Measuring the size of a Tsunami

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How big was the size of the tsunami that hit Tonga last year? A new study led by scientists at the University of Miami and the Khaled bin Sultan Living Oceans Foundation measured the size of the Tongan tsunami and found that it was similar in size to the one caused by the eruption of Krakatoa in 1883.

The 2022 eruption of a submarine volcano in Tonga was more powerful than the largest U.S. nuclear explosion, according to a new study led by scientists at the University of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science and the Khaled bin Sultan Living Oceans Foundation.  

The 15-megaton volcanic explosion from Hunga Tonga-Hunga Ha’apai, one of the largest natural explosions in more than a century, generated a mega-tsunami with waves up to 45-meters high (148 feet) along the coast of Tonga’s Tofua Island and waves up to 17 meters (56 feet) on Tongatapu, the country’s most populated island.

In a new analysis in Science Advances, researchers used a combination of before-and-after satellite imagery, drone mapping, field observations collected by scientists at The University of Auckland, and high-resolution bathymetric maps from the Khaled bin Sultan Living Oceans Foundation’s Global Reef Expedition, to produce a tsunami simulation of the Tongan Archipelago. The results showed how the complex shallow bathymetry in the region acted as a low-velocity wave trap, capturing a more than hour-long tsunami with waves up to 85 meters (279 feet) high one minute after the initial explosion.

Using TV & Films to Engage Students in Learning

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When I reminisce on my childhood, I often connect certain memories and educational experiences with TV shows and movies I watched. Being interested in nature at a young age, especially marine biology, there were flicks that inspired me and deepened …

Together Again: The Return of B.A.M. and J.A.M.I.N.

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The chilly winter season doesn’t seem so dreary now that I’m returning, not only to Jamaica to implement the second phase of our Jamaica Awareness of Mangroves in Nature (J.A.M.I.N.) program, but I’m also getting the Bahamas Awareness of Mangroves (B.A.M.) program operational again …

No More Disappearing Acts

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Throughout our international student art contest called the Science Without Borders® Challenge, I have the pleasure of communicating with participants, teachers, and parents from all around the world. Numerous individuals express gratitude for the contest and share how it has increased ocean …

Announcing the 2023 Science Without Borders® Challenge Semi-Finalists – Ages 15-19

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We recently unveiled the semi-finalists of the 2023 Science Without Borders® Challenge for students participating in the 11-14 year-old category. Today, we are thrilled to announce the semi-finalists for the 15-19 year-old category. The theme for this year’s international art contest was “The …

ANNOUNCING 2023 SCIENCE WITHOUT BORDERS® CHALLENGE SEMI-FINALISTS – AGES 11-14

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Thank you to everyone who applied to our 2023 Science Without Borders® Challenge! We are captivated and inspired with the artwork that we received for this year’s contest, “The Sixth Extinction.” The students’ artwork drew attention to a wide range …

Little Creatures with a Big Message: An Educator’s Guide

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Lately, you have been hearing from our partners at the University of Miami (UM) about their experiences processing and picking tiny foraminifera from sand samples that we collected on the Global Reef Expedition (GRE). As our colleagues continue to process the large quantity (2,500) of sand samples, we are creating an educator’s guide called “Little Creatures with a Big Message.”

Together, the University of Miami and the Khaled bin Sultan Living Oceans Foundation received a three-year grant from the National Science Foundation (NSF) to utilize microscopic organisms, called foraminifera (‘forams’ for short), to assess the state of coral reefs over the past 1,000 years, and potentially create new metrics that can be used to assess reef health.

NSF recognizes that a critical component to any research project is how it can benefit society. This is what NSF defines as the “Broader Impacts.” As a part of this grant, we will deliver on the broader impacts portion of the grant to educate and communicate this science to others. One of the ways will do this is by creating curriculum that improves STEM (science, technology, engineering, and math) education and increases participation of minorities in STEM.

Measuring reef health from space

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With compelling evidence that we have lost half of the world’s tropical coral reefs over the last few decades, there is an urgent need to understand their overall health. Without this basic information to use as a baseline, it is near impossible to mount a response to the so-called global reef crisis. The most straightforward method we have for monitoring reefs is conducting SCUBA diver surveys. However, this type of field work is logistically and financially challenging to execute on large scales, so developing a new method to monitor reefs remotely is key.

In attempt to find a solution, Anna Bakker combines the fields of remote sensing, computer science, and ecology to measure reef health from space. Recently, Anna published a paper in Coral Reefs, which utilized the Living Oceans Foundation’s Global Reef Expedition field dataset to build a model that can predict coral cover and other metrics of coral reef health using open-source satellite data.

Connecting Students to Nature

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The sun is blazing intensely in a cloudless sky, and the lack of a breeze makes the sulfur, rotten egg-like smell even more intense. It feels like 95°F (35°C) and I am sweating profusely as I trudge through the mangroves, one of my favorite marine ecosystems. It feels like home to me.

After two and a half years of putting the J.A.M.I.N. program on hold, I am quickly reminded how much I missed not only teaching and interacting with students face-to-face, but also being in the mangroves. The same feelings happen to me every time I venture into this amazing ecosystem: feelings of curiosity, awe, and respect, mixed with a sense of calm tranquility. And it is these same kinds of feelings we hope to foster in our students while they participate in our program…