Sentences with phrase «in changing ocean conditions»

Not exact matches

«Volcanic aerosols in the stratosphere absorb infrared radiation, thereby heating up the stratosphere, and changing the wind conditions subsequently,» said Dr. Matthew Toohey, atmospheric scientist at GEOMAR Helmholtz Centre for Ocean Research Kiel.

Now, a 15 - year, 30 - nation research collective called Geotraces is embarking on an ambitious global survey of ocean chemistry to quantify trace elements and shed light on how chemical concentrations fluctuate in response to changing environmental conditions.

However, while rangeomorphs were highly suited to their Ediacaran environment, conditions in the oceans continued to change and from about 541 million years ago the «Cambrian Explosion» began — a period of rapid evolutionary development when most major animal groups first appeared in the fossil record.

Back in the lab, they will analyze the mosaics to see how the reefs are changing over time, and how the variation of ocean conditions and human activities impact each reef.

While Antarctic ice shelves are in direct contact with both the atmosphere and the surrounding oceans, and thus subject to changes in environmental conditions, they also go through repeated internally - driven cycles of growth and collapse.

These findings from University of Melbourne Scientists at the ARC Centre of Excellence for Climate System Science, reported in Nature Climate Change, are the result of research looking at how Australian extremes in heat, drought, precipitation and ocean warming will change in a world 1.5 °C and 2 °C warmer than pre-industrial condiChange, are the result of research looking at how Australian extremes in heat, drought, precipitation and ocean warming will change in a world 1.5 °C and 2 °C warmer than pre-industrial condichange in a world 1.5 °C and 2 °C warmer than pre-industrial conditions.

This in turn changes the prevailing winds to bring colder conditions over the northern oceans.

The rapid northerly shifts in spawning may offer a preview of future conditions if ocean warming continues, according to the new study published in Global Change Biology by scientists from the Pacific States Marine Fisheries Commission, Oregon State University and NOAA Fisheries» Northwest Fisheries Science Center.

«Changes in spawning timing and poleward migration of fish populations due to warmer ocean conditions or global climate change will negatively affect areas that were historically dependent on these fish, and change the food web structure of the areas that the fish move into with unforeseen consequences,» researchers wrote.

It then fluctuated around that level, reaching a high of 306,220 in 2012 before declining below the carrying capacity in the years since as ocean conditions changed.

«These conditions will cause changes in phytoplankton growth and ocean circulation around Antarctica, with the net effect of transferring nutrients from the upper ocean to the deep ocean,» said lead author J. Keith Moore, UCI professor of Earth system science.

The study, by an international team of scientists led by the University of Cambridge, examined how changes in ocean currents in the Atlantic Ocean were related to climate conditions in the northern hemisphere during the last ice age, by examining data from ice cores and fossilised plankton shocean currents in the Atlantic Ocean were related to climate conditions in the northern hemisphere during the last ice age, by examining data from ice cores and fossilised plankton shOcean were related to climate conditions in the northern hemisphere during the last ice age, by examining data from ice cores and fossilised plankton shells.

«The species lives in habitats that are exposed to large changes in ocean conditions and have limited scope to avoid these changes.»

The results, published in the journal Nature Geoscience, show how climate events in the Northern Hemisphere were tightly coupled with changes in the strength of deep ocean currents in the Atlantic Ocean, and how that may have affected conditions across the gocean currents in the Atlantic Ocean, and how that may have affected conditions across the gOcean, and how that may have affected conditions across the globe.

A team of biologists from the GEOMAR Helmholtz Centre for Ocean Research Kiel, the Norwegian University of Science and Technology (NTNU) and the University of Florida has now been able to demonstrate with the comb jellyfish Mnemiopsis leidyi that, at least in this type of jellyfish, the mechanism of regeneration can be changed depending on the environmental conditions.

«Changes in ocean conditions that affect fish stocks, such as temperature and oxygen concentration, are strongly related to atmospheric warming and carbon emissions,» said author Thomas Frölicher, principal investigator at the Nippon Foundation - Nereus Program and senior scientist at ETH Zürich.

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.

The findings presented at the Society of Marine Mammalogy's Biennial Conference in San Francisco demonstrate that humpback foraging responds to environmental changes, and illustrates how marine mammals serve as sentinels of ever - changing ocean conditions.

As any sailor knows, conditions at the ocean's surface can change in a moment.

(E) establishes performance measures for assessing the effectiveness of adaptation strategies intended to improve resilience and the ability of natural resources in the coastal zone to adapt to and withstand the impacts of climate change and ocean acidification and of adaptation strategies intended to minimize those impacts on the coastal zone and to update those strategies to respond to new information or changing conditions; and

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

If we look into the ocean, then changes in the vertical temperature profiles may plausibly affect oceanic wave propagation, thus perturbing the conditions to which the delayed mechanism is sensitive.

The open ocean around the atoll was 2 degrees Celsius warmer than usual, but a short - term change in weather conditions pushed temperatures on top of the reef to 6 degrees Celsius above normal.

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.

