A5010138272- Climate variability and models
- Meteorological Phenomena and Simulations
- Atmospheric Ozone and Climate
- Tropical and Extratropical Cyclones Research
- Oceanographic and Atmospheric Processes
- Ionosphere and magnetosphere dynamics
- Spectroscopy and Laser Applications
- Tree-ring climate responses
Scripps Institution of Oceanography
2023-2025
University of California, San Diego
2023-2025
Abstract The Madden‐Julian oscillation (MJO) has remarkable impacts on global weather and climate systems. This study examines the future changes in MJO projected by 23 Coupled Model Intercomparison Project Phase 6 (CMIP6) models that produce a realistic propagation their historical runs. Results from multi‐model mean show ∼17% increase precipitation amplitude, ∼11%–14% circulation ∼9% speed, ∼2‐day decrease period, ∼5° eastward extension. Analysis of lower tropospheric moisture budget...
<title>Abstract</title> The value of Madden-Julian oscillation (MJO) prediction for extratropical subseasonal forecasts hinges on the assumption that reliable MJO simulation translates to its teleconnections. This study discusses and teleconnections in two recently developed NOAA Unified Forecast System (UFS) coupled model prototypes: Prototype 7 (UFS7) 8 (UFS8). is skillfully predicted at a lead time 27 days UFS8, which considerable improvement (~ one-week skill increase) compared UFS7....
Abstract Atmospheric rivers (ARs) are narrow corridors of intense water vapor transport, shaping precipitation, floods, and economies. Temporal clustering ARs tripled losses compared to isolated events, yet the reasons behind this remain unclear. AR orientation further modulates hydrological impacts through terrain interaction. Here we identify unique over North Pacific Western U.S. utilize Cox regression composite analysis examine how six major climate modes influence temporal during...
Abstract This study continues the evaluation of prediction MJO teleconnections in two versions NOAA Unified Forecast System (UFS): prototype 5 (UFS5) and 6 (UFS6). The key difference between prototypes is number vertical layers (127 UFS6 vs. 64 UFS5) model top (80 km 54 UFS5), role this increased resolution for stratospheric pathway explored. higher (UFS6) displays larger biases its representation tropospheric stationary waves, though both simulate a reasonable flux wave activity entering...
The Madden-Julian oscillation (MJO) has remarkable impacts on global weather and climate systems. Understanding its changes under a warming provides insights into how MJO-related phenomena may change accordingly. This study examines the future in MJO projected by 23 Coupled Model Intercomparison Project Phase 6 (CMIP6) models that produce realistic propagation their historical runs. Results from multi-model mean show ~17% increase precipitation amplitude, ~9% speed, ~2-day decrease period,...