Polar Push & Bounce Back -Trends at the Extremes NEW ZT


This blog is about the Arctic,Antarctica and Extreme Northern/Southern Hemispheres.  Are New Trends happening at the Poles? Weather Patterns, Charts, Images and Unusual Anomalies may be telling us something!

According to the Zetas,  the Wobble Effect has now combined with a new Polar Push!!  



Both poles the sea ice loss is off the charts this month!  Seems something has changed?
[and from another] Is it related to the warming of the oceans from the bottom and the wobble? Where will this lead?[and from another]
Sea ice extent and area have both plummeted to record lows for this time of year in both the Arctic and Antarctic. Such dramatic losses rarely occur at the same time, which means that the global total of sea ice coverage is phenomenally low for this time of year. The weirdness extends to midlatitudes: North America as well as the Arctic have been bathed in unusual mildness over the last several weeks, while Eurasia deals with a vast zone of above-average snowfall and below-average temperatures. [and from another]

It is clear from the charts that the Earth wobble has increased. First, despite Siberia being on the same latitude with Eastern Canada and Europe, there are vast temperature differences. The globe around the Arctic seems to be divided in half in this way at the current time. Just months ago, in July,
we stated that the hot and cold regions in the Northern Hemisphere were divided into four parts, due to the Polar Push and Bounce Back, and the lean to the Left and Right. Now the increased wobble has created a duality, not the quadrant arrangement of the Figure 8 that had been present since 2004.  

The Polar Push wherein the N Pole of Earth is shoved away from the approaching N Pole of Nibiru continues to create cold temperatures in Siberia, where the magnetic N Pole of Earth currently resides. This has also warmed Antarctica, which is getting more sunlight.  The Bounce Back is more fierce, so that Europe and eastern N America are also getting more sunlight, and thus the melting Arctic. What is missing is the temperature anomalies due to the tilt to the Left and Right. They have been lost in the more aggressive back and forth motion of the Polar Push and Bounce Back.  

Prior ZT: http://www.zetatalk.com/ning/23jy2016.htm
The weather maps continue to document the daily Earth wobble, showing abnormal heat over the N American southwest and up into Alaska, and abnormal heat through Europe. Both these regions come under more equatorial sun due to the wobble, due to the lean to the left and then to the right. This is distinctly balanced by cold spots in between. Canada’s eastern provinces and the region above Hudson Bay receive less sunlight due this tilt to one side and then the other. Russia’s Far East and the Siberian region above China of course are pushed into the cold by the daily Polar Push, when the N Pole of Nibiru shoves the Earth magnetic N Pole away.


The Polar Push Effect:




Ecliptic Rise


Planet X approaches from the south, and the Pole Shift occurs because the S. Pole is pulled north with the N. Pole of Planet X during the passage. This stress is already evident in that many have noted that the Sun is too far south, rising too far to the south, for the time of year. Possible explanations for this are that the S. Pole has been pulled toward Planet X, creating a different tilt, but the constellations seem to be in their proper place. An alternate explanation is that the Earth's plane of the Ecliptic has changed, rising up, putting the Northern Hemisphere into a different slant, and placing the S. Pole more in line with the N. Pole of Planet X, an alignment Magnets Prefer.    

Natives to the Arctic,  the Inuit years ago already noticed many changes:

Uqalurait: the Snow is Speaking
November 23, 2009

An Igloolik elder, describes that uqalurait are changing because the earth itself has "tilted" and has thrown off the consistent wind patterns of the past. The earth tilting on its axis is another re-occuring observation that we are hearing from Inuit, which they know because of how the sun, moon and stars have changed in the sky. Indeed, elders simultaneously know the complexities of the cosmos, land, wind and sky.


Both Poles are affected!



The Zetas describe the Final Days of the Wobble:


During the last weeks, the Earth changes from being in an end-to-end alignment with Planet X to being in a side-by-side alignment. It is during the end-to-end alignment, when Planet X is pointing its N Pole directly at the Earth, that the lean to the left and 3 days of darkness occur. But as Planet X continues in its retrograde orbit, its N Pole is no longer coming from the right, but is located to the left of the Earth, and the Earth adjusts by slinging its N Pole to the right. Thus, during the 6 days of sunrise west, the Earth still has its N Pole tipped away from the Sun and the approaching Planet X, but rather than a lean to the left, it has a lean to the right.
It is at this point that the Earth switches from being in an end-to-end alignment to being in a side-by-side alignment with Planet X. When Planet X is just at the Ecliptic, it stands upright in alignment with the Sun. As it switches from pointing its N Pole at Earth the Earth follows suit.
ZetaTalk: September 12, 2009


Some charts to follow and/or post in this blog are HERE:

Climate ReAnalyzer


Google has the biggest collection of charts to view/post here!





