complex Topography Region during Flood Season

Atmosphere, 2016
In recent years, the Weather Research and Forecast (WRF) model has been utilized to generate quantitative precipitation forecasts with higher spatial and temporal resolutions.
Yuan Li, Guihua Lu, Zhiyong Wu, Hai He, Jun Shi, Yuexiong Ma, Shichuang Weng   +6 more
doaj   +1 more source

A Thermal Plume Model for the Martian Convective Boundary Layer [PDF]

, 2013
The Martian Planetary Boundary Layer [PBL] is a crucial component of the Martian climate system. Global Climate Models [GCMs] and Mesoscale Models [MMs] lack the resolution to predict PBL mixing which is therefore parameterized.
Colaïtis, Arnaud, Forget, François, Hourdin, Frédéric, Millour, Ehouarn, Rio, Catherine, Spiga, Aymeric   +5 more
core   +3 more sources

Tropospheric phase delay in interferometric synthetic aperture radar estimated from meteorological model and multispectral imagery [PDF]

, 2007
ENVISAT Medium Resolution Imaging Spectrometer Instrument (MERIS) multispectral data and the mesoscale meteorological model MM5 are used to estimate the tropospheric phase delay in synthetic aperture radar (SAR) interferograms.
Avouac, Jean-Philippe, Michel, Rémi, Puysségur, Béatrice   +2 more
core   +1 more source

Convective Quasi-Equilibrium Reconsidered

Journal of Advances in Modeling Earth Systems, 2011
The hypothesis of convective quasi-equilibrium states that moist convection reacts almost instantly to drive the atmospheric temperature profile throughout the troposphere to one of a special subset of possible profiles.
David J Raymond, Michael J Herman
doaj   +1 more source

Influence of assimilating rainfall derived from WSR-88D radar on the rainstorm forecasts over the southwestern United States [PDF]

, 2006
In this study, the impact of rainfall assimilation on the forecasts of convective rainfall over the mountainous areas in the southwestern United States is investigated. The rainfall is derived from the U.S.
Gao, X, Sorooshian, S, Xiao, Q, Xu, J
core   +3 more sources