polar ice caps 2020

Contact NSIDC User Services or call +1 303.492.6199 Compared to the 1980s, very little sea ice survives multiple years in the Arctic now. A collaborative network of scientists and stakeholders to advance research on sea ice prediction and communicate sea ice knowledge and tools. Looking for facts and information? Home | Contact Us The team collected the samples from the Guliya ice cap in Tibet, ... From Tibet to the Arctic to Antarctica, glaciers and ice caps around the world are melting at ... ©2020 … NSIDC: 2020 Polar Ice doing just fine. About the dataCredit: National Snow and Ice Data CenterHigh-resolution image. Ice extent is far below average in all of sectors of the Eurasian side of the Arctic Ocean and in Baffin Bay. For the first three weeks of October, however, growth rates were well below average, around 51,600 square kilometers (19,900 square miles) per day. The 1981 to 2010 median is in dark gray. (2020, March 24). Adapted from NSIDC’s Charctic tool, the graph shows daily Arctic sea ice extent for every year since continuous satellite monitoring began in 1979. The years 2019 and 2020 saw significantly increased shipping activity compared with 2018. See About the Cryosphere. October 2020 is the largest departure from average conditions seen in any month thus far in the satellite record, falling 3.69 standard deviations below the 1981 to 2010 mean. Antarctic sea ice extent reached its seasonal sea ice extent maximum of 18.95 million square kilometers (7.32 million square miles) on September 28, 2020. Temperatures in Central Canada were 1 to 4 degrees Celsius (2 to 7 degrees Fahrenheit) below average (Figure 2b). Scientists say an enormous chunk of Greenland’s ice cap, estimated to be about 110 square kilometers (42.3 square miles), has broken off in the far northeastern Arctic. When scientists talk about the cryosphere, they mean the places on Earth where water is in its solid form, frozen into ice or snow. It’s just one of the ways that global warming will continue to negatively affect our environment. Learn about update delays and other problems which occasionally occur in near-real-time data. Explore current and archived sea ice data on the NSIDC Sea Ice Index Web site. Every summer the Arctic ice cap melts down to what scientists call its "minimum" before colder weather begins to cause ice cover to increase. By the end of summer 2019, the Arctic ice cap had shrunk to the second-lowest level since satellite monitoring started in 1979. Every summer the Arctic ice cap melts down to what scientists call its "minimum" before colder weather begins to cause ice cover to increase. This graph displays the area of the minimum sea ice coverage each year from 1979 through 2020. This plot shows average sea level pressure in the Arctic in millibars (hPa) for October 2020. This has the effect of delaying sea ice formation—before ice can form, the ocean must lose this heat to the atmosphere and then to space (Figure 4a). NSIDC. At the close of December, sea ice growth had gained enough ground for daily extent to rank only seventh lowest, the highest at this time since 2014. It was the 11 th-lowest maximum in the 42-year satellite record. Arctic sea ice extent—the area where ice concentration is at least 15 percent—reached its apparent annual maximum on March 5, 2020. On March 24, the National Snow and Ice Data Center (NSIDC) reported that the 2019–2020 growth season had an unexceptional finish: 5.81 million square miles (15.05 million square kilometers). Figure 6. N_daily_extent.png (420×500) Monthly October ice extent for 1979 to 2020 shows a decline of 10.1 percent per decade.Credit: National Snow and Ice Data Center High-resolution image. After seeming to reach its yearly peak, sea ice extent might resume growing at this time of year. This chart shows monthly sea ice extent anomaly (difference from the 1981 to 2010 average) for 1979 to October 2020. Aerosol-driven increase in Arctic sea ice over the middle of the 20th Century, Geophysical Research Letters (2017). 2020 is shown in blue, 2019 in green, 2018 in orange, 2017 in brown, 2016 in purple, and 2012 in dashed brown. This excess heat transferred to the atmosphere can be seen in a vertical profile of temperature by latitude along longitude 140 to 170 degrees E, which cuts though the open water area along the Eurasian coast (Figure 4a). This figure shows a profile of temperature (in color) for the lower half of the atmosphere (500 to 1,000 millibars, or about 18,000 feet to the surface) versus latitude, averaged along a swath of longitudes from 140 to 170 degrees E. With longer periods of open water during spring and summer, more solar energy is absorbed within the upper part of the ocean. This satellite image, captured in 2017, shows the rapid depletion of two ice caps on Ellesmere Island in the Canadian Arctic. No record-breaker maximum. As of July 2020, both are gone. "It is just above the average extent of the 2001-2010 period." Warns Polar Ice Caps Melting Six … The maximum extent was the eleventh highest in the satellite record. The