Journal of the Atmospheric Sciences: Recent submissions
Now showing items 381-400 of 13215
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Linear Inverse Modeling of Large-Scale Atmospheric Flow Using Optimal Mode Decomposition
(American Meteorological Society, 2022)Linear inverse modeling or principal oscillation pattern (POP) analysis is a widely applied tool in climate science for extracting from data dominant spatial patterns together with their dynamics as approximated by a linear ... -
Contribution of Dissipative Heating to the Intensity Dependence of Tropical Cyclone Intensification
(American Meteorological Society, 2022)Previous studies have demonstrated the contribution of dissipative heating (DH) to the maximum potential intensity (MPI) of tropical cyclones (TCs). Since DH is a function of near-surface wind speed and thus TC intensity, ... -
Diurnal Cycle and Dipolar Pattern of Precipitation over Borneo during an MJO Event: Lee Convergence and Offshore Propagation
(American Meteorological Society, 2022)Surface precipitation anomalies over Maritime Continent islands typically lead oceanic precipitation by a week in the form of dipolar pattern before the arrival of Madden–Julian oscillation (MJO) convective phase. The ... -
The Influence of the Diurnal Cycle in Wind Shear and Thermodynamics on Squall Lines in the West African Monsoon
(American Meteorological Society, 2022)The West African monsoon has a clear diurnal cycle in boundary layer properties, synoptic flow, and moist convection. A nocturnal low-level jet (LLJ) brings cool, moist air into the continent and we hypothesize that it may ... -
On the Tropospheric Response to Transient Stratospheric Momentum Torques
(American Meteorological Society, 2022)An idealized model is used to examine the tropospheric response to sudden stratospheric warmings (SSWs), by imposing transient stratospheric momentum torques tailored to mimic the wave-forcing impulse associated with ... -
The Transition from Practical to Intrinsic Predictability of Midlatitude Weather
(American Meteorological Society, 2022)This study investigates the transition from current practical predictability of midlatitude weather to its intrinsic limit. For this purpose, estimates of the current initial condition uncertainty of 12 real cases are ... -
Quantifying Uncertainty in Ice Particle Velocity–Dimension Relationships Using MC3E Observations
(American Meteorological Society, 2022)Ice particle terminal fall velocity ( -
Improvements of the Double-Moment Bulk Cloud Microphysics Scheme in the Nonhydrostatic Icosahedral Atmospheric Model (NICAM)
(American Meteorological Society, 2022)This study revises the collisional growth, heterogeneous ice nucleation, and homogeneous ice nucleation processes in a double-moment bulk cloud microphysics scheme implemented in the Nonhydrostatic Icosahedral Atmospheric ... -
Hydrometeor Storage and Advection Effects in DYNAMO Budget Analyses
(American Meteorological Society, 2022)The Dynamics of the Madden–Julian Oscillation (MJO) (DYNAMO) field campaign over the central Indian Ocean captured three strong MJO events during October–December 2011. Using the conventional budget approach of Yanai et al. ... -
A Scaling Theory for the Diffusivity of Poleward Eddy Heat Transport Based on Rhines Scaling and the Global Entropy Budget
(American Meteorological Society, 2022)Diffusive theories for the meridional atmospheric energy transport can summarize our understanding of this central aspect of the general circulation. They can also be utilized in simple models of Earth’s energy balance to ... -
Atmospheric Cold Pools in the Bay of Bengal
(American Meteorological Society, 2022)Atmospheric cold pools, generated by evaporative downdrafts from precipitating clouds, are ubiquitous in the Bay of Bengal. We use data from three moorings near 18°N to characterize a total of 465 cold pools. The cold pools ... -
Importance of Diabatic Heating for the Eastward-Moving Heavy Rainfall Events along the Yangtze River, China
(American Meteorological Society, 2022)This study highlights the importance of the diabatic process in the heavy rainfall events (HREs) that are initiated on the eastern slope of the Tibetan Plateau and move to the lower reaches of the Yangtze River basin. These ... -
Potential Intensification Rate of Tropical Cyclones in a Simplified Energetically Based Dynamical System Model: An Observational Analysis
(2022)In a recent study by Wang et al. that introduced a dynamical efficiency to the intensification potential of a tropical cyclone (TC) system, a simplified energetically based dynamical system (EBDS) model was shown to be ... -
The Spatiotemporal Evolution of the Diurnal Cycle in Two WRF Simulations of Tropical Cyclones
(2022)The properties of diurnal variability in tropical cyclones (TCs) and the mechanisms behind them remain an intriguing aspect of TC research. This study provides a comprehensive analysis of diurnal variability in two simulations ... -
Mesoscale Predictability in Moist Midlatitude Cyclones Is Not Sensitive to the Slope of the Background Kinetic Energy Spectrum
(2022)We investigate the sensitivity of mesoscale atmospheric predictability to the slope of the background kinetic energy spectrum E by adding initial errors to simulations of idealized moist midlatitude cyclones at several ... -
Large-Eddy Simulations of Marine Boundary Layer Clouds Associated with Cold-Air Outbreaks during the ACTIVATE Campaign. Part I: Case Setup and Sensitivities to Large-Scale Forcings
(2022)Large-eddy simulation (LES) is able to capture key boundary layer (BL) turbulence and cloud processes. Yet, large-scale forcing and surface turbulent fluxes of sensible and latent heat are often poorly prescribed for LESs. ... -
Observations of the Development and Vertical Structure of the Lake-Breeze Circulation during the 2017 Lake Michigan Ozone Study
(2022)Ground-based thermodynamic and kinematic profilers were placed adjacent to the western shore of Lake Michigan at two sites as part of the 2017 Lake Michigan Ozone Study. The southern site near Zion, Illinois, hosted a ... -
The Amplification of Madden–Julian Oscillation Boosted by Temperature Feedback
(2021)Due to a small Coriolis force in tropics, the theoretical study of Madden–Julian oscillation (MJO) often assumes weak temperature gradient balance, which neglects the temperature feedback (manifested in the temperature ... -
New Empirical Formulation for the Sublimational Breakup of Graupel and Dendritic Snow
(2022)Ice fragments are generated by sublimation of ice particles in subsaturated conditions in natural clouds. Conceivably, such sublimational breakup would be expected to cause ice multiplication in natural clouds. Any fragment ... -
Scale Sensitivity of the Gill Circulation. Part I: Equatorial Case
(2021)We investigate the steady dynamical response of the atmosphere on the equatorial β plane to a steady, localized, midtropospheric heating source at the equator. Expanding Gill’s seminal work, we vary the latitudinal and ...