The Arcticseaice covers less area in the summer than in the winter. The multi year i.e. perennial seaice covers nearly all of the central deep basins. The Arcticseaice and its related biota ecology ... about how long perennial seaice has existed in the Arctic. Estimates range from 700,000 to 4 million years. Endemic species The specialized, sympagic i.e. ice associated community within the sea ... has noted that, There is no common opinion on the age of the Arcticseaice cover. ref cite book ... ice free arctic ocean 22 title The ArcticSeaIce Ecosystem pages 172 work Google Book Search format ..., Cnidaria in Arctic coastal fast ice. Polar Biology 30 1557 1563. Horner, R. 1985 SeaIce Biota. CRC Press. Melnikov, I. 1997 The ArcticSeaIce Ecosystem. Gordon and Breach Science Publishers. Thomas ... water interface. The organisms living within the seaice are consequently small 1mm , and dominated ... the most important primary producers inside the ice with more than 200 species occurring in Arcticseaice. In addition, flagellates contribute substantially to biodiversity , but their species ... 2, they are important mediators for particulate organic matter from the seaice to the water column ... in close association with seaice and acts as the major link from the ice related food web to seals and whales. While previous studies of coastal and offshore seaice provided a glimpse of the seasonal ... ice regimes and the likely loss of the multi year ice cover. Dating Arcticice Estimates of how long the Arctic Ocean has had perennial ice cover vary. ref name Ottera cite journal last Butt first F. A. coauthors ... url http www.sciencemag.org cgi content abstract 210 4467 323?ck nck title Episodic Ice Free Arctic ... . Although this is interpreted to indicate episodic ice free conditions for the central Arctic, the occurrence ... transportation of coccoliths from ice free continental seas marginal to the central Arctic. The sediment ... Climate of the ArcticArctic Ocean Arcticecology Further reading Bluhm, B., Gradinger R. 2008 Regional ... more details
Arctic flora Arcticseaiceecology and history Arctic shrinkage External links http www.blueplanetbiomes.org ...Arcticecology is the scientific study of the relationships between Biotic component biotic and abiotic factors in the arctic , the region north of the Arctic Circle 66 33 . This is a region characterized ... ecosystems exist throughout the Arctic region, which are being impacted dramatically by global warming . Arctic environment To understand Arcticecology, it is important to consider both the terrestrial and oceanic aspects of the region. A few important parts of this environment are seaice and permafrost. Seaice is frozen seawater that moves with oceanic currents it provides important habitat and a resting ... seawater get trapped in the ice, and the salt is squeezed out. This causes the ice to become progressively less salty. Seaice persists throughout the year, but there is less ice available during ... by warmer temperatures, melting glaciers, shorter durations of seaice and changing weather and storm ... impacted. Second, the melting of glaciers and seaice is disrupting the lifestyles of a wide range of species. Polar bear s live on the seaice for much of the year and find their food in the surrounding ... of most summer seaice within 40 years. A third practical concern is the melting of permafrost due ..., 39, 367 375 Arctic topics DEFAULTSORT Arcticecology Category Environment of the Arctic Category Tundra Ecology Category Taiga and boreal forests Ecology Category Arctic flora Ecology Category Environmental science Category Ecological experiments simple Arcticecology ... 50 90 days and virtually no sunlight throughout the winter. The Arctic consists of taiga or boreal ... ecosystems, which are found south of these Arctic biomes. Tundra Tundra is found from 55 to 80 ... Humans Humans living in the Arctic region generally rely on warm clothing and buildings to protect ..., although its presence is advantageous. Amazingly, most people living in the Arctic region live ... more details
Arcticseaiceecology and history Arctic shrinkage Drift ice station Drift station Ice class Ice pier ... . Yearly freeze and melt cycle Image Plot arcticseaice volume.svg thumb Seasonal variation and annual decrease of Arcticseaice volume as estimated by measurement backed numerical modelling. ref ... the winter the area of the Arctic Ocean covered by seaice increases, usually reaching a maximum ... of satellite observations of the polar ice. The minimum record summer Arcticseaice extent was in 2007. ref cite web last Scott first Michon title ArcticSeaIce Minimum for 2010 url http earthobservatory.nasa.gov ... ref Ecology main Sympagic ecologySeaice is part of the Earth s biosphere . When sea water freezes ... ref The decline of seasonal seaice is putting the survival of Arctic species such as ringed ... ArcticSeaIce Form and Decay? work NOAA Arctic theme page url http www.arctic.noaa.gov essay wadhams.html ... trends in polar seaice extents . External links http www.arctic.noaa.gov NOAA Arctic theme page http ... Navigator http arctic.atmos.uiuc.edu cryosphere Cryosphere Today Current Arcticseaice conditions ... that depicts the formation of seaice in the Baltic sea http www.arctic.io satellite The Arctic ...Seaice is largely formed from seawater that freezes. Because the ocean s consist of Seawater saltwater ... seaice loses its salt during its process of formation from sea water and thus eventually is fresh as well. TOC gallery style margin auto Image Sea ice.svg Change in extent of the ArcticSea ... in winter. The Gulf of Bothnia and White Sea are covered with seaice. Image SeaIce off Baffin Island.jpg Seaice off Baffin Island . Image SeaIce Imitates the Shoreline along the Kamchatka Peninsula.jpg Seaice imitates the shoreline along the Kamchatka Peninsula . Image Antarctic Peninsula, the Larsen Ice Shelf, and the seaice covered waters around the region.jpg Clear view of the Antarctic Peninsula , the Larsen Ice Shelf , and the seaice covered waters around the region. gallery Types of sea ... more details