With a stronger Polar Push the bounce back would likewise be more extreme, and the bounce back occurs when the Sun is over the Atlantic.  As the wobble continued to get worse, the Figure 8 corrective lean to the right and left also got more extreme. This sets the stage for the current 2017 hurricane season.

(Modified Earth images are from Google Earth)

Sunlight on Earth reflection based on image in the Planet X Related Captures Blog

The Figure 8 of the wobble creates a churning in the Atlantic:

1.) First land on either side of the Atlantic is pushed under water during the Polar Push,

2.) Then the N American Continent is slung to the East

3.) Then to the West as the day dawns and

4.) Then the bounce back pulls this land back up to the North. 

The wobble, in short, is churning the North Atlantic in a circular motion. Where this fits with the Coriolis effect, where the winds and water curl up from the Equator in a circular motion, moving clockwise in the Northern Hemisphere, the lean to the left does a direct clash, pushing the storm back in a path toward the US coastline.

This is the current Wobble pattern, but the Wobble is subject to change:

5.) A lean into Opposition has occurred, the N Pole leaning toward the Sun. **NEW LEAN**

6.) And a temporary Lean to the Left could occur,

7.) as well as a temporary Day of Darkness for the Northern Hemisphere.

This is not a static situation. (this will occur more than once, in other words).

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Comment by SongStar101 on March 7, 2018 at 11:24am

The Arctic Heats Up in the Dead of Winter


Every once in a while a climatic event hits that forces people to sit down to catch their breath. Along those lines, abnormal Arctic heat waves in the dead of winter may force scientists to revaluate downwards (or maybe upwards, depending) their most pessimistic of forecasts.

By the end of February 2018, large portions of the Arctic Ocean north of Greenland were open blue water, meaning no ice. But, it’s wintertime, no daylight 24/7, yet no ice in areas where it’s usually some meters thick! In a remarkable, mindboggling turn of events, thick ice in early February by month’s end turned into wide open blue water, metaphorically equivalent to an airline passenger at 35,000 feet watching rivets pop off the fuselage.

The sea ice north of Greenland is historically the thickest, most solid ice of the North Pole. But, it’s gone all of a sudden! Egads, what’s happening and is it a danger signal? Answer: Probably, depending upon which scientist is consulted. Assuredly, nobody predicted loss of ice north of Greenland in the midst of winter.

According to Ruth Mottram, a climate scientist at the Danish Meteorological Institute in Copenhagen, February was the warmest (hottest) on record in the Arctic, which includes 10 days of temps above freezing. As for Arctic temps in February, that’s hot! “We’ve actually got open water at the top of Greenland right now, which is incredibly unusual,” (Mottram – Source: Europe’s Cold Blast, Arctic’s Heat Wave are ‘Two Sides of the Same Coin,” Public Radio International, March 2, 2018).
“This is an anomaly among anomalies. It is far enough outside the historical range that it is worrying – it is a suggestion that there are further surprises in store as we continue to poke the angry beast that is our climate,” said Michael Mann, director of the Earth System Science Center at Pennsylvania State University. (Source: Jonathan Watts, Global Environmental Editor, Arctic Warming: Scientists Alarmed by ‘Crazy Temperature Rise’, The Guardian, Feb. 27, 2018).

During February the world’s most northerly weather station at Cape Morris Jesup on the tip of Greenland registered temps warmer than London and Zurich for days on end. The Cape Morris Jesup weather station is only 440 miles away from the North Pole.

When analyzing or writing about the complexities of ecosystem events, like loss of Arctic sea ice, it is easy to overstate negatives, if only because there is no evidence of a similar event in recent climate history. Furthermore, the scientific community is widely split on likely consequences, running the gamut from “no worries for at least 100 years” to “the world will incinerate within 10 years,” meaning Runaway Global Warming (RGW”), as a result of massive release of methane (“CH4”) trapped in frozen waters for millennia, causing temps to crank up by 10 °F-to-15 °F, which will pretty much wipe out a lot of agricultural crops. In turn, the world turns into a dystopian hellhole and reverts to caveman/cavewoman lifestyle.

Indeed, the dangers that arise with loss of Arctic ice are multifold, including loss of the Arctic as the planet’s biggest reflector/air conditioner. When covered with white reflective ice, it reflects up to 90% of solar radiation back into outer space. Without ice, that same 90% is absorbed within a dark blue background, potentially heating up tons upon tons, and more tons yet, of frozen methane, metaphorically similar to throwing kindling onto a hot fire, as global warming heats up big time and sizzles agricultural crops down to blackened stubs throughout the mid latitudes, driving humanity into the farthest northern latitudes for survival, a crowded scenario indeed.