In the paper Gray makes many extravagant claims about how supposed changes in the THC accounted for various 20th century climate changes («I judge our present global ocean circulation conditions to be similar to that of the period of the early 1940s when the globe had shown great warming since 1910, and there was concern as to whether this 1910 - 1940 global warming would continuIn the paper Gray makes many extravagant claims about how supposed changes in the THC accounted for various 20th century climate changes («I judge our present global ocean circulation conditions to be similar to that of the period of the early 1940s when the globe had shown great warming since 1910, and there was concern as to whether this 1910 - 1940 global warming would continuin the THC accounted for various 20th century climate changes («I judge our present global ocean circulation conditions to be similar to that of the period of the early 1940s when the globe had shown great warming since 1910, and there was concern as to whether this 1910 - 1940 global warming would continue.

This novel approach finds local populations in the North Pacific and Northwest Atlantic are regionally synchronized and strongly correlated to ocean conditions — such that climate models alone explain up to 88 % of the observed changes over the past several decades.

The revolutionary discovery in the 1970s of a thriving complex marine ecosystem around the hydrothermal vents of the Galapagos Rift on the ocean floor of the eastern Pacific forever changed our understanding of habitability showing that life could also arise and flourish in the complete absence of sunlight in conditions that were utterly toxic to any other life forms on Earth.

The researchers discovered that periods of increased radiative forcing could produce drought - like conditions that extended indefinitely and that these conditions were closely tied to prolonged changes in Pacific Ocean surface temperatures.

«Simply put, the shape of the ice sheet and the contact with the ocean makes it likely that these areas respond more pronouncedly to changes in climate boundary conditions — be they atmospheric, oceanic or glaciological.»

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

Life in the ocean is complex and conditions change so quickly.

The conditions of the ocean in our Pacific Coast change every 6 hours drastically from low tide to high tide.

The paleoclimate record (8.2 kyr, and earlier «large lake collapses») shows a dramatic drop in surface temperatures for a substantial period of time when the ocean circulation shuts off or changes, but is that actually what would be expected under these warming conditions?

It's killing fish, crabs and other marine life and leading researchers to believe that a fundamental change may be taking place in ocean conditions in the northern Pacific Oocean conditions in the northern Pacific OceanOcean.

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.

If we look into the ocean, then changes in the vertical temperature profiles may plausibly affect oceanic wave propagation, thus perturbing the conditions to which the delayed mechanism is sensitive.

The oceans, which provide part of the boundary conditions for the atmosphere, also have sufficient time to change appreciably, and the change in the oceanic state must be taken into account.

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.

What you guys will not come clean about however, is that these initial conditions of the ocean / atmosphere also impart a large range of uncertainty on multi-decadal predictions, even though you are invoking changes in boundary values to gain skill.

Small changes in initial conditions drive abrupt and nonlinear change evident in many of the global ocean and atmospheric indices — and indeed in the surface temperature trajectory.

Here's a clue — a tendency toward a more frequent La Nina state, driven specifically by increasing GH gas concentrations (and similar to conditions in the mid-Pliocene), may provide some modulation of tropospheric temperature spikes, but that energy will be advected somewhere (the idea of homogenous dispersion throughout the ocean is absurd), and that somewhere is exactly where we are seeing the biggest changes in the climate right now — the Arctic.

Whether ocean circulation models... neither explicitly accounting for the energy input into the system nor providing for spatial variability in the mixing, have any physical relevance under changed climate conditions is at issue.»

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.

Yet, we explained there is also reasonable basis for concern that a warming world may at least temporarily increase tornado damage including the fact that oceans are now warmer, and regional ocean circulation cycles such as La Nina / El Nino patterns in the Pacific which affect upper atmospheric conditions appear to becoming more chaotic under the influence of climate change.

In some locations, changes in ocean temperatures and atmospheric patterns brought about by El Niño lead to drier conditions, which increases the damage during «fire season»In some locations, changes in ocean temperatures and atmospheric patterns brought about by El Niño lead to drier conditions, which increases the damage during «fire season»in ocean temperatures and atmospheric patterns brought about by El Niño lead to drier conditions, which increases the damage during «fire season».

Here a simple biologically and physically - based model of sapflow potential is used to assess observed changes in sapflow across the Northeastern US from 1980 to 2006; document the correspondence between these observations and independent downscaled atmosphere ocean general circulation model (AOGCM) simulations of conditions during this period; and quantify changes in sapflow potential through 2100.

(E) establishes methods for assessing the effectiveness of strategies and conservation actions taken to assist fish, wildlife, and plant populations, habitats, ecosystems, and associated ecological processes in becoming more resilient, adapt to, and better withstand the impacts of climate changes and ocean acidification and for updating those strategies and actions to respond appropriately to new information or changing conditions;

It seems unlikely that low level clouds — especially marine stratocumulous — would not respond to large scale changes in ocean and atmospheric conditions.

«The extreme winter of 2013/14 is in line with historical trends in wave conditions and is also predicted to increasingly occur due to climate change, according to some of the climate models, with the winter of 2015/16 also set to be among the stormiest of the past 70 years,» says Tim Scott, a lecturer in ocean exploration at Plymouth University, and a co-author of the study.