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  • ==Surface temperature== Surface temperature trends across the Antarctic can be determined using a number of different f
    30 KB (4,676 words) - 18:04, 22 August 2014
  • ...n temperature trend over the Twenty First Century.png|thumb|'''5.6''' Skin temperature trend over Twenty First Century in &ordm;C/decade.]] ..., D03103, doi:03110.01029/02007JD008933.</ref>) ([[:File:Figure 5.6 - Skin temperature trend over the Twenty First Century.png|Figure 5.6]]). All the CMIP3 models
    8 KB (1,217 words) - 15:34, 6 August 2014

Page text matches

  • ...temperature was 1.5&ordm;C, and there were 43 days in which the mean daily temperature exceeded 0&ordm;C. This protracted warming event resulted in flooding of ri
    3 KB (468 words) - 15:33, 6 August 2014
  • ...nce that at peak past interglacial global warmings of 2-3&ordm;C above the temperature in 1900 led to rises of sea level of 4-6 m (e.g. see IPCC, 2007<ref name="I
    16 KB (2,491 words) - 13:16, 22 August 2014
  • #[[Temperature changes in the instrumental period]]
    3 KB (501 words) - 16:48, 6 August 2014
  • ...the projections from the various models to derive various estimates of how temperature may change over land and ocean. Gauging how Antarctic terrestrial and marine biota might respond to rising temperature is also a major challenge, as is gauging the response of ocean biota to oce
    5 KB (788 words) - 16:49, 6 August 2014
  • ...rovide information from oxygen isotopes in plankton shells about the water temperature, and information from carbon isotopes about the water flux. This can be lin ...e ice provide valuable archives of change in past atmospheric composition, temperature, precipitation, major trace chemistry and other environmental parameters su
    17 KB (2,554 words) - 16:45, 6 August 2014
  • ##[[Temperature changes in the instrumental period]]
    4 KB (504 words) - 17:51, 21 August 2014
  • ...cess continues today and is set to accelerate under predicted increases in temperature. However, in 2007 the Intergovernmental Panel on Climate Change noted conti
    21 KB (3,294 words) - 15:33, 6 August 2014
  • ..., making it impossible to correct for spatial variations in emissivity and temperature. Qualitative analysis can be done: for example, a four-year average of the
    22 KB (3,536 words) - 13:25, 22 August 2014
  • #[[Temperature changes over the 21st century]]
    410 B (55 words) - 15:33, 6 August 2014
  • ...., Ohmura, A., Zubov, V. and Schmutz, W. 2005. Assessment of the ozone and temperature variability during 1979-1993 with the chemistry-climate model SOCOL, ''Adv. ...ber of natural and anthropogenic factors in addition to reactive halogens: temperature, transport, volcanoes, solar activity, hydrogen oxides, and nitrogen oxides
    27 KB (4,305 words) - 16:22, 6 August 2014
  • ...der than in the 1960s and 1970s, with the exception of 2002. The change in temperature is a maximum in November, later than the maximum change in ozone, because t ...ile:Figure 4.17 - Halley October mean total ozone and November mean 100hPa temperature by year.png|Figure 4.17]]), in November reaching a difference of up to 15&d
    43 KB (6,788 words) - 17:07, 22 August 2014
  • ...J.C. 2004. Recent climate variability in Antarctica from satellite-derived temperature data, ''J. Climate'', '''17''', 1569-1583.</ref>; Marshall, 2007<ref name=" ...ermohaline circulation and may explain recent patterns of observed oceanic temperature change in the Southern Ocean described by Gille (2002<ref name="Gille, 2002
    54 KB (8,177 words) - 13:38, 22 August 2014
  • ...eterson, R. 1996. An Antarctic Circumpolar Wave in surface pressure, wind, temperature, and sea ice extent, ''Nature'', '''380''', 699-702.</ref>), a postulated p ...f>). Atmosphere-ocean interaction leads to inaccuracies in the sea surface temperature and in the structure of the thermocline (Cai et al., 2003<ref name="Cai et
    29 KB (4,462 words) - 17:11, 22 August 2014
  • ...Primary regionalisation of the Southern Ocean based on depth, sea surface temperature, silicate, and nitrate concentrations (white areas represent cells with mis ...ampled using satellite data (e.g. in the case of ice cover and sea surface temperature), or demand high effort field studies (e.g. in the case of krill or fish st
    8 KB (1,225 words) - 15:33, 6 August 2014
  • ...n extreme climatic events. In most of them, rather than a direct impact of temperature or weather (precipitation, snowfall, or sea ice coverage) on individuals, t ...tions are correlated with changes in ocean climate, especially sea surface temperature (Trathan et al., 2006<ref name="Trathan et al, 2006">Trathan, P.N., Murphy,
