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Sea Level Rise Pt. 2

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Re: Sea Level Rise Pt. 2

Unread postby dohboi » Fri 26 May 2017, 09:08:26

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Re: Sea Level Rise Pt. 2

Unread postby dohboi » Mon 29 May 2017, 15:05:51

At least for now, global sea level rise continues it's multi decade pattern of reverting to the trend of 3+ mm of rise per year.

https://www.aviso.altimetry.fr/en/data/ ... level.html

The little plateau in the slr graph over the last year or so must have something to do with El Nino, though I can't quite figure how or what. Any ideas out there?
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Re: Sea Level Rise Pt. 2

Unread postby Subjectivist » Mon 29 May 2017, 16:20:08

dohboi wrote:At least for now, global sea level rise continues it's multi decade pattern of reverting to the trend of 3+ mm of rise per year.

https://www.aviso.altimetry.fr/en/data/ ... level.html

The little plateau in the slr graph over the last year or so must have something to do with El Nino, though I can't quite figure how or what. Any ideas out there?


When El Nino caused a lot of rain and snow far inland in 1997-98 it took three years for all that moisture to make its way to the sea so there was a pause IIRC.
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Re: Sea Level Rise Pt. 2

Unread postby dohboi » Tue 30 May 2017, 07:32:56

Thanks, sub. That occurred to me just after I wrote it, but I wondered if anyone else would see it.

I guess all that extra sea surface warmth really kicks the hydrological cycle into overdrive!

I note that the extra water vapor in the atmosphere in the mean time (before it rains out) is a (mostly) positive feedback that makes el nino years even hotter than they would be without that feedback.
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Re: Sea Level Rise Pt. 2

Unread postby Azothius » Tue 30 May 2017, 14:10:23

The Ghost of Climate-Change Future
As record-breaking high tides overwhelm Hawaii, people are getting a preview of what life will be like in the decades to come.

https://www.theatlantic.com/science/archive/2017/05/the-ghost-of-climate-change-future/528471/

The water is everywhere.

For the second time in a month, Hawaii’s coastlines have been swamped by epic tides. The phenomenon, known as a king tide, is actually a convergence of a few different factors: high lunar tides, rising sea levels associated with last year’s strong El Niño and climate change, swirling pockets of ocean eddies, and a robust south swell—that is, big waves rolling onto south-facing shores.

King tides happen routinely in the Hawaiian Islands—a few times a year, usually—but this year’s batch have been particularly extreme. Data from federal tide stations around Hawaii show that water levels have been up to six inches above predicted tidal heights since early last year. In April, levels peaked at more than nine inches above predicted tides and broke the record high for any water level around Hawaii since 1905. Scientists say the record is likely to be broken again in 2017.

Several Honolulu roadways have been submerged. Beaches have been washed out. Beachfront hotels have canceled shorefront entertainment and readied generators. Property owners living near the coasts were told to move electronics and other valuables up to the second floor of their houses and park their cars elsewhere. People photographed fish swimming down the streets. And all around the islands, small mountains of sand have been deposited in parking lots and other strange places—spots the waves should never reach.

For the people of Hawaii, alarm bells are ringing. King tides like this aren’t just a historic anomaly; they’re a sign of what’s to come. “Within a few decades this will be the new normal,” said Chip Fletcher, associate dean of the School of Ocean and Earth Science and Technology at the University of Hawaiʻi, in a university statement. “Hawaii should consider this a practice run, and reevaluate policies and development practices accordingly.”
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Re: Sea Level Rise Pt. 2

Unread postby vox_mundi » Thu 17 Aug 2017, 10:51:13

A heads-up for Ibon ...

Florida Flood Risk Study Identifies Priorities for Property Buyouts

A study of flood damage in Florida by scientists at UC Santa Cruz and the Nature Conservancy proposes prioritizing property buyouts based on flood risk, ecological value, and socioeconomic conditions. Forecasters say an above-normal hurricane season is likely in the Atlantic Ocean this year, while a rising sea level is making Florida increasingly vulnerable to dangerous flooding.

The study shows the location of more than 15,000 repetitive loss properties in Florida which, collectively, filed more than 40,000 claims against the National Flood Insurance Program between 1978 and 2011 (more than 1,200 claims per year, on average). As of March 2016, the National Flood Insurance Program, which is up for reauthorization in 2017, owed the U.S. Treasury $23 billion.

"This study identified properties and surrounding land in Florida where buyouts can reduce future flood risk to socially vulnerable communities and simultaneously promote the restoration of the floodplain to a more natural condition," said lead author Juliano Calil. "We identified almost 150 properties in Miami-Dade County alone that are located in areas where these objectives are very well aligned."

Juliano Calil et al, Aligning Natural Resource Conservation, Flood Hazard Mitigation, and Social Vulnerability Remediation in Florida, Journal of Ocean and Coastal Economics (2017). DOI: 10.15351/2373-8456.1074

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https://www.researchgate.net/figure/319 ... -and-TNC's
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Re: Sea Level Rise Pt. 2

Unread postby dohboi » Sat 19 Aug 2017, 10:58:55

Nice link and article, vox, but that map seems a bit...optimistic, perhaps?

Meanwhile:
Federal Flood Insurance Rebuilds Homes Over and Over, Trapping Residents in Flood-Prone Areas

"The National Flood Insurance Program was designed to help Americans recover from flood disasters, but it can also unintentionally trap homeowners who would prefer to move somewhere safer," the NRDC said on its website. "Instead of moving out of harm’s way, many policyholders find themselves rebuilding their homes again and again."

https://weather.com/amp/science/environ ... apped.html
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Re: Sea Level Rise Pt. 2

Unread postby Zarquon » Mon 04 Sep 2017, 07:53:00

Drilling for oil, rising sea levels and the disappearing wetlands in Louisiana:

http://mondediplo.com/2015/11/11louisiana
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Re: Sea Level Rise Pt. 2

Unread postby dohboi » Tue 26 Sep 2017, 13:56:20

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Re: Sea Level Rise Pt. 2

Unread postby 35Kas » Tue 26 Sep 2017, 17:30:41

What needs to happen is that houses built on flood plains that get destroyed, and are insured under this retarded federal program, should get bought out under the terms and demolished, prohibiting re-development of such land.

Continuously wasting resources to re-build houses that get repeatedly damaged/destroyed under federal incentives is another stupid rule that must go.
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Re: Sea Level Rise Pt. 2

Unread postby Plantagenet » Tue 26 Sep 2017, 18:04:15

35Kas wrote:What needs to happen is that houses built on flood plains that get destroyed, and are insured under this retarded federal program, should get bought out under the terms and demolished, prohibiting re-development of such land.

Continuously wasting resources to re-build houses that get repeatedly damaged/destroyed under federal incentives is another stupid rule that must go.


Once a benefit is bestowed by the federal government, it cannot be taken back.

Every benefit creates a constituency that demands that its special deal not be cut.

Just add flood insurance to long list of highly inefficient government programs and subsidies along with Obamacare, biofuels, charitable deductions, state income tax write-offs, etc. etc. that can be "reformed"....which almost always means expand it and add in more money----, but will never be repealed.

Cheers!

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