shown in 1824 at the Prague Academy exhibition under the title An Idealized Scene of an ArcticSea, with a Wrecked Ship on the Heaped Masses of Ice . ref Ideale Szene eines arktischen Meeres, ein ... oil studies of ice floes on the river Elbe , near Dresden . These were probably incorporated into The Sea of Ice . Reception and influence The image created a lasting impression on the French sculptor ... 7207 6 DEFAULTSORT Sea of Ice, The Category Paintings by Caspar David Friedrich Category 1820s paintings ... as Ice Picture. The Disaster stricken North Pole Expedition . ref Eisbild. Die verungl ckte Nordpolexpedition ... the arctic landscapes of Lawren Harris , ref Larisey, Peter Light for a Cold Land Lawren Harris s Life ... ref The painting has been hailed by critic Russell Potter as a key instance of the Arctic Sublime ... Bradford painter William Bradford . ref Potter, Russell A. Arctic Spectacles The Frozen North in Visual ... more details
Alrai br 1998 Torm Senegal br 2000 Jogaila br 2005 ArcticSea Ship owner Arctic Runner Shipping ... cite web url http www.glfl.ca arctic sea.html title ArcticSea Specifications publisher TradeWinds.no ... Ship crew 15 The MV ArcticSea is a merchant vessel cargo ship , formerly of Malta that was reported ..., the ArcticSea , manned by a Russia n crew and carrying a cargo of what was declared to consist solely ... 30. The ArcticSea did not arrive at its scheduled port in Algeria, and on August 14 the ship was located ... up by Russian authorities. The ArcticSea was towed into harbor in the Maltese capital, Valletta ... international world 0,1518,656300,00.html title The Continuing Saga of the ArcticSea date 2009 ..., the hijacking of ArcticSea would be the first known of its kind in Northern European waters for centuries ... The ArcticSea ends mystery voyage in Malta with Russian guards date 2009 10 30 work Times Online accessdate ... what actually happened . ref name bbc 20110324 cite news title ArcticSea ship hijackers jailed by Russian ... Background The ArcticSea is presently owned by a US based company, Arctic Runner Shipping Inc. and operated ... 1135248485958 Missing ArcticSea cargo vessel pursued by rumours and Russian Navy . Helsingin Sanomat ... Eight in Hijacking of Ship ArcticSea publisher Bloomberg L.P. Bloomberg date 2009 08 18 accessdate ... worldnews europe russia 6145336 ArcticSea ghost ship was carrying weapons to Iran.html ArcticSea ... Tommi last Nieminen title Where are you, ArcticSea? work Helsingin Sanomat url http www.hs.fi english ... cite web first Eugene last Sazonoff title ArcticSea work Komsomolskaya ... ArcticSea work Komsomolskaya Pravda url http kp.ru daily 24342.4 ... last Brunnstrom ref Disappearance File The incident of the ship ArcticSea 2009 .en.enh.svg thumb left Route of the ArcticSea The United Kingdom British Maritime and Coastguard Agency had the last known ... world 2009 aug 11 arcticsea missing ship pirates date 2009 08 11 accessdate 2009 08 11 location London ... more details
one source date February 2012 no footnotes date February 2012 Background The Arctic Ocean Flotilla AOF lang ru , or Flotiliya Severnogo Ledovitogo okeana , was a Russian military flotilla stationed in Aleksandrovsk today s Polyarnyy at the mouth of the Kola Gulf, Iokanga , and Arkhangelsk. In July 1916, the formation of the AOF began and by September was dominantly complete. By the end of 1917 the AOF comprised the battleship Chesme , cruiser warship cruisers Askold and Varyag , 6 destroyer s, 3 submarine s and other ships. The AOF s operational zone included the Barents Sea from the Norwegian border to the Kara Gates and the White Sea. Its mission was to secure uninterrupted the sea lines of communications connecting Russia with its Entente allies. ref www.rusnavy.ru d02 140.htm ref After Bolshevik Russia s withdrawal from World War I , the flotilla comprised approximately 90 combatant and auxiliary ship s. In August 1918, the best ships of the AOF were captured by the Allied Intervention in the Russian Civil War interventionist s and the White Army . The rest of the ships were intentionally put out of commission or destroyed. References reflist See also Soviet Red Banner Northern Fleet GSEncyclopedia Category Russian Navy Category Military in the Arctic Category Military units and formations of Russia russia mil stub arctic stub ... more details
can serve as a stand in proxy for Arcticseaice, but such temperature records were initially collected ... ice charts dating back to 1933. Today, scientists studying Arcticseaice trends can rely on a fairly ... thumb SeaIce in the Arctic Ocean fluctuates with the seasons. Seaice extent is the area of sea ... F title Whither Arcticseaice? A clear signal of decline regionally, seasonally and extending ... Cite web url http www.arctic.noaa.gov reportcard seaice.html title Pan ArcticSeaIce Outlook 2009 Summary ... much the ice grows in the winter and melts in the summer. For Arcticseaice virtually all of the growth ... Seaice volume Image Plot arcticseaice volume.svg thumb right Seasonal variation and long term decrease of Arcticseaice volume as determined by measurement backed numerical modelling. ref name ... wide measurements of the volume of seaice, but the volume of the Arcticseaice is calculated using ... and Ice Data Center ArcticSeaIce News and Analysis publisher NSIDC ref Cryosat 2 , launched in April ... faq.html wintertimeantarctic NSIDC, ArcticSeaIce News and Analysis Frequently Asked Questions about Arcticseaice ref Records before the satellite era are sparse. William K. de la Mare ... of summer seaice in the Arctic have shown a dramatic decline over the past thirty years. ref name .... 