    16 KB (2,488 words) - 15:33, 6 August 2014
  • ...ts for survival in the Southern Ocean: vulnerability of benthic species to temperature change, ''Antarctic Sci.'', '''17''', 497-507.</ref>) suggests that long-te ...sy to predict precisely what the effect of a change in one parameter, like temperature, may be, given the immense complexity of ecological systems and biological
    4 KB (557 words) - 15:33, 6 August 2014
  • ...ors of climate because they integrate different climatic factors (i.e. air temperature, seasonal snow cover, wind), which interact with each other and with the gr ...s of 30cm and 360cm at Boulder Clay since 1996.png|Figure 4.43]] shows the temperature recorded near the permafrost table (at a depth of 30 cm) and at the end of
    6 KB (847 words) - 16:11, 6 August 2014
  • ...04">Van Den Broeke, M.R. and Van Lipzig, N.P.M. 2004. Changes in Antarctic temperature, wind and precipitation in response to the Antarctic Oscillation, ''Ann. Gl
    20 KB (3,125 words) - 15:33, 6 August 2014
  • ...hern Ocean can be explained by the combination of a 1-2 month lag of ocean temperature to local insolation, and the long memory of the Southern Ocean system - whi
    24 KB (3,785 words) - 17:17, 22 August 2014
  • ...o single external driver, nor single aspect of climate change (atmospheric temperature, snowfall rate, or ocean conditions) will dominate in all areas. Rather the ...ic Ice Sheet during periods prior to one million years ago in which global temperature was ~3&ordm; warmer than pre-industrial levels. The data also demonstrate t
    26 KB (4,124 words) - 14:04, 22 August 2014
  • ...ial changes in greenhouse gas concentrations and their lags with Antarctic temperature is still a challenge for modellers (K&ouml;hler et al., 2005<ref name="K&ou
    7 KB (1,082 words) - 15:33, 6 August 2014
  • ...of GCMs is important in the global energy and water balance. Land surface temperature and soil moisture content are two basic variables in the energy and water e ...onent because it is a slowly varying component. Observed present-day ocean temperature and salinity are usually used to initialize the ocean component. Another sl
    13 KB (2,051 words) - 15:33, 6 August 2014
  • ...Lambeck, K., Balbon, E. and Labracherie, M. 2002. Sea level and deep water temperature changes derived from bentic foraminifera isotopic records, ''Quat. Sci. Rev ...positive feedback that involves the mid-latitude westerly winds, the mean temperature of the atmosphere, and the overturning of southern deep water. Cold glacial
    35 KB (5,415 words) - 15:33, 6 August 2014
  • ...merous well-dated biological proxy records in lakes and other sites show a temperature-related decline in production at about this time (Bj&ouml;rck et al., 1991b ...ed in a monitoring study of lakes in Signy Island where an increase in air temperature resulted in a significant increase in the amount of ice-free days and 4-fol
    32 KB (5,127 words) - 17:41, 22 August 2014
  • ...5">Gersonde, R., Crosta, X., Abelmann, A. and Armand, L. 2005. Sea-surface temperature and sea ice distribution of the Southern Ocean at the EPILOG Last Glacial M
    17 KB (2,705 words) - 17:43, 22 August 2014
  • ...ch'', '''102''', 26455-26470.</ref>); Siple Dome ;<sup>18</sup>O proxy for temperature (Mayewski et al., 2004a<ref name="Mayewski et al, 2004a">Mayewski, P.A., Ro ...ng the phasing and the magnitude of changes in atmospheric circulation and temperature between Northern and Southern Hemisphere polar latitudes. These conclusions
    39 KB (5,945 words) - 15:33, 6 August 2014
  • ...quently, models have been modified to include calculation of englacial ice temperature, inclusion of ice-shelf flow, and deformation of subglacial sediments. A re ...uced, which leads to basal lubrication and higher ice flow rates, when the temperature reaches the pressure melting point. This happens first in the deeper channe
    33 KB (5,053 words) - 15:33, 6 August 2014
  • ...warming on wild animals and plants, ''Nature'', '''421''', 57-60.</ref>). Temperature means and variability associated with the climate regime can be interpreted ...''Biol. Rev.'', '''81''', 75-109.</ref>). Climate-induced changes in mean temperature and its variability should influence the survival of such organisms. That b
    25 KB (3,817 words) - 15:33, 6 August 2014
  • ...ture adaptation of Antarctic macroalgae.png|thumb|'''4.53''' Physiological temperature adaptation of Antarctic macroalgae (after Wiencke and Clayton, 2002<ref nam ...erate species (especially from the intertidal) are characterised by higher temperature requirements (Wiencke and tom Dieck, 1990).
