According to analysis by NASA and the National Snow and Ice Data Center, the Arctic sea ice maximum extent was reached on 17 March 2018. The Arctic sea ice cover peaked at 14.48 million square kilometers (5.59 million square miles), making it the second lowest maximum on record, at about 60,000 square kilometers (23,000 square miles) higher than the record low maximum reached on 7 March 2017 (see https://www.youtube.com/watch?v=a8egdMApWOk&list=PLpGTA7wMEDFjmZDVZNiCpdwP-mEOPNIzm ) The yellow line in the comparison indicates the 30 year average maximum extent calculated from 1981 through 2010. The date is shown in the upper left corner. Credits: NASA’s Goddard Space Flight Center NASA’s Scientific Visualization Studio The Blue Marble data is courtesy of Reto Stockli (NASA/GSFC) AMSR2 data courtesy of the Japan Aerospace Exploration Agency (JAXA)
Views: 24065 SciNews
VIDEO CREDIT: NOAA Since the 1980s, the amount of perennial ice in the Arctic has declined. This animation tracks the relative amount of ice of different ages from 1987 through early November 2015. The oldest ice is white; the youngest (seasonal) ice is dark blue. Key patterns are the export of ice from the Arctic through Fram Strait and the melting of old ice as it passes through the warm waters of the Beaufort Sea. In 1985, 20% of the Arctic ice pack was very old ice, but in March 2015, old ice only constituted 3% of the ice pack. Animation by NOAA Climate.gov team, based on research data provided by Mark Tschudi, CCAR, University of Colorado. Sea ice age is estimated by tracking of ice parcels using satellite imagery and drifting ocean buoys. References: Charctic Interactive Sea Ice Graph. National Snow and Ice Data Center. Accessed December 9, 2015. Perovich, D., W. Meier, M. Tschudi, S. Farrell, S. Gerland, and S. Hendricks. (2015). Chapter 4: Sea Ice. In Jeffries, M.O., Richter-Menge, J., Overland, J.E. (2015) Arctic Report Card: Update for 2015.
Views: 83387 climatecentral
For five months in 2015, a team of researchers drifted with polar ice, their ship tethered to an ice floe as they collected data to help them better understand how the loss of sea ice will affect the planet. The air above the Arctic Ocean has warmed on average about 5°F in the past century—more than twice the global average—and sea ice covers less and less of it. Most researchers study the ice during the summer. This team, battling bone-chilling cold, tracked it from when it formed in winter until it started melting in spring. And occasionally found time to kick a soccer ball around the floe. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta PRODUCER: Shannon Sanders VIDEOGRAPHER: Nick Cobbing VOICES: Algot Peterson (PHD Student, University of Bergen), Anna Siliakova (Oceanographer), Johnny Peder Hansen (Lance Captain), and Amelie Meyer (Oceanographer) Drifting With the Ice: Life on an Arctic Expedition | National Geographic https://youtu.be/tggPOOrGiwQ National Geographic https://www.youtube.com/natgeo
Views: 62763 National Geographic
Satellite Observation of Arctic Sea Ice Concentration 1991-2011, Daily Special Sensor Microwave/Imager (SSM/I) Algorithm: Lars Kaleschke. SSM/I Data: Sea-Ice drift vectors for Arctic & Antarctic (NSIDC). Visualization by Felicia Brisc, CliSAP Hamburg. http://www.clisap.de/clisap/people/felicia_brisc/ More animations available on the Climate Visualization Laboratory website: http://vis.clisap.de
Views: 3233 CEN Climate Visualization Laboratory
Satellite Observation of Arctic Sea Ice Concentration 1991-2012, Daily Special Sensor Microwave/Imager (SSM/I) Algorithm: Lars Kaleschke. SSM/I Data: Sea-Ice drift vectors for Arctic & Antarctic (NSIDC). Visualizatiom by Felicia Brisc, CliSAP Hamburg, http://www.clisap.de/clisap/people/felicia_brisc/
Views: 868 CEN Climate Visualization Laboratory
Music: Inside Me / Jesus And Mary Chain (1985). The Planet’s ice tipping point was passed before this track was recorded. 1 January —1 February University of Hamburg Arctic sea ice concentration plots: ftp://ftp-projects.cen.uni-hamburg.de/seaice/AMSR2/3.125km/
Views: 773 Going South
Satellite Observation of Arctic Sea Ice Concentration Jan 2007- Sept 2012, Daily Special Sensor Microwave/Imager (SSM/I) Algorithm: Lars Kaleschke. SSM/I Data: Sea-Ice drift vectors for Arctic & Antarctic (NSIDC). Visualized on the visualization server of the German Climate Computing Centre (DKRZ) by Felicia Brisc, CliSAP (http://www.clisap.de/clisap/people/felicia_brisc/)
Views: 680 CEN Climate Visualization Laboratory
FLYING OVER ARCTIC SEA ICE | Stunning NASA Footage - From the Cockpit: The Best of IceBridge Arctic 2013 - The views from the cockpit of NASA's P-3B aircraft on an Operation IceBridge campaign are truly stunning. The mission doesn't travel to both ends of the Earth for the scenery of course -- the airborne mission is there to collect radar, laser altimetry, and other data on the changing ice sheets, glaciers, and sea ice of the Arctic and Antarctic. But for those of us who aren't polar pilots, here's a selection of some of the best footage from the forward and nadir cameras mounted to the aircraft taken during IceBridge's spring deployment over Greenland and the Arctic Ocean. - SUBSCRIBE to Bright Enlightenment http://www.youtube.com/BrightEnlightenment - On FACEBOOK: http://www.Facebook.com/BrightEnlightenment - Visit our WEBSITE: http://www.BrightEnlightenment.com -TWITTER: https://twitter.com/BrightEnlight - GOOGLE+ https://plus.google.com/u/1/105692605238227581556/ Credit: NASA's Goddard Space Flight Center #NASA #documentary #flying #Greenland #SeaIce #ClimateChange #GlobalWarming #film #BrightEnlightenment
Views: 7210 Bright Enlightenment