2006. Whither Arcticseaice? A clear signal of decline regionally, seasonally and extending beyond ... nsidc.org arcticseaicenews National Snow and Ice Data Center ArcticSeaIce News & Analysis DEFAULTSORT Measurement Of SeaIce Category Earth phenomena Category Aquatic ecology Category Seaice ... images Measurement of seaice is important for safety of navigation and for monitoring the Natural ... hemisphere seaice and a very small, statistically insignificant increase in the winter Southern hemisphere seaice. Methods of measuring seaice Early observations Records assembled by Vikings showing ... 870, but a more complete record exists since 1600. More extensive written records of Arcticsea ... more details
orphan date April 2010 File frostflowers2.png thumb Frost flowers growing on young seaice in the Arctic . Frost flowers are ice crystals commonly found growing on young seaice and thin lake ice in cold, calm conditions. The ice crystals are similar to Frost Radiation frost hoar frost , and are commonly seen to grow in patches around 3 4 cm in diameter. Frost flowers growing on seaice have extremely high Salinity salinities and concentrations of other sea water chemicals and, because of their high ... vapour is found directly above the seaice, caused by the Sublimation chemistry sublimation of ice ... and can condense as hoar frost like crystals on the seaice surface. In general, frost flowers ... seaice, J. Geophys. Res. , 100 , C4, 7027, 1995. ref Frost flowers are most commonly found on young seaice in polar region s as the large temperature differences between the ice and air are suitable for growth. When the ice grows too thick, the upper surface of the ice cools down and frost flowers no longer grow. This means that frost flowers typically only grow in the first few days of ice ... flowers on seaice as a source of sea salt and their influence on tropospheric halogen chemistry ... ice is extruded from freezing plants, is also referred to as frost flower s. Formation Frost flowers are formed on thin seaice when the atmosphere is much colder than the underlying ice. Typically a temperature difference between the ice surface and the air of at least 15 C is required, though this can ... the surface and blowing snow obscures the ice surface. ref name Style Style, R. W. and Worster, M. G. Frost flower formation on seaice and lake ice, Geophys. Res. Lett. , 36 , L11501, 2009 doi 10.1029 2009GL037304. ref On lake ice, frost flowers are effectively identical to hoar frost crystals. On seaice, brine is wicked up onto the hoar frost crystals, which leads to high salinities of up to 100 Salinity Definitions psu ppt approximately three times more salty than sea water . ref name Martin ... more details
Seaice is a complex composite composed primarily of pure ice in various states of crystallization along ... radiation . File Nilas Sea Ice1.jpg thumb upright 2 right Nilas Ice formation at sea. Seaice growth models for predicting the seaice concentration ice distribution and extent are also valuable ... assimilation assimilation model as a means of generating more accurate seaice concentration ice charts . Overview Several formation mechanisms of seaice have been identified. At its earliest stages, seaice consists of elongated, randomly oriented crystals . This is called frazil ice frazil ... of SeaIce editors W. B. Tucker, D. K. Prerovich, A. J. Gow, W. F. Weeks, M. R. Drinkwater publisher ... where Precipitation meteorology precipitation over seaice is high, is from snow deposition on thin ..., R. Galley, and D. G. Barber, D. G. year 2007 title Investigations of newly formed seaice in the Cape ... Maksym Markus2008 cite journal author T. Maksym and T. Markus year 2008 title Antarctic seaice thickness .... Li year 2007 title Structure, salinity and isotopic composition of multi year landfast seaice in Nella ... Hajo Eicken year 1992 title Salinity Profiles of Antarctic Seaice Field Data and Model Results ..., C. M. Bitz, T. Fichefet year 2007 title Summer landfast seaice desalination at Point Barrow ... Seaice thickness Determining surface heat flux determining surface flux under seaice thickness ... 1988 title Numerical simulations of the profile properties of undeformed first year seaice during .... Stammer, R. T. Tonboe and C. Haas title L Band Radiometry for SeaIce Applications institution Institute ... the initial brine entrapment in seaice have been derived by Cox and Weeks ref name Cox ... ice in the high Arctic volume 27 number 96 pages 315 330 ref and take the form math S S 0 f g math ... Ratio of brine volume to total salinity as a function of temperature Brine entrapped in seaice ... Addison Wesley address London, England ref contain empirical formulas relating seaice temperature ... more details
