Sentences with phrase «sea change in conditions»

When Arctic researchers start investing in floating buoys to study polar ocean dynamics (instead of devices that sit on the sea ice), that's surely a sign of a sea change in conditions and thinking.

Not exact matches

A sea change in economic conditions has pushed interest rates considerably lower than they were in the past and are likely to stay there for a while, San Francisco Fed President John Williams said Friday.

One is changed environmental conditions for a discrete subpopulation of the original population, such as when ice ages cause dramatic changes in sea levels, cutting species into subgroups.

Natural ecosystems also can, in many cases, keep pace with sea level rise, while built infrastructure does not adapt to changing conditions.

Climate conditions around Ardley Island have been generally favourable for penguins over the last 7,000 years and the team had expected the local population to show minor fluctuations in response to changes in climate or sea ice.

During the later period, when there was less sea ice, the whales dove significantly longer and deeper than in the earlier period — presumably in search of prey as the animals, in turn, changed their habits because of different ocean conditions brought on by sea ice loss.

In previous years, Antarctic sea ice hit record highs, potentially due to changing ocean conditions linked to the melting of land - bound glaciers.

Because huge expanses of the deep ocean will be exposed to changing environmental conditions as a result of climate change (Mora et al., 2013; this study), the societal impacts of climate change in the deep sea will undoubtedly be widespread, complex and dynamic.

Current changes in the ocean around Antarctica are disturbingly close to conditions 14,000 years ago that new research shows may have led to the rapid melting of Antarctic ice and an abrupt 3 - 4 metre rise in global sea level.

Long - term (decadal and multi-decadal) variation in total annual streamflow is largely influenced by quasi-cyclic changes in sea - surface temperatures and resulting climate conditions; the influence of climate warming on these patterns is uncertain.

We call this the Charney climate sensitivity, because it is essentially the case considered by Charney (1979), in which water vapor, clouds and sea ice were allowed to change in response to climate change, but GHG (greenhouse gas) amounts, ice sheet area, sea level and vegetation distributions were taken as specified boundary conditions.

If you are the captain of a 1000 - ton publishing ship, it is a great deal harder to quickly turn that ship in a multitude of directions, especially when the sea conditions are constantly changing.

While we'll always do our best to be on time, our schedule is subject to change in case of harsh sea conditions.

California sea lions, in particular, have been hit hard by changing ocean conditions in recent years in what has been called a «crisis.»

Weather and sea conditions can change quickly, so be prepared and travel in a group.

After initial hopes that the Cayman Turtle Farm would make meaningful changes to the distressing conditions in which sea turtles are kept, WSPA is disappointed to report that little action has been taken.

This together with the reduced sea ice conditions along the west coast of the AP (another climate change effect), is undoubtedly increasing the ship traffic in the area — and with it the likelihood of iceberg collisions.

True enough, they might run out of ice — but under what sea level rise conditions do we regard 50 - 70 cm as loose change, down in the noise level?

There is not a single example of a simulation of the coupled ocean - atmosphere - sea ice system that spontaneously generates a change as big as doubling CO2, in Holocene type conditions.

Hopefully, this bodes well for sea ice survival this summer, but as you will likely see if you look in once in awhile, the surface conditions change remarkably during the summer, and from the appearance you may appreciate the associated changes in the fraction of solar heating absorbed by the ice.

«However, summer sea ice conditions in the southern Beaufort Sea have changed considerably over the last 20 to 30 years, such that there is much more open water during summer and fasea ice conditions in the southern Beaufort Sea have changed considerably over the last 20 to 30 years, such that there is much more open water during summer and faSea have changed considerably over the last 20 to 30 years, such that there is much more open water during summer and fall.

As I've written before, while 20 years of intensifying inquiry has greatly reinforced confidence that humans are influencing climate in ways that could profoundly disrupt human and natural affairs, it has not substantially clarified climate outcomes that matter most: how fast and far temperatures and seas will rise in the next 100 years, how hurricanes will respond to warming, how regional conditions will change.

Science Daily: Aside from rising sea levels, many climate change models predict that in the future, the planet's temperature and weather will become increasingly erratic with wild, unpredictable storms and fluctuating conditions.

The accuracy of the data is questionable, the assumption of the initial conditions questionable and comparing oceans to land plus oceans also would add uncertainty, but decreasing ocean energy imbalance makes sense when you consider the change in the rate of sea level rise.

For the sea of humanity that is increasingly feeing the changing conditions resulting from a warmer climate brought on by anthropogenic interference, it is clear what must be done — reduce emissions dramatically in the developed countries.

«We are off to a great start collecting a timely and unique dataset to help better understand the potential influence of clouds on the Arctic climate as sea ice conditions change,» said William Smith, ARISE principal investigator at NASA's Langley Research Center in Hampton, Virginia.

These new sea ice proxy records are needed (1) to fully prove the scenarios of a succession from an extended ice shelf to polynya / open - water conditions (cf., Fig. 6), (2) to reconstruct in more detail the changes in sea ice cover for early, middle and late LIG intervals characterized by very different external forcings and related internal feedback mechanisms, and (3) to allow a more fundamental proxy data / modeling comparison that results in model improvements and better reproduction of the LIG climatic evolution and prediction of future climatic scenarios20, 21,22,23, 64.

I think it's too early to say if this is purely down to specific weather conditions, or whether the sea ice in the Antarctic is starting to respond to climate change in an analogous fashion to its boreal cousin.