A large cyclone that crossed the Arctic in December 2015 brought so much heat and humidity to this otherwise frigid environment that it thinned and shrunk the sea ice cover during a time when the ice should have been growing. Read more: http://www.nasa.gov/feature/goddard/2016/extremely-warm-2015-16-winter-cyclone-weakened-arctic-sea-ice-pack Credit: NASA's Goddard Space Flight Center/Kathryn Mersmann, producer This video is public domain and may be downloaded at: http://svs.gsfc.nasa.gov/12421 If you liked this video, subscribe to the NASA Goddard YouTube channel: http://www.youtube.com/NASAExplorer Or subscribe to NASA’s Goddard Shorts HD Podcast: http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html Follow NASA’s Goddard Space Flight Center · Facebook: http://www.facebook.com/NASA.GSFC · Twitter http://twitter.com/NASAGoddard · Flickr http://www.flickr.com/photos/gsfc/ · Instagram http://www.instagram.com/nasagoddard/ · Google+ http://plus.google.com/+NASAGoddard/posts
Views: 32297 NASA Goddard
A pair of new studies released on Monday share a same ominous message -- that our planet's ice is melting at an alarming rate, which is bad news for global sea levels. https://edition.cnn.com/2019/01/14/world/climate-change-antarctica-ice-melt-twin-studies/index.html Narration by Cormac Bren Antarctic ice-sheet sensitivity to obliquity forcing enhanced through ocean connections https://www.nature.com/articles/s41561-018-0284-4 Four decades of Antarctic Ice Sheet mass balance from 1979–2017 https://www.pnas.org/content/early/2019/01/08/1812883116 A record-low start to the new year in Antarctica http://nsidc.org/arcticseaicenews/2019/01/a-record-low-start-to-the-new-year-in-antarctica/ Evolution of #Antarctic melt season since November - its sea ice extent is currently around 1,000,000 square kilometers below average https://twitter.com/ZLabe/status/1086296356551979010 Catherine Walker: Global Warming and Changes in East Antarctic Glaciers #AGU2018 https://www.youtube.com/watch?v=2P9X7lLl5Iw Support Climate State http://patreon.com/ClimateState
Views: 24563 Climate State
(Published time: 30 Nov, 2015 16:56) Stunning video taken from a bird’s eye view by photographer Peter Cox shows icebergs and ice sheets rapidly melting in the Arctic. A recent report commissioned by the United Nations Environment Program said that global warming has been responsible for the melting ice around the North Pole. VIDEO Drone menangkap tahap Laut Artik ais CAIR Video yang telah dirakam dari pandangan mata burung oleh jurugambar Peter Cox menunjukkan bongkah ais dan lapisan ais cepat cair di Artik. Satu laporan baru-baru ini yang dijalankan oleh Program Alam Sekitar Bangsa-Bangsa Bersatu berkata bahawa pemanasan global telah bertanggungjawab untuk ais lebur cair sekitar Kutub Utara.
Views: 30204 SUARApribumi
Global sea ice levels, Arctic and Antarctic, were at their lowest point in the satellite record on 13 February 2017. Antarctic Sea Ice: Antarctic maximum - 31 August 2016, Antarctic minimum 3 March 2017 (2.11 million square kilometers) Arctic Sea Ice: Arctic minimum 10 September 2016, Arctic maximum 7 March 2017 (14.42 million square kilometers) On 13 February 2017, Global sea ice levels, the combined Arctic and Antarctic sea ice, were at their lowest point since satellites began to continuously measure sea ice in 1979. Total polar sea ice covered 6.26 million square miles (16.21 million square kilometers), which is 790,000 square miles (2 million square kilometers) less than the average global minimum extent for 1981-2010. Credits: NASA's Goddard Space Flight Center Scientific Visualization Studio The Blue Marble data is courtesy of Reto Stockli (NASA/GSFC) AMSR2 data courtesy of the Japan Aerospace Exploration Agency (JAXA)
Views: 2085 SciNews
As climate change progresses, the seasonal ice covering the Arctic Ocean is becoming not only less extensive but also much younger and thinner. Watch recent, dramatic changes in sea ice in this data visualization. Science Bulletins is a production of the National Center for Science Literacy, Education, and Technology (NCSLET), part of the Department of Education at the American Museum of Natural History. This visualization was supported by the National Oceanic and Atmospheric Administration (NOAA). Dataset for NOAA Science on a Sphere http://sos.noaa.gov/Datasets/dataset.php?id=378 General resources NOAA Climate Watch Magazine: Visual Highlights of the 2012 Arctic Report Card http://www.climatewatch.noaa.gov/article/2012/2012-arctic-report-card NOAA Arctic Theme Page http://www.arctic.noaa.gov NOAA ClimateWatch Magazine: Arctic Sea Ice Getting Thinner, Younger http://www.climatewatch.noaa.gov/article/2012/arctic-sea-ice-getting-thinner-younger NSIDC: All About Sea Ice http://nsidc.org/cryosphere/seaice NOAA ClimateWatch Magazine: Melt Pond "Skylights" Enable Massive Under-ice Bloom in Arctic http://www.climatewatch.noaa.gov/article/2012/melt-pond-skylights-enable-massive-under-ice-bloom-in-arctic NASA Goddard Multimedia: NASA Discovers Massive Phytoplankton Bloom Under Arctic Sea Ice http://svs.gsfc.nasa.gov/vis/a010000/a010900/a010907 Collaborators NOAA Environmental Visualization Laboratory http://www.nnvl.noaa.gov NOAA Climate Services http://www.climate.gov University of Colorado--Boulder: Colorado Center for Astrodynamics Research http://ccar.colorado.edu Clark University: Polar Science Research Laboratory http://wordpress.clarku.edu/kfrey/
Views: 5410 American Museum of Natural History
In this series of images from February 13 to March 2, from the Moderate Resolution Imaging Spectroradiometer (MODIS), a large crack expands in the sea ice near the coasts of Canada and Alaska. Black areas indicate where the satellite instrument did not collect data due to lack of sunlight. The dark area decreases as the sun rises in the Arctic. Credit: National Snow and Ice Data Center
Views: 18075 National Snow and Ice Data Center
Data: http://psc.apl.washington.edu/zhang/IDAO/data_piomas.html Reference: Zhang, Jinlun and D.A. Rothrock: Modeling global sea ice with a thickness and enthalpy distribution model in generalized curvilinear coordinates, Mon. Wea. Rev. 131(5), 681-697, 2003.