increase in August activity between 2018, 2019, and 2020 is shown in the bar chart at upper left. Figure 3. Arctic Sea Ice News & Analysis (ASINA) is produced by the National Snow and Ice Data Center (NSIDC), which is part of the Cooperative Institute for Research in Environmental Sciences (CIRES) at the University of Colorado Boulder. Satellite-based passive microwave images of the sea ice have provided a reliable tool for continuously monitoring changes in the Arctic ice since 1979. The sea ice cover is one of the key components of the polar climate system. Accessed March 24, 2020. Today, polar ice caps are melting six times faster than they did in the 1990s. The last two weeks have seen periods of declining extent along with periods of little change or even gains in extent. There has been a large expansion of thick ice into the Chukchi, Beaufort and East Siberian Seas since 2008. The German icebreaker Polarstern on Arctic sea ice in August 2020, as melt ponds are forming. But there is a catch to the increasing sea ice in the Arctic: the depth, or volume, of the ice this year is still below average. Exchange for Local Observations and Knowledge of the Arctic (ELOKA), NASA Distributed Active Archive Center at NSIDC (NSIDC DAAC), All About Arctic Climatology & Meteorology, Sea Ice Index (Passive microwave satellite data), MASIE (Daily sea ice extent, multi-source). Sea ice extent at the winter maximum doesn’t predict the summer minimum extent with any reliability. It has been a focus of attention in recent years, largely because of a strong decrease in the Arctic sea ice cover and modeling results that indicate that global warming could be amplified in the Arctic on account of ice-albedo feedback. This was 890,000 square kilometers (344,000 square miles) below the 1981 to 2010 December average and 490,0… This delays sea ice formation because before ice can form, the ocean must lose this heat to the atmosphere and then to space. From October 13 into early November, the daily sea ice extent was the lowest for that day in the satellite record. The polar sea ice hit its lowest extent for July in 40 years. Extent averaged for the month was 11.95 million square kilometers (4.61 million square miles), tied with 2006 as the fifth lowest December extent in the satellite record. Arctic sea ice extent in January 2020 is sitting ABOVE levels observed in the years 2019, 2018, 2017, 2016, 2015, 2012 (record low extent), 2011, AND 2010.. Can you imagine the likes of The Guardian, for example, ever running with this? The World’s Glaciers Continue To Melt As Massive Chunk Of Arctic Ice Cap Breaks Off. Sea ice extent is above average along a wide area of the Ross Sea and Wilkes Land coast, and in the Eastern Weddell Sea. This was 3.07 million square kilometers (1.19 million square miles) below the 1981 to 2010 October average and 450,000 square kilometers (173,700 square miles) below the record low mark for October set in 2019. Sea Ice Index data.Credit: National Snow and Ice Data CenterHigh-resolution image, Figure 2b. Darkest blue indicates open water or ice concentration less than 15 percent. Arctic sea ice extent for October 2020 was 5.28 million square kilometers (2.04 million square miles). Notably, the disappearing polar ice caps will accelerate global warming, cause widespread coastal … Figure 5. The graph above shows Arctic sea ice extent as of November 3, 2020, along with daily ice extent data for four previous years and the 2012 record low year. Also, in the last 20 years, 2020 is at the seventh-largest ice extent for early February. On October 24, Arctic sea ice extent had its largest departure from the 1981 to 2010 average of daily sea ice extent in the 42-year continuous satellite record, at 3.4 million square kilometers (1.31 million square miles). 2008 2019. The disappearance of the St. Patrick's Bay ice caps is "an exclamation point of what's happening in the Arctic," Serreze added. The announcement of the 2020 maximum Arctic extent lagged the actual event by nearly 20 days for a good reason. Your burning questions about snow and ice. Notably, in the last few days of the month, sea ice concentration dropped in the area of the Maud Rise and in an area near the front of the Amery Ice Shelf. "The decline in Arctic sea ice in summer is one of the clearest, most unequivocal signs of climate change," said Julien Nicolas, an Arctic expert at the … Below-average pressure also occurred over the Hudson Bay (Figure 2c). Read about the data. Accessed March 24, 2020. Explore NASA satellite data using interactive maps that show how the Arctic is changing over time. This excess heat transferred to the atmosphere can be seen as the warm (red) layer over the open water region. Credit: NCEP/NCAR Reanalysis High-resolution image, Figure 4b. The ice loss from Greenland and Antarctica is … Paired with the 2019 Arctic heatwave, this melting rate may produce disastrous outcomes. Throughout the month, sea ice grew by an average of 71,200 square kilometers (27,500 square miles) per day, which is close to the average rate for 1981 to 2010. About the