    11 KB (1,587 words) - 15:33, 6 August 2014
  • ...includes sensors for conductivity (from which salinity can be derived) and temperature plus a pressure sensor. Other sensors, including those used to measure diss ...ing measurements of the ocean such as thermosalinographs (that measure the temperature and salinity of the water a couple of metres below the surface) or hull-mou
    17 KB (2,672 words) - 15:50, 6 August 2014
  • ...he Antarctic and lower latitudes. This promoted adaptive evolution to cold temperature and extreme seasonality to develop in isolation, and led to the current Ant ...m; C in glacial periods to 280 ppm and 15&ordm; C in interglacial periods. Temperature differences between glacial and interglacial periods in Antarctica averaged
    48 KB (7,673 words) - 18:27, 22 August 2014
  • ...anges in global atmospheric CO<sub>2</sub> and methane, which enhanced the temperature rises by positive feedback. The climates of the two hemispheres were physic ...cles over the last 800,000 years, show that CO<sub>2</sub> and mean global temperature values ranged globally from 180 ppm and 10&ordm;C in glacial periods to 280
    142 KB (22,142 words) - 16:25, 6 August 2014
  • ...nges of water temperature close to the freezing point. Slight increases in temperature may have disproportionate influence on the properties of cell membranes and ...tinental Antarctica there is as yet no significant trend in meteorological temperature, a loss of ice shelves such as that in the Antarctic Peninsula (six ice she
    38 KB (5,770 words) - 15:33, 6 August 2014
  • ...e slow growth of filter feeders, encouraged among other factors by the low temperature, can explain why rather few species might have been historically outcompete ...encke, C., Bartsch, I., Bischoff, B., Peters, A.F. and Breeman, A.M. 1994. Temperature requirements and biogeography of Antarctic, Arctic and amphiequatorial seaw
    54 KB (8,173 words) - 15:33, 6 August 2014
  • Just north of the Antarctic Polar Front, the surface water temperature rises abruptly by about 3&deg;C. The Front acts as a barrier for Gene flow
    9 KB (1,386 words) - 15:33, 6 August 2014
  • ==Species-specific adaptation to low temperature== ...tolerance. Thus the physiological processes evident in response to varying temperature, at least in acute to medium-term experiments, are a progressive reduction
    43 KB (6,450 words) - 15:33, 6 August 2014
  • ...polar plateau brings additional problems, with the combination of very low temperature and high altitude. ...eters compared to the staffed stations, usually just atmospheric pressure, temperature and wind, although some may measure humidity, along with snow depth, which
    59 KB (9,046 words) - 15:33, 6 August 2014
  • ...res are not expected; models suggest a 0.5&ordm; to 1.0&ordm;C rise in the temperature of Southern Ocean surface waters in summer over the next 100 years, possibl ...lso debate about the extent to which such short-term experiments and rapid temperature rises reflect true vulnerability to chronic regional warming, although cert
    54 KB (8,443 words) - 17:49, 22 August 2014
