Category: Oceans Influence on Climate & Weather

Study Finds that a Larger than Normal Atlantic Warm Pool Can Lead to an Increase in US Heat Waves

Heat extremes are the number one weather-related cause of death in the United States, prompting the climate community to study the driving forces behind these extreme events to improve their prediction. A new study published in the Journal of Geophysical Research finds an increase in summertime heat wave occurrence over the US Great Plains is linked to a larger than normal tropical Atlantic warm pool. 

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NOAA and Saildrone Launch Seven Hurricane-Tracking Surface Drones

In partnership with NOAA, Saildrone Inc. is deploying seven ocean drones to collect data from hurricanes during the 2022 hurricane season with the goal of improving hurricane forecasting. For the first year, two saildrones will track hurricanes in the Gulf of Mexico.

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GOES Satellite Image of Hurricane Dorian from September 2nd, 2019. Photo Credit: GOES.

Scientists Observe Rainfall Under Tropical Cyclones Reduces Sea Surface Cooling

Tropical cyclones intensify by extracting heat energy from the ocean surface, making the sea surface temperature under storms crucial for storm development. A recent study by researchers at the Pacific Northwest National Laboratory and NOAA’s Atlantic Oceanographic and Meteorological Laboratory found that large amounts of rain under tropical cyclones can reduce the sea surface cooling induced by them. 

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NOAA AOML Scientists Project Future Changes in ENSO Variability

In a new study published in Nature Communications, scientists at NOAA’s Atlantic Oceanographic & Meteorological Laboratory (AOML) investigate the projected changes in the seasonal evolution of El Niño – Southern Oscillation (ENSO) in the 21st century under the influence of increasing greenhouse gases. The study found that global climate impacts on temperature and precipitation are projected to become more significant and persistent, due to the larger amplitude and extended persistence of El Niño in the second half of the 21st Century (2051-2100).

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New Research Showing Link between Florida Current and Pacific Ocean could Improve Sea Level, Climate Prediction

A recent study by scientists at NOAA’s Atlantic Oceanographic and Meteorological Laboratory (AOML) is the first to demonstrate that El Niño-Southern Oscillation (ENSO) temperature variations in the equatorial Pacific Ocean can help predict Florida Current transport anomalies three months later. The connection between Florida Current transport and ENSO is through ENSO’s impact on sea level on the eastern side of the Florida Straits, which plays a dominant role in the Florida Current transport variability on interannual time scales.

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A schematic of the major currents feeding the North Atlantic comprising the Northern limb of the AMOC.

Study Explores the Relationship of Anthropogenic Carbon and Ocean Circulation

In a recently published study in Nature Geoscience, scientists at AOML and international partners quantified the strength and variability of anthropogenic (man-made) carbon (Canth) transport in the North Atlantic Ocean. The study found that buildup of Canth in the North Atlantic is sensitive to the Atlantic Meridional Overturning Circulation (AMOC) strength and to Canth uptake at the ocean’s surface.

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Ocean Drone Sails into Category 4 Hurricane Sam

For the first time ever, Saildrone Inc. and NOAA have used an uncrewed surface vehicle to collect oceanic and atmospheric data from inside the eye of a hurricane. On September 30th, 2021 saildrone 1045 travelled directly into Category 4 Hurricane Sam.

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