dataCredit: University of BremenHigh-resolution image. However, the anomalous warmth is largely limited to near the surface of the ocean. Although Arctic sea ice has not declined in winter as rapidly as it has in summer, winter sea ice is now well below the 1981–2010 average. Arctic sea ice extent—the area where ice concentration is at least 15 percent—reached its apparent annual maximum on March 5, 2020. Shades of lighter blue to white indicate 15–100 percent ice cover. Median falls “in the middle” because half of the years in the 1981–2010 reference period had larger extents, and half had smaller extents. ... U.N. Sea ice extent for October 2020 was 5.28 million square kilometers (2.04 million square miles), placing it lowest in the satellite record for the month. Read more ... Sea ice data updated daily, with one-day lag. This color-coded map shows Arctic sea ice concentration on March 5, 2020. Each year, the extent line follows a similar path: starting high in January, rising through the time of the maximum (between early March and mid-April), falling until mid-September, and rising again through the remainder of the calendar year. Following the pattern of recent years, growth became very rapid late in the month, averaging around 134,000 square kilometers (51,700 square miles) per day. NOAA Climate.gov based on data from NSIDC, Unexceptional Arctic sea ice maximum in 2020, wavy around the time of the winter maximum, Arctic sea ice at maximum extent for 2020, 2019 Arctic Report Card: Old, thick ice barely survives in today’s Arctic, 2019 Arctic sea ice extent ties for second-lowest summer minimum on record, Anticipating more activity in the Arctic, NOAA invests in research to advance sea ice forecasting, In the coastal communities near the Bering Strait, a winter unlike the rest, 2020 Arctic sea ice minimum second lowest on record, Climate impacts on walruses may be masked by influence of hunting pressure, Surface melting affected more than half of Greenland Ice Sheet in 2015, 2019 Arctic Report Card: Melt season on Greenland Ice Sheet rivals record for area and duration. The monthly average ice extent for October is the lowest in the satellite record. The average sea level pressure pattern for October was characterized by below-average pressure over the Northern Atlantic Ocean and Laptev and Bering Seas, driving winds northward toward the Lena River region, Barents Sea, and Novaya Zemlya. We provide an update during the first week of each month, or more frequently as conditions warrant. Sea ice scientists try to exercise caution in calling the maximum because the extent line gets particularly wavy around the time of the winter maximum. Elsewhere in the Arctic and the northernmost Atlantic regions, temperatures were near average to slightly below average. Figure 2a. Transits through the NSR are shown in red, departing or arriving at the Arctic coastal ports in blue and green, and port-to-port within the Arctic is shown in yellow. Marie-Ève Gagné et al. (2020, March 24). Press direct line: +1 303.492.1497. Credit: Center for High North Logistics Information Office at Nord University High-resolution image. Sea ice growth in the last 10 days of the month was mostly along the Siberian coast, extending northward, and along the Eurasian side of the sea ice pack, extending southward. The five lowest September extent minima (2007, 2012, 2016, 2019, and 2020) all show large departures in October extent compared to the reference period. This summer, the ice caps finally met their demise after decades of rising temperatures and unusually warm summers chipped away at the centuries of snow … However, in 2020, the Northern Sea Route was essentially ice free from mid-July through about October 25. The sea ice data for the Sea Ice Index are from the NASA Snow and Ice Distributed Active Archive Center (DAAC), which is funded by NASA award 80GSFC18C0102, and from the CIRES cooperative agreement with NOAA, which is funded by NOAA NA15OAR4320137. A delay in Arctic sea ice growth in autumn tends to lead to large departures from average in sea ice extent after the summer minimum and particularly in the month of October. The five lowest September extent minima (2007, 2012, 2016, 2019, and 2020) all show large departures in October extent compared to the reference period (Figure 4b). The magenta line shows the 1981 to 2010 average extent for that month. Before the start of the 2016 season, the West Madison Polar Caps Hockey club was faced with a problem: too many skaters and not enough ice. Click for high-resolution image. Scientists blog from Antarctica and provide a glimpse of what it's like to do research in the field. —Credit: National Snow and Ice Data Center. On Thin Ice:Expedition to a Crumbling Ice Shelf. Although they were abnormally large, the state of the polar ice caps in 1979 became the standard baseline in NASA’s study. A vast area of the Arctic Ocean remains ice free as November begins, far later in the season than is typical. The delay in ice regrowth leads to large departures from average in sea ice extent in the time