  • The permafrost thermal regime is monitored by recording the temperature at different depths within boreholes. Traditionally, active layer measureme To monitor the depth of the 0&deg;C isotherm, the temperature of the active layer is recorded at different depths, at least during the su
    23 KB (3,347 words) - 19:33, 22 August 2014
  • ...ecologically relevant physical parameters, such as ice cover, sea surface temperature, and iceberg production. ADCP&rsquo;s and plankton-video-recorders provide ...nt picture of the molecular changes involved in evolutionary adaptation to temperature is emerging, much remains unknown as yet. Relatively few cold-adapted enzym
    23 KB (3,516 words) - 15:33, 6 August 2014
  • ...ref name="Nicholls and Jenkins, 1993">Nicholls, K.W. and Jenkins, A. 1993, Temperature and salinity beneath Ronne Ice Shelf, Antarctica, J. Geophys. Res., 98, 22,
    52 KB (8,045 words) - 15:43, 22 August 2014
  • ...1-2000.png|thumb|'''5.14''' The zonal mean difference between observed (a) temperature (&deg;C) and (b) salinity (psu) and the average of 19 CGCMS simulations for ...[[:File:Figure 5.14 - Zonal mean difference between observed and simulated temperature and salinity, 1981-2000.png|Figure 5.14]]), the zonal mean differences are
    33 KB (5,321 words) - 15:57, 22 August 2014
  • ...gions where internal waves are active this can produce an apparently noisy temperature field in the surface layers, which, if left uncorrected, affects the sea ic ...Modelling'', '''16''', 1-16.</ref>), in handling the non-linear effect of temperature on compressibility (so really a unique constant potential density surface d
    37 KB (5,859 words) - 15:33, 6 August 2014
  • ...b by altering regional and local current patterns. Although changes in sea temperature are as yet small, increased warming may cause sub-lethal effects on physiol ...are more extreme and constant than those of the Arctic, where the range of temperature variation is wider, thus facilitating migration and redistribution of the f
    25 KB (3,663 words) - 15:33, 6 August 2014
  • ...s, ''Functional Ecology'', '''18''', 625-630.</ref>). Conversely, rises in temperature might significantly raise the survival chances and competitiveness of tempe ...ation and dynamics of the Antarctic Polar Front from satellite sea surface temperature data, ''Journal of Geophysical Research'', '''104''', 3059-3073.</ref>). It
    13 KB (2,063 words) - 15:33, 6 August 2014
  • * More observations of temperature, salinity, biochemical properties, such as oxygen and flow in the Southern
    14 KB (2,069 words) - 16:14, 22 August 2014
  • ...l climate anomalies and to determine the significance of the heterogeneous temperature trends being measured in Antarctica today. There is no geological evidence
    10 KB (1,543 words) - 15:33, 6 August 2014
  • &lsquo;Shelf waters&rsquo; include a variety of low-temperature, ice-modified, high- and low-salinity water masses found below the ocean su ...elting under the Ross Ice Shelf: Estimates from evolving CFC, salinity and temperature fields in the Ross Sea, ''Deep-Sea Res. I'', '''52''', 959-978.</ref>).
