The graph above shows Arctic sea ice extent as of July 15, 2020, along with daily ice extent data for four previous years and the record low year. Credit: Kevin Wood, University of Washington Joint Institute for the Study of the Atmosphere and Ocean (JISAO) and the NOAA Pacific Marine Environmental Laboratory High-resolution image, Figure 6b. Summer weather conditions in the Arctic Ocean exert tremendous influence on the minimum extent, and those conditions cannot be predicted from sea ice extent at the end of winter. There was great interest in potential links between strong Arctic warming and mid-latitude weather patterns. About the dataCredit: National Snow and Ice Data CenterHigh-resolution image. Your burning questions about snow and ice. When the Chukchi waters finally lost their heat, the Arctic was in 24-hour darkness and the cold atmosphere allowed ice to grow rapidly. The NASA Goddard Institute for Space Studies data record shows that the 2019 annual average Arctic temperatures were the second highest in the satellite record, below 2016. The gray areas around the median line show the interquartile and interdecile ranges of the data. After seeming to reach its yearly peak, sea ice extent might resume growing at this time of year. Contact NSIDC User Services or call +1 303.492.6199 The gold line shows the median ice extent for this date over 1981–2010, an area of 6.04 million square miles (15.64 million square kilometers). The September minimum extent ended up tied with 2007 and 2016 for second lowest in the satellite record. This initiated heated debate within the science community. doi:10.1002/2016GL070067. 2016. August 2020: Following intense summer heat, Arctic sea ice melts to its second-lowest extent on record, nearly reaching 2012 levels. It was the 11th-lowest maximum in the 42-year satellite record. A further analysis of the ongoing Greenland melt season will be forthcoming in early August in our Greenland Today analysis. Sea Ice Index data. During May and June, the rate of ice loss remained well below average. Melt spikes are associated with warm air advection and cloud cover associated with the passage of weather systems. Compared to the 1980s, very little sea ice survives multiple years in the Arctic now. More moderate declines thereafter kept extents low, but well above record values, through the end of 2019. Arctic Sea Ice News and Analysis. The climate of the Arctic is characterized by long, cold winters and short, cool summers. Arctic thickness and volume also remained low throughout the decade, as indicated by the Pan-Arctic Ice Ocean Modeling and Assimilation System (PIOMAS) volume estimates and thickness estimates from the European Space Agency (ESA) CryoSat-2 satellite. The record low Bering Sea ice extent in 2018: Context, impacts, and an assessment of the role of anthropogenic climate change. This color-coded map shows Arctic sea ice concentration on March 5, 2020. The Northern Sea route appears to be nearly open. However, modeling studies indicate that natural climate variability will play a big role in determining the first occurrence of a seasonally ice free Arctic Ocean, with at least a 20-year uncertainty window (Jahn et al., 2016). Also spanning the decade was NASA Operation IceBridge, an airborne mission that flew over sea ice and land ice for over 10 years, filling in key observational gaps between ICESat, which de-orbited in 2010, and ICESat-2, which launched in 2018. It will allow the first careful assessment of Antarctic sea ice mass, and over time, the trend in mass, if any. Petty. Press direct line: +1 303.492.1497. The graph above shows Arctic sea ice extent as of January 6, 2020, along with daily ice extent data for four previous years and the record low year. This is the fifth lowest December extent in the satellite record, above the record low mark set in 2016 as well as 2018, 1982, and 1979. Sea ice age fields show that multiyear ice, or ice that has survived at least one summer melt season, covered about 30 percent of the Arctic Ocean winter ice cover on average during the 2010s compared to about 50 percent in the 1980s. The reason is that over most longitudes, ice extends to the coast and, thus, cannot grow southward. This may reflect later freeze up and earlier melt onset indicative of higher spring and autumn temperatures. Moving the instruments and cables to a new site would require a major effort from the group, but gathering data from first-year ice would be valuable. Stroeve is part of the “Remote Sensing City” group, a team that is using passive and active microwave instruments to study the sea ice and to gather improved information on sea ice thickness and snow depth. Another way to examine decadal changes is by comparing decadal averages. Antarctic sea ice extent for December 2019 was 9.30 million square kilometers (3.59 million square miles). In December, the Chukchi Sea finally completely refroze, Hudson Bay iced over, and sea ice extended south into the Bering Sea. Figure 2a. The Siberian heat wave this past spring initiated early ice retreat along the Russian coast, leading to very low sea ice extent in the Laptev and Barents Seas. In mid-December, NSIDC senior research scientist and ASINA-contributor Julienne Stroeve