You might also like...
Check out some other posts from Florida Tech
By Steven Lazarus Like many coastal regions, Florida’s Space Coast faces significant climate resilience challenges and risks.
According to the National Oceanic and Atmospheric Administration (NOAA), Florida has over 8,000 miles of shoreline, more than any other state in the contiguous U.S. In addition, the 2020 census indicates that that there are 21 million Florida residents, 75-80% of which live in coastal counties. This makes our state particularly vulnerable to rising sea levels, which are directly responsible for a host of coastal impacts, such as saltwater intrusion, sunny-day (high-tide) flooding, worsening surge, etc.
There is growing evidence that storms are becoming wetter as the atmosphere warms— increasing the threat associated with compound flooding, which involves the combined effects of storm surge, rainfall, tides and river flow.
Inland flooding events are also increasing due to overdevelopment, heavy precipitation and aging and/or inadequate infrastructure. The economic ramifications of these problems are quite evident, as area residents are confronted with the rising costs of their homeowners and flood insurance policies.
As the principal investigator on a recently funded Department of Energy grant, Space Coast ReSCUE (Resilience Solutions for Climate, Urbanization, and Environment), I am working with Argonne National Laboratory, Florida Tech colleagues, community organizations and local government to improve our climate resilience in East Central Florida.
It is remarkable that, despite its importance for risk management, urban planning and evaluating the environmental impacts of runoff, official data regarding local flooding is virtually nonexistent!
Working alongside a local nonprofit, we have installed 10 automated weather stations and manual rain gauges in what was previously a “data desert” east of the Florida Tech campus: one at Stone Magnet Middle School and others at local homes.
“We think that a ‘best methods’ approach is proactive, informed and cost-effective. The foundation of good decision-making, assessment and planning is built on data (model and observations), which are critical to adequately addressing the impact of climate on our communities.” – steven lazarus, meteorology professor, ocean engineering and marine sciences Data from these stations are available, in real-time, from two national networks: CoCoRaHS and Weather Underground. The citizen science initiative involving the rain gauge measurements is designed to document flooding in a neighborhood with limited resources.
In addition to helping residents make informed choices, these data will also provide a means by which we can evaluate our flood models that will be used to create highly detailed flood maps of the neighborhood.
We are working with two historic extreme-precipitation events: Hurricane Irma (2017) and Tropical Storm Fay (2008)—both of which produced excessive flooding in the area. What might the local flooding look like, in the future, as storms become wetter? To find out, we plan to simulate these two storms in both present-day and future climate conditions.
What will heat stress, a combination of temperature and humidity, feel like in the future? What impact will this have on energy consumption?
The station data will also be used develop and test building energy-efficiency tools designed to help the community identify affordable ways to reduce energy consumption, as well as to produce high-precision urban heat island (heat stress) maps that account for the impact of individual buildings. The heat island and building energy modeling will be complemented by a drone equipped with an infrared camera, which will provide an observation baseline.
We think that a “best methods” approach is proactive, informed and cost-effective. The foundation of good decision-making, assessment and planning is built on data (model and observations), which are critical to adequately addressing the impact of climate on our communities.
Florida Tech astrophysicist Howard Chen is offering new insights to help aid NASA’s search for life beyond Earth. His latest theoretical work investigates the TRAPPIST-1 planetary system, one of the most widely studied exoplanetary systems in the galaxy. It has captured scientists’ attention for its potential to host water, and thus possibly life, on its planets. Now, he’s offering an explanation for why telescopes have yet to find definitive signs of either.
The paper “Born Dry or Born Wet? A Palette of Water Growth Histories in TRAPPIST-1 Analogs and Compact Planetary Systems” was authored by Chen, an assistant professor of space sciences, and researchers from NASA, Johns Hopkins University and Harvard University, was published in The Astrophysical Journal Letters in September. It explores the likelihood that TRAPPIST-1’s three innermost exoplanets contained no water when they formed, despite existing in a zone where water is viable.
TRAPPIST-1 is a red dwarf star located about 40 light-years away from us. (One light year is about 6 trillion miles.) It is thought to be about 7.6 billion years old, or 3 billion years older than our Sun.
Astronomers are captivated by the TRAPPIST-1 system because its seven known planets are rocky and Earth-like. They also fall within the star’s habitable zone: the distance range from a star at which temperatures are not too hot or cold to support liquid water.