Views: 3744 Arctische Pinguin
Arctic sea ice shrank to its second lowest level ever recorded by scientists. They say it's another threatening sign of global warming. Every year, summer sea ice is measured or in recent years, the lack of it. Scientists say there are no signs of recovery. Al Jazeera's science editor Tarek Bazley explains. - Subscribe to our channel: http://aje.io/AJSubscribe - Follow us on Twitter: https://twitter.com/AJEnglish - Find us on Facebook: https://www.facebook.com/aljazeera - Check our website: http://www.aljazeera.com/
Views: 4044 Al Jazeera English
Developed by Aker Arctic, the icebreaking rescue vessel Baltika is the first ship ever built with an asymmetric hull that allows her to break ice not only ahead and astern, but also sideways. In this way, the relatively small oblique icebreaker is capable of opening a wide channel in ice. Completed in 2014, the new icebreaker was scheduled to undergo full scale ice trials this winter in order to confirm the vessel´s performance. Baltika departed from Murmansk on 20 March 2015 with the Aker Arctic team on board and sailed around the northern tip of Novaya Zemlya and across the Kara Sea to the Gulf of Ob, close to the Sabetta terminal area, to carry out the ice trials. The testing program consisted of performance tests in two distinct ice thicknesses in ahead and astern directions as well as in the oblique mode. Various operational tests were also carried out in order to determine the maneuverability and operational capability of the vessel. The thickness and strength of the ice was measured in the areas where tests were carried out. An automatic measurement system was set up to record ice loads on the ship’s hull through the whole three-week voyage which concluded in Murmansk on 10 April 2015. Although the ice conditions in the area were on the upper end of the vessel’s designed icebreaking capability and the ice in the Gulf of Ob was considerably stronger than typical sea ice, Baltika exceeded expectations and the required performance targets were passed with a clear margin. The vessel could break 1.2-metre level ice in continuous motion when proceeding bow first and could achieve a speed exceeding 3 knots in astern direction. The oblique mode, which had never been tested before in real life, also worked extremely well and the vessel fulfilled all the design requirements. During operational tests, Baltika also demonstrated excellent maneuverability and rubble clearing capability in the port of Sabetta as well as ability to penetrate heavy compressive ice ridges in the Kara Sea without ramming. According to Project Manager Mika Hovilainen who was on board the vessel during the ice trials, “Baltika’s voyage to the Gulf of Ob proves the exceptional operational capability of the oblique icebreaker concept in very difficult ice conditions. The vessel could operate in ice conditions that exceeded the design criteria used as the basis of the vessel concept. Baltika could carry out the same operations as conventional icebreakers with just half of the propulsion power as well as perform maneuvers which are not possible for any other vessel currently in service.” Baltika (IMO number 9649237) was built by Arctech Helsinki Shipyard (Helsinki, Finland) in co-operation with Shipyard Yantar JSC (Kaliningrad, Russia) based on Aker Arctic’s oblique icebreaker design , Aker ARC 100. The vessel is 76.4 metres long and has a beam of 20.5 metres, and has a diesel-electric power plant consisting of three Wärtsilä 9L26 generating sets with a combined output of 9 MW. Baltika is propelled by three 2.5 MW Steerprop azimuth thrusters, two in the stern and one in the bow of the vessel. The dynamic positioning system, which also includes the oblique icebreaking mode, has been developed by Navis Engineering. The vessel is classified by the Russian Maritime Register of Shipping and its ice class is Icebreaker6. In addition to icebreaking duties, the vessel is also fitted with a built-in oil recovery system. Baltika is owned by the Federal Agency for Maritime and River Transport of Russia (Rosmorrechflot) and operated by the Russian Marine Emergency Rescue Service (FGI Gosmorspassluzhba). * * * Music by zero-project (www.zero-project.gr); used under Creative Commons Attribution (CC BY) 3.0 Unported License.