    8 KB (1,297 words) - 15:33, 6 August 2014
  • ...ltimeters, scatterometers, infra-red and microwave sensors for sea-surface temperature and ice extent and visible-wavelength radiometers for ocean colour. Ensurin ==Sea Surface Temperature==
    20 KB (3,084 words) - 15:57, 6 August 2014
  • ...ain relatively high growth rates under extreme conditions of low light and temperature when compared to water column species. This apparent dominance of few speci ...ising from such an approach is that microalgal growth limitation by light, temperature or salinity, affects only the rate of carbon incorporation in biomass, with
    18 KB (2,786 words) - 15:33, 6 August 2014
  • ...ment, the ice concentration data are not as accurate because variations in temperature and emissivity of the ice cover could not be taken into account. Second, it ...changes in the longwave atmospheric pattern may cause contrasting regional temperature and windfield patterns. Preliminary analysis of MSA concentrations in the G
    18 KB (2,972 words) - 17:53, 22 August 2014
  • ...5">Gersonde, R., Crosta, X., Abelmann, A. and Armand, L. 2005. Sea-surface temperature and sea ice distribution of the Southern Ocean at the EPILOG Last Glacial M ...5">Gersonde, R., Crosta, X., Abelmann, A. and Armand, L. 2005. Sea-surface temperature and sea ice distribution of the Southern Ocean at the EPILOG Last Glacial M
    13 KB (2,050 words) - 15:33, 6 August 2014
  • ...6<ref name="Foster and Carmack, 1976">Foster, T.D. and Carmack, E.C. 1976. Temperature and salinity structure in the Weddell Sea, ''J. Phys. Oceanogr.'', '''6''',
    18 KB (2,816 words) - 15:33, 6 August 2014
  • ==Surface temperature== Surface temperature trends across the Antarctic can be determined using a number of different f
    30 KB (4,676 words) - 18:04, 22 August 2014
  • ...n temperature trend over the Twenty First Century.png|thumb|'''5.6''' Skin temperature trend over Twenty First Century in &ordm;C/decade.]] ..., D03103, doi:03110.01029/02007JD008933.</ref>) ([[:File:Figure 5.6 - Skin temperature trend over the Twenty First Century.png|Figure 5.6]]). All the CMIP3 models
    8 KB (1,217 words) - 15:34, 6 August 2014
  • ...ous species richness explained by factors including area, mean surface air temperature, and age and distance from continental land masses (Marshall and Convey, 20 ...n are evident across the Antarctic flora and are most likely a function of temperature variation. In addition, phenology (the study of periodic plant and animal l
    21 KB (3,069 words) - 18:14, 22 August 2014
  • ...n are evident across the Antarctic flora and are most likely a function of temperature variation - indeed recent increase in the frequency of successful seed prod ...DNA damage in Antarctic mosses: correlations with ultraviolet-B radiation, temperature and turf water content vary among species, Global Change Biology, 14, in pr
    32 KB (4,651 words) - 16:17, 6 August 2014
  • ...mperature stress, but rather an increase in stress at the other end of the temperature spectrum. How organisms are likely to respond to this kind of challenge has ...uably have a greater effect on vegetation and faunal dynamics than that of temperature alone (Convey, 2006<ref name="Convey, 2006">Convey, P. 2006. Antarctic clim
    22 KB (3,193 words) - 15:34, 6 August 2014
  • ...eterson, R. 1996. An Antarctic Circumpolar Wave in surface pressure, wind, temperature, and sea ice extent, ''Nature'', '''380''', 699-702.</ref>) or the SAM (Hal ...d from the ship&rsquo;s 3.5 kHz echosounder data. Right figure depicts the temperature field in front of Pine Island Glacier with its draft shaded in gray. This s
    11 KB (1,650 words) - 15:34, 6 August 2014
  • ...curs only sporadically in the South Shetland and South Orkney Islands. The temperature of permafrost is &ndash;12 to &ndash;24&deg;C in continental Antarctica but
    15 KB (2,479 words) - 15:34, 6 August 2014
  • ...ea ice extent has changed little. There are first signs of increased water temperature also along the coast. Because of an assumed high sensitivity of such biolog ...t as possible, the concept is based only on coarse patterns. Air and ocean temperature are assumed to be the main climate-driven environmental parameters for the
    20 KB (3,055 words) - 15:34, 6 August 2014
  • ...increased snow accumulation. One estimate of mass change due primarily to temperature-dependent increases in snowfall on the peninsula suggested a contribution t ...is, E.M. and Vaughan, D.G. 2003. Spatial and temporal variation of surface temperature on the Antarctic Peninsula and the limit of viability of ice shelves, In An
    40 KB (6,031 words) - 18:17, 22 August 2014
