Can We Expect More Extratropical Cyclones in a Warming Climate? 17 April 2020

Can We Expect More Extratropical Cyclones in a Warming Climate?

During this transformation, a cyclone's wind and precipitation area increases in size, and the storm may produce large waves and swell as it accelerates forward, which are important changes to understand and predict for risk assessment

Is There a Connection Between MJO and Tornadoes in the United States? 2 April 2020

Is There a Connection Between MJO and Tornadoes in the United States?

With the United States experiencing the largest number of annual tornado events of any country, it’s critical for atmospheric studies to continue to enhance tornado outlooks and projections for our country. New research accepted for publication, funded by the MAPP Program, shows that different phases of the Madden-Julian Oscillation’s (MJO) — an eastward moving tropical rainfall pattern — global trek can produce more or less favorable conditions for U.S. tornado activity.

The South Asian Summer Monsoon: What Our Climate Projections Tell Us 23 March 2020

The South Asian Summer Monsoon: What Our Climate Projections Tell Us

A paper just published in Science Advances, funded by the MAPP Program, identified a key climate pattern responsible, in part, for large uncertainties in projections of the South Asian summer monsoon (SASM). The SASM is the strongest component of the global monsoon system and contributes about 80% of South Asia’s annual rainfall and provides the water supply for more than a billion people.

A shift in ENSO is causing worse prediction skill 20 March 2020

A shift in ENSO is causing worse prediction skill

Despite major progress in monitoring and understanding the El Nino-Southern Oscillation (ENSO), an alternating climate pattern of abnormally warm and cool ocean temperatures across the tropical Pacific, scientists’ ability to predict it has not shown steady improvement over the past few decades. Helping to solve this mystery, a new review article funded by the MAPP Program found that a shift in ENSO properties around 1999/2000 may account for the lower prediction skill.

New MAPP Research evaluates method to improve snow depth and snow cover estimations 24 February 2020

New MAPP Research evaluates method to improve snow depth and snow cover estimations

New research evaluates method to improve snow depth and snow cover estimations: The potential improvements could help water managers better understand and anticipate changes in the snow reservoir
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Americans’ health, security and economic wellbeing are tied to climate and weather. Every day, we see communities grappling with environmental challenges due to unusual or extreme events related to climate and weather.