Sea Level

Scientists Just Documented a Massive Recent Melt Event on the Surface of Antarctica

Thu, 2017-06-15 23:26 — Kathy Gilbeaux

An iceberg lies in the Ross Sea with Mount Erebus in the background near McMurdo Station, Antarctica, in November 2016. (AFP/Getty Images)

CLICK HERE - STUDY - Nature Communications - January 2016 extensive summer melt in West Antarctica favoured by strong El Niño

washingtonpost.com - by Chris Mooney - June 15, 2017

Scientists have documented a recent, massive melt event on the surface of highly vulnerable West Antarctica that, they fear, could be a harbinger of future events as the planet continues to warm.

In the Antarctic summer of 2016, the surface of the Ross Ice Shelf, the largest floating ice platform on Earth, developed a sheet of meltwater that lasted for as long as 15 days in some places. The total area affected by melt was 300,000 square miles, or larger than the state of Texas, the scientists report.

That’s bad news because surface meltin g could work hand in hand with an already documented trend of ocean-driven melting to compromise West Antarctica, which contains over 10 feet of potential sea level rise.

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Atlantic City and Miami Beach: two takes on tackling the rising waters

Fri, 2017-03-31 16:04 — Maeryn Obley

Note: Average seasonal cycle removed from monthly mean sea level Source: National Oceanic and Atmospheric Administration | Graphic: Jan Diehm/The Guardian

IMAGE: Note: Average seasonal cycle removed from monthly mean sea level Source: National Oceanic and Atmospheric Administration | Graphic: Jan Diehm/The Guardian

theguardian.com - March 20th 2017 - Oliver Milman

The Irish Pub near Atlantic City’s famed boardwalk doesn’t have any locks on the doors as it is open 24 hours a day. So when Hurricane Sandy crunched into what was once known as the Las Vegas of the east coast in 2012, some improvisation was needed.

Regular drinkers helped slot a cork board through the frame of the door, wedging it shut and keeping out the surging seawater.

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A Bayesian Network to Predict Vulnerability to Sea-Level Rise: Data Report

Wed, 2015-08-19 18:25 — Kathy Gilbeaux

pubs.usgs.gov - by Benjamin T. Gutierrez, Nathaniel G. Plant, and E. Robert Thieler - November 2011

Abstract

During the 21st century, sea-level rise is projected to have a wide range of effects on coastal environments, development, and infrastructure. Consequently, there has been an increased focus on developing modeling or other analytical approaches to evaluate potential impacts to inform coastal management. This report provides the data that were used to develop and evaluate the performance of a Bayesian network designed to predict long-term shoreline change due to sea-level rise. The data include local rates of relative sea-level rise, wave height, tide range, geomorphic classification, coastal slope, and shoreline-change rate compiled as part of the U.S. Geological Survey Coastal Vulnerability Index for the U.S. Atlantic coast. In this project, the Bayesian network is used to define relationships among driving forces, geologic constraints, and coastal responses. Using this information, the Bayesian network is used to make probabilistic predictions of shoreline change in response to different future sea-level-rise scenarios.

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Responses to Climate Change - Planning for Changing Sea Levels

Wed, 2015-08-19 17:45 — Kathy Gilbeaux

corpsclimate.us

More than 8 million people live in areas at risk of coastal flooding. Along the U.S. Atlantic Coast alone, almost 60 percent of the land that is within a meter of sea level is planned for further development, with inadequate information on the potential rates and amount of sea level rise.

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Disastrous Sea Level Rise Is an Issue for Today's Public - Not Next Millennium's

Tue, 2015-08-04 10:49 — Kathy Gilbeaux

huffingtonpost.com - by Dr. James Hansen - July 27, 2015

. . . 2°C global warming, rather than being a safe "guardrail," is highly dangerous. . . .

. . . My conclusion, based on the total information available, is that continued high emissions would result in multi-meter sea level rise this century and lock in continued ice sheet disintegration such that building cities or rebuilding cities on coast lines would become foolish. . . .

. . . A startling conclusion of our paper is that effects of freshwater release onto the Southern Ocean and North Atlantic are already underway and 1-2 decades sooner in the real world than in the model (Fig. 2).

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CLICK HERE - Atmospheric Chemistry and Physics - Earth's energy imbalance and implications

CLICK HERE - Ice Melt, Sea Level Rise and Superstorms: Evidence from Paleoclimate Data, Climate Modeling, and Modern Observations that 2°C Global Warming is Highly Dangerous

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