Views: 541150 Aker Arctic
An analysis of Arctic sea ice, weather, and climate change related trends for the present week as temperatures in the far north surge to much warmer than normal. Links: https://twitter.com/ZLabe https://nsidc.org/data/seaice_index/images/daily_images/N_daily_extent_hires.png #Arctic #SeaIce #ClimateChange
Views: 2956 Robert Fanney
Satellite Observation of Antarctic Sea Ice Concentration 12/12/1991 - 24/01/2012, Daily Special Sensor Microwave/Imager (SSM/I) Algorithm: Lars Kaleschke. SSM/I Data: Sea-Ice drift vectors for Arctic & Antarctic (NSIDC). Visualization by Felicia Brisc, CliSAP Hamburg, http://www.clisap.de/clisap/people/felicia_brisc/ More videos are available on the Climate Visualization Laboratory website: http://vis.clisap.de
Views: 1229 CEN Climate Visualization Laboratory
Jinping ZHAO*1, David BARBER2, Shugang ZHANG1, Qinghua YANG3, Xiaoyu WANG1, and Hongjie XIE4 1Key Laboratory of Physical Oceanography, Ocean University of China, 238 Songling Road, Qingdao, 266100, China 2Centre for Earth Observation Science, Faculty of Environment Earth and Resources, University of Manitoba, Winnipeg, Manitoba , R3T 2N2, Canada 3National Marine Environmental Forecasting Center, China, 9 Dahuisi Road, Beijing, 100081, China 4Department of Geological Sciences, University of Texas at San Antonio, San Antonio, Texas 78284 , U.S. A. The Arctic sea-ice extent has shown a declining trend over the past 30 years. Ice coverage reached historic minima in 2007 and again in 2012. This trend has recently been assessed to be unique over at least the last 1450 years. In the summer of 2010, a very low sea-ice concentration (SIC) appeared at high Arctic latitudes---even lower than that of surrounding pack ice at lower latitudes. This striking low ice concentration---referred to here as a record low ice concentration in the central Arctic (CARLIC)---is unique in our analysis period of 2003--15, and has not been previously reported in the literature. The CARLIC was not the result of ice melt, because sea ice was still quite thick based on in-situ ice thickness measurements. Instead, divergent ice drift appears to have been responsible for the CARLIC. A high correlation between SIC and wind stress curl suggests that the sea ice drift during the summer of 2010 responded strongly to the regional wind forcing. The drift trajectori es of ice buoys exhibited a transpolar drift in the Atlantic sector and an eastward drift in the Pacific sector, which appeared to benefit the CARLIC in 2010. Under these conditions, more solar energy can penetrate into the open water, increasing melt through increased heat flux to the ocean. We speculate that this divergence of sea ice could occur more often in the coming decades, and impact on hemispheric SIC and feed back to the climate. http://188.8.131.52/aas/EN/10.1007/s00376-017-7066-6
Views: 3 Advances in Atmospheric Sciences
Ph.D. student researcher Melinda Webster and colleagues report decreasing snow depth on Arctic sea ice, especially in the Beaufort and Chukchi seas. Their findings are based on airborne and in situ measurements, plus historical data from the Soviet drifting ice stations. Snow has key roles in the growth and decay of Arctic sea ice each year. APL-UW research suggests that it is delayed freeze up in the fall that is contributing to the decreasing snow accumulations. www.apl.uw.edu/SnowDepth
Views: 149 APL - UW
Maps created by NASA JPL using over 5 million individual daily ice motion measurements captured over a period of years by four US Defense Meteorological satellites show, for the first time, the long-term changes in sea ice drift around Antarctica. Sea ice in Antarctica has been growing steadily.
Views: 16375 ClimateCentral
All the stories of low Arctic sea ice seem to be exaggerated as there is record sea ice off Newfoundland even with incredible pack ice 12 polar bears came ashore, a rarity and were put down by game officials as the danger to the public. Sea ic is not at record lows as they would have you believe, so much ice is there that new they are trying to confuse you with "Young Sea Ice" , hey sea ice is sea ice. It still has albedo effect and our planet has begin to cool. The mini ice age is here and intensifying. Don't get caught un-prepared stock up on survival food today! http://foodforliberty.com/adapt2030 Make Money Now Off Weather Predictions Here - https://tradegenius.co/go/ref/23 Rid Your Body of Unwanted Toxins Now! https://www.getthetea.com Support ADAPT 2030 on PATREON http://www.patreon.com/adapt2030 ADAPT 2030 Mini Ice Age FB Page https://www.facebook.com/Miniiceage Content Provided by David DuByne http://www.oilseedcrops.org You can also find this Mini Ice Age Conversations podcast on iTunes / Stitcher Radio / Soundcloud Podcast Lee Wheelbarger http://www.stitcher.com/podcast/adapt... https://polarbearscience.com/ https://polarbearscience.com/2017/04/22/sea-ice-off-newfoundland-thickest-ever-yet-another-polar-bear-comes-ashore/ https://thinkprogress.org/arctic-meltdown-sea-and-land-ice-are-cracking-up-at-a-record-pace-353a83c0121c https://nsidc.org/arcticseaicenews/ https://robertscribbler.com/author/robertscribbler/ New ‘Karl-buster’ paper confirms ‘the pause’, and climate models failure https://wattsupwiththat.com/2017/04/17/new-karl-buster-paper-confirms-the-pause-and-models-failure/ http://www.nature.com/nclimate/journal/vaop/ncurrent/full/nclimate3274.html Dissent in the climate ranks over Karl’s “pause buster” temperature data tweaking https://wattsupwiththat.com/2015/10/27/dissent-in-the-climate-ranks-over-karls-pause-buster-temperature-data-tweaking/ Greenland Interactive Ice Chart http://nsidc.org/greenland-today/greenland-surface-melt-extent-interactive-chart/ UAH Global Temperature Update for March, 2017: +0.19 deg. C http://www.drroyspencer.com/2017/04/uah-global-temperature-update-for-march-2017-0-19-deg-c/ 2015 March Data temperature set http://www.drroyspencer.com/2016/04/
Views: 9576 Adapt 2030
Regular or anomalous? View daily Arctic sea ice cover against average (1992-2001) conditions. Satellite Observation of Arctic Sea Ice Concentration 1991-2011, Daily Special Sensor Microwave/Imager (SSM/I) Algorithm: Lars Kaleschke. SSM/I Data: Sea-Ice drift vectors for Arctic & Antarctic (NSIDC). Visualization by Felicia Brisc, CliSAP Hamburg, http://www.clisap.de/clisap/people/felicia_brisc/
Views: 516 CEN Climate Visualization Laboratory
This visualization shows the seasonal variability of the weekly sea ice age between 1984 and 2016, growing in the Arctic winter and melting in the summer. Changes from year to year are also evident. Ice age is depicted in different colors. Younger sea ice, or first-year ice, is shown in a dark shade of blue while the ice that is four years old or older is shown as white. A color scale identifies the age of the intermediary years. One significant change in the Arctic region in recent years has been the rapid decline in perennial sea ice. Perennial sea ice, also known as multi-year ice, is the portion of the sea ice that survives the summer melt season. Perennial ice may have a life-span of nine years or more and represents the thickest component of the sea ice; perennial ice can grow up to four meters thick. By contrast, first year ice that grows during a single winter is generally at most two meters thick. A graph in the lower, right corner the quantifies the change over time by showing the area in millions of square kilometers covered by each age category of perennial sea ice. This graph also includes a memory bar - the green line that here represents the current maximum value seen thus far in the visualization for the particular week displayed. For example, when showing the first week in September, the memory bar will show the maximum value seen for all prior years' first week of September since the beginning of the visualization (January 1, 1984). A graph in the lower, left corner the quantifies the change over time by showing each age category of sea ice as a percent of total ice cover in the Arctic Ocean. The lavender outline on the map indicates the spatial region covered by the Arctic Ocean and thus included in the graph. For more information or to download this public domain video, go to https://svs.gsfc.nasa.gov/4522#62510
Views: 2463 NASA Scientific Visualization Studio
NASA spots mysterious holes in the Arctic ocean ice cover. In this video NASA have announced they discovered mysterious holes in the Arctic. NASA recently shared with us an image of a snowy icy expanse dotted by odd roundish features and challenged the public to figure out what it is. While some have come forward suggesting it's part of NASA’s Operation IceBridge airborne mission, which shows the eastern Arctic Ocean’s Beaufort Sea, the mysterious looking holes still remain a mystery. Thank you for watching! Thank you to Dave Lennon-Copeland for providing the background music!
