Supercell thunderstorms produce a variety of hazards, including tornadoes. A supercell will often exist for some time prior to producing a tornado, wh...
Drought is projected to become more severe and widespread as global warming continues in the 21st century, but hydroclimatic changes and their drivers...
The Northern Hemisphere (NH) has experienced winter Arctic warming and continental cooling in recent decades, but the dominant patterns in winter surf...
Over the past decades, Arctic climate has exhibited significant changes characterized by strong pan-Arctic warming and a large-scale wind shift trendi...
The rapid decline of summer Arctic sea ice over the past few decades has been driven by a combination of increasing greenhouse gases and internal vari...
2023 | Journal of the Atmospheric Sciences, 80(2), 397-418
Description:
This study aims to deepen our understanding of the destabilization mechanisms and the mean-state modulation of the convectively coupled Kelvin waves (...
The Madden–Julian oscillation (MJO) exhibits pronounced seasonality, with one of the key unanswered questions being the following: what controls the...
This study investigates why the major convective envelope of the Madden–Julian oscillation (MJO) detours to the south of the Maritime Continent (MC)...
2023 | Journal of the Atmospheric Sciences, 80(1), 235-258
Description:
The impact of the environmental background wind on the diurnal cycle near tropical islands is examined in observations and an idealized model. Luzon I...
2020 | Journal of the Atmospheric Sciences, 77(1), 3-30
Description:
Cloud-resolving simulations are used to evaluate the importance of topography to the diurnal cycle (DC) of precipitation (DCP) over Luzon, Philippines...
2019 | Journal of the Atmospheric Sciences, 76(11), 3633-3654
Description:
Precipitation in the region surrounding the South China Sea over land and coastal waters exhibits a strong diurnal cycle associated with a land–sea ...
The impact of quasi-biweekly variability in the monsoon southwesterly winds on the precipitation diurnal cycle in the Philippines is examined using CM...
The changes of the MJO behavior and its impact on global precipitation, precipitation extremes, and high-frequency variability during the past century...
Differing from classic midlatitude dry baroclinic instability theory, atmospheric motions over the subtropical mei-yu front in boreal summer are domin...
The diversity of the Madden–Julian oscillation (MJO) initiation (i.e., initial onset of active convection before moving eastward) regions was explor...
The southern China (SC) summer rainfall exhibits prominent intraseasonal variability, which exhibits a significant increase in the early 1990s with th...
Hansen et al. found patterns of vertical wind shear, relative humidity (RH), and nonlinear interactions between the Madden–Julian oscillation and El...
The primary atmospheric oscillations and variables associated with subseasonal Atlantic tropical cyclone (TC) activity are identified, based on 37 yea...
2022 | Journal of the Atmospheric Sciences, 79(6), 1585-1600
Description:
The transition to deep convection and associated precipitation is often studied in relationship to the associated column water vapor owing to the wide...
Climate model fidelity in representing ENSO-induced teleconnection is assessed with process-oriented diagnostics that examine a chain of processes, fr...
Many coupled climate models suffer from a late retreat bias in North American monsoon (NAM) simulations, which is manifested by overestimated precipit...
Global models are frequently used for tropical cyclone (TC) prediction and climate projections but have biases in their representation of TCs that are...
A vertically resolved moist static energy (MSE) variance budget framework is used to diagnose processes associated with the development of tropical cy...
Mechanisms that cause changes in Madden–Julian oscillation (MJO) precipitation amplitude under global warming are examined in models from phase 5 of...
Sea level rise (SLR) shows important spatiotemporal variability. A better understanding of characteristics and mechanisms of the variability is critic...
Recent studies suggest springtime wet extremes and summertime dry extremes will occur more frequently in the U.S. Midwest, potentially leading to deva...
2021 | Journal of Hydrometeorology, 22(12), 3141-3158
Description:
Agricultural droughts afflicting the contiguous United States (CONUS) are serious and costly natural hazards. Widespread damage to a single cash crop ...
In a previous study, idealized model simulations of supercell thunderstorms were used to demonstrate support of the hypothesis that wide, intense torn...
Since the 1950s, a countergradient flux term has been added to some K-profile-based first-order PBL schemes, allowing them to simulate the slightly st...
2020 | Journal of Hydrometeorology, 21(4), 615-642
Description:
Evidence for surface and atmosphere coupling is corroborated in both modeling and observation-based field experiments. Recent advances in high-perform...
Explicit attributes of convective storms within convection-allowing model (CAM) forecasts are routinely used as surrogates for convective weather haza...
Herein, 14 severe quasi-linear convective systems (QLCS) covering a wide range of geographical locations and environmental conditions are simulated fo...
Several limited-area 80-member ensemble Kalman filter (EnKF) data assimilation systems with 15-km horizontal grid spacing were run over a computationa...
An objective algorithm is developed for identifying jets in 200-hPa flow and applied to reanalysis data within 2000 km of Atlantic tropical cyclones (...
The original 7-day weighted analog intensity Pacific (WAIP) prediction technique is improved by developing a new version for the preformation stage an...
A statistical–dynamical tropical cyclone (TC) intensity model is developed from a large ensemble of algorithms through evolutionary programming (EP)...
2018 | Journal of Hydrometeorology, 19(8), 1289-1304
Description:
This study addresses the uncertainty of High-Resolution Rapid Refresh (HRRR) quantitative precipitation forecasts (QPFs), which were recently appended...
Five sets of 48-h, 10-member, convection-allowing ensemble (CAE) forecasts with 3-km horizontal grid spacing were systematically evaluated over the co...
This study investigates impacts on convection-permitting ensemble forecast performance of different methods of generating the ensemble IC perturbation...
A feed-forward neural network (NN) was trained to produce gridded probabilistic convective hazard predictions over the contiguous United States. Input...
While convective storm mode is explicitly depicted in convection-allowing model (CAM) output, subjectively diagnosing mode in large volumes of CAM for...
2022 | Journal of Hydrometeorology, 23(4), 505-519
Description:
Increased atmospheric evaporative demand has important implications for humans and ecosystems in water-scarce lands. While temperature plays a signifi...
African easterly waves (AEWs) exert significant influence on local and downstream high-impact weather including tropical cyclone (TC) genesis over the...
2019 | Journal of the Atmospheric Sciences, 76(11), 3529-3552
Description:
Convective processes in the atmosphere over the Maritime Continent and their diurnal cycles have important repercussions for the circulations in the t...
Previous theoretical studies suggest that the topography along the west coast of Australia plays an important role in strengthening and trapping the L...
2019 | Journal of the Atmospheric Sciences, 76(12), 3893-3917
Description:
Observational studies have shown that, on average, the quasi-biennial oscillation (QBO) exhibits a faster phase progression and shorter period during ...
2020 | Journal of Hydrometeorology, 21(11), 2537-2549
Description:
Soil moisture is an important variable for numerous scientific disciplines, and therefore provision of accurate and timely soil moisture information i...
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