  • ...the Ross Sea and Ad&eacute;lie Land. Lower) Changes in the deep potential temperature &ndash; salinity curves along 115&deg;E, over the continental rise (61-63.3 ...([[:File:Figure 4.24 - Map of repeat section locations and deep potential temperature-salinity curves.png|Figure 4.24]]), moorings and satellite altimeter measur
    14 KB (2,205 words) - 15:34, 6 August 2014
  • ...than the equivalent winds found in the Arctic, because the Equator-to-pole temperature difference is larger in the south. The pool of cold air and its strong surr ...res from northern and southern hemisphere ice cores confirms that the wind/temperature fields of today differ from those of the recent past indicating that the mo
    12 KB (1,933 words) - 16:38, 22 August 2014
  • ...e estimates could rather be climate-related and reflect a change in either temperature or productivity independent of ocean circulation (Barker et al., 2007<ref n ...mal Maximum, ''Science'', '''308''', 1611-1615.</ref>). The future rise in temperature expected from energy use projections shows the Earth warming back into the
    20 KB (3,076 words) - 15:34, 6 August 2014
  • ...mal Maximum, ''Science'', '''308''', 1611-1615.</ref>). The future rise in temperature expected from energy use projections shows the Earth warming back into the ...4&ordm;C higher than today ([[:File:Figure 3.5 - Change in average global temperature over the last 80 million years.png|Figure 3.5]] and [[:File:Figure 3.6 - Ma
    27 KB (4,257 words) - 15:34, 6 August 2014
  • ...o temperature change, ''Antarctic Sci.'', '''17''', 497-507.</ref>). Small temperature differences (just a degree or two) may have great impacts on the physiology ...lar marine fauna, the most important are ice scour, topography, substrate, temperature, currents, ice cover, oxygen, light, UVB, wind, and nutrients. Besides bein
    14 KB (2,188 words) - 15:34, 6 August 2014
  • ...tosphere. Yet PSCs are known to be important for the radiation balance and temperature of the atmosphere between the mid/upper troposphere and the lower stratosph ...n simulations and observations are significantly correlated with projected temperature change under future scenarios (R&auml;is&auml;nen, 2007<ref name="R&auml;is
    33 KB (5,155 words) - 15:34, 6 August 2014
  • ...;-90&deg;W, a region characterised by rapid regional changes both in water temperature (Meredith and King, 2005<ref name="Meredith and King, 2005">Meredith, M.P. ...relation between krill density (30&deg;W to 70&deg;W) and mean sea surface temperature at South Georgia has been found for the period 1928-2003, which implies a l
    28 KB (4,437 words) - 15:34, 6 August 2014
  • ...hest, driest, windiest and coldest continent, boasting the lowest recorded temperature on Earth, -89.2&ordm;C, at Russia&rsquo;s Vostok Station ([[:File:Figure 1.
    8 KB (1,295 words) - 16:38, 6 August 2014
  • ...The atmospheric and oceanic circulations respond to this large horizontal temperature gradient by transporting heat polewards (Trenberth and Caron, 2001<ref name
    31 KB (4,808 words) - 16:51, 22 August 2014
  • ...regions of the SW Indian Ocean.png|thumb|'''4.57''' Annual mean trends of temperature normalized fCO<sub>2</sub> in 4 regions of the South-Western Indian Ocean ( ...the winter than in the summer ([[:File:Figure 4.57 - Annual mean trends of temperature normalized fCO2 for regions of the SW Indian Ocean.png|Figure 4.57]]). Thes
    36 KB (5,780 words) - 16:53, 6 August 2014
  • ...e density loss by less salt is compensated by a density gain due to colder temperature. The major fronts representing ACC branches are displayed as dynamic height ...e changes are rather similar all along the ACC ([[:File:Figure 4.23 - ARGO temperature anomalies and ACC fronts.png|Figure 4.23]]; B&ouml;ning et al., 2008<ref na
    16 KB (2,443 words) - 15:34, 6 August 2014
  • ...the exceptional character of this last termination: neither the Antarctic temperature proxies nor the methane records capture such abrupt changes during the earl ...ref>); and finally, in light blue, EDC &delta;D (&permil;), a proxy of EDC temperature (Jouzel et al., 2007<ref name="Jouzel et al, 2007">Jouzel, J., Masson-Delmo
    32 KB (4,956 words) - 15:34, 6 August 2014
  • ...>Robertson, R., Visbeck, M., Gordon, A.L. and Fahrbach, E. 2002. Long-term temperature trends in the Deep Waters of the Weddell Sea, ''Deep-Sea Research II'', '''
    15 KB (2,389 words) - 15:34, 6 August 2014
  • ...sequence of reduced food availability, despite the fact that the sea water temperature remained practically constant all year round.
    9 KB (1,434 words) - 15:34, 6 August 2014

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