Seaice thickness is an important climate related variable whose determination from satellite measurements is still an unsolved problem. While seaice concentration ice concentration is often used as a marker for climate change, the more important variable is seaice volume which can be determined by multiplying concentration with thickness and integrating over the ocean surface. Seaice thickness ... content when frozen see seaice growth processes . It is also important for navigators on icebreaker s since there is an upper limit to the thickness of ice any ship can sail through. Determining surface heat flux The rate of heat transfer between ocean and air through an ice sheet can be determined ... Research title Numerical simulations of the profile properties of undeformed first year seaice .... Haas title L Band Radiometry for SeaIce Applications institution Institute of Environmental Physics ... larger scale during the GreenICE Greenland Arctic Shelf Ice and Climate Experiment campaign ... month, for instance are significant. The microwave emissivity of seaice is found to vary quite significantly ... Research title Thin seaice thickness as inferred from passive microwave and in situ observations ..., equation to determine the thickness of new ice in the Chukchi Sea from satellite microwave radiometer ... accurate method for determining seaice thickness from satellite data is based on infrared radiometry ... of seaice indeed of most classes of objects is fairly constant at infrared frequencies, measurements ... band radiation penetrates quite deeply into seaice. This implies that the instrument will supply at least ... low salinity seaice journal The Cryosphere Discussion volume 3 pages 995 1022 doi 10.5194 tc 4 ... Seaice emissivity modelling at L band and application to Pol Ice campaign field data number 2 ... ieee.pdf ref See also Measurement of seaiceSeaice concentration Seaice emissivity modelling Sea ... features seaice skinny.html NASA The Skinny on SeaIce Thickness Category Seaice Category Climate ... more details
Image Asi n6250 20100102 v5 visual.png thumb upright 2 alt Seaice concentration chart Seaice concentration ... Seaice remote sensing using AMSR E 89 GHz channels volume 113 number C02S03 doi 10.1029 2005JC003384 bibcode 2008JGRC..11302S03S ref Seaice concentration is a useful variable for climatology climate scientists and nautical navigators . It is defined as the area of seaice relative to the total ... sensing measurements. Significance Seaice concentration helps determine a number of other important ... insolation in the polar oceans. When combined with seaice thickness ice thickness , it determines ... the atmosphere. Maps of seaice concentration can be used to determine Measurement of seaiceice area ice area and Measurement of seaiceice extent ice extent , both of which are important markers ... Passive Microwave Data Over SeaIce volume 93 number C3 pages 2321 2332 ref ref name smos final cite ... and C. Haas title L Band Radiometry for SeaIce Applications institution Institute of Environmental ... on Geoscience and Remote Sensing title Retrieving seaice concentration from SMOS number 2 volume ... Sensing of the Environment title Passive microwave algorithms for seaice concentration A comparison ... and D. J. Cavalieri title An Enhancement of the NASA Team SeaIce Algorithm journal IEEE Transactions ... of seaice concentration derived from passive microwave sensors may be expected to be on the order ... Improved retrieval of seaice total concentration from spaceborne passive microwave observations using ... 226 235. title AMSR E Geolocation and Validation of SeaIce Concentrations Based on 89 GHz data ref ... in the microwave signatures produced by a given surface type. For seaice, the presence of snow, variations ... through the ice see seaice emissivity modelling . The presence of waves and surface roughness will change ... links http www.iup.uni bremen.de iuppage psa 2001 amsrop.html High resolution seaice concentration charts derived from AMSR AMSR E 89 GHz channel DEFAULTSORT SeaIce Concentration Category ... more details
With increased interest in seaice and its effects on the global climate , efficient methods are required ... . To help us detect seaice more efficiently, we need to model these emission processes. The interaction of seaice with electromagnetic radiation in the microwave range is still not well understood. Image seaice emissivity model flow diagram.png center thumb upright 2.5 alt Seaice emissivity ... title Seaice brightness temperature as a function of ice thickness Computed curves for AMSR E and SMOS ... Radiative transfer modelling Image Rt diag.gif thumb right upright 2 alt Seaice RT Diagram illustrating radiative transfer in a discontinuous medium, such as seaice. When scattering is neglected, sea ... 1 T i uparrow 1 tau i T i math ref name Mills Heygster2010 cite journal title Seaice emissivity modelling ... to establish with any certainty, is the complex refractive index , n sub i sub . Since seaice is non ... transfer calculations of seaice is the relative permittivity . Seaice is a complex composite composed ... The complex dielectric constant of seaice at frequencies in the range 0.1 4.0 GHz volume 49 number ... permittivity, V sub b sub is the relative brine volume see seaice growth processes and a and b are constants ... Tucker etal1992 cite book title Microwave Remote Sensing of SeaIce editors W. B. Tucker, D. K. Prerovich ... temperatures of seaice, especially in the higher frequencies, because both included brine ... begin to dominate. Scattering in seaice is frequently modelled with a Born approximation ref name ... processes in seaice are relatively poorly understood and scattering models poorly validated empirically .... Mills and Heygster, ref name Mills Heygster2010 for instance, show that seaice ridging may have a significant .... Since the microstructural properties of seaice tend to be anisotropic , permittivity is ideally ... title L Band Radiometry for SeaIce Applications institution Institute of Environmental Physics, University ... ice growth processes Metamaterial Seaice concentration Seaice thickness References Reflist 2 Category ... more details
