ocean mapping
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Interactive: The Heezen–Tharp World Ocean Floor Map
Explore Marie Tharp’s groundbreaking 1977 World Ocean Floor map and discover how it transformed our understanding of the Earth.
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From Marie Tharp to Seabed 2030: Marine Geophysicist Vicki Ferrini on Mapping the Ocean Floor
In honor of Tharp’s birthday, Ferrini discusses the geologist’s pioneering work and how it paved the way for her own collaborative efforts to map the ocean floor.
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Life Aboard the Langseth: A Q&A With Chief Science Officer Cody Bahlau
On Columbia’s global research vessel, the R/V Marcus G. Langseth, Bahlau serves as the key link between scientists, crewmembers and operations on shore.
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Leveraging the Power of Open Source Data To Map the World’s Oceans
In honor of World Oceans Day, marine geophysicist Vicki Ferrini discusses the current state of ocean research, and the important role international collaboration plays in this field.
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Google Doodle Celebrates Marie Tharp, Who Mapped the Ocean Floor
Tharp co-published the first world map of the ocean floors and helped prove the theory of continental drift.
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Marie Tharp’s Adventures in Mapping the Seafloor, In Her Own Words
The pioneering mapmaker explains how she and colleagues discovered underwater mountain ranges 40,000 miles long, and helped to prove that the continents move.
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The Magic of Exploring Under the Sea
It’s midnight on the ship, and the labs are filled with scientists busy examining samples. Two of them just got back from a trip to the seafloor, and the excitement is palpable.
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Life Aboard a Research Cruise: 24-Hour Workdays, Amazing Discoveries
When scientists say “research cruise,” they aren’t talking about sunny afternoons of shuffleboard and margaritas on deck. Life aboard a research vessel means tight spaces, few amenities, and long workdays.
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When Doing Science at Sea, Prepare to Adapt
Bridgit’s research training cruise started with a fundamental lesson of ocean science: Science at sea requires constant adaptation. Morning fog meant rewriting dive plans and reconsidering priorities.

You Asked invites you to share your most pressing questions about climate, science, and sustainability. Lamont-Doherty Earth Observatory and Columbia Climate School experts will respond with clear, evidence-based answers. Pose your questions and story ideas!
