Are Sea Surface Temperature Indices the Right Proxy for 100-year Trends in AMOC? 17 November 2020

Are Sea Surface Temperature Indices the Right Proxy for 100-year Trends in AMOC?

Research supported by the Climate Variability & Predictability program suggests that a common proxy for understanding AMOC trends, sea surface temperature indices, are not the best choice at the centennial scale, opening the door for new indices to be developed.

Using Aircraft Measurements to Investigate Primary vs. Secondary Sources of Organic Aerosols in Wildfire Plumes 17 November 2020

Using Aircraft Measurements to Investigate Primary vs. Secondary Sources of Organic Aerosols in Wildfire Plumes

This study, funded in part by Atmospheric Chemistry, Carbon Cycle, & Climate (AC4), investigates the relationship between primary and secondary sources of organic aerosols over the lifetime of a wildfire plume, finding at least half of the secondary sources are the result of evaporation of the primary sources. 

Quantifying the External vs. Internal Mechanisms Behind the Atlantic Multidecadal Variability 11 November 2020

Quantifying the External vs. Internal Mechanisms Behind the Atlantic Multidecadal Variability

Climate Observations and Monitoring (COM)-supported research provides evidence to reconcile a long-standing debate on identifying the mechanisms underlying the Atlantic Multidecadal Variability. 

Marine Sulfur Aerosols Increase in the Alaskan Arctic 10 November 2020

Marine Sulfur Aerosols Increase in the Alaskan Arctic

Researchers supported in part by CPO’s Atmospheric Chemistry, Carbon Cycle, & Climate (AC4) program have collected new aerosol data at two coastal sites on the North Slope of Alaska. Their work, combined with past data from NOAA, reveals that sulfur aerosol concentrations continue to increase at more than 2% per year.

Two Studies Illustrate Data-driven Understanding of Madden-Julian Oscillation (MJO) 10 November 2020

Two Studies Illustrate Data-driven Understanding of Madden-Julian Oscillation (MJO)

Two new studies supported by the Climate Variability & Predictability (CVP) program offer data-driven insights into the Madden-Julian Oscillation (MJO), the dominant mode of tropical intraseasonal variability.

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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.