And that’s the rub because, across the board, scientists agree ecosystem changes today are exponential, which could be problematic. As explained by one scientist, linear versus exponential means that a person can take 30 linear steps to the water cooler across the room but if exponential, the 30 steps takes him/her around the world, more than once. That’s exponential, and that’s the rate of change in ecosystems, like the Arctic. Therein lies the unknown risk factor of how soon temps mushroom upwards? Nobody knows for sure, but they do know that ecosystems are changing exponentially, especially in the ocean.

Here’s the ultimate risk: 55 million years ago global temps spiked during the Palaeocene-Eocene Thermal Maximum (“PETM”). The temp surge by 6 °C (11 °F) happened in just 13 years, which if repeated today, would be unbelievably devastating, but the science is controversial as to the timing of the surge 55 millions ago. Some scientists say 13 years; some scientists that look at the same data say 1500 years. Hopefully, it’s the latter. But unfortunately, with exponential change already underway, that wish does not look very promising.

Comment by jorge namour on March 1, 2018 at 5:41pm

'Ice sheet melt caused by heat from Earth core not just global warming': NEW REPORT CLAIMS Aug 4, 2016


Heat from the earth's core is melting the base of the Greenland ice sheet

'The MASSIVE Greenland ice sheet is being melted as a result of heat emitted from the Earth, rather than rising atmospheric temperatures, a new NASA study has claimed'.
The US space agency, which uses satellites orbiting the earth to monitor the environment and study climate change, looked at how much the the huge ice sheet was still attached to bed rock underneath.

For the first time, the agency obtained a series of temperatures from the base of the sheet - the second biggest in the world after that in the Antarctic - and found it was up to tens of degrees warmer at the base than the surface.

The Greenland ice sheet is around 1,500 miles north to south and up to 680 miles across.

But they also said it was heat coming out of the bedrock itself which was causing the melting.

This means the ice sheet would melt from below anyway even if global warming was not taking place.

A NASA spokesman said: "Greenland’s thick ice sheet insulates the bedrock below from the cold temperatures at the surface, so the bottom of the ice is often tens of degrees warmer than at the top, because the ice bottom is slowly warmed by heat coming from the Earth’s depths. CONTINUE....
The hot core of the Earth is responsible for the melting of the Greenland icecap

February 18, 2018,




Recently it was suggested that there may be a hidden heat source beneath GIS caused by a higher than expected geothermal heat flux (GHF) from the Earth’s interior.

The icecap of Greenland melts, but it turns out that the responsible is not global warming, as some would have you believe. Instead, the researchers have now found evidence that a heat source hidden at the bottom of the planet is behind this melting ice that carries glaciers into the ocean.

Researchers from the University of Aarhus in Denmark used a ten-year study of Young Sound Fjord in Greenland to draw their conclusions. Throughout the survey, measurements were made of salinity levels and temperatures in the fjord, where water at depths between 200 and 330 m gradually warmed.

They discovered that much of this heat came from inside the Earth. According to their estimates, 100 megawatts of energy per square meter have been transferred from the interior of the Earth to the fjord, and it is believed that similar amounts of heat have been transferred to the bottom of the surrounding glaciers. That's roughly equivalent to a 2-megawatt wind turbine that sends electricity to a huge radiator at the bottom of the fjord all year long. Their conclusions were published in the journal Scientific Reports .
The heat loss of the interior of our planet warms essentially the deep water temperatures where the fjords are, melting the glaciers. The heat, which is called geothermal heat flux, is found everywhere on our planet and goes back to its birth.

In addition, scientists say that warming and melting under the icecaps that these heat flows induce "essentially lubricates the interface between ice and soil, which greatly accelerates the movement of ice."

Comment by SongStar101 on March 1, 2018 at 8:22am

Arctic warming causes concern among scientists

While Europe freezes, the polar region continues to see unprecedented warm weather.


28 Feb 2018 10:06 GMT

Most of the coverage of Europe's weather over the last week or so has been, rightly, focused on the so-called, 'Beast from the East' and the Sudden Stratospheric Warming' (SSW).

Both SSW and the intense anticyclone that caused frigid Siberian air to sweep across Europe are entirely natural events, albeit quite infrequent. The same cannot be said for some of the weather anomalies being reported in the Arctic region.

Scientists understanding of the polar regions, in general, is limited. An accurate database of instrument readings extends back just a few decades, and reliable satellite data from the region only became available in the 1970s.

Nevertheless, many climate scientists are concerned about the extent of the recent warming in the region, which appears to be accelerating at a dramatic rate.

In the last week, temperatures have reached above freezing (0 degrees Celsius) at the North Pole.