Views: 16251 Unexplained Mysteries
Arctic Sea Ice Continues Decline, Hits 2nd-Lowest Level10.04.11 Last month the extent of sea ice covering the Arctic Ocean declined to the second-lowest extent on record. Satellite data from NASA and the NASA-supported National Snow and Ice Data Center (NSIDC) at the University of Colorado in Boulder showed that the summertime sea ice cover narrowly avoided a new record low. The Arctic ice cap grows each winter as the sun sets for several months and shrinks each summer as the sun rises higher in the northern sky. Each year the Arctic sea ice reaches its annual minimum extent in September. It hit a record low in 2007. The near-record ice-melt followed higher-than-average summer temperatures, but without the unusual weather conditions that contributed to the extreme melt of 2007. "Atmospheric and oceanic conditions were not as conducive to ice loss this year, but the melt still neared 2007 levels," said NSIDC scientist Walt Meier. "This probably reflects loss of multiyear ice in the Beaufort and Chukchi seas as well as other factors that are making the ice more vulnerable." Joey Comiso, senior scientist at NASA's Goddard Space Flight Center in Greenbelt, Md., said the continued low minimum sea ice levels fits into the large-scale decline pattern that scientists have watched unfold over the past three decades. "The sea ice is not only declining, the pace of the decline is becoming more drastic," Comiso said. "The older, thicker ice is declining faster than the rest, making for a more vulnerable perennial ice cover." While the sea ice extent did not dip below the 2007 record, the sea ice area as measured by the microwave radiometer on NASA's Aqua satellite did drop slightly lower than 2007 levels for about 10 days in early September, Comiso said. Sea ice "area" differs from extent in that it equals the actual surface area covered by ice, while extent includes any area where ice covers at least 15 percent of the ocean. Arctic sea ice extent on Sept. 9, the lowest point this year, was 4.33 million square kilometers (1.67 million square miles). Averaged over the month of September, ice extent was 4.61 million square kilometers (1.78 million square miles). This places 2011 as the second lowest ice extent both for the daily minimum extent and the monthly average. Ice extent was 2.43 million square kilometers (938,000 square miles) below the 1979 to 2000 average. This summer's low ice extent continued the downward trend seen over the last 30 years, which scientists attribute largely to warming temperatures caused by climate change. Data show that Arctic sea ice has been declining both in extent and thickness. Since 1979, September Arctic sea ice extent has declined by 12 percent per decade. "The oldest and thickest ice in the Arctic continues to decline, especially in the Beaufort Sea and the Canada Basin," NSIDC scientist Julienne Stroeve said. "This appears to be an important driver for the low sea ice conditions over the past few summers." Climate models have suggested that the Arctic could lose almost all of its summer ice cover by 2100, but in recent years, ice extent has declined faster than the models predicted. NASA monitors and studies changing sea ice conditions in both the Arctic and Antarctic with a variety of spaceborne and airborne research capabilities. This month NASA resumes Operation IceBridge, a multi-year series of flights over sea ice and ice sheets at both poles. This fall's campaign will be based out of Punta Arenas, Chile, and make flights over Antarctica. NASA also continues work toward launching ICESat-2 in 2016, which will continue its predecessor's crucial laser altimetry observations of ice cover from space. Patrick Lynch NASA's Earth Science News Team: http://www.nasa.gov/topics/earth/index.html
Views: 295 Mystery Hunter
September Minimum 2016 // 2nd lowest ice extent in history of satellite measurements // compared with former decades Visualisation by CEN Universität Hamburg, Lars Kaleschke, Felicia Brisc, DKRZ. The help and contribution of Dr. Niklas Röber (DKRZ) to the completion of this visualization are gratefully acknowledged. More information: https://www.cen.uni-hamburg.de/en/about-cen/news/2016-09-13-arctic-sea-ice-2016.html
Views: 183 CEN Climate Visualization Laboratory
Animation of daily satellite images of the Arctic showing the day-to-day displacement of sea ice. See http://osisaf.met.no for access to sea ice drift vectors (not shown) automatically processed by the OSI SAF EUMETSAT from similar images. Satellite data is from the AMSR-E instrument on board NASA Aqua platform.
Views: 944 osisaf
Our climate system has destabilized. Our fossil-fueled emissions have changed the chemistry of our atmosphere and our oceans, changing the heat balance between the equator and Arctic. This has fractured the jet streams, and brings us closer to a new planet with zero snow and ice in the Arctic. Here is what is happening...
