Alexander Gershunov

Subseasonal Prediction of Impactful California Winter Weather in a Hybrid Dynamical‐Statistical Framework

Subseasonal prediction of impactful California weather in a hybrid dynamical-statistical framework

Atmospheric rivers (ARs) and Santa Ana winds (SAWs) are impactful weather events for California communities. Emergency planning efforts and resource management would benefit from …

Subseasonal prediction of impactful California weather in a hybrid dynamical-statistical framework

Atmospheric rivers (ARs) and Santa Ana winds (SAWs) are impactful weather events for California communities. Emergency planning efforts and resource management would benefit from …

Observed and projected changes in snow accumulation and snowline in California's snowy mountains

The Sierra Nevada and Southern Cascades-California's snowy mountains-are primary freshwater sources and natural reservoirs for the states of California and Nevada. These …

Development of a Statistical Subseasonal Forecast Tool to Predict California Atmospheric Rivers and Precipitation Based on MJO and QBO Activity

This paper examines the empirical relationship between the Madden-Julian oscillation (MJO), the quasi-biennial oscillation (QBO), and atmospheric river (AR) activity and …

Winter wet-dry weather patterns driving atmospheric rivers and Santa Ana winds provide evidence for increasing wildfire hazard in California

Floods caused by atmospheric rivers and wildfires fanned by Santa Ana winds are common occurrences in California with devastating societal impacts. In this work, we show that …

Four Atmospheric Circulation Regimes Over the North Pacific and Their Relationship to California Precipitation on Daily to Seasonal Timescales

Precipitation in California is highly variable and not well forecasted on subseasonal-to-seasonal (S2S) timescales. Understanding relationships between synoptic-scale …

Supplementary material to “Atmospheric River Tracking Method Intercomparison Project (ARTMIP): Project Goals and Experimental Design”

Circulation Drivers of Atmospheric Rivers at the North American West Coast

Atmospheric rivers (ARs) are mechanisms of strong moisture transport capable of bringing heavy precipitation to the West Coast of North America, which drives water resources and …

Atmospheric River Tracking Method Intercomparison Project (ARTMIP): Project Goals and Experimental Design

The Atmospheric River Tracking Method Intercomparison Project (ARTMIP) is an international collaborative effort to understand and quantify the uncertainties in atmospheric river …