Could the ocean’s tiniest currents wield the greatest influence on our planet’s climate system?
that’s the question driving new research spotlighting the work of Jinbo Wang, Associate Professor in the Department of Oceanography at Texas A&M University.His findings grace the April 17 cover of Nature, marking a major achievement for Wang, his team, and the broader scientific community. The publication highlights a milestone in a decades-long, billion-dollar international water mission, underscoring Texas A&M University’s commitment to expanding it’s role in satellite oceanography and climate studies.
Before joining Texas A&M, Wang spent over nine years at NASA’s Jet Propulsion Laboratory (JPL) in California, contributing to the foundational research that paved the way for this discovery. He collaborated with colleagues at JPL, France’s space agency, CNES (Center National d’Études Spatiales), and Caltech. The recent Nature publication builds upon the groundwork laid by these teams over the past two decades.
Ocean Eddies: Small Size, Big Impact
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Ocean eddies are essentially miniature whirlpools. Like the swirling water behind a rock in a river, ocean eddies operate similarly, but on a much grander scale and with greater elusiveness. These dynamic structures can span hundreds of kilometers, playing a crucial role in distributing heat, nutrients, and energy across the world’s oceans, which are essential for climate regulation, weather patterns, and marine ecosystems.
While larger eddies have been studied extensively, their smaller counterparts, known as submesoscale eddies, have remained largely hidden due to their difficult-to-detect nature. Ranging from a few kilometers to 100 kilometers in width, these currents have been the “missing pieces” in our understanding of ocean dynamics – until now.
A New Outlook from space
Using data from the advanced Surface Water and Ocean Topography (SWOT) satellite, Jinbo Wang and his fellow researchers at JPL, CNES, and Caltech have achieved an unprecedented view of these elusive currents.
“For the first time, we can directly observe small-scale ocean processes across the globe,” Wang said.”And it turns out they are a lot stronger than we thought.”
“For the first time, we can directly observe small-scale ocean processes across the globe,” Wang said. “And it turns out they are a lot stronger than we thought.”
This breakthrough is attributed to the SWOT satellite’s use of a Ka-band radar interferometer, which enables the measurement of minute variations in sea surface height with millimeter precision. This technology has revealed intricate swirling patterns and internal ocean waves that were previously undetectable from space at this level of detail.
“These smaller currents carry surprisingly large amounts of energy,” Wang explained. “They play a huge role in moving heat between the upper and deeper parts of the ocean and shaping how the ocean sustains its ecosystem and interacts with the atmosphere. That means they can influence marine food webs and weather patterns, like how hurricanes form and where they go, or how events like El Niño and la Niña develop.These are not just ocean features — they connect directly to the climate systems that impact all of us.”
Exceeding Expectations
The degree of success achieved was not a foregone conclusion. While SWOT fulfilled its science objectives, many scientists, including Wang, had reservations about its sensitivity in detecting subtle sea surface variations. However, the satellite’s engineering team surpassed all expectations.
“I was pessimistic about the expected outcome before the satellite launch,” Wang said. “But the satellite performed four times better than expected. That surprise is what made this breakthrough possible.”
The enhanced data revealed that submesoscale motions, especially spiral-shaped eddies and long internal solitary waves, are considerably more potent and prevalent than previously thought. These small yet impactful movements agitate the ocean, facilitating the mixing of warm and cold water and enabling the transport of energy over considerable distances, thereby influencing ocean circulation, weather patterns, and climate.The study underscores the potential of this novel data to refine scientific models for climate forecasting.
A Collaborative, International Effort
The research was facilitated by the SWOT mission, a $1 billion collaborative initiative between NASA and CNES, with contributions from the U.K. and Canadian space agencies. The mission’s development involved a large international team and over 20 years of planning, testing, and innovation.
“We’re building on work that started two decades ago,” said Dr. Shari Yvon-Lewis,head of the Texas A&M Oceanography Department. “Many people who helped design this satellite and the science have since retired.It’s a tribute to long-term vision, teamwork and dedication.”
The recruitment of Wang was a strategic move by Texas A&M to bolster its expertise in satellite oceanography, a field of paramount importance for understanding ocean physics and its role in the climate system. His experience at JPL and his leadership in international collaborations like SWOT have positioned the university as a leader in space-based ocean research.
Wang is also leading a NASA Ocean AI working group focused on how artificial intelligence and machine learning can help analyze existing and future satellite data and help future mission design. He is keen to contribute to the next big satellite mission.
For now, having his work featured on the cover of Nature is a moment to celebrate — and a reminder of how much the ocean can teach us.
“This is just the beginning,” Wang said. “We finally have the tools to see what’s been hiding in plain sight.”
By [Invented Reporter] | WASHINGTON – 2025/05/31 02:45:59
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