NASA warns moon 'wobble' could lead to more flooding, more often

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CNET 15 July, 2021 - 12:56am 33 views

Why does the moon wobble?

The reason is that rising sea levels will coincide with something called a “wobble” in the moon's orbit. ... “So half of the 18.6-year lunar cycle counteracts the effect of sea level rise on high tides, and the other half increases the effect.” Santa Rosa Press DemocratNASA: Moon ‘wobble’ will cause surge in coastal flooding in the 2030s

Does the moon wobble?

The increase in flooding is caused in part by the moon's “wobble.” As it orbits Earth, the satellite's angle relative to the equator changes over time. This phenomenon — spanning an 18.6-year period — influences how tides ebb and flow. The Washington PostMoon ‘wobble’ and climate change could mean ‘double whammy’ of flooding in 2030s, NASA warns

Why is the moon wobbling?

The moon is about to "wobble" The moon's orbit is due for its regular "wobble." That is entirely natural, NASA says, and it has been recorded as far back as 1728. Half of the moon's 18.6-year cycle creates lower high tides and higher low tides; the other creates higher high tides and even lower low tides. NPRNASA Predicts 2030s Record Flooding Due To Moon And Climate Change

'Wobble' in Moon's Orbit May Result in Record Flooding on Earth

Complex 15 July, 2021 - 06:04am

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According to a newly published report, researchers at NASA and the University of Hawaii predict a “wobble” in the moon’s orbit, combined with rising sea levels due to climate change, will cause record flooding in the country’s coastal cities. NASA explains that these floods will likely occur in clusters that last a month or longer, meaning their impact will be much more severe than than usual, depending on the positions of the sun, moon, and earth.

“When the Moon and Earth line up in specific ways with each other and the Sun, the resulting gravitational pull and the ocean’s corresponding response may leave city dwellers coping with floods every day or two,” read the study, published in the journal Nature Climate Change.

The National Oceanic and Atmospheric Administration (NOAA) reported 600 “high-tide” floods occurred in 2019; that number is expected to significantly increase in the 2030s, during the tide-amplifying portion of the lunar cycle. According to NASA, the “wobble” was first reported in 1728 and takes about 18.6 years to complete. Although the change in orbit isn’t new, it can exacerbate the dangers posed by global warming—specifically rising sea levels.

“It’s the accumulated effect over time that will have an impact ...” said the study’s lead author Phil Thompson, an assistant professor at the University of Hawaii. Thompson acknowledged that floods involved a small amount of water when compared to natural disasters like hurricanes, but noted that the frequency of these floods could cripple U.S. infrastructure. “If it floods 10 or 15 times a month, a business can’t keep operating with its parking lot under water. People lose their jobs because they can’t get to work. Seeping cesspools become a public health issue.”

NASA researchers say they hope their findings will motivate state and local leaders to take action and dedicate more resources to flood preparation. 

“From a planning perspective, it’s important to know when we’ll see an increase,” said the study’s co-author Ben Hamlington of NASA’s Jet Propulsion Laboratory in Southern California. “Understanding that all your events are clustered in a particular month, or you might have more severe flooding in the second half of a year than the first – that’s useful information.”

Will there be more floods? Will climate change create more flooding?

Deseret News 15 July, 2021 - 06:04am

Expect to see a lot more flooding if you’re around in 2030

A new study from NASA has a pretty stark finding — major floods will become more common in occurrence in the United States by the 2030s because of a change in the moon’s orbit.

The study — published in the journal Nature Climate Change — said the flood days won’t come at a certain time of year. In fact, they “are likely to cluster together over the span of just a few months,” according to Live Science.

The study suggests that there will be a “wobble” in the moon’s orbit, which will cause the rise in flooding.

More floods mean there will be changes to the livelihoods of many Americans, especially if city organizers don’t start planning for them now, according to the study. Specifics weren’t mentioned in the study, though.

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