It is important to remember, that the region is in the depths of winter, with almost total darkness.

Even more remarkably, the weather station on the northern tip of Greenland, Cape Morris Jesup, recorded a temperature of 6.1C on Sunday, and temperatures remained above freezing there for 61 hours, a new record.

This month there have been 10 days above freezing for at least part of the day at this weather station, which lies just 700km from the North Pole.

According to Ruth Mottram of the Danish Meteorological Institute, "spikes in temperature are part of the normal weather patterns - what has been unusual about this event is that it has persisted for so long and that it has been so warm."

She added: "Going back to the late 1950s at least, we have never seen such high temperatures in the high Arctic."

Speaking to Live Science, James Overland, an oceanographer with Pacific Marine Environmental Laboratory said: "We've seen something like this once every 10 years in the past, but this is the second major example of this happening in the last couple of years. What's different this time is that we have less ice and thinner ice in the Arctic. When you bring warmer air north, it doesn't cool off as fast as it used to.

All this is hardly surprising as 2015, 2016 and 2017 are the three warmest years globally since records began in 1880. The Arctic region is warming at a much greater rate than anywhere else. Globally, temperatures have risen by about 1C in the last 100 years, but in the Arctic region, the warming is closer to 3C.

This has resulted in a sustained year-on-year decrease in the extent of sea ice, and what coverage there is, is of much thinner, younger ice than in the past.

Climate scientists disagree as to the extent to which the current warming is directly attributable to human-induced climate change.

Zeke Hausfather of Berkley Earth, an independent, non-profit climate science organisation remains doubtful.

"The current excursions of 20C or more above average experienced in the Arctic are almost certainly mostly due to natural variability. While they have been boosted by the underlying warming trend, we don't have any strong evidence that the factors driving short-term Arctic variability will increase in a warming world," he said

But Michael Mann, director of the Earth System Science Center at Pennsylvania State University, takes a different view.

"This is an anomaly among anomalies," Mann said.

"It is far enough outside the historical range that it is worrying - it is a suggestion that there are further surprises in store as we continue to poke the angry beast that is our climate," he added. 

"The Arctic has always been regarded as a bellwether because of the vicious circle that amplifies human-caused warming in that particular region. And it is sending out a clear warning."

What is clear is that the weakening of the polar vortex, because of the warming in the region, makes the climate more unstable. This encourages longwave ridges and troughs to develop in the flow around the Arctic Circle.

Plunges of cold air across Europe and domes of warm air across the Arctic could become more frequent events in the years ahead.



Blue ice piling up near Michigan's Mackinac Bridge


MACKINAW CITY, MI - Blue ice doesn’t always stack up along the Great Lakes shoreline. But when it does form – and its irregular rectangles begin to tower with Michigan’s iconic Mackinac Bridge in the background – it sends photographers running for the perfect shot.

Comment by SongStar101 on February 28, 2018 at 11:23am

The polar vortex just split in two. Get ready for some wild weather from Europe to the U.S.


The polar vortex, the notorious swirl of winds around a low pressure area in the upper atmosphere over the Arctic, has split in two. Since the polar vortex tends to be associated with some of the coldest air during the winter, the split — which is more like a temporary separation than a lasting divorce — means that ultra cold air is on the move. 

A split in the polar vortex may sound like a complicated weather concept, but it has huge consequences for weather patterns from Canada to Eurasia. The latest split is likely to put Western Europe and much of Eurasia into the deep freeze for the rest of February, and will offer glimpses of hope for snow lovers along the U.S. East Coast. 

Figuring out where the coldest air will go and how it will affect worldwide weather patterns for the next several weeks is a key task facing weather forecasters now. 

Helping matters is that most computer models appear to agree on the broad scenario that's likely to play out. Indications are that in the near-term, colder and stormier conditions than average are likely for Western Europe and much of Eurasia during the rest of February into early March.


During that same period, the Eastern U.S. will experience something of a spring thaw, with temperatures as much as 20 to 25 degrees Fahrenheit above average for this time of year. 

Highs in the 70s Fahrenheit are possible during the closing days of February in Washington, D.C. and New York City, areas that saw record cold at the start of the winter. 

Ski areas in the western part of the country, particularly in the Northern Rockies, could see heavy snowfall and ideal snowmaking conditions during the next two weeks.

Back to the polar vortex, though. One piece of the vortex is sliding southwest, out of the Arctic and into western Canada and the Pacific Northwest, where frigid conditions and above average snowfall is favored for the next few weeks. Another is spinning out of the Arctic and over Eurasia. 

