The algae growth slows each winter when
sea ice blocks sunlight, leaving behind layers similar to tree rings.
Last Friday afternoon, on a conference call hosted by the National Research Council to present a recent report on the Arctic region, Stephanie Pfirman, an environmental science professor at Barnard College, said Arctic ice coverage is shrinking and that thicker
sea ice blocks, which anchor much of the landscape, are rapidly melting.
(Click here for a wider view of Antarctica and
the sea ice blocking the path.)
Not exact matches
A frozen
sea, surviving as
blocks of pack
ice, may lie just beneath the surface of Mars, suggest observations from Europe's Mars Express spacecraft.
The research team — which utilized 34,000 data records from 2010 and 2011 — concluded that melting
sea ice is diluting seawater and reducing the concentrations of the carbonate minerals critical as building
blocks for the shells of marine life.
By the end of August, the Northern
Sea Route was open, with
ice still
blocking the Northwest Passage.
I forget the reality of having to practically hack my car out of an
ice block on those «frosty mornings»; the threat of losing an eye in a
sea of umbrella spokes on those «rainy cobbled streets» and that horrible, sweaty mess you turn into as the layers that protected you from the chill outside have to be peeled off everytime you go into an overcrowded, over-heated department store on the Christmas shopping run.
- Fish (salmon, cod, pufferfish, tropical fish)- Bucket of fish - Coral (coral, coral fans, coral
blocks)- Kelp, Dried Kelp, Kelp
Block - Dolphins (follow boats, get a boost swimming next to them)- Icebergs - Blue
Ice - Nine Ocean Biomes (frozen, deep frozen, cold, deep cold, lukewarm, deep lukewarm, normal, deep normal, warm)- Underwater Ravines & caves -
Sea grass -
Sea pickle (w / illumination!
When you have the largest Atlantic storm in recorded history that is being feed by unusually warm ocean waters (+5 °F) and is being steered in a very unusual direction by a «3 - sigma»
blocking higher over Greenland after the largest Arctic
sea ice melt in human history, you might want to consider the «steroid» hypothesis a bit more.
During Greenland summers, melting Arctic
sea ice favors stronger and more frequent «
blocking - high» pressure systems, which spin clockwise, stay largely in place and can
block cold, dry Canadian air from reaching the island.
The paper uses evidence and modeling to explain how the sun -
blocking impact from a 50 - year stretch of unusually intense eruptions of four tropical volcanoes caused sufficient cooling to produce a long - lasting shift in the generation and migration of Arctic Ocean
sea ice, with substantial consequences for the Northern Hemisphere climate that lasted centuries and left a deep imprint on European history.
A recent article in Scientific American stated that once the
sea ice breaks away the inland
ice is no longer
blocked on its way to the
sea.
That meltdown may be the impetus for an accelerating doom as it opens up shipping lanes previously
blocked by
ice in the Arctic
Sea.
For example, warm
sea - water can cause «
blocking»
sea -
ice shelves to collapse.
I think there is evidence that AGW has caused the decline in arctic
sea ice, which may be responsible for the changes seen in the paths of the jet stream, which may be responsible for the
blocking high over Greenland which was responsible for Sandy's left turn.
You say that there is evidence that AGW has caused the decline in arctic
sea ice, which may be responsible for the changes seen in the paths of the jet stream, which may be responsible for the
blocking high over Greenland which was responsible for Sandy's left turn.
Inside the Arctic the big factor is
sea ice extent because that makes a huge difference by
blocking radiative and evaporative cooling and not conducting particularly well either.
If that huge
block of
ice ever melted completely,
sea levels would rise some 60 meters!
Lastly, even the record low Arctic
ice levels may have influence over these types of storms by messing with the Jet Stream and
blocking the storms from heading out to
sea, instead shoving into the east coast.
Correction to the above: I should have said the
ice in the Archipelago
blocks cold Arctic
sea water from leaving, thereby inhibiting the ingress of warmer southern water.
Rhetorically, I have asked before when the Straits of Magellan and Cape Horn will be
blocked by Antarctic
sea ice in September.
They generally form during the winter,
blocking the transport of
sea ice from the Lincoln Sea into Baffin B
sea ice from the Lincoln
Sea into Baffin B
Sea into Baffin Bay.
On the other hand, the Northern
Sea Route, a shortcut along the Eurasian coast that is often at least partially open, was completely
blocked by a band of
ice this year.
Cornell and Rutgers researchers report in the March issue of Oceanography that the severe loss of summertime Arctic
sea ice - attributed to greenhouse warming - appears to enhance Northern Hemisphere jet stream meandering, intensify Arctic air mass invasions toward middle latitudes, and increase the frequency of atmospheric
blocking events like the one that steered Hurricane Sandy west into the densely populated New York City area.
The study authors conclude that warming temperatures due to climate change are making it more difficult for
ice arches to form every winter, preventing them from
blocking the southward flow of
sea ice.
«Being able to track and forecast the tracks of these huge
blocks of
ice will be a major benefit to the shipping industry, particularly as more ships begin to use polar waters, as Arctic
sea ice melts.
I assume this lack of awareness was due to a lack of data on large
sea ice loss seasons and lack of extreme events caused by
blocking.
Strong winds blowing off the continent are pushing the giant floe away from its parent, the giant Pine Island Glacier, and the warming Southern Hemisphere's has melted the thick winter
sea ice that held the
block in place since July, said Grant Bigg, an ocean modeler at the University of Sheffield in the United Kingdom.
Yes, it appears none of this
sea ice causes
blocking appeared until after the IPCC was complete.
In their paper «Exploring recent trends in Northern Hemisphere
blocking,» Barnes and colleagues used various meteorological definitions of «
blocking» along with various datasets of atmospheric conditions to assess whether or not there have been any trends in the frequency of
blocking events that could be tied to changes in global warming and / or the declines in Arctic
sea ice.
The new study, along with other previously published research, showed that the decline in
sea ice and snow cover has slowed the west - to - easterly component of the jet stream, thereby enhancing the north - to - south waviness of the jet, which leads to the creation of more stagnant or «
blocked» weather patterns.
«And we have a theory relating Arctic
sea ice loss to
blocking systems of the kind that steered Hurricane Sandy into the coast.»
There is credible peer - reviewed scientific work by leading climate scientists, published more than a decade ago, that hypothesized that precisely this sort of
blocking pattern would become more frequent with disappearing Arctic
sea ice.
So it seems quite clear that there is a potential connection, in a statistical sense, between human - caused global warming, declining Arctic
sea ice, and the anomalous
blocking pattern this winter that has added to other factors we know are tied to human - caused climate change (warmer temperatures and increased soil evaporation, and decreased winter snowpack and freshwater runoff) to produce the unprecedented drought this year in California.
Like corks in a bottle, the two glaciers
block ice flow and keep nearly 10 % of the
ice sheet from draining into the
sea.
Well obviously I meant using the
blocks of
sea ice to hold back the dirty, despicable, awful Antarctic land
ice.
In the near term, the
ice island could
block the southward flux of
sea ice through Nares Strait.
Observed
blocking trends are diagnosed to test the hypothesis that recent Arctic warming and
sea ice loss has increased the likelihood of
blocking over the Northern Hemisphere.