after the summer minimum and particularly in the month of October. Based on passive microwave data, the Northern Sea Route remained open through nearly all of October. Arctic sea ice at maximum extent for 2020. On March 24, the National Snow and Ice Data Center (NSIDC) reported that the 2019–2020 growth season had an unexceptional finish: 5.81 million square miles (15.05 million square kilometers). The Arctic has been warming at twice the global rate for the last 30 years, due to a process known as Arctic amplification. A new NASA study says that an increase in Antarctic snow accumulation that began 10,000 years ago is currently adding enough ice to the continent to outweigh the increased losses from its thinning glaciers. Sea Ice Index data. What's hot in the news around climate and sea ice and what are scientists talking about now? Satellite-based passive microwave images of the sea ice have provided a reliable tool for continuously monitoring changes in the Arctic ice since 1979. It is slightly below average in the Bellingshausen and Amundsen Seas. In the past two decades, high autumn temperatures over the open water here have strongly contributed to Arctic Amplification—the larger rise in air temperatures over the Arctic compared to the rest of the globe. DOI: 10.1002/2016GL071941 Shi, X., … However, in NASA satellite images from July 2020, they are nowhere to be seen. NASA Satellite Details How Fast Polar Ice Is Melting And Raising Sea Levels A new NASA satellite is providing a detailed look at how much polar ice is melting, ... April 30, 2020 3:35 PM ET. Arctic Sea Ice News and Analysis. Although it’s nowhere near the bottom of the pack, the 2020 extent line does land in the lower half of the satellite record. It was the 11th-lowest maximum in the 42-year satellite record. The NASA award NNX16AJ92G funds the ASINA project. 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). 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. Figure 1. General public and data users: September Arctic sea ice is now declining at a rate of 13.1 percent per decade, relative to the 1981 to 2010 average. "Thanks to the strong polar vortex, the Arctic sea ice reaches the largest ice extent in the past 11 years." Scott Snowden Contributor. Therefore, it is our responsibility to identify solutions to the problem and prevent the planet’s degradation. This plot shows the departure from average air temperature in the Arctic at the 925 hPa level, in degrees Celsius, for October 2020. Over the 42-year satellite record, the Arctic has lost about 3.45 million square kilometers (1.33 million square miles) of ice in October, based on the difference in linear trend values in 2019 and 1979. Icebreaker and ice-hardened tankers made several voyages within the route as early as June. Arctic sea ice volume continues its eleven year long expansion. Ice volume in the Arctic remains low in 2020. Sea Ice Index data. The polar ice caps are melting six times faster than in the 1990s, according to the most complete analysis to date. Researchers Walt Meier, Ted Scambos, Mark Serreze, and Julienne Stroeve regularly contribute to ASINA, sometimes featuring guest authors, and with support from Kevin Beam, Andy Barrett, Lisa Booker, Michael Brandt, Florence Fetterer, Matt Fisher, Agnieszka Gautier, Marin Klinger, Jonathan Kovarik, Jed Lenetsky, Luis Espinosa Lopez, Audrey Payne, Bruce Raup, Matt Savoie, Trey Stafford, Bruce Wallin, and Ann Windnagel. Spreadsheet. Yellows and reds indicate higher than average temperatures; blues and purples indicate lower than average temperatures.Credit: NSIDC courtesy NOAA Earth System Research Laboratory Physical Sciences Division High-resolution image, Figure 2c. Including 2020, the linear rate of decline for October sea ice extent is 10.1 percent per decade. COPENHAGEN, Denmark — An enormous chunk of Greenland’s ice cap has broken off in the far northeastern Arctic, a development that scientists say is evidence of rapid climate change. Arctic sea ice reaches its minimum each September. Commercial shipping along the Northern Sea Route of the Russian north coast is increasing. Antarctic Ice. Yellows and reds indicate high air pressure; blues and purples indicate low pressure.Credit: NSIDC courtesy NOAA Earth System Research Laboratory Physical Sciences Division High-resolution image. Track color legend is shown in the lower right. Since then, Antarctic sea ice has declined by 1.30 million square kilometers (502,000 million square miles), but at a rate slightly slower than the average, resulting in a slight increase in the difference between the daily sea ice extent and the 1981 to 2010 average. Arctic sea ice extent was 4.21 million square kilometers (1.62 million square miles) on September 16, which is likely near the seasonal minimum extent that is expected within the next week. In this graph, extent-line shades range from light green (older decades) to deep blue (recent decades). This is comparable to twice the size of the state of Alaska. This corresponds to a downward trend of -84,400 square kilometers (32,600 square