Leads IPA en li dz are stretches of open water within fields of seaice . ref name fleming01 cite book title Ninety Degrees North last Fleming first Fergus authorlink coauthors year 2001 publisher Granta Books location London, UK isbn 1 86207 449 6 page pages url accessdate ref Leads are caused by movements of the ice due to wind, or to currents in the underlying water, and may open and close again within a brief period alternatively they may remain open more or less permanently. The so called Big Lead , off the North Greenland coast, was discovered in 1906 by Robert Peary on his first unsuccessful North Pole North Polar trek, and was still there when he made his second attempt in 1909. ref name fleming01 See also Polynya References reflist Category Earth phenomena Category Seaice et Lahkvesi ... more details
Organisms that thrive in Arcticseaice. National Oceanic and Atmospheric Administration ... shrinkage is seaice loss. There is a large variance in predictions of Arcticseaice loss, with models ... on the seaice of the Arctic Ocean , near the North Pole . USS Honolulu SSN 718 USS Honolulu pictured ... Climate models give a range of predictions of Arcticseaice loss, showing near complete to complete ... title ArcticSeaIce News and Analysis date 2011 09 13 publisher NSIDC ref ref cite web url http www.reuters.com article 2011 09 14 us arcticice idUSTRE78D02E20110914 title Report Arcticseaice coverage ... pace Arcticseaice is melting at its fastest pace in almost 40 years Guardian 11 September ... in Late June 2010.jpg thumb MODIS image of the same region. See also Polar ice packs The Arctic IPAc ..., seaiceice covered ocean, surrounded by treeless permafrost . The area can be defined as north ... to its cold and extreme conditions. In recent years the extent of the seaice has declined. ref .... About half of the analyzed models show near complete to complete seaice loss in September by the year ... s shrinking seaice cover volume 315 issue 5818 pages 1533 6 pmid 17363664 journal Science journal ... living around these pollution sources. Due to the prevailing worldwide sea and air currents, the Arctic ... Climate change in the ArcticArctic methane release File 2007 ArcticSea Ice.jpg thumb Arctic shrinkage Arcticseaice coverage as of 2007 compared to 2005 and also compared to 1979 2000 average File Plot arcticseaice volume.svg thumb The development of Arcticseaice volume as estimated by measurement corrected numerical simulation shows probability of total seaice loss in summer for the near ... zhang Pubs POIM.pdf title Modeling global seaice with a thickness and enthalpy distribution ..., as has become apparent in the melting seaice in recent years. Climate model s predict much greater ... glaciers and other ice in Greenland, could soon contribute to a substantial rise in sea levels worldwide ... more details
Other uses infobox title Ecology data1 File The Earth seen from Apollo 17.jpg 250px data2 File Hawk eating ... File Blue Linckia Starfish.JPG 90px data4 The scientific discipline of ecology addresses the full ... middle to aquatic ecosystem s. Ecology from lang el , house , study of is the science ... complex integrated wholes e.g., Community ecology communities . Ecosystems are sustained ... regenerative Spatial ecology spatial arrangement of types, forms, and interactions. Ecosystems create ... climate systems, and global biogeochemical cycles . Ecology is an interdisciplinary branch of biology , the study of life . The word ecology kologie was coined in 1866 by the German scientist ... ecology branched out of natural history and matured into a more rigorous natural sciences science ..., as it was introduced in 1859, is a pivotal cornerstone in modern ecological theory . Ecology ... of ecosystems, and The Abundance ecology abundance and distribution of biodiversity in context of the environment biophysical environment . Ecology is a human science as well. There are many practical applications of ecology in conservation biology , wetland management, natural resource management agriculture , forestry , fisheries , city planning urban ecology , community health , Ecological ... ecology . Ecosystems sustain every life supporting function on the planet, including climate regulation ..., forming Mosaic ecology mosaics of different age groups structured across a Landscape ecology ... a disturbed site and maturing in succession ecology successional stages leading to old growth forests . The scope of ecology covers a wide array of interacting levels of organization spanning ... Michalzik first2 B. last3 M ller first3 T. title Linking aphid ecology with nutrient fluxes in a coniferous forest journal Ecology volume 79 issue 5 pages 1514 25 year 1998 doi 10.1890 0012 9658 1998 ... frame. ref name Odum05 Hierarchical ecology See also Biological organisation quote box quote System ... more details
The SeaIce Physics and Ecosystem eXperiment SIPEX was an Australian contribution to the International Polar Year IPY . The expedition studied the seaice in the Antarctica zone in September and October 2007, investigating links between the seaice and the Southern Ocean ecosystems. Taking part were 45 scientists from 8 different countries, each a specialist on some aspect of the Antarctic seaice zone. Travelling aboard the research vessel Aurora Australis , the researchers covered East Antarctica between 110 E and 130 E. Experiments dealt with ice thickness and snow cover, the sympagic fauna and flora and examined the effects of ocean currents and wind. The extent and distribution of seaice in the polar regions is a sensitive indicator of global climate change. Global warming has been implicated in significant reductions in the extent of seaice and this trend is set to continue. An improved understanding of seaice may lead to improved conservation policies in Antarctica. ref http www.antarctica.gov.au science australian