Views: 4556 Paul Beckwith
The Arctic Ocean is virtually surrounded by land. The blanket of sea ice that forms there during the winter isn't completely free to drift away into warmer, southern waters. Because of that geography, it's common for sea ice to linger for many years at high latitudes, growing thicker and stronger, which makes it more likely to survive the summer melt. Or at least, it used to be common. The animation above shows how dramatically the amount of multi-year ice (ice that has survived at least one summer melt season) in the Arctic has decreased over the past two decades. Based on satellite tracking of ice parcels over time, the maps show the estimated age of sea ice once a week from January 1987 through mid-summer 2011. Ice age increases from darkest blue (1 year old) to white (9 or more years old). At the outermost edges of the ocean basin, the ice is seasonal: it forms every winter and melts every summer. Off the northeast coast of Greenland, a river of old ice continually flows out of the Arctic through the Fram Strait into warmer waters. Natural climate patterns accelerate the loss in some years and slow it down in others. Historically, that ice river was the major route by which the Arctic lost its very old ice. The export was balanced by ocean currents and wind patterns on the other side of the Arctic. Young sea ice gets caught up in the giant loop current called the Beaufort Gyre. The ice could remain in the gyre for years, circling around and around the central Arctic through the Beaufort and Chuchki Seas, growing thicker. The Beaufort Gyre was an incubator for growing multi-year ice. Since the late 1990s, however, the ice traveling through the southern part of the gyre rarely survives the summer melt. In other words, sea ice gets far less time in the incubator. In the mid-1980s, roughly 75 percent of the Arctic ice pack at the yearly maximum in March had survived at least one summer melt season; today only 45 percent has. Since the record low sea ice extent that occurred in summer 2007, no very old ice (9 or more years old) is left in the central Arctic basin. Only a thin ribbon remains tucked up against the islands of the Canadian Arctic. The loss of the multi-year ice is both a result of climate change and, ultimately, an accelerator of it. The less old ice there is in the ice pack, the more easily the ice melts in the summer. The more ice that melts, the more of the ocean that's exposed to the 24-hour summer Sun. Bright white ice reflects incoming sunlight, but dark ocean water absorbs it, heating the ocean and accelerating warming. credit: James Maslanik, Ned Gardiner, Hunter Allen, Richard Rivera, Rebecca Lindsey source: http://www.climatewatch.noaa.gov/video/2011/old-ice-becoming-rare-in-arctic
Views: 3053 djxatlanta
Read more about Principal Research Scientist Patrick Heimbach's work in MIT's Department of Earth, Atmospheric and Planetary Sciences at MIT News: http://web.mit.edu/newsoffice/2012/ocean-currents-and-sea-ice-1121.html The MITgcm website: http://mitgcm.org And the website for NASA's ECCO2: http://ecco2.org About the animation: The simulation was conducted with the MIT coupled ocean-sea ice general circulation model, or in short, MITgcm. The configuration was constructed as part of the Estimating the Circulation and Climate of the Ocean Phase II, or ECCO2 project. It was run by project partners Gunnar Spreen and Dimitris Menemenlis at NASA's Jet Propulsion Laboratory on NASA's supercomputer "Pleiades" at the Ames Research Center in Moffett Field, California. Tim Sandstrom at NASA's Advanced Supercomputing Division performed the visualization of the simulations. Image Credits: Earth System Research Laboratory, NOAA, http://www.esrl.noaa.gov/csd/projects/arcpac/ European Space Agency (ESA) CryoSat Mission, http://www.esa.int/SPECIALS/Cryosat/ National Aeronautics and Space Agency (NASA) Earth Observatory, http://earthobservatory.nasa.gov/ NASA Goddard Space Flight Center (NASA/GSFC), http://www.flickr.com/photos/gsfc/sets/ National Snow and Ice Data Center (NSIDC), http://nsidc.org/arcticseaicenews/ Alfred-Wegener Institute for Polar and Marine Research (AWI), http://www.awi.de/
Views: 7204 Massachusetts Institute of Technology (MIT)
New research suggests that phytoplankton is blooming in arctic waters below sea ice. Due to rising temperatures in the Arctic, skylights are forming in sea ice that allow sunlight to pass through the ice and into the waters below. With similar conditions covering 30-percent of the ice-covered Arctic Ocean, micro-algae is booming as a result. But the team of researchers were stunned to discovery a sprawling bloom of the microscopic plants. But sea ice has thinned as average annual temperatures continue to rise. The researchers found that meltwater pools on top of the ice that allow light to pass through are becoming more prevalent. https://www.sciencenews.org/article/thinning-ice-creates-undersea-arctic-greenhouses http://www.wochit.com This video was produced by YT Wochit News using http://wochit.com
Views: 332 Wochit News
Animation by Arctic Portal Team (http://arcticportal.org), based on research data provided by Mark Tschudi, CCAR, University of Colorado. http://nsidc.org/data/docs/daac/nsidc0611-sea-ice-age/ The animation highlights the scarcity of ancient ice for over 20 years.
Views: 80 Arctic Portal
Documentaries, Documentary, Nature, National Geographic - Under the Antarctic Ice - Nature Documentary . Nature Documentary. National Geographic, Documentary, Nature, documentary nature, documentary national geographic, nature documentary, nation nature, nature geographic. national geographic documentaries, documentaries national geographic, documentaries films, documentaries hd, nature documentaries. watch documentary, watch documentary films. [nature documentary] Watch more documentary: https://www.youtube.com/watch?v=hgOlZVG2RZs&list=PLTEq-I2WHEVgLvnFhFdBs43-rlm6uCGN- The Antarctic ice sheet is one of the two polar ice caps of the Earth. [nature documentary] It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km (5.4 million sq. miles) and contains 26.5 million cubic km of ice (6.36 million cubic miles). That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to about 70 m of water in the world's oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. Much of the land in this area would be seabed if the ice sheet were not there. [nature documentary] National Geographic - Under the Antarctic Ice - Nature Documentary. Documentary National Geographic, National Geographic Documentary, Documentary Films, Documentaries. national geographic documentaries, documentaries national geographic, documentaries films, documentaries hd, nature documentaries. In contrast to the melting of the Arctic sea ice, sea ice around Antarctica has expanded in recent years. The reasons for this are not fully understood, but suggestions include the climatic effects on ocean and atmospheric circulation of the ozone hole, and/or cooler ocean surface temperatures as the warming deep waters melt the ice shelves. [nature documentary] https://www.youtube.com/watch?v=-HhD2-OO_js Keywork Channel: Nature Documentary, National Geographic, Documentary, Nature, documentary nature, documentary national geographic, nature documentary, nation nature, nature geographic. national geographic documentaries, documentaries national geographic, documentaries films, documentaries hd, nature documentaries, documen, document, docu, doc, documenta, documentar, documentari, documetarie, documentaries. [nature documentary] --------------------------- The Universe (Wikipedia) The Universe is all of time and space and its contents. The Universe includes planets, stars, galaxies, the contents of intergalactic space, the smallest subatomic particles, and all matter and energy. The observable universe is about 28 billion parsecs (91 billion light-years) in diameter at the present time. The size of the whole Universe is not known and may be infinite. Observations and the development of physical theories have led to inferences about the composition and evolution of the Universe. Throughout recorded history, cosmologies and cosmogonies, including scientific models, have been proposed to explain observations of the Universe. The earliest quantitative geocentric models were developed by ancient Greek philosophers and Indian philosophers. Over the centuries, more precise astronomical observations led to Nicolaus Copernicus's heliocentric model of the Solar System and Johannes Kepler's improvement on that model with elliptical orbits, which was eventually explained by Isaac Newton's theory of gravity. Further observational improvements led to the realization that the Solar System is located in a galaxy composed of billions of stars, the Milky Way. It was subsequently discovered that our galaxy is just one of many. On the largest scales, it is assumed that the distribution of galaxies is uniform and the same in all directions, meaning that the Universe has neither an edge nor a center. Observations of the distribution of these galaxies and their spectral lines have led to many of the theories of modern physical cosmology. The discovery in the early 20th century that galaxies are systematically redshifted suggested that the Universe is expanding, and the discovery of the cosmic microwave background radiation suggested that the Universe had a beginning.Finally, observations in the late 1990s indicated the rate of the expansion of the Universe is increasing indicating that the majority of energy is most likely in an unknown form called dark energy. The majority of mass in the universe also appears to exist in an unknown form, called dark matter. [nature documentary] ----------------------------- Note: Video not belong me. All rights belongs to respective owners and creator!
