A Tale of Two Winters: Study Provides Insights Into Changes in MJO Propagation Speed 24 February 2021

A Tale of Two Winters: Study Provides Insights Into Changes in MJO Propagation Speed

This study analyzes the year-to-year variability of the MJO propagation speed (how fast it moves across the Indo-Pacific region) by analyzing a century-long historical dataset, providing further insights into the fundamental physics regulating MJO propagation. 

Land Breeze Leads to Nighttime Rainfall Events Off the West Coast of Sumatra 24 February 2021

Land Breeze Leads to Nighttime Rainfall Events Off the West Coast of Sumatra

A new study investigates the role of land breeze and gravity waves in nighttime rainfall migration off the west coast of Sumatra, with a specific focus on the properties (frequency, speed, intraseasonal and seasonal variations) of this offshore rainfall.

Research Highlights Role of Coastal Ocean in Influencing Atmospheric River Intensity 24 February 2021

Research Highlights Role of Coastal Ocean in Influencing Atmospheric River Intensity

NOAA buoy observations collectively enabled a systemic synoptic-scale analysis of a 39-year record of atmospheric rivers, offering a unique view of coastal air-sea processes at the time of atmospheric river landfall.

Distinguishing Between Low and High Climate Sensitivity in Climate Models 16 February 2021

Distinguishing Between Low and High Climate Sensitivity in Climate Models

New research distinguishes between climate models with low and high climate sensitivity due to aerosol-cloud interactions, helping climate scientists to better understand and reduce uncertainty in future climate projections. 

Emissions of a Banned Ozone-depleting Gas are Back on the Decline 9 February 2021

Emissions of a Banned Ozone-depleting Gas are Back on the Decline

Discovery in 2018 posed first real test of the Montreal Protocol

New analyses of global air measurements show that five years after an unexpected spike in emissions of the banned ozone-depleting chemical chlorofluorocarbon CFC-11, they dropped sharply between 2018 and 2019.
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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.