antarctic science strategic plan 201112 202021 australian antarctic science strategy 200405 201011 international polar year 2007 09 projects seaice physics and ecosystem experiment Australian Antarctic Division ref External links http www.sipex.aq SIPEX home page http search.informit.com.au fullText dn 204173820070386 res IELHSS Summary of project in Australian Antarctic Magazine http www.igsoc.org annals v52 57 a57a127.pdf Antarctic seaice extents and concentrations comparison of satellite and ship measurements from International Polar Year cruises Burcu OZSOY CICEK, Stephen F. ACKLEY, Anthony WORBY, Hongjie XIE, Jan LIESER http www.acecrc.sipex.aq access page ?page 400 Expedition researchers blogs References reflist Category Antarctica Category Earth sciences Category Conservation projects Category Environment of Antarctica Category Geography of Antarctica Category Science and technology in Antarctica ... more details
Image Krillicekils.jpg thumb right Remotely operated underwater vehicle ROV image of krill grazing under the ice. In this image most krill swim in an upside down position directly under the ice. Only one animal in the middle is hover ing in the open water. A sympagic environment is one where water exists mostly as a solid, ice , such as a polar ice cap or glacier . Solid sea ice is permeated with channels filled with salty brine. These briny channels and the sea ice itself have its ecology, referred to as sympagic ecology . Residents of temperate or tropical climates often assume, mistakenly, that ice and snow are devoid of life. In fact, a number of varieties of diatom s and alga e engage in photosynthesis in arctic and alpine climate alpine regions of Earth. Other energy sources include dust and pollen swept in from other regions. These ecosystems also include bacterium bacteria and fungus fungi , as well as animal s like Platyhelminthes flatworms and crustacean s. A number of sympagic worm species are commonly called ice worm s. Additionally, the ocean has abundant plankton , and prolific algal bloom s occur in the polar regions each summer as well as in high mountain lakes, bringing nutrients to those parts of the ice in contact with the water. In the spring, krill can scrape off the green lawn of ice algae from the underside of the pack ice. See also Polynya External links http e diss.uni kiel.de diss 1205 d1205.pdf Studies on the Arctic pack ice habitat and sympagic meiofauna seasonal and regional variabilities , Henrike Sch nemann, University of Kiel , dissertation, 2004 http www.biosbcc.net ocean marinesci 04benthon arcocean.htm The Arctic Ocean of Ice http www.glacier.rice.edu invitation 1 natives.html Antarctic life http ak.water.usgs.gov glaciology FAQ.htm Glaciology Category Aquatic ecology Category Water ice ecology stub ... more details
Research , Previous climate models have suggested that the ArcticseaiceArctic s summer seaice may completely disappear by 2040 if warming continues unabated. See also portal Global warming Ecology ...Image contamination pathways large.jpg thumb 250px right Long range pollution pathways to the ArcticArctic haze is the phenomenon of a visible reddish brown springtime haze in the atmosphere at high latitude s in the Arctic due to anthropogenic air pollution . A major distinguishing factor of Arctic ... pollutants from the polar air mass in spring, Arctic haze can linger for more than a month in the northern atmosphere. History of Arctic haze Arctic haze was first noticed in 1750 when the Industrial ... from. Poo jok was the term the Inuit used for it. ref Garrett, Tim. Pollutant Haze is Heating up the Arctic ... in notes by Norwegian explorer Fridtjof Nansen . After trekking through the Arctic he found dark stains on the ice. This was about a century ago. ref name findarticles.com Soroos, Marvin. The odyssey of Arctic haze toward a global atmosphere regime . December, 1992. Environment Magazine. http findarticles.com p articles mi m1076 is n10 v34 ai 13298180 ref The term Arctic haze was coined in 1956 by J. Murray Mitchell , a U.S. Air Force officer stationed in Alaska , ref Rozell, Ned. Arctic Haze ... 2007. http www.gi.alaska.edu ScienceForum ASF12 1279.html Arctic Haze . ref to describe an unusual ... is within a layer of Arctic haze, pilots report that horizontal visibility can drop to one tenth ... the Arctic is the recipient of contaminants whose sources are thousands of miles away. Further ... http content.scholastic.com browse article.jsp?id 4608 Contaminating the Arctic . 01 January 1999 ... makes the haze reddish in color. This pollution is helping the Arctic warm up faster than any other ..., Kathy S. and Andreas Stohl. Arctic Air Pollution Origins and Impacts . 16 March 2007. Science . http ... albedo reflection of sunlight. During the Arctic winter, however, there is no sunlight to reflect ... more details
. V. 170, pg 291 300. Melnikov, I.A., 1997. The ArcticSeaIce Ecosystem. P.P. Shirshov Institute ... believe that if the Greenland ice sheet melts then the sea level could rise by 23 feet Brown, 71 . The melting ... Studies in the Antarctic SeaIce Zone. Springer, New York. Bergstrom, D.M., Convey, P., Huiskes ...Polar ecology is the relationship between plants and animals in a polar environment. Polar environments are in the Arctic and Antarctic regions. Arctic regions are in the northern hemisphere, and it contains ... and subarctic zone which separate the polar regions from the temperate regions. Antarctica and the Arctic ... exact amounts. The temperatures are similar between the Arctic and Antarctica . The temperatures in the Arctic are different depending on the location. Temperatures in the Arctic have a higher range than in the Antarctic. Temperatures can range as much as 100 C. Along the coast in the Arctic ... . The ice melts along the coast during the summer months which are around June, July and August and the temperature ... these same months in the northern regions there will be 24 hours of daylight. Arctic regions also receive a lot of snowfall. The Arctic Basin has snow 320 days out of the year while the Arctic Seas have .... 