The latest image from the Mars Express orbiter, just released by the European Space Agency, was taken on the 19th June, 2017 and shows a rare upside - down, wide - angle view of Mars with its icy northern
polar cap at the bottom.
Not exact matches
The canals run
at their northern ends into dark spots
at the edge of the
polar cap.
It appears that much
at least of the surface of Mars has two seasons of vegetal growth, the one quickened by the north
polar cap, the other by the south.
The north
polar hood is visible as the dark
cap on the moon's cloud layer
at the top of Titan in this image and the south
polar vortex is visible as the bright feature
at the bottom.
And
at some point an auroral «substorm» is triggered: the particles are snapped back toward Earth, and flow into the
polar caps — on the planet's nightside.
Although water ice was known to exist
at the
polar caps of Mars (see ScienceNOW, 28 May, 2002), Mars Express has now observed its spectroscopic signature for the first time.
Drawing on odd, icy - looking landforms in earlier images, he and colleagues proposed in 2003 that in the geologic past, snow - fed glaciers and ice fields had covered much of the lower latitudes of Mars
at the expense of the
polar ice
caps (Science, 11 April 2003, p. 234).
Although scientists have analysed gases from tiny bubbles trapped in ice cores drilled in
polar ice
caps, there are doubts about how closely the composition of the bubbles matches that of the atmosphere
at the time they were trapped (see New Scientist, Science, 22 August).
Soot has already been implicated in the melting of the
polar ice
caps, and heating of the atmosphere over India was directly measured in 2007 by Veerabhadran Ramanathan of the Scripps Institution of Oceanography
at the University of California, San Diego, and his colleagues.
Our study suggests that
at medium sea levels, powerful forces, such as the dramatic acceleration of
polar ice
cap melting, are not necessary to create abrupt climate shifts and temperature changes.»
* The late - summer
polar ice
cap, already
at historic lows today, would shrink only another quarter and hold steady by century's end, instead of melting by more than three - quarters with no let - up in sight.
After downloading a few files from his site and depositing them in my Celestia folder, I found myself staring
at a blue planet, cloud formations swirling across its surface, its vast oceans punctuated with landmasses and
polar ice
caps.
For reasons we don't entirely understand yet, Mars lacks this protection and possesses only remnants of a magnetic field
at its
polar ice
caps.
There were extensive
polar ice
caps at intervals from 350 to 260 million years ago, during the Carboniferous and early Permian Periods, associated with the Karoo Ice Age.
Now, if you have all this very cold, nearly freezing water surrounding these ice
caps, sucking up carbon dioxide out of the
polar atmosphere,
at nearly the highest possible rate, 30 times faster than oxygen, and 70 times faster than nitrogen, doesn't it stand to reason that the air that remains might just have a lot less carbon dioxide in it than the atmosphere across the rest of the planet?
The other is one I picked up
at Good Will that was invented by someone locally and apparently shopped around to game companies unsuccessfully - it's a collaborative game where you and your fellow game players strive to prevent environmental disasters such as endangered species, melting
polar ice
caps, and oil spills.
Instead of melting ice
caps and imperiled
polar bears, AHN / VHS» quiet, small works show — which features drawings, prints, video and mixed media — focuses on the daily weather data recorded
at Long Island City's artist - run SP Weather Station....»
It's tiring just to watch alarmists jump through all their inelegant hoops and jump
at very thin threads (what next, after
polar ice
caps aren't melting?).
Dr. Will Chapman's Cryosphere Today web page offers an archive of daily
polar sea ice
cap concentrations (1979 — present)
at:
We do not have to lose the
polar ice -
caps for disastrous sea - level rise to occur, given the number of major cities situated
at or close to sea - level.
On climate change, the bulletin scientists say it is worsening: after flattening out for some years, global greenhouse gas emissions have resumed their rise, and the levels of the
polar ice
caps are
at new lows.
One thing which would be obvious is Earth which no longer have permanent
polar ice
caps, but not as readily obvious would the lack of any snowing on Earth
at anytime.
I've looked
at the surface latent and sensible heat flux averaged for a
polar cap (north of 70N).
«Gallo is as unchangeable as the ice
caps used to be, and he blinks
at Inglis in confusion while booming nonsense to his listeners with the voice of God: «We've got more
polar bears than we've ever had before!»
«This is not just about disappearing
polar bears and melting ice
caps,» McCarthy said in a speech
at EPA headquarters.
This snowpack accumulation near the poles, which gets its water via the Arctic and Antarctic oceans, that in turn rob it from equatorial latitudes of our oceans, also results in a reduction in the earth's spin axis moment of inertia and causes the spin rate to increase as evidenced in the recent history of the rate
at which Leap Seconds are added to our calendar (see Wysmuller's Toucan Equation for more on this evidence that during this warm time with much greater
polar humidity, earlier seasonal, later seasonal and heavier snows are beginning to move water vapor from the oceans to the poles to re-build the
polar ice
caps and lead us into a global cooling, while man - made CO2 continues to increase http://www.colderside.com/faq.htm).
The strongest evidence in support of climate change is the melting of the
polar ice
caps, Langcake acknowledges, noting the temperature in Antarctica rose by 2.5 degrees centigrade between 1945 and 1995 and a Norwegian study supporting the idea of a rapidly accelerating melt
at both poles, but claims this theory may not be borne out over a longer period.
Satellite photographs show that the
polar ice
cap at the time of maximum summer melt — about now — has been reduced by about 6 percent since 1980.
«
At medium sea levels, powerful forces − such as the dramatic acceleration of
polar ice
cap melting − are not necessary to result in abrupt climate shifts and associated drastic temperature changes.»
With virtually all CAGW projections diverging further from reality, CAGW's survival depends on propagandizing lies and half - truths: the «97 %» meme, severe weather, sea levels, global warming trends, ocean acidification,
polar bear and penguin populations,
polar ice
caps, etc., are all supposedly worsening
at «unprecedented» rates.
If we have, indeed, only had
polar ice for 20 % of the last 6 - million years (from Ian Plimer), then regression - to - the - mean dictates betting on «up» would likely yield better odds
at times when we have ice
caps to ponder.
Satellite composite image of Antarctica, showing the largest know ice
cap ever
at Earth's South Pole And now about the
Polar Bears, those stories and the «documentary» film about the death of a
polar bear are not factual.
They say this will cause melting
at the
polar ice
caps, sea levels to rise and weather patterns to change bringing floods, famines and violent storms, putting millions of lives
at risk.
After all,
at the same time the Arctic was melting, the Antarctic Ice
Cap at the South Pole was setting a record for the greatest extent of
polar ice in observed history and
at the same time South America and much of the Southern Hemisphere was experiencing the coldest and longest winter in
at least 50 years.
Although arctic experts said there were many signs of warming, including a thinning and shrinking of the
polar ice
cap, there was no way to link a patch of sun - dappled water
at the pole to climate change.
It was supposed to show how amazingly navigable the Arctic Circle has become now that climate change is supposedly melting the
polar ice
caps at a dangerous and unprecedented rate.
There are zones where new deep water is formed, mostly
at the edges of the
polar ice
caps.
For this study, the area - weighted
polar cap geopotential height and air temperature anomalies (PCH and PCT) were computed for the months December through February using the National Centers for Environmental Prediction (NCEP) reanalysis
at global 2.5 ° resolution for latitudes north of 65 ° N, using the period 1950 to 2016 for analysis69.