Caught in between is the Arctic Ocean, which should have some of the coldest air of any region in the Northern Hemisphere right now, but instead has seen yet another unusually mild winter. The polar vortex's split means that the ultra-cold air is being siphoned away from the Arctic, leaving unusually mild conditions in its wake. 

Don't be surprised if Arctic sea ice sets yet another record low for the winter season. 

This split occurred in the stratosphere

The main polar vortex exists in the stratosphere, which is the layer of air above where most of our weather occurs. A sudden warming of the stratosphere over the Arctic, appropriately known as a "sudden stratospheric warming event," took place in early-to-mid February, and this has caused the splitting of the stratospheric polar vortex. 

Sudden stratospheric warming events occur when large atmospheric waves send energy upward, into the stratosphere, setting in motion a complex process that results in the temporary breakdown of the polar vortex. This February's stratospheric warming event was particularly extreme, possibly setting records for how sharply temperatures spiked in the upper atmosphere.

The polar vortex split isn't the only factor favoring a cold snap in Europe, warmup in the Eastern U.S., and cool down in the West. There's also a cycle of atmospheric pressure over the North Atlantic Ocean, known as the North Atlantic Oscillation (NAO), that can increase the odds of colder and snowier weather in some of these areas. 

Computer models are projecting the NAO will become strongly negative during the next few weeks in response to the polar vortex split and stratospheric warming event, and this also favors cold and snow in Western Europe. (It also ups the odds of similar weather in the eastern U.S., but that may not happen right away.)

"A significant PV [polar vortex] disruption is often followed by widespread cold temperatures across northern Eurasia and the Eastern US. However the cold is more certain across northern Eurasia following these type of PV disruptions," meteorologist Judah Cohen, who specializes in seasonal weather forecasting and tracking the polar vortex for AER, a Verisk Analytics company, wrote on his blog.  

The negative mode of the NAO typically features an area of strong high pressure over Greenland, which blocks the progression of weather systems moving in from the southwest, and causes the jet stream to plunge southward over Europe, allowing cold air to flow in from the Arctic and Scandinavia. Sudden stratospheric warming events tend to cause the NAO to switch into negative mode shortly after they occur. 

The rest of February should feature a colder than average Western U.S., coupled with a milder than average East Coast. However, the negative NAO phase could bring a return of winter weather to the East in early March, depending where exactly that Greenland block sets up. There's often a delay between when the polar vortex is disrupted, and when the cold air arrives in parts of the U.S., if at all. 

Snow lovers will be watching upcoming forecasts anxiously, because the deeper into March we go, the less likely widespread snows along the East Coast become. 

Comment by M. Difato on February 22, 2018 at 7:30pm

 Arctic temperatures soar 45 degrees above normal, flooded by extremely mild air on all sides


 (The temperature difference from normal over the Arctic averaged over the next five days in the GFS model forecast. (University of Maine Climate Reanalyzer)

 While the Eastern United States simmers in some of its warmest February weather ever recorded, the Arctic is also stewing in temperatures more than 45 degrees above normal. This latest huge temperature spike in the Arctic is another striking indicator of its rapidly transforming climate.
On Monday and Tuesday, the northernmost weather station in the world, Cape Morris Jesup at the northern tip of Greenland, experienced more than 24 hours of temperatures above freezing according to the Danish Meteorological Institute. “How weird is that?” tweeted Robert Rohde, a physicist at the University of California at Berkeley. “Well it’s Arctic winter. The sun set in October and won’t be seen again until March. Perpetual night, but still above freezing.”
This thaw occurred as a pulse of extremely mild air shot through the Greenland Sea.
Warm air is spilling into the Arctic from all sides. On the opposite end of North America, abnormally mild air also poured over northern Alaska on Tuesday, where the temperature in Utqiaġvik, previously known as Barrow, soared to a record high of 31 degrees (minus-1 Celsius), 40 degrees (22 Celsius) above normal.
The warmth over Alaska occurred as almost one-third of the ice covering the Bering Sea off Alaska’s West Coast vanished in just over a week during the middle of February, InsideClimateNews reported. Brian Brettschneider, a climatologist based in Alaska, posted that the overall sea ice extent on Feb. 20 was the lowest on a record by a long shot.
 The lack of ice has real consequences for villages along the Bering Sea whose shores are normally protected from big storms and their giant waves. Without the ice as a buffer, waves can hammer the coastline and damage homes and buildings, as this video from the village of Diomede, Alaska, shot on Feb. 20 illustrates:
“Scary stuff, on many levels,” tweeted Rick Thoman, an Alaskan meteorologist.
Temperatures over the entire Arctic north of 80 degrees latitude have averaged about 10 degrees (6 Celsius) above normal since the beginning of the calendar year, sometimes spiking over 25 degrees (14 Celsius) above normal (the normal temperature is around minus-22, or minus-30 Celsius)..."
Comment by Stanislav on January 8, 2018 at 10:52am