Views: 94395 ChannelM
SUBSCRIBE to the OFFICIAL BBC YouTube channel: https://bit.ly/2IXqEIn LAUNCH BBC iPlayer to access Live TV and Box Sets: https://bbc.in/2J18jYJ Programme website: http://bbc.in/1iD3ju5 As the sea ice begins to break up in Summer, a polar bear ingeniously uses the drift ice to sneak up on a seal.
Views: 9078381 BBC
Read more here: http://ow.ly/f4r8305LRT7 What are the top stories today? Click to watch: https://www.youtube.com/playlist?list=PLSyY1udCyYqBeDOz400FlseNGNqReKkFd euronews: the most watched news channel in Europe Subscribe! http://www.youtube.com/subscription_center?add_user=euronews euronews is available in 13 languages: https://www.youtube.com/user/euronewsnetwork/channels In English: Website: http://www.euronews.com/news Facebook: https://www.facebook.com/euronews Twitter: http://twitter.com/euronews Google+: http://google.com/+euronews VKontakte: http://vk.com/en.euronews
Views: 15177 euronews (in English)
Like us on Facebook http://www.Facebook.com/FoxStarIndia Click here to Share this video on Facebook - http://goo.gl/12dp8C Click here Tweet this video - http://goo.gl/ovTaEJ Manny, Diego, and Sid embark upon another adventure after their continent is set adrift. Using an iceberg as a ship, they encounter sea creatures and battle pirates as they explore a new world. The movie stars Ray Romano, Denis Leary and John Leguizamo, Queen Latifah. The movie is directed by Steve Martino and Mike Thurmeier For more Updates, visit http://www.youtube.com/foxstarindia
Views: 2078429 Fox Star India
This is a time-lapse of the web cam located North of Barrow, AK at NARL, overlooking landfast ice in the Arctic Ocean (Chukchi Sea). One photo per day, spanning the entire annual cycle including sea ice drift and growth (October), and decay and break-up (June/July). Time-lapse spans September 2000 until August 2001. The camera is located atop the UIC Science Center at NARRL, 5 miles NE of Barrow, facing approximately NW. See http://www.gi.alaska.edu/snowice/sea-lake-ice/barrow_webcam.html for today's sea ice webcam image in downtown Barrow.
Views: 744 42smurf
This visualization shows the annual change in sea ice age at each year's minimum extent. Younger sea ice, or first-year ice, is shown in a dark shade of blue while the ice that is four years old or older is shown as white. A bar graph displayed in the lower right corner quantifies the area covered by the ice in each age category on the day of the annual minimum. In addition, memory bars shown in green portray the maximum annual value for each age range seen since January 1, 1984 on the day of the annual minimum. One significant change in the Arctic region in recent years has been the rapid decline in perennial sea ice. Perennial sea ice, also known as multi-year ice, is the portion of the sea ice that survives the summer melt season. Perennial ice may have a life-span of nine years or more and represents the thickest component of the sea ice; perennial ice can grow up to four meters thick. By contrast, first year ice that grows during a single winter is generally at most two meters thick. For more information or to download this public domain video, go to https://svs.gsfc.nasa.gov/4489#54262
Views: 737 NASA Scientific Visualization Studio
This video is about the TOPtoTOP Expedition, trapped in the Pack Ice in the Arctic near the East Greenland Coast in July 2017 for 16 hours. We were 12 people. Sabine is expecting our next child on the 21st of August: We were trapped for 16 hours in the Arctic pack ice on our attempt to make landfall close to Turner Island, where the Inuits have found a hot spring. Unfortunately, there were too many clouds to define the exact density of pack ice from the sat picture. The ice chart was about one week old and underestimated the pack ice. We could see a stretch of open water close to shore on the sat pic that leads finally to the settlement of Ittoqqotoormiit, but there was no way to pass the heavy pack. It was time-consuming and not easy to find a way out in the sometimes dense fog, that is created by the cold ice. We used all our senses and suddenly heard some surf, expecting it from the swell that crashes against the outer line of the pack. Like this, we had an idea about the shortest distance out of the pack and in which direction to navigate to get free and back in open waters. The radar was useless because the flat pack didn't reflect the signal very well. Close to the limit of the pack ice the fog disappeared. From the top of the mast, we could see the open sea but at first no way through the last barrier of ice. It took Dario a while to study the ice to define the most promising channel to risk an attempt. All hands were on deck, outfitted with fenders and a stick to push the ice. Thanks to the great team work of each crew member, we managed to come through. We changed our strategy and sailed Northeast in open waters along the edge of the pack. From an older satellite picture, we hoped that we have a chance to get through this belt of ice coming more from the North into Scoresby Sound. Unfortunately, it did not get better and we changed course on 70 N / 20 W towards Grimsey Island at the Arctic Circle.
