Sentences with phrase «southern ocean influence»
Researchers have long known the region is crucial in the uptake of atmospheric CO2 and that biological processes in the Southern Ocean influence the global ocean system via northward flowing currents.
https://www.sciencedaily.com/ Not exact matches
For now, the new research does help confirm «the fact the Southern Ocean is a major influence on the evolution of Antarctica,» Rignot noted, even if the exact mechanisms driving that influence are still not well understood.
«Southern Ocean: Reconstructing environmental conditions over the past 30,000 years: Sea - ice zone has a major influence on the ecosystem.»
In addition, global sea level can fluctuate due to climate patterns such as El Niños and La Niñas (the opposing phases of the El Niño Southern Oscillation, or ENSO) which influence ocean temperature and global precipitation patterns.
The Atlantic Multidecadal Oscillation (AMO), Pacific Decadal Oscillation (PDO), North Atlantic Oscillation (NAO), and El Niño - Southern Oscillation (ENSO) have all been found to significantly influence changes in surface air temperature and rainfall (climate) on decadal and multi-decadal scales, and these natural ocean oscillations have been robustly connected to changes in solar activity.
No doubt the southern ocean, featured strongly by Hansen et al, plays an important role, but data there are poor, and change is not well known; in particular the recent hiatus in global warming greatly influences any observations, which can therefore be quite misleading wrt trends.
The evolution of El Niño - Southern Oscillation (ENSO) variability can be characterized by various ocean - atmosphere feedbacks, for example, the influence of ENSO related sea surface temperature (SST) variability on the low - level wind and surface heat fluxes in the equatorial tropical Pacific, which in turn affects the evolution of the SST.
The aim of the C - SIDE working group is to reconstruct changes in sea - ice extent in the Southern Ocean for the past 130,000 years, reconstruct how sea - ice cover responded to global cooling as the Earth entered a glacial cycle, and to better understand how sea - ice cover may have influenced nutrient cycling, ocean productivity, air - sea gas exchange, and circulation dynaOcean for the past 130,000 years, reconstruct how sea - ice cover responded to global cooling as the Earth entered a glacial cycle, and to better understand how sea - ice cover may have influenced nutrient cycling, ocean productivity, air - sea gas exchange, and circulation dynaocean productivity, air - sea gas exchange, and circulation dynamics.
Roemmich et al (2007) suggest that mid-latitude gyres in all of the oceans are influenced by decadal variability in the Southern and Northern Annular Modes (SAM and NAM respectively) as wind driven currents in baroclinic oceans (Sverdrup, 1947).
For now, the new research does help confirm «the fact the Southern Ocean is a major influence on the evolution of Antarctica,» Rignot noted, even if the exact mechanisms driving that influence are still not well understood.
If we omit tropics with strong ENSO influence and southern extratropics with questionable coverage, the drop in NH extratropics is shaping to be a pretty steep one: oceans only (Pacific, Arctic and Atlantic 30 - 90N) oceans + surface stations per HadCRUT
Linear trends are particularly sensitive to the periods being analyzed [Lyman, 2012], and over such a short 8 year interval, changes in upper OHC can be strongly influenced by fluctuations in the state of the El Niño - Southern Oscillation (ENSO)[Roemmich and Gilson, 2011] and other short - term variations in the ocean state.
Strong El Niño / Southern Oscillation events have major impacts on phytoplankton, fisheries, marine birds and mammals and are striking examples of climatic influences on ocean biology.
Prof. Curry, perhaps you would be kind enough to reconcile the claim in your written testimony that increasing Antarctic sea ice extent as reported in the AR5 WGI report weakens the case for attributing most of the warming to human influences can be reconciled with your 2010 PNAS paper, Accelerated warming of the Southern Ocean and its impacts on the hydrological cycle and sea ice the abstract of which reads:
A new Indonesian coral - based record of surface ocean salinity shows that the location of the most significant hydroclimatic feature in the Southern Hemisphere, the South Pacific Convergence Zone (SPCZ), a band of high clouds and precipitation, influences a major current in the far western Pacific Oocean salinity shows that the location of the most significant hydroclimatic feature in the Southern Hemisphere, the South Pacific Convergence Zone (SPCZ), a band of high clouds and precipitation, influences a major current in the far western Pacific OceanOcean.
They are called the Southern and Northern Annular Modes — and no one has moved away from surface pressure at the poles influencing storm tracks and ocean currents in both Hemispheres.
discover the environmental influence on seabird populations across the Southern Ocean and in Commonwealth Bay
The surrounding Southern Ocean has an enormous influence on Antarctica, isolating the continent from the rest of the planet.
Alley acknowledged that the IPCC's sea level rise estimate «is well on the optimistic low - rise side of the possible outcomes,» and added that «the estimates in the new paper of freshening, and discussion of stabilization of the southern ocean and influences on precipitation, are interesting and important.»
Further affirmation of the reality of the warming is its spatial distribution, which has largest values at locations remote from any local human influence, with a global pattern consistent with that expected for response to global climate forcings (larger in the Northern Hemisphere than the Southern Hemisphere, larger at high latitudes than low latitudes, larger over land than over ocean).
How does internal variability influence the ability of CMIP5 models to reproduce the recent trend in Southern Ocean sea ice extent?
Rain is influenced both by local thermodynamic factors, such as a warmer ocean, and dynamic factors far away, such as the El Niño Southern Oscillation in the tropical Pacific.