Ronald H Brown on a pristine blue ocean

AEROSE

Aerosols and Ocean Science Expedition

AEROSE uncovers the far-reaching influence of Saharan dust on global climate, weather and regional atmospheric chemistry.

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Uncovering the journey and impact of Saharan dust

Pioneering research on Saharan dust across the Atlantic

AEROSE, short for Aerosols and Ocean Science Expeditions, is an internationally renowned research initiative that traces the journey of Saharan dust across the Atlantic. Since 2004, this series of trans-Atlantic field campaigns, primarily conducted aboard the National Oceanic and Atmospheric Administration (NOAA) Ship Ronald H. Brown, has expanded our understanding of how African air masses influence climate, weather patterns, and environmental health across continents.


Why Saharan dust matters

A global journey with local impacts

Saharan dust deposits nutrients in oceans and tropical land areas like the Amazon rainforest, affects weather patterns, and even influences air quality on faraway shores. The AEROSE project delves into the specifics of these impacts by collecting a vast array of data on how dust particles change as they travel. This information is essential for forecasting weather and climate and understanding environmental shifts due to dust’s interaction with atmospheric and oceanic systems.

Our research approach

Collecting and sharing the world’s most comprehensive dataset on Saharan dust

AEROSE missions bring together atmospheric and oceanographic measurements, forming the world’s most extensive dataset on the evolution of Saharan dust over the Atlantic. By capturing these details, AEROSE helps validate key satellite data and improves global climate and weather models, ensuring a more accurate picture of atmospheric processes.


A laboratory in the remote ocean

Onboard the NOAA Ship Ronald H. Brown, scientists gather high-resolution data that allow them to track dust’s "microphysical" properties—its size, shape, and interactions with other particles and elements—as it travels. This provides insight into dust’s role in global systems, from affecting storm formations to altering the Earth’s radiation balance.

We measure concentrations of aerosols and trace gases and collect atmospheric samples along with several meteorological and climate variables. We also perform laboratory analysis on the samples to complement the field observations.

One of the crucial functions that our research achieves, is satellite validation. Satellites are constantly measuring atmospheric data, but to ensure accuracy, the data must be validated. We are able to verify data in some of the most remote regions, ensuring satellite accuracy. This significantly contributes to higher resolution observations and future satellite accuracy.

A woman standing in front of a screen presenting on weather forecasts

AEROSE uncovers the far-reaching influence of Saharan dust on global climate, weather and regional atmospheric chemistry.

A field-based approach brings the lab to the Atlantic, capturing detailed, firsthand data which spans from the air-sea interface to the lower stratosphere.

Data from AEROSE refines next-generation satellites and models, enhancing global forecasting.

The AEROSE team is committed to training the next generation of maritime research and field observation scholars.

Participating in research with AEROSE is open to any ASU student and allows for an immersive experience where real research is done. Learn how to use advanced research equipment. Gain knowledge and experience. Contribute to oceanic and environmental research.

the sunsetting on the ocean in vibrant pinks, oranges, and purples

Empowering the next generation of satellite technology

Enhancing satellite accuracy with AEROSE data

AEROSE supports the validation of critical satellite systems such as NOAA’s Joint Polar Satellite System (JPSS) and the Geostationary Operational Environmental Satellite (GOES-R). By comparing AEROSE’s precise measurements with satellite readings, NOAA can refine satellite instruments to produce highly accurate environmental data for forecasting weather and monitoring climate.


Improving global weather models

The microphysical measurements from AEROSE are also crucial in calibrating NOAA's advanced models, such as the Global Forecast System (GFS). These models, which provide daily global weather forecasts, benefit from AEROSE data to better predict the influence of aerosols on atmospheric conditions.

Collaboration and support

A network of scientific partnerships

AEROSE is made possible through a network of partnerships, including support from the NOAA Educational Partnership Program, the NOAA Satellite Operations and Research Division, and collaborations with NASA and the National Weather Service. This cross-agency effort amplifies AEROSE’s impact, bringing diverse expertise together to push the boundaries of climate science.


Bridging science and policy

By providing accurate data and refining predictive models, AEROSE empowers decision-makers with insights that guide climate policy, enhance environmental monitoring, and safeguard communities affected by dust-borne pollutants

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