miles) per year, or losing an area about the size of South Carolina each year. Far away in the high arctic polar desert of Ellesmere Island in Nunavut, Canada, next to Greenland, were once the twin St. Patrick Bay ice caps. © 2019, National Snow and Ice Data Center :: Advancing knowledge of Earth's frozen regions. August 2020: Following intense summer heat, Arctic sea ice melts to its second-lowest extent on record, nearly reaching 2012 levels. Deep blue colors depict low autumn sea ice extent over the past 15 years.Credit: National Snow and Ice Data Center High-resolution image. This plot shows Arctic sea ice extent anomalies for those five years from June to December compared with the 1981 to 1990 average, 1991 to 2000 average, and the 2001 to 2010 average.Credit: National Snow and Ice Data Center High-resolution image, Figure 4c. From August 30 through September 5, there was a total loss of about 320,000 square kilometers (123,600 square miles). NSIDC. With longer periods of open water during spring and summer, more solar energy is absorbed within the upper few tens of meters of the ocean. The gray areas around the median line show the interquartile and interdecile ranges of the data. On October 24, a record difference was set in daily ice extent relative to the 1981 to 2010 average. Glaciers and polar ice caps melting – and the consequent rising of the oceans – is an urgent problem. ... “And in 2019 and 2020, it saw record summer temperatures,” she said. Satellite images taken in July 2020 … The extent line for 2020 is dark pink, and the time series ends on March 19, 2020. November 27, 2020 Thursday, November 26, 2020 Wednesday, November 25, 2020 Tuesday, November 24, 2020. Large heat transfers from the open water to the atmosphere have manifested as above-average air temperatures near the surface of the ocean. This chart shows Northern Sea Route (NSR) shipping traffic for August 2020 and other shipping information for that region. 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). Ivory gulls congregate on a small ice floe at the sea ice edge in the Arctic on Sep. 14, 2020. The graph also includes lines for selected earlier years, for comparison. Read scientific analysis on Arctic sea ice conditions. The shipping traffic map shows the importance of passages just north of the Taymyr Peninsula and near the New Siberian Islands on either side of the Laptev Sea; these are generally the last areas to clear of ice, and only in the warmest years. According to the latest October report from the National Snow and Ice Data Center (NSIDC), the ice locked at Earth’s poles is, overall, GROWING. This figure shows the Japanese Aerospace Exploration Agency (JAXA) Advanced Microwave Scanning Radiometer 2 (AMSR2) sea ice concentration for Antarctic sea ice on October 31, 2020. Read their blog ... Icelights: Answers to your burning questions about ice and climate. Orange line in extent and concentration images (left and middle) and gray line in time series (right) indicate 1981 to 2010 average extent for the day shown. Figure 4a. Record heat and wildfires have scorched Siberian Russia. Arctic sea ice extent is close to the 1981-2010 median. Scientists say an enormous chunk of Greenland’s ice cap, estimated to be about 110 square kilometers (42.3 square miles), has broken off in the far northeastern Arctic ... 2020… This includes complete transits from Europe to East Asia, local shipping within the Arctic Ocean, and deliveries of liquefied natural gas from gas fields in the Yamal Peninsula to ports in both Europe and East Asia. NSIDC reported that the 2020 maximum fell 228,000 square miles (590,000 square kilometers) below the 1981–2010 average maximum of 6.04 million square miles (15.64 million square kilometers). Polar Caps - Changing the Game Video. But this year, temperatures in the polar region have been intense. A synthesis of scientific sea ice extent projections during Arctic summer, updated monthly during melt season. After exploring many different options and in partnership with Madison Ice, we elected to build a new rink in the parking lot. 2020 had slightly more shipping than 2019 when comparing August shipping from both years. Air temperatures at the 925 hPa level (about 2,500 feet above the surface) were 4 to 5 degrees Celsius (7 to 9 degrees Fahrenheit) above average for the month across much of the Central and Western Arctic Ocean and the Siberian Arctic coast, as well as over Northern Greenland. Antarctic sea ice extent reached its seasonal maximum of 18.95 million square kilometers (7.32 million square miles) on September 28, as was tentatively reported in the October post. This graph shows the average monthly Arctic sea ice extent each September since 1979, derived from … October 24, 2020 October 24, 2020 Cap Allon.

4 Design Principles For Data Processing, When Do Beech Trees Produce Nuts, Construction Hub Wordpress Theme, What Are Pizza Fries, Sri Lankan Crab Curry Restaurant, Replacing Double Oven With Single And Microwave,

Leave a Comment

Your email address will not be published. Required fields are marked *