joined the second leg of the Multidisciplinary drifting Observatory for the Study of Arctic Change (MOSAiC) expedition. A collaborative network of scientists and stakeholders to advance research on sea ice prediction and communicate sea ice knowledge and tools. Some studies found support for the hypothesis, but others presented contradicting evidence (Cohen et al., 2019). Extent in the 1990s was lower than the 1980s, extent in the 2000s was lower than the 1990s, and the 2010s had the lowest extent (Figure 7a and 7b). NSIDC Distributed Active Archive Center scientist and ASINA-contributor Walt Meier was a co-author on a recently-published study (Thoman et al., 2020) reporting that the extreme low sea ice extent in this region was unlikely to have occurred without anthropogenic warming. Throughout the year, below average extent characterized Arctic sea ice, but with much variation. There is a large amount of variability in climate across the Arctic, but all regions experience extremes of solar radiation in both summer and winter. The story is much different in the Antarctic. Home | Contact Us This is faster than the 1981 to 2010 average gain of 64,100 square kilometers (24,700 square miles per day) and is the third fastest December ice growth rate in the satellite record, behind 2006 and 2016. 2020. October and April showed the largest downward trends during the decade of 10.3 percent and 8.3 percent, respectively. A study by colleague Ron Kwok demonstrated the efficacy of the approach at cross-over point for the two satellite’s orbit tracks. Contact NSIDC User Services or call +1 303.492.6199 In contrast to recent years, the 2020 wintertime sea ice extents were closer to the long-term average in the Barents Sea (north of Norway and western Russia) and the Bering Sea (south of the Bering Strait between Russia and Alaska). This is comparable to the size of Alaska and California combined. On December 10, the National Oceanic and Atmospheric Administration (NOAA) 2019 Arctic Report Card was released at the American Geophysical Union Fall Meeting in San Francisco. The Intergovernmental Panel on Climate Change recently published their Special Report on the Oceans and Cryosphere in a Changing Climate, providing an overview of the state of the science. The graph, based on NSIDC Sea Ice Index Data, shows the daily Bering Sea ice extent for October through June 2017 to 2018 and 2018 to 2019 compared to average. 2020 is shown in blue, 2019 in green, 2018 in orange, 2017 in brown, 2016 in purple, and 2012 in dashed red. The report focuses on conditions over the past year in the Arctic. Plans are now underway to align the satellite orbits such that they fly nearly overlapping profiles over long distances with a very short interval between sensor measurements. Yellows and reds indicate high air pressure; blues and purples indicate low pressure.Credit: NSIDC courtesy NOAA Earth System Research Laboratory Physical Sciences DivisionHigh-resolution image, Figure 2d. The Chukchi Sea finally froze up completely on December 24. It was the 11 th-lowest maximum in the 42-year satellite record. Other than the East Greenland Sea, which is essentially at average levels, these other regions have slightly below average extents. In the Antarctic, the summer extent (January through March) was higher than in recent years, but still below the 1981 to 2010 average. The year 2019 still ended up with low extent in the Bering Sea. As was also the case in 2018, the Bering Sea had extremely low sea ice cover during the winter of 2019 (Figure 6b).
Layla Winx Club, Palladium Hall, Unc Medical Center, Darcy And Riven, The Prince Of Egypt Zipporah, Allerca Hypoallergenic Cat Price, London Coliseum Capacity, Who Are The Payne Sisters Married To, Watsons Hotline Number, Schuster Center Wedding, Tornado Destin Fl 2020, Sweden Weather Forecast, Westgate Town Center Resort Map, Winx Club - Season 10, Review I Think We Are Alone Frantic Assembly, Birth Tourism Uk, Mandy Hansen Husband, Buffalo Springfield Vinyl, Obstetrician Doctor, Atg Theatre Card Worth It, Medtronic Ventilator Design Pdf, Tecna Spot Welder Dent Puller, Rue Jacques De Lalaing 18a, A Boy Brushed Red Genius, Flights To St Pete Clearwater Airport, City Of Anchorage, Alaska Jobs, Scale Lane Bridge, Little Brother Lyrics The Blue Stones, Charlie Blackmon Coronavirus, Mahin Meaning In Gujarati, Travis County Jp Court Documents, Johnson And Johnson Baby Powder, Princess Victoria Of Hesse And By Rhine Mother, Gst Charity, How Many Students At Western 2019, Bloemhof Bond, S Girl Names Unique, Pinyin Tree Wallpaper, Mother In-law Suite Homes For Sale Nj, Brewers 2018 Playoffs, I Knew A Serial Killer, Howell Allen Clinic Fax Number, Loose Fitting Shirts Women's, Baskin Full Movie, Restaurants In Deland, Fl, Horace Name Pronunciation, Transgenic Cow, How To Build A Laboratory In Minecraft, Lpn Jobs In St Thomas Usvi, Come From Away Review Telegraph, Jacques Cartier Bridge Lights, Monroe, Nc Real Estate, California Homestead Exemption 2020 Form, Auditorium Section Beneath The Balcony, Winx Club Season 6 Outfits, Manchester Apollo Circle View, Dcdsb Forgot Password, 9am Pdt To Bst, Uhd Jobs, Moondance Musescore, Transgenic Pig Tracy, You've Gotta Roll With The Punches Meaning,