The glaciers are a dynamic entity, like sea ice, etc., and are constantly in flux with the constantly changing conditions around them.

The vulnerability of marine species to changes in sea ice will depend on the exposure to change, which will vary by location, as well as the sensitivity of the species to changing environmental conditions and the adaptive capacity of each species.

Continued melt and / or strong northerly winds are required for a change in conditions; drift of multi-year ice from the Lincoln Sea through Nares Strait is expected by the end of the month.

Changing sea ice conditions will impact indigenous livelihoods, and changes in resources, including marine mammals, could represent a significant economic loss for many local communities.

Coastal management must instead rest upon accurate knowledge of local geological, meteorological and oceanographical conditions, including, amongst other things, changes in local relative sea level.

Though there can be significant differences in regional surface impacts between one SSW event and another, the typical pattern includes changes in sea level pressure resembling the negative phase of the North Atlantic Oscillation (NAO) / Arctic Oscillation (AO), (representing a southward shift in the Atlantic storm track), wetter than average conditions for much of Europe, cold air outbreaks throughout the mid-latitudes, and warmer than average conditions in eastern Canada and subtropical Asia (see figure below, left panel).

As sea ice declines, it becomes thinner, with less ice build - up over multiple years, and therefore more vulnerable to further melting.15 Models that best match historical trends project northern waters that are virtually ice - free by late summer by the 2030s.25, 26,12 Within the general downward trend in sea ice, there will be time periods with both rapid ice loss and temporary recovery, 27 making it challenging to predict short - term changes in ice conditions.

«Neumann and Hearty (1996) considered the transition from warmer - than - present «greenhouse» conditions during sub-stage 5e to mid-glacial «icehouse» conditions of 5d to be a climatic «madhouse» in the Bahamas on the basis of geologic evidence of rapid sea - level changes, dune building, and intense storms at that time.»

Though two marine - derived drugs, one for treating cancer and the other for pain control, are on the market and 25 others are under development, the fungus growing on seaweed, bacteria in deep sea mud and sea fans that could produce life - saving medicines are under assault from changing the ocean conditions.

Now we have poor hunting conditions in the Bering Strait touted as evidence that «walrus migration patterns have changed» with the implication that this is because ``... the past eight years have had the eight lowest amounts of summer sea ice on record» due to man - made global warming.

Then, by analysing the sediments for chemical fossils made by certain microscopic plants that live in sea ice and the surrounding oceans, Knies and his co-workers were able to fingerprint the environmental conditions as they changed through time.

The energy system is both a source of emissions that lead to global warming and it can also be directly affected by climate change: through changes in our energy consumption patterns, potential shutdowns of offshore oil and gas production, changing ice and snow conditions in the oil production regions of Alaska, changing sea ice conditions in the Arctic Ocean and the implications for shipping routes, and impacts of sea - level rise on coasts, where so much of our energy facility infrastructure is located.

There are secular changes in cloud associated with variable sea surface temperature — that vary from weeks to millennia creating warmer or cooler surface conditions.

Though the formation of the 700 square - kilometer iceberg could be a purely natural event — the result of a floating ice tongue growing too long and losing its balance on the sea — some scientists suspect that changes in Pine Island Glacier are due to changing conditions below.

This is predicted to produce changes such as the melting of glaciers and ice sheets, more extreme temperature ranges, significant changes in weather conditions and a global rise in average sea levels.

Background mixing in the deep ocean is related to internal wave energy, which in ice - covered seas has been observed to be lower than in ice - free oceans, and to change with time and bathymetric conditions [Levine et al., 1985 and 1987; Halle and Pinkel, 2003; Pinkel, 2005].

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 icIn 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 icin 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 icin the frequency of blocking events that could be tied to changes in global warming and / or the declines in Arctic sea icin global warming and / or the declines in Arctic sea icin Arctic sea ice.

Based on the understanding of both the physical processes that control key climate feedbacks (see Section 8.6.3), and also the origin of inter-model differences in the simulation of feedbacks (see Section 8.6.2), the following climate characteristics appear to be particularly important: (i) for the water vapour and lapse rate feedbacks, the response of upper - tropospheric RH and lapse rate to interannual or decadal changes in climate; (ii) for cloud feedbacks, the response of boundary - layer clouds and anvil clouds to a change in surface or atmospheric conditions and the change in cloud radiative properties associated with a change in extratropical synoptic weather systems; (iii) for snow albedo feedbacks, the relationship between surface air temperature and snow melt over northern land areas during spring and (iv) for sea ice feedbacks, the simulation of sea ice thickness.

Such weather patterns, which can feature relatively mild conditions in the Arctic at the same time dangerously cold conditions exist in vast parts of the lower 48, may be tied to the rapid warming and loss of sea ice in the Arctic due, in part, to manmade climate change.

And since polar bears of the Barents Sea and adjacent Arctic areas appear to have survived this change to Holocence Thermal Maximum conditions, it challenges the notion that recent warming has been (or will be) too fast to allow polar bears to survive without huge changes in their present distribution (Amstrup et al. 2007).

It is important to note that the amplitude of these millennial - scale changes in sea - surface conditions far exceed those observed at the end of the 20th century.»

The combat these changes, the report says that the should plan to keep air - conditioned cooling centers open longer during heat waves, move critical equipment in city buildings above sea level, and incorporate these climate change effects into design of new buildings.