90 of the world s water comes from the Antarctic ice cap although a lot of this water is not used Stonehouse ... while the smaller lakes thaw entirely. There are few rivers in the polar regions. The Arctic has more ... different types of lakes in polar regions including Arctic lakes and Antarctic lakes. Of the Arctic lakes they include glacial lakes and permafrost lakes. The polar regions include the Arctic Ocean and the Southern Ocean. The Arctic ocean covers 14 million km squared Stonehouse, 127 . In the spring the ice covers an area of 5 8 million km squared and in the winter it is twice that. In this area it is never totally ice covered. This is due to the winds breaking up the ice. Because of these cracks in the ice there is more biological productivity in the ocean. The Southern Ocean is 28 million ... more details
management Image 2007 ArcticSea Ice.jpg thumb 250px right Arctic shrinkage Arcticseaice coverage as of 2007 compared to 2005 and also compared to 1979 2000 average Temperatures in the Arctic region have tended to increase more rapidly than the global average. Projections of seaice loss that are adjusted ... Arcticseaice ref cite doi 10.1029 2006GL028017 ref and Arctic methane release from melting permafrost ... of the Arcticseaice is contentious. The IPCC Fourth Assessment Report of 2007 states that in some projections, Arctic late summer seaice disappears almost entirely by the latter part of the 21st century ... of the seaice. Preventing such ice loss is important for climate control, as the ArcticIce regulates ... entering through the Bering Strait could play a key role in preserving Arcticseaice. The purpose ... be free of summer seaice sometime between 2059 and 2078. ref cite doi 10.1038 ngeo467 ref Various geoengineering ... to prevent Arctic shrinkage ArcticIce Loss . These are detailed below. In addition, other solar ... gain . Professor Tim Lenton suggests that the retreat of seaice is such a process, and the tipping ... date March 2009 Additionally, the seaice has a wider regional climatic role, and acts to maintain ... sea. ref cite book last ACIA, Cambridge University Press, Arctic Climate Impact Assessment, Jim Berner ... pages 216 217 ref Building thicker seaice It has been proposed to actively enhance the polar ice cap by spraying or pumping water onto the top of it which would build thicker seaice. ref ... climate change 22thicker seaice 22 format Digitized online by Googlebooks accessdate 2009 01 02 year ... Re Ice the Arctic publisher Popular Science accessdate 04 March 2009 ref Citation broken date December 2010 Seaice is an effective thermal insulator , and thus freezing takes place much more rapidly on the top surface of the ice sheet than on the bottom. Thicker seaice is more structurally stable ...hatnote For geoengineering techniques and general issues that are not wholly specific to the Arctic , please ... more details
Plant ecology &ndash By biome under study Benthic ecology &ndash study of sea floor organisms, and their interaction with each other and with the environment Desert ecology &ndash Forest ecology &ndash Grassland ecology &ndash Marine ecology &ndash and aquatic ecology , where the dominant environmental milieu is water Urban ecology &ndash the study of ecosystems in urban areas. By geographic or climatic area under study Arcticecology &ndash Polar ecology &ndash Tropical ecology &ndash By spatial scale under study Global ecology &ndash which examines ecological phenomena at the largest possible ...See also Glossary of ecology The following outline is provided as an overview of and topical guide to ecologyEcology &ndash scientific study of the distribution and abundance of life living organisms ... and geology , as well as the other organisms that share its Habitat ecology habitat . Also called ecological science . Essence of ecology Main article Ecology Nature Natural environment &ndash Ecosystem Biome &ndash Community ecology Biocoenosis &ndash Species &ndash Organism &ndash Biodiversity &ndash Food web &ndash Subdisciplines of ecology, and subdiscipline classification Ecology is a broad discipline comprising many sub disciplines. The field of ecology can be sub divided according to several ... Ecophysiology Behavioral ecology &ndash examine adaptations of the individual to its environment. Population ecology &ndash studies the dynamics of populations of a single species. Community ecology .... Ecosystem ecology &ndash studies the flows of energy and matter through the biotic and abiotic components of ecosystem s. Systems ecology &ndash is an interdisciplinary field focusing on the study, development, and organization of ecological systems from a holistic perspective. Landscape ecology &ndash ... under study Animal ecology &ndash Biogeography &ndash the study of the geographic distributions of species Insect ecology &ndash Microbial ecology &ndash the ecology of micro organisms Paleoecology ... more details
Arctic studies may include Arcticecology Geology Meteorology Pedology soil study Pedology Oceanography disambig Category Earth sciences ... more details
