By: Cassidy Delamarter, University Communications and Marketing
A team from the 麻豆视频 is on the ground in Hawaii studying , the largest active volcano in the world, to improve efforts that can help protect residents from lava flow. While slow-moving, lava averages 2,200 degrees Fahrenheit and destroys everything in its path.
They鈥檙e collecting data that will be used to create models that can help improve lava flow forecasting tools, such as 鈥� a simulation engine that forecasts inundation areas of lava flow, created by USF geosciences Professor Chuck Connor. Tools, such as MOLASSES, are useful in determining how hazards impact populations.
Connor says using the radar to gather data is essential in understanding volcano topography and improving the lava flow models.
鈥淲e want to make hazard maps that help people understand where they live and what the risks are,鈥� Connor said. 鈥淲e can鈥檛 stop a volcano from erupting, but we can give people warning about the lava flow.鈥�
Shortly after Mauna Loa鈥檚 eruption in late November 鈥� the first since 1984 鈥� USF geosciences Professor Tim Dixon sent graduate students, Taha Chorsi and Mahsa Afra, to Hawaii with a Terrestrial Radar Interferometer, a rare, ground-based instrument that measures where the landscape is changing and how quickly those changes are occurring.
Chorsi and Afra delivered the radar to USF alumna , a National Science Foundation post-doctoral research fellow at the Hawaiian Volcano Observatory.
With this radar, the USF trio were able to capture the thickening of Mauna Loa鈥檚 lava flows. The novelty of the ground-based instrument is its ability to measure the lava鈥檚 surface and create a three-dimensional map within a span of minutes.
鈥淎 lot of volcano science happens in hostile terrains,鈥� Gallant said. 鈥淭his radar is a particularly powerful instrument because it can see through moisture, and now, we can definitely say it would be well-suited in areas where visibility is poor and to immediately help hazard response.鈥�
The team will review this data over the next several months to determine where the Mauna Loa lava flow was moving and the velocities of those movements. The data can be used to better understand how lava flows move and advance, which in turn can be used by scientists to improve tools used to forecast lava flow hazards through models.
Dixon has had great success using the radar to monitor Earth movements in glaciers, landslides, earthquakes and volcanoes. Many of his students, including Chorsi and Afra, have worked alongside him over the years to learn the radar and develop a user manual. 鈥淭here鈥檚 probably only a hundred people in the world who can successfully use this instrument,鈥� Dixon said.
鈥淭his instrument is not widely available, but fortunately USF has one,鈥� Chorsi said. 鈥淚 am very thankful that USF and Tim gave me this opportunity.鈥�
鈥�USF鈥檚 Natural Sciences grad programs really do cultivate the next generation of scientists,鈥� Connor said. 鈥淚鈥檝e been around long enough to actually see it happen 鈥� watching our students advance science is mind blowing.鈥