Views: 1259 Dario Schwoerer
Arctic sea ice levels hit a record low for a third consecutive year. Scientists with NASA and the National Snow and Ice Data Center measured sea ice covering 14.42 million square kilometers. According to recordkeeping dating back to 1979, that is the smallest maximum extent of arctic ice on record. Compared to last year's record low, ice covering the Arctic Ocean lost about 100,000 square kilometers. Satellite observations also showed that winter ice levels are also thinner when compared to recent years. Those observations suggest that unusually warm autumn and winter temperatures have had a global effect. https://www.sciencenews.org/blog/science-ticker/arctic-sea-ice-hits-record-wintertime-low http://www.wochit.com This video was produced by YT Wochit News using http://wochit.com
Views: 233 Wochit News
For the next two weeks, we will be exploring the land of the polar bears with the Young Explorers. I'm very excited about this expedition but one thing bothers me. Will we see polar bears again? Did you know a polar bear can swim 100km or more without a break. BUT, the ice has moved 150km away from land today. The polar bears drown -- not only because of the greater distance but also because the waves that form due to the lack of sea ice. *shot on a GoPro !! Mike Horn on passing the Ballot Strait in July 2011: "The Ballot Strait lived up to its reputation as a dangerous passage. Strong currents, pack ice and very narrow waterway makes it a dangerous, tight squeeze! As we sailed into the strait it was more or less clear of ice. Twenty minutes later, we were tossed about like a cocktail in a blender. Pack ice all around us was pushing us towards the side. I gave the oder to open the genoa sail and slowly Pangaea started edging foreward...... We made it through, and saw our first polar bear on this trip." The 9th of 12 expeditions slated for Mike Horn's vessel, Pangaea, scheduled from 2008-2012 is destined for the Canadian territory of Nunavut. 'Nunavut' in the Inuit language means "our land". The territory includes part of the mainland and most of the Arctic Archipelago. It is the largest territory in Canada and accounts for 1/5 of the country!
Views: 7610 pangaeaexpedition
Arctic sea ice has reached its peak winter extent for the year, and it’s the lowest winter maximum on record. OSLO — Arctic sea ice has set a new winter record by freezing to the smallest maximum extent in satellite records dating back to 1979 in new evidence of long-term climate change, U.S. data showed on Thursday. The ice floating on the Arctic Ocean around the North Pole reached a maximum extent of 5.61 million square miles on Feb. 25 — an area slightly bigger than Canada — and is now expected to shrink with the spring thaw. “This year’s maximum ice extent was the lowest in the satellite record, with below-average ice conditions everywhere except in the Labrador Sea and Davis Strait,” the National Snow and Ice Data Center said in a statement. It said that a late season surge in ice was still possible because of big natural variations. The previous lowest maximum was set in 2011. The ice usually reaches its annual maximum in March and, with the return of the sun to the Arctic after months of winter darkness, shrinks to its smallest in summertime in September. The U.N. panel of climate scientists links the long-term shrinkage of the ice to climate change and says that Arctic summertime ice could vanish in the second half of the century. The thaw is affecting indigenous lifestyles in the Arctic and making the region more accessible for oil and gas exploration, mining, shipping and tourism. Scientists say Arctic sea ice just set a disturbing new record Two weeks ago, we noted here that the Arctic was on the verge of a scary new record — an unprecedented “lowest winter maximum” for sea ice extent. What that would mean is that during the season of the year when there is the most ice covering the seas of the Arctic, the peak extent of that ice was nonetheless smaller than in any year – at least since satellite measurements began in the late 1970s. And now, the Boulder-based National Snow and Ice Data Center (NSIDC), which tracks sea ice, has indeed announced that the peak winter Arctic sea ice extent “likely” occurred Feb. 25, and that this maximum “not only occurred early; it is also the lowest in the satellite record.” However, the agency does include several caveats. That includes not only the word “likely,” but also the observation that “a late season surge in ice growth is still possible.” The loss of sea ice around the Arctic has a vast number of consequences. They range from climatic — exposing more dark ocean water, which absorbs more solar radiation than ice does, leading to further warming — to social and cultural: Undermining the subsistence hunting techniques that Alaskan native villages have pursued atop the ice for generations. New record low for extent of Arctic sea ice The extent of Arctic sea ice has set a new record low. The U.S.-based National Snow and Ice Data Center says the ice appears to have reached its maximum spread for the winter. It says this year’s ice is about seven per cent below the 30-year average. Federal ice researchers say this year’s maximum Arctic sea ice extent, reached Feb. 25, is the lowest on record during the satellite era, about 50,000 square miles smaller than the previous record set in 2011. While a shift in wind patterns could result in some additional growth, it’s unlikely the sea ice will expand past the extent reached on that date. The maximum sea ice extent reached 5.61 million square miles, with below-average ice conditions everywhere except in the Labrador Sea and Davis Strait, according to the latest update from the National Snow and Ice Data Center. Read the full NSIDC post here. Tracking the ice cover by satellite, the NSIDC reported that total growth for the winter season was slower than last winter, when there was record growth of sea ice at times. But in February 2015, a north-south looping jet stream brought warm air to the Pacific side of the Arctic and up from Iceland toward the the Barents and Kara seas. As a result, temperatures throughout the eastern Arctic at about 3,000 feet altitude were several degrees Celsius above average, with temperatures as much as 8 to 10 degrees Celsius (14 to 18 degrees Fahrenheit) above average in the Barents Sea between Svalbard and Franz Josef Land. MARCH 2015 FOOTAGE
Views: 234 gorapapo TV