Browsing by Author "Zhang, Fuqing"
Now showing items 1-20 of 27
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Zhang, Fuqing; Wei, Junhong; Zhang, Meng; Bowman, K. P.; Pan, L. L.; Atlas, E.; Wofsy, S. C. (Atmospheric Chemistry and Physics, 2015)
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Reynolds, Amber Elizabeth (2009-05-15)Mesoscale convective vortices (MCVs), which typically form within the stratiform rain of some mesoscale convective systems (MCSs), may persist for days, often regenerating convection daily. Long-lived MCVs can produce as ...
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Smith, Jamie Brooke (Texas A&M University, 2006-08-16)The baroclinic and surface-frictional contributions to stratified wake formation are considered as a function of the non-dimensional height ( = Nho/U) and aspect-ratio ( = ho/L) of the barrier. Numerical simulations are ...
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Qian, Tingting (2010-07-14)Two problems in mesoscale wave dynamics are addressed: (i) wave-turbulence interaction in a breaking mountain wave and (ii) gravity wave generation associated with coastal heating gradients. The mean and turbulent structures ...
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McRoberts, Douglas Brent (Texas A&M University, 2008-10-10)This research looks at the past century of Texas and New Mexico climate in order to create datasets sufficient for documenting climatic variations. Inhomogeneities in climate records are defined as variations in climatic ...
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Sippel, Jason A. (2010-01-15)Through methodology unique for tropical cyclones in peer-reviewed literature, this study explores how the dynamics of moist convection affects the predictability of tropical cyclogenesis. Mesoscale models are used to perform ...
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Hopper, Jr., Larry John (2009-05-15)Divergence structures associated with the spectrum of precipitating systems in the subtropics and midlatitudes are not well documented. A mesoscale model (MM5) is employed to quantify the relative importance different ...
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Rigney, Matthew C. (2010-01-16)This thesis presents an investigation of ensemble Gaussianity, the effect of non- Gaussianity on covariance structures, storm-centered data assimilation techniques, and the relationship between commonly used data assimilation ...
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Aksoy, Altug; Zhang, Fuqing; Nielsen-Gammon, John (2016-10-28)The performance of the ensemble Kalman filter (EnKF) in forced, dissipative flow under imperfect-model conditions is investigated through simultaneous state and parameter estimation where the source of model error is the ...
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Evaluation of Planetary Boundary Layer Scheme Sensitivities for the Purpose of Parameter Estimation Hu, Xiao-Ming; Nielsen-Gammon, John; Zhang, Fuqing; Pleim, Jonathan (American Meteorological Society, 2010-09-01)Meteorological model errors caused by imperfect parameterizations generally cannot be overcome simply by optimizing initial and boundary conditions. However, advanced data assimilation methods are capable of extracting ...
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Hu, Xiao-Ming; Nielsen-Gammon, John; Zhang, Fuqing (American Meteorological Society, 2010-09-01)Accurate depiction of meteorological conditions, especially within the planetary boundary layer (PBL), is important for air pollution modeling, and PBL parameterization schemes play a critical role in simulating the boundary ...
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Wang, Shuguang (2009-05-15)The dissertation first investigates gravity wave generation and propagation from jets within idealized vortex dipoles using a nonhydrostatic mesoscale model. Several initially balanced and localized jets induced by vortex ...
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Han, Sang-Ok (Texas A&M University, 2005-11-01)This study developed a parameterization method to investigate the impacts of inhomogeneous land surfaces on mesoscale model simulations using a high-resolution 1-d PBL model. Then, the 1-d PBL model was used to investigate ...
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Li, Guohui (2009-05-15)In this dissertation, a two-moment bulk microphysical scheme with aerosol effects is developed and implemented into the Weather Research and Forecasting (WRF) model to investigate the aerosol-cloud interaction. Sensitivities ...
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Wen, Caihong (2010-10-12)An eddy-permitting 2-1/2-layer Reduced Gravity Ocean (RGO) model is developed. Compared with the conventional 2-1/2-layer RGO models, the new model has improvements in subsurface thermodynamics, vertical mixing scheme and ...
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Aksoy, Altug (Texas A&M University, 2005-11-01)The performance of the ensemble Kalman filter (EnKF) in forced, dissipative flow under imperfect model conditions is investigated through simultaneous state and parameter estimation where the source of model error is the ...
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Odins, Andrew Michael (Texas A&M University, 2005-02-17)During the period of June 29 through July 6, 2002, an extreme precipitation event occurred over Texas, resulting in catastrophic flooding. Operational forecasts performed poorly, neither predicting the copious amounts of ...
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Zhang, Fuqing; Odins, Andrew; Nielsen-Gammon, John (American Meteorological Society, 2006-04-01)A mesoscale model is used to investigate the mesoscale predictability of an extreme precipitation event over central Texas on 29 June 2002 that lasted through 7 July 2002. Both the intrinsic and practical aspects of ...
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Sahoo, Debabrata (2009-05-15)Environmental flows are important to maintain the ecological integrity of the estuary. In a watershed, it is influenced by land use land cover (LULC) change, climate variability, and water regulations. San Antonio, Texas, ...
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Sippel, Jason Allen (Texas A&M University, 2005-02-17)This thesis contains an observational analysis of the genesis of Tropical Storm Allison (2001). Using a paradigm of tropical cyclone formation as the superposition of potential vorticity (PV) anomalies, the importance of ...