Not exact matches
The melting of the
arctic ice and the Greenland glaciers along with the warming of the
ocean will raise sea levels and flood some of the world's most populous and fertile regions, the deltas of the great rivers.
As
ice melts and shipping becomes easier and at some point, oil drilling in the
arctic ocean will probably increase, Having a strong military will benefit Russia.
The island, which had detached itself from the
ice shelf on Ellesmore Island in the Canadian
arctic archipelago, was used as a laboratory for seismic studies of the
Arctic Ocean floor, as well as charting currents, pollution, winds and
ice structure.
With the
ice cap in place there is essentially no cooling of the
arctic ocean.
Net result,
arctic ocean cools without
ice cap, warms with it, therefore negative feedback.
Dr Coward's question was «Has an
ice free
arctic ocean been modelled?»
Ocean levels have fallen,
arctic ice has increased, and so on.
Tags:
arctic climate climate change environment global warming
ice methane
ocean ocean acidification science scientists
Since IPCC (2001) the cryosphere has undergone significant changes, such as the substantial retreat of
arctic sea
ice, especially in summer; the continued shrinking of mountain glaciers; the decrease in the extent of snow cover and seasonally frozen ground, particularly in spring; the earlier breakup of river and lake
ice; and widespread thinning of antarctic
ice shelves along the Amundsen Sea coast, indicating increased basal melting due to increased
ocean heat fluxes in the cavities below the
ice shelves.
The
ocean heat content change is from this section and Levitus et al. (2005c); glaciers,
ice caps and Greenland and Antarctic Ice Sheets from Chapter 4; continental heat content from Beltrami et al. (2002); atmospheric energy content based on Trenberth et al. (2001); and arctic sea ice release from Hilmer and Lemke (200
ice caps and Greenland and Antarctic
Ice Sheets from Chapter 4; continental heat content from Beltrami et al. (2002); atmospheric energy content based on Trenberth et al. (2001); and arctic sea ice release from Hilmer and Lemke (200
Ice Sheets from Chapter 4; continental heat content from Beltrami et al. (2002); atmospheric energy content based on Trenberth et al. (2001); and
arctic sea
ice release from Hilmer and Lemke (200
ice release from Hilmer and Lemke (2000).
Seems this might hold for larger scale events, such as the
arctic ice melting (i.e., there would be more warming in the
arctic ocean in our current times, except some of the «warming» energy is going into the melting process rather than warming).
I think what Alastair is alluding to is the fact that, say by 2050 when the
arctic ocean will conceivably be
ice - free in the summer, the atmosphere will have a much higher relative humidity than it has currently because of the open air = water interface, so this will have a magnifying effect beyond just the feedback from increased CO2.
# 90 John E. Pierson» I have no idea what role this might play in a world with an
ice free
arctic ocean.»
That being said, I have no idea what role this might play in a world with an
ice free
arctic ocean.
An
ice free
arctic ocean will comprise a new ecological niche.
I visualized
arctic sea
ice, as that is affected by «the thermostat», while
ocean acidification is not.
Lower Atmosphere is warming,
oceans upper layers are warming,
arctic summer sea
ice is disappearing, WAIS and Greenland are both losing mass annually and the majority of the earths glaciers are losing mass too.
I see GE as a short term band - aid to be used to prevent the demise of
arctic sea
ice and permafrost while the
oceans et al absorb some of our excess CO2.
I should have said that the paleoclimatologists who study sea floor sediments are pretty confident that the high lattitude
arctic ocean has not been
ice free for many hundreds of thousands of years.
The methane discussion above fascinates, I do nt think we know everything about it, since a lot of it is under sea
ice at bottom of
arctic ocean.
The rise of CO2 from 270ppm to now over 400ppm, the extent of equatorial and sub tropical deforestation, the soot deposits on the polar
ice caps, the increase in atmospheric water vapour due to a corresponding increase in
ocean temps and changes in
ocean currents, the extreme
ice albedo currently happening in the
arctic etc, etc are all conspiring in tandem to alter the climate as we know it.
Apart albedo, shouldn't we expect a classical water vapour feedback (and so DLF forcing) as
arctic ice is melting and
arctic seas /
ocean warming?
The
arctic will be
ice free in summer within 5 - 6 years, progressing rapidly to all the remaining 9 months of the year as the
arctic ocean continues to warm.
and how about nasa's recent report of the apparent
arctic ocean gyre reversal to clockwise that is underway — that the counterclockwise gyre of the
arctic ocean rotation (since 1989) which apparently also been largely responsible for centrifigally pushing
arctic ice into warmer waters, speeding melting — should now predictably result in increasing amounts of
ice due to the centripetal pull of the
ice toward the north pole?
quote loss of sea
ice in the
arctic leads to increased
ocean heat loss to the atmosphere resulting in more snow elsewhere.
Canadian
Ice Service, 4.7, Multiple Methods As with CIS contributions in June 2009, 2010, and 2011, the 2012 forecast was derived using a combination of three methods: 1) a qualitative heuristic method based on observed end - of - winter arctic ice thicknesses and extents, as well as an examination of Surface Air Temperature (SAT), Sea Level Pressure (SLP) and vector wind anomaly patterns and trends; 2) an experimental Optimal Filtering Based (OFB) Model, which uses an optimal linear data filter to extrapolate NSIDC's September Arctic Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
Ice Service, 4.7, Multiple Methods As with CIS contributions in June 2009, 2010, and 2011, the 2012 forecast was derived using a combination of three methods: 1) a qualitative heuristic method based on observed end - of - winter
arctic ice thicknesses and extents, as well as an examination of Surface Air Temperature (SAT), Sea Level Pressure (SLP) and vector wind anomaly patterns and trends; 2) an experimental Optimal Filtering Based (OFB) Model, which uses an optimal linear data filter to extrapolate NSIDC's September Arctic Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
ice thicknesses and extents, as well as an examination of Surface Air Temperature (SAT), Sea Level Pressure (SLP) and vector wind anomaly patterns and trends; 2) an experimental Optimal Filtering Based (OFB) Model, which uses an optimal linear data filter to extrapolate NSIDC's September
Arctic Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR) prediction system that tests ocean, atmosphere and sea ice predicto
Ice Extent time series into the future; and 3) an experimental Multiple Linear Regression (MLR) prediction system that tests
ocean, atmosphere and sea
ice predicto
ice predictors.