Researchers are searching for any evidence of water on these planets, but have yet to detect anything. Some think a lack of gas in the atmosphere is disrupting the light needed to pick up detailed visuals. Others predict water could have escaped the planets’ atmospheres throughout their evolution.
Chen and his team, however, decided to research a different theory: that there was no water to begin with because there was no gas to contain it. He would test it not from an observational perspective, but with mathematical modeling of the planets’ initial formation.
“You have astronomers who are using telescopes to see what’s out there. I come from a different perspective,” Chen said. “I’m both trying to explain what we’re seeing while trying to make predictions about what we can’t.” The researchers created models that examined the composition and growth of these planets starting when they were as small as one kilometer wide. They simulated how material aggregated during collisions with other celestial objects until they reached their final planetary formations.
There are several key factors in collision events that heavily influence a planet’s final composition. Chen’s models incorporated impact delivery, which is the transfer of materials like water and gases during a celestial collision; impact erosion, which refers to the removal of materials in a planet’s atmosphere due to impact; and mantle-atmosphere exchange, which is the transfer of water and gases between a planet’s atmosphere and mantle to maintain its conditions.
The team ran hundreds of collision simulations, which returned thousands of different possibilities for how TRAPPIST-1’s planets might have formed. They varied several components, such as the amount of water available to the system, the profile of the initial planet formation environment, the planets’ density profiles and the initial system conditions. For the inner worlds, specifically the first three planets, most of the simulations came back dry.
“Whatever we did, we couldn’t get much water in these inner planets,” Chen said. He believes that the main reason the planets couldn’t acquire water is due to the nature of the collision events. Compact planet collisions are higher velocity, so they are more aggressive and energetic, Chen said. This means that instead of acquiring material for a gaseous atmosphere, planets’ atmospheres were completely cleared out by the power of the collisions. With no gas in the atmosphere to contain water, it’s possible that any previously existing water escaped back into space during these collision events.
Understanding a planet’s earliest characteristics, its water, air and carbon content, builds the foundation for how they evolve. That way, when researchers identify a planet that seems viable for life at the surface level, they can use Chen’s model to simulate what these distant worlds might be like on the inside, on the surface and in the air.
Combining the theoretical context of a planet’s formation with the state in which it was discovered can help researchers – and NASA – make informed, efficient decisions on which planets are worth investigating and when it’s time to move on to the next.
If you're interested in connecting with Howard Chen about the search for life beyond Earth, let us help. Contact Adam Lowenstein, Assistant Vice President for External Affairs at Florida Institute of Technology, at adam@fit.edu to arrange an interview today.
There's a mystery brewing in the Pacific Ocean, and it's worrying marine researchers. Every winter, between January and April, a blast of cold water surges from the bottom to the top of the Gulf of Panama. The cold surge helps marine life survive heat waves. However, this year, there was no blast.
Researchers are concerned about the disappearance and believe it could be a sign of a larger problem. The phenomenon has garnered the attention of reporters from outlets like the New York Times, as well as others from across the nation. They're looking for answers.
To help find those answers, experts such as the Florida Institute of Technology's Richard Aronson are available to help explain what's happening deep beneath the surface.
Each year between January and April, a blob of cold water rises from the depths of the Gulf of Panama to the surface, playing an essential role in supporting marine life in the region. But this year, it never arrived. “It came as a surprise,” said Ralf Schiebel, a paleoceanographer at the Max Planck Institute for Chemistry who studies the region. “We’ve never seen something like this before.” Richard Aronson, a professor of marine sciences at the Florida Institute of Technology, has studied this particular patch of ocean off the coast of Panama for decades. The cold blob gives those corals a better chance of surviving marine heat waves than other areas, he said. Heat stress has plunged the world’s coral reefs into ongoing mass bleaching that began in January 2023. About 85 percent of the world’s coral reef areas have been affected, according to the National Oceanic and Atmospheric Administration. “The climate is warming, that’s putting coral reefs at risk,” said Dr. Aronson, who was not involved with the paper. While corals can adapt to changes in temperature, the climate is changing too quickly for them to keep up in the long run, he said. Sea surface temperatures have risen by more than 1 degree Celsius since humans began burning fossil fuels during the Industrial Revolution, breaking records in 2024 and 2023. It’s too soon to tell if the blob will return in future years. But if it disappears repeatedly, then “it’s cause for grave concern,” Dr. Aronson said. If you’re covering this topic or looking to speak with an expert about climate change and its impact on our oceans, Richard Aronson is available for interviews. Simply click the icon below to connect with him today.
