by New Orleans – as Atlantic Hurricane season Is in progressA new study published on Friday by researchers at Tulane University Hurricane Katrina.
The study showed that the city’s concrete flood walls decrease faster than the sea level and the ability to reduce storm areas in some parts of the city.
“There is certainly a potential in the future if they continue to impair our protection of the flood protection system,” Tulane Professor Mead Allison, co-author of the study, told CBS News.
This summer marked for 20 years since Katrina landed on the golf coast and more than 1,300 people dead And to displace more than a million people in the region.
After the destructive storm, 15 billion US dollars were spent on strengthening a tax system that keeps water away. New Orleans, a large part of which are below sea level, is based on this complex system of dike, pumps and drainage channels.
The study published in the Journal Science Advances used satellite radard data to pursue shifts in the ground height between 2002 and 2020 to the Greater New Orleans. While most of the city remains stable, some neighborhoods, wetlands and even sections of the region after the Katrina flood system, in their annual losses, are sinked into the areas of Katrina with one year with one year with one year with one year with one year with one year with one year with one year with one year with one year with one year. yearly.
“In a city like New Orleans, in which a large part of the country is already close to the sea level Department of River-Castal Science and EngineeringNow in Tre-Altamira-in an explanation.
“These results are a wake -up call,” said Allison. “We need ongoing surveillance and maintenance to ensure that our flood defense does not lose your protection among us.”
If the trends continue and the infrastructure is deactivated, the study found that wetlands east of the city could transform into open water within the next 10 years when trends are continued – and critical storm flood buffers on the coast of Louisiana effectively remove.
The study also identified some possible causes of the falling hotspots. It was found that land pockets in industrial locations, the international airport Louis Armstrong New Orleans and recent residential developments sink – areas in which soil compression and groundwater deprivation are likely to be retained.
Researchers also said the results underline some potential solutions to better protect New Orleans and other coastal communities around the world, including more frequent improvements to the flood protection system and satellite monitoring.
Some residents who live in the Michoud district on the east side of the city – one of the areas identified in the study that have dropped faster than others – are concerned that maintenance is not prioritized. The Synthia Viltus, based in Michoud, pointed out that potholes and other smaller infrastructure problems in their neighborhood have been unsolved for months.
“I have no confidence in the federal government to keep the taxes up to date,” said Viltus.
The study found a positive – some areas in which industrial activities had been hired, the country had actually prompted to raise again.
The authors of the study also hope that their work will help to guide other coastal cities who may be with similar challenges as in New Orleans.
“This research shows that land movement is not uniform and the understanding of these patterns is crucial for the protection of life and property in a city in which centimeters are really important,” said Fiaschi in the explanation. “However, it is crucial to remember that our results still require careful floor cups. This applies in particular to critical areas such as the flood walls in which the review on site was not possible during this project.”
When reaching CBS News, the US Army Corps of Engineers said that the taxes were designed so that they should take at least another 25 years. USACE added that it was already in the update of the taxes so that they can take another 50 years.
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