Jul 13, 2021 11:35:00

NASA announces that floods may surge in the 2030s due to 'wobble' in the lunar orbit

NASA has announced that floods caused by storm surges will surge in the United States

due to tides caused by the cyclical changes in the orbit of the moon. Past research has shown that the waves are getting higher and higher due to the effects of global warming, and the synergistic effect of these two phenomena will cause floods in cities along the American coast between 2030 and 2040. Researchers warn that it will.

Rapid increases and extreme months in projections of United States high-tide flooding | Nature Climate Change
https://www.nature.com/articles/s41558-021-01077-8

Study Projects a Surge in Coastal Flooding, Starting in 2030s | NASA
https://www.nasa.gov/feature/jpl/study-projects-a-surge-in-coastal-flooding-starting-in-2030s

A'wobble' in the moon's orbit could result in record flooding in the 2030s, new study finds | Live Science

https://www.livescience.com/high-tide-flooding-climate-change-2030

Climate-driven coastal flooding in the US likely to get worse suddenly | Ars Technica
https://arstechnica.com/science/2021/06/climate-driven-coastal-flooding-in-the-us-likely-to-get-worse-suddenly/

Floods caused by storm surges, while is not as dramatic as compared to the flood to bring such as hurricanes, from the fact that a significant impact on people's lives, causing flooding and road flooding and sewer, in the United States ' of nuisance flood ( It is called ' nuisance floods)'. According to a survey by the US National Oceanic and Atmospheric Administration (NOAA), the total number of 'floods of troublesome people' that occurred along the coast of the United States in 2019 reached more than 600. Floods caused by storm surges are increasing year by year due to rising sea levels caused by climate change, but NASA and the University of Hawaii have said that changes in the lunar orbit will amplify the ebb and flow of the tide, causing further floods after the 2030s. It was revealed by a study published in June 2021.

The author of the paper, Phil Thompson, an assistant professor at the University of Hawaii, said, 'In some areas, floods occur every one or two days. If floods occur 10 or 15 times a month, economic activity. Some people will lose their jobs due to the impact on their illnesses, and the flooding of sewage reservoirs will cause public health problems. '

As mentioned above, one of the factors that increase floods is the rise in sea level due to global warming. According to NOAA, the world's average sea level has risen by about 20 to 25 centimeters since 1880, and it is estimated that sea level will rise by 0.3 to 2.5 meters by 2100, depending on future greenhouse gas reductions. .. Thompson and colleagues have now added astronomical impacts to data from a total of 89 tide gauges across the United States, increasing floods due to gravitational fluctuations caused by changes in the lunar orbit. I found out that it accelerates.

Since the Earth's moon, the moon, revolves at an angle deviated from the equatorial plane, the

intersection of the equatorial plane and the orbital plane of the moon also moves. This intersection fluctuates every 18.6 years, and the ebb and flow of the tide also changes under the influence. Specifically, the ebb and flow is suppressed in half of the 18.6 year cycle, the sea level at high tide is low, and conversely the sea level at low tide is higher than normal. On the other hand, in the other half, the work of ebb and flow is amplified, so if the floods that occur between 2030 and 2040 will increase rapidly in almost all coastal areas of the United States except Alaska, Hawaii and Guam. , The research team says.

Ben Hamlington of NASA's Jet Propulsion Laboratory said, 'This study shows that the factors that cause floods are concentrated in a specific period, and that floods are more likely to become more serious in the second half of the year than in the first half of the year. That's what I learned. These findings are important in planning for flood preparedness, 'he emphasized the need for flood control.