Saturday, November 19, 2016

The Evolution and Migration of Sea Level Hinge Points - 2

Fig. 1 SLF in Alaska
The damaged global climate system is warming the globe, causing flooding, drought, melting ice sheets, melting glaciers, and enhancing fire outbreaks (Meteorologists Note Change, Drought is Killing trees, North Pole Warming, Scribbler - Crazy Cryosphere, West Antarctica Begins to Destabilize).

Fig. 2 SLF in Patagonia
Today, I want to focus on a relatively unknown phenomenon called "sea level fall" (SLF), which the melting and calving ice sheets and glaciers are causing (You Are Here - 5).

It is one of those non-intuitive impacts that scientists talk about (Dr. Mitrovica).

The graphs at Fig. 1 through Fig. 4 show sea level fall near the coast lines of land masses where ice sheets or glaciers are melting.

Fig. 3 SLF in Svalbard
This phenomenon is caused by the loss of ice-mass gravity which releases captured ocean water as the ice melts or calves (The Gravity of Sea Level Change, 2, 3, 4; The Ghost-Water Constant, 2, 3, 4, 5, 6, 7).
Fig. 4 SLF in Antarctica

The graphic at Fig. 5 is Dr. Mitrovica's way of showing where SLF occurs (dark blue color).

The top section of that graphic shows the coastline near Antarctica (compare with Fig. 4).

The middle section shows Greenland (I skipped that because of the dearth of tide gauge stations @ Greenland).

The bottom section shows glaciers in Alaska, Svalbard, and Patagonia.

The Alaska SLF is graphed at Fig. 1, the Patagonia SLF is graphed at Fig. 2, the Svalbard SLF is graphed at Fig. 3, and the Antarctica SLF is graphed at Fig. 4.

Fig. 5
Each graph is generated by Dredd Blog software that uses the historical data from the WOD and PSMSL databases.

Currently, the future projections are based on IPCC, NOAA. projection equivalents.

To simulate those values I used a 3 ft. for low end projection and 6 ft. for the high end projection.

But unlike the global mean average approach, the Dredd Blog software uses historical data at each geographical location to determine the future SLC (sea level falls or rises depending on geographical location).

Using "one size fits all" logic (commonly called "global mean average sea level rise") is problematic, so in addition to watching the video below, also check out: A Paper From Hansen et al. Is Now Open For Discussion, 2, 3.

The graphic at Fig. 6 is the bottom section from Fig. 5, with blue lines added to show generally where the water goes as it is released from the Alaska cryosphere, the Svalbard cryosphere, and the Patagonia cryosphere areas.

I call this ocean water "ghost-water" because it is not generally known that this ocean water increases sea level rise in other parts of the globe equal in volume to the SLF that results as the ice sheet gravity fades away caused by the ice mass fading away.

If you are interested in the sea level impact that happens beyond the "hinge-point" (where SLF ends and sea level rise begins), check out these posts which go into more detail (Proof of Concept - 3, The Evolution and Migration of Sea Level Hinge Points).

The first video below goes into more verbal detail about this area of global sea level change, especially in terms of physics as it impacts oceanography.

The second video goes into political detail about how the military will respond to a civilian government that does not know where it is (You Are Here).

The previous post in this series is here.

"The Military is the lead federal agency on climate change ... and that is ... extremely dangerous ... we may lose the republic ..." - Professor Wilkerson (ret. colonel)


  1. How "interesting" that the demise of the ice sheets shown on the graphs is a metaphor for the decline of the republic.

  2. Good point, Randy! Well, it's actually the demise of all of civilization and both topics are intimately linked.

    It's only getting worse now, since there's neither the will nor the means to halt the steady decline, which will become an abrupt collapse soon, and then extinction beckons. Humanity keeps producing off-spring while too many other species are in decline/face extinction, and the fact that we've turned the entire biosphere into a sewer doesn't lead anyone with a brain to any other conclusion.

    Octopus in Miami Beach parking garage is global warming’s canary in the coal mine

    Steve Bannon’s trip from climate conspiracy theorist to Trump’s White House


  3. Antarctica, shown in Fig. 4, specifically @ Pine Island Glacier, began its demise circa 1933-1957 according to recent research (Sub-ice-shelf sediments record history of twentieth-century retreat of Pine Island Glacier).