The levels of radium-228 have almost doubled over the last decade in the middle of the Arctic Ocean

Diminishing sea ice near the Arctic coast leaves more open water near the coast for winds to create waves. The increased wave action reaches down and stirs up sediments on shallow continental shelves, releasing radium and other chemicals that are carried up to the surface and swept away into the open ocean by currents such as the Transpolar Drift. A new study found surprising evidence that climate change is rapidly causing coastal changes in the Arctic that could have significant impacts on Arctic food webs and animal populations. Credit: Natalie Renier, Woods Hole Oceanographic Institution. Image source: phys.org

3 January, 2018. "Scientists have found surprising evidence of rapid climate change in the Arctic: In the middle of the Arctic Ocean near the North Pole, they discovered that the levels of radium-228 have almost doubled over the last decade.

<...> To their surprise, the research team found that radium-228 concentrations in the central Arctic Ocean had increased substantially since measurements had last been made in 2007. What was its source and why had it increased?

<...> They concluded that the excess radium had to have come from sediments in the East Siberian Arctic Shelf off Russia, the largest continental shelf on Earth. It is relatively shallow, with an average depth of 170 feet, but it extends 930 miles off shore and contains a vast reservoir of radium and other chemical compounds."


Woods Hole Oceanographic Institution (2018, January 3). Scientists find surprising evidence of rapid changes in the Arctic. Retrieved January 08, 2018, from https://phys.org/news/2018-01-scientists-evidence-rapid-arctic.html

Journal reference:

Kipp, L. E., Charette, M. A., Moore, W. S., Henderson, P. B., & Rigor, I. G. (2018). Increased fluxes of shelf-derived materials to the central Arctic Ocean. Science Advances, 4(1). doi:10.1126/sciadv.aao1302

Link [Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).]

Comment by SongStar101 on January 3, 2018 at 11:39pm

Unfolding Arctic Catastrophe


On January 2018, methane levels as high as 2764 ppb (parts per billion) were recorded. The solid magenta-colored areas near Greenland indicate that this very high reading was likely caused by methane hydrate destabilization in the sediments on the seafloor of the Arctic Ocean.

The state of the sea ice is behind this. On January 1, 2018, Arctic sea ice extent was at record low for the time of the year. The smaller the extent, the less sunlight gets reflected back into space and is instead absorbed in the Arctic.

At this time of year, though, hardly any sunshine is reaching the Arctic. So, what triggered this destabilization? As the image below indicates, year-to-date average Arctic sea ice volume has been at record low in 2017, which means that there has been very little sea ice underneath the surface throughout 2017.

Warm water will melt the sea ice from below, which keeps the water at greater depth cool. However, when there is little or no sea ice underneath the surface, little or no heat will be absorbed by the process of melting and the heat instead stays in the water, with the danger that it will reach sediments at the bottom of the Arctic Ocean, as illustrated by the image below.

[ image from: Warming is accelerating ]
The image on the right shows warm water from the North Atlantic arriving near Svalbard. How warm is the water beneath the surface of the Arctic Ocean? The image below gives an indication, showing how much warmer the water was from October 1, 2017, to December 30, 2017, at selected areas near Svalbard, where warm water from the North Atlantic dives under the sea ice of the Arctic Ocean, carried by the Gulf Stream.
[ click on images to enlarge ]
In 1981-2011, temperatures were gradually falling by more than one degree Celsius from October 1 to the December 21 Solstice, then started to rise again in line with the change in seasons (blue line).
In 2017, temperatures were rising in October. On October 25, 2017, the sea surface was as warm as 17.5°C or 63.5°F, i.e. a 14.1°C or 24.5°F anomaly. On average, it was 12.96°C or 23.35°F warmer during the period from October 1 to December 30, 2017 (red line), compared to the same days in 1981-2011.
Comment by SongStar101 on December 14, 2017 at 11:58am

The Arctic Is Warming Faster Than at Any Point in the Past 1,500 Years


The Arctic is warming faster than at any point in the past 1,500 years, according to a federal government report released Tuesday. The report, led by scientists at the National Oceanic and Atmospheric Administration, also found that maximum winter sea ice coverage in the Arctic was the smallest ever recorded.

The peer-reviewed annual report card, presented at the American Geophysical Union fall meeting, compiled the work of 85 scientists from 12 nations.

“The Arctic is going through the most unprecedented transition in human history.”

“The Arctic is going through the most unprecedented transition in human history,” said Jeremy Mathis, director of NOAA’s Arctic Research Program, during a press conference.