Just recently a «scientist» at the German hyper alarmist PIK «found out» that the (temporary) loss of sea
ice in the
arctic leads to increased
ocean heat loss to the atmosphere resulting in more snow elsewhere.
But in both
arctic and antarctic
ice cores, we see similar bands, because the snow in Greenland all comes from the stratosphere, not the
Arctic Ocean.
Bob Tisdale says: January 10, 2011 at 3:05 pm Manfred says: «Just recently a «scientist» at the German hyper alarmist PIK «found out» that the (temporary) loss of sea
ice in the
arctic leads to increased
ocean heat loss to the atmosphere resulting in more snow elsewhere.
Chris V. CO2 goes up, temp goes down,
oceans cool, sea levels decrease,
arctic sea
ice is within 1979 -2000 mean, AGW theory of catastrophic warming is B U S T... Even the fraudulent manipulation of the GISS data set does not change that.
at some point the
ocean temperature will not be warm enough to keep the
arctic sea
ice melted and the sea
ice will increase and halt the cooling.
Hansen got the warming right in the 1980s, the hockey stick is validated by numerous oth alternative research methods and
ocean heat content and
arctic ice continue to rise and shrink as predicted from the understanding of the physical effect of CO2, as have air temperatures in the area.
Also, it seems the condition of more exposed and warmer
arctic waters also adds to the moisture content, regardless of how much
ocean was covered by
ice at the beginning of the cycle.
GOAL 1: Examine the historical evolution of the
arctic ice -
ocean system from 1948 to 2003 to understand the large - scale changes that have occurred in sea ice and the upper Arctic Ocean over this time pe
ocean system from 1948 to 2003 to understand the large - scale changes that have occurred in sea
ice and the upper
Arctic Ocean over this time pe
Ocean over this time period.
The project will also analyze changes in oceanic circulation and processes in an
ice - depleted
Arctic Ocean, and in its interactions with the sub
arctic oceans.
GOAL 2: Project a diminished
arctic sea -
ice cover with multiple warming scenarios and to examine key linkages among atmospheric forcing, sea -
ice processes, and oceanic processes in an
ice - diminished
Arctic Ocean and the adjacent seas.
Sea
ice is lost due to increasing
ocean heat transport into the
arctic and the resulting loss of
ice causes the atmosphere to warm.
This so - called non-warming of the deep
ocean likely has quite a bit to do with dramatically declining
arctic ice cover.
And remember, the satellite data are one small part of a vast amount of data that overwhelmingly show our planet is warming up: retreating glaciers, huge amounts of
ice melting at both poles, the «death spiral» of
arctic ice every year at the summer minimum over time, earlier annual starts of warm weather and later starts of cold weather, warming
oceans, rising sea levels,
ocean acidification, more extreme weather, changing weather patterns overall, earlier snow melts, and lower snow cover in the spring...
There was a warm period about three thousand years ago with an open
arctic that replenished
ice, then it got cold, polar
oceans froze, snowfall diminished and
ice depleted until it got warm in the Roman warm period about two thousand years ago.
Polar bears,
arctic summer sea
ice, regional droughts and floods, coral bleaching, hurricanes, alpine glaciers, malaria, etc., all depend not on GATA but on a huge number of regional variables including temperature, humidity, cloud cover, precipitation, and direction and magnitude of wind and the state of the
ocean.
The
arctic opened and replenished the
ice and it got cold, polar
oceans froze, snowfall diminished and
ice depleted until it got warm in the medieval warm period.
Latent heat flux is 4W / m2 over the
arctic ocean and I'm pretty frickin sure that already small amount is predominantly over open
ocean not
ice ponds.
THERE HAS BEEN A WARMING TREND FROM THE 70s THRU THE LATE 90s,... accompanied by other changes tied to a warming trend (record low
arctic sea
ice extent & thickness, retreating glaciers, retreating snow lines, warming
ocean surface temps, increases in sea height, de-alkalinizing
oceans).
Your argument is that the warming of the
ocean, the warming of the atmosphere, the warming of fresh waters dumping into the
arctic has nothing to do with
ice melt.
LIA wasn't GLOBAL cooling; but colder in Europe, north America — because
Arctic ocean had less
ice cover - > was releasing more heat / was accumulating - > radiating + spreading more coldness — currents were taking that extra coldness to Mexican gulf — then to the Mediterranean — because Sahara was increasing creation of dry heat and evaporating extra water in the Mediterranean — to top up the deficit — gulf stream was faster / that was melting more
ice on
arctic also as chain reaction — Because Mediterranean doesn't have enough tributaries, to compensate for the evaporation deficit.
For his early forecast of the September 2015 sea
ice extent, Bosse used two variables: The Heat Content of the
arctic ocean northward 65 deg.
The
arctic temperatures and
arctic ice extent varies in a very predictable 60 - 70 year cycle that relates to
ocean cycles which are likely driven by solar changes.
If it was supposed to melt all the polar
ice why is it that even during summer months the
arctic ocean has been unnavigatable the past 2 yrs?
when the
ocean is warm and the
arctic is open, it snows more and moves water mass from the
oceans and adds
ice mass on land and the axis does shift.