ice age , walking over the frozen sea. The The Arctic Fox Center Arctic Fox Center in S av k contains ... less of its surface area is exposed to the arctic cold, less heat escapes the body. Its furry paws allow it to walk on ice in search of food. The arctic fox has such keen hearing that it can precisely ... of this fox Bering Sea Islands Bering Islands arctic fox, Vulpes lagopus beringensis Iceland ... arctic 20fox 20blue 20phase&f false page 42 title Ecology of North America author Eric G. Bolen publisher ...other uses pp protected expiry 2012 05 02T00 17 19Z small yes pp move indef Taxobox name Arctic fox ref ... range map Cypron Range Vulpes lagopus.svg range map caption Arctic fox range synonyms Alopex lagopus br Canis lagopus The arctic fox Vulpes lagopus , ref name iucn formerly known as Alopex lagopus , also known as the white fox , polar fox or snow fox , is a small fox native to Arctic regions of the Northern Hemisphere and is common throughout the Tundra Arctic tundra Arctic tundra biome . The Greek ... lagopus IMG 9019.JPG thumb left Vulpes lagopus arctic fox sleeping with its tail wrapped as a blanket. The arctic fox lives in some of the most frigid extremes on the planet. Among its adaptation s for cold ... animal facts mammals arctic fox.html Arctic Fox Alopex lagopus ref Reproduction The arctic fox tends ... of fur also changes color when summer arrives, but in winter it is white. Diet The arctic fox ... day. During April and May the arctic fox also preys on ringed seal pups when the young animals are confined to a snow den and are relatively helpless. Fish beneath the ice are also part of its diet ... The natural history of an Arctic oil field development and the biota url http books.google.com ... isbn 978 0 12 701235 3 pages 160 163 ref If there is an overabundance of food hunted, the arctic fox will bury what the family cannot eat. When its normal prey is scarce, the arctic fox scavenges the leftovers ... the arctic fox itself. Size The average length is convert 85.3 cm abbr on , with a range of convert ... more details
be found at sea, reaching the southern edge of the Antarctic ice. ref name RSPB Cite web url http ... volume 4 pages 197 207 ref Ecology and behaviour The diet of the Arctic Tern varies depending on location ...About a bird the aircraft named after it Arctic Aircraft Arctic Tern Taxobox name Arctic Tern status ... version 2011.1 downloaded 28 July 2011 ref status system iucn3.1 image Arctic terns.jpg image caption Two Arctic Terns regnum Animal ia phylum Chordate Chordata classis Bird Aves familia Sternidae ... species search.html?action SpcHTMDetails.asp&sid 3271&m 0 title Arctic Tern BirdLife Species Factsheet ... Sterna portlandica , Sterna pikei The Arctic Tern Sterna paradisaea is a seabird of the tern family ... covering the Arctic and sub Arctic regions of Europe , Asia , and North America as far south as Brittany ... miles each year. ref name Arctic terns flying feat Cite news url http www.reuters.com article idUSTRE60A4NV20100111 title Arctic terns flying feat accessdate 20 January 2010 work Reuters date 11 January 2010 ref This is by far the longest regular migration by any known animal. The Arctic Tern flies ... for another long southern migration. Arctic Terns are medium sized birds. They have a length of 33 ..., with grey outer webs. The hindcrown to the ear coverts is black. Arctic Terns are long lived birds ... in the southern reaches of its range. Distribution and migration The Arctic Tern has a worldwide ... title Arctic tern accessdate 17 August 2006 ref The Arctic Tern is famous for its migration it flies from its Arctic breeding grounds to the Antarctic and back again each year. This convert 19,000 ... long distance flying abilities involves an Arctic Tern bird ringing ringed as an unfledged chick on the Farne ... , in October 1982, a sea journey of over convert 22,000 km mi abbr on in just three months ... title Birds of Nova Scotia Arctic Tern accessdate 22 August 2006 publisher Nova Scotia Museum ... 2010 and showed that the above examples are in fact not unusual for the species eleven Arctic Terns ... more details
Unreferenced date December 2009 Orphan date December 2009 Ecology is a broad biological science and can be divided into many sub disciplines using various criteria. Many of these fields overlap, complement and inform each other. Indeed, few of these disciplines exist in isolation. For example, the population ecology of an organism is a consequence of its behavioral ecology and intimately tied to its community ecology . Methods from molecular ecology might inform the study of the population, and all kinds of data are modeled and analyzed using quantitative ecology techniques. When discussing the study of a single species, a distinction is usually made between its biology and its ecology . For example, polar bear biology might include the study of the polar bear s physiology , morphology biology morphology , pathology and ontogeny , whereas polar bear ecology would include a study of its prey species, its population and metapopulation status, distribution, dependence on environmental conditions, etc. In that sense, there can be as many subdisciplines of ecology as there are species to study. Other criteria Ecology can also be classified on the basis of the primary kinds of organism under study, e.g. animal ecology , plant ecology , insect ecology the biomes principally studied, e.g. forest ecology , grassland ecology , desert ecology , benthic ecology , marine ecology , urban ecology the geographic or climatic area, e.g. arcticecology , tropical ecology the spatial scale under consideration, e.g. macroecology , landscape ecology the philosophical approach, e.g. systems ecology which adopts a holistic approach the methods used, e.g. molecular ecology . List of subdisciplines Specialized branches of ecology include, among others DEFAULTSORT Ecology Disciplines Category Ecology ... more details
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