In 2017, maximum winter sea ice area, measured each March, was the lowest ever observed.  Permafrost, the layer of soil that remains frozen in the Arctic, also thawed faster than ever before.

A section of the report based on geological records found that sea ice is now declining, and temperatures warming, at a faster rate than at any other time in the last 1,500 years.

2017 was the second warmest year in the Arctic since 1900, when instrumental recordkeeping began. The all-time record was set last year. While fewer records were shattered this year than in 2016, the Arctic shows no sign of returning to the reliably frozen region it was decades ago, the report says.

The Arctic is warming about twice as rapidly as anywhere else on Earth, affecting people in the region, the fish and wildlife they depend on for food, and their environment.

“The Arctic has traditionally been the refrigerator of the planet,”  Mathis said. “But the door to that refrigerator has been left open.”

Overall, the Arctic has reached a “new normal,” the report finds, characterized by declines in sea ice cover, winter snow cover, and the mass of the Greenland Ice Sheet and Arctic glaciers.  The Arctic Ocean is also warming.

“The unprecedented rate and global reach of these changes highlight the pressing need to prepare for and adapt to the New Arctic,” the report says.



Comment by SongStar101 on November 15, 2017 at 11:40am

"There is now less sea ice globally than at any other time since satellite records began in 1978."

'Daunting' Antarctic sea ice plummet could be tipping point


A dramatic drop in the amount of sea ice around Antarctica has scientists wondering if the continent has hit a tipping point. 

There has been a record 30 percent decrease in the total amount of sea ice, and this summer it's disappearing from the Ross Sea at a rate not seen in more than 30 years. 

The rapidly changing conditions are having a major impact on this year's scientific research at Scott Base, with scientists describing the changes as "unusual", "unprecedented" and "daunting".

One of the affected scientists is Antarctic oceanographer Dr Natalie Robinson, who studies sea ice and what lies beneath it. 

"We had about 200km of sea ice to play with last year, but this year we're down to about 25-30km, so it's certainly a very different ball game," she told Newshub.

The team's plan to drill holes through the sea ice has proved impossible this season, with some of their sites now just open water.

It's also affected their camping plans. The team usually bring eight modified shipping containers onto the ice to live and work from for several weeks, but Scott Base checked the ice and it was deemed too thin or weak for heavy vehicles to travel on.

Photo credit: NASA Icebridge

The Antarctic sea ice growth in winter and melt in summer is the biggest annual change on the planet. Dr Robinson describes it as the heartbeat or pulse of Earth, and it affects everybody because it drives global weather.

"It basically doubles the size of Antarctica each year and where that sea ice sits determines where the storms go, and when and where they might hit New Zealand," she said. 

But the big changes occurring in Antarctica impact not only weather, but the health of the world's oceans too, delivering oxygen and nutrients.

During November the sea ice edge is usually around 100km further north of where it is this year. For it to have broken out this early is a significant change and it's causing alarms bells to ring.

"This is my 30th trip into the Southern Ocean and Antarctica," climate scientist Professor Gary Wilson told Newshub.

"Of all the visits I've made down here, we haven't seen the sea ice break out as much as it has this early."

Photo credit: Newshub.

This graph shows the normal range of sea ice in November since 1978. In 2016, there was a sudden and dramatic drop.

This year looks to be following suit.

"We're seeing the ice shelves break up around the peninsula, we're seeing sea ice extent change," Prof Wilson said.

"It dropped rapidly last year and we're seeing now early break-up of the sea ice. Many of these things coming together certainly don't bode well."

The sea ice is not only melting ahead of schedule, there's a lot less of it to begin with. Last year there was 30 percent less ice - a drop of around 1 million square kilometres.

Climate scientists believe Antarctica may have hit a tipping point.

Photo credit: Newshub.

"This could be the moment that Antarctica is catching up with the Arctic," Prof Wilson said.

"Geologically we know that's the case that both poles warm equally, but it hasn't been the case yet with the Antarctic. But maybe this is the moment."

There is now less sea ice globally than at any other time since satellite records began in 1978. Last year, when it reached a record low, was also the hottest year on record.

"The impacts that we're having on the planet, it wouldn't surprise me if we are going to some sort of step change in how the Antarctic sea ice system operates," Dr Robinson said.

"We're really in a critical position I think... We're actually in a race because we know changes are coming, and it's just whether we're ahead of the changes to understand them and predict them better."

Prof Wilson said the abrupt change is "exciting" but troubling.

"In one sense it's exciting we're starting to see signs, in another sense it's daunting because when ice melts it tends to melt rapidly," he said.

The scientists and staff at Scott Base have been forced to adapt to the changes in sea ice this season. They can't traverse as far north on it and it needs to be regularly checked for safety when the large vehicles are driving over it.

At least one expedition has had to be cancelled, while cracks have made some regular routes impassable for vehicles carrying scientific equipment.

Climate scientists will be watching closely over the next few years to establish whether this is a one-off event, or the moment Antarctica began to succumb to a rapidly warming planet.

Comment by SongStar101 on November 1, 2017 at 6:33pm

Update: Satellites measuring Earth’s melting ice sheets go dark


Artist’s conception of the GRACE spacecraft orbiting Earth.

Update, 27 October, 11:25 a.m.: NASA announced today that it has ended GRACE's science operations earlier than expected, after determining that its remaining battery capacity would not be sufficient for one last run that was previously planned to last from October into early November. Its early demise leaves what could be close to a half-year gap in its records before its successor mission, GRACE Follow-On, launches early next year.

Here is our earlier story from 15 September:

A sentinel of Earth’s climate is going dark. After running for a decade beyond its planned life, the Gravity Recovery and Climate Experiment (GRACE) is nearly out of fuel and will soon make its final science run, NASA announced late yesterday. The tandem of satellites—called GRACE-1 and GRACE-2—measure minute shifts in Earth’s gravity to chart flows of mass across the planet, such as the unexpectedly rapid melt of polar ice sheets and the drawdown of underground water reservoirs called aquifers.

Scientists had hoped GRACE would operate until its successor, the $550 million GRACE Follow-on (GRACE-FO) mission, reached orbit. But troubles securing a ride to space have delayed GRACE-FO’s launch until early 2018. Meanwhile, the battery in GRACE-2 used to store solar power has been deteriorating rapidly, forcing the satellite to burn through fuel. Engineers turned off an accelerometer last year to keep it running, but the satellite’s data have continued to degrade.

On 4 September, scientists lost contact with GRACE-2 after another of its battery cells stopped operating. Four days of feverish work followed, with scientists steeling themselves for the mission’s end. But finally, engineers bypassed the satellite’s flight software, successfully rebooting it. NASA has now put GRACE-2 on standby until mid-October, when it will run until early November in full sun on its final planned science collection.

However small, a gap between the missions will make it more challenging to stitch their records together into a seamless whole, says Eric Rignot, a glaciologist at NASA’s Jet Propulsion Lab in Pasadena, California. There are alternative ways to calculate some of the measures GRACE provides, so stopgaps are possible. For example, changes in the mass of the ice sheets can be estimated by using other satellite data to compare discharges of peripheral ice to snowfall accumulations. But there is no comparable method to monitor changes in the mass of glaciers or ice caps, let alone the measures of Earth’s groundwater and soil moisture that hydrologists derive from the satellites. “It would be an impossible task to fill the gap,” Rignot says.

A dynamic duo

A joint U.S.-German effort, GRACE has provided an unprecedented view of the planet’s water and ice since its launch in 2002. The experiment relies on measuring changes in the tug of gravity as the two satellites orbit the Earth. Flying 220 kilometers apart, the GRACE satellites constantly monitor their distance from each other with microwave pulses, down to microns. When the satellites approach a more massive feature, such as an ice sheet, the enhanced gravity of that region tugs a little bit more on the first satellite—briefly widening the distance between the pair—before the second satellite catches up. The changes in distance can be translated into mass.

This data revolutionized entire disciplines, such as hydrology, allowing scientists to document the loss of groundwater due to human exploitation. GRACE showed that the melting polar ice sheets are contributing more to sea level rise than the demise of mountain glaciers. Greenland, it found, is losing 280 gigatons of ice a year on average, while Antarctica is shedding 120 gigatons—rates that both seem to be accelerating. GRACE also inspired a similar mission, NASA’s Gravity Recovery and Interior Laboratory, which probed the moon’s interior.

There’s much that can still be done with GRACE’s archival data, says Isabella Velicogna, a geophysicist at the University of California, Irvine. For example, Velicogna and her colleagues recently used GRACE data to observe for the first time a strange, c...: Melting ice sheets in Greenland and Antarctica are pouring water into the oceans and adding to sea level rise. But the lost ice also means lost gravity—and so sea levels in the immediate vicinity of the ice sheets actually drop, while ocean levels half a world away are goosed. The dynamic, called sea level fingerprints, had wide acceptance in the field, but GRACE provided the first direct confirmation that it was happening.

Although the data gap is unfortunate, it was never a sure bet that GRACE would hold out, Velicogna says. And GRACE-FO, essentially a replication of the first mission, will provide finer mass resolutions by measuring the distance between the two satellites not just with microwaves, but with an experimental laser ranging in.... It’s the same technology that could one day help a planned satellite constellation capture gravitational waves.

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