It includes browse images and tools to compare and animate a time series of images. The decline of arctic sea ice over the past 40 years has been one of the more obvious signs that earths climate is warming, especially in the summer when the ice extent reaches its annual minimum. This movie shows how the sea ice around antarctica and the south pole changes from season to season throughout the year. Daily sea ice extent and icesurface temperature ist maps have been produced by modis since 2000 riggs et al.
Measurement of sea ice is important for safety of navigation and for monitoring the environment, particularly the climate. The sea ice cover of the southern ocean reached its yearly maximum extent on oct. The data are available at the ocean and sea ice satellite application facility. Data is added by the national snow and ice data center as it becomes available. When the arctic sea ice reached its minimum extent for 2011 on sept. Each image is a snapshot of sea ice cover each day with the date. A strong cold front moving through the eastern states will bring heavy rainfall and the threat for flooding from the appalachians to parts of new england through tonight. Extent loss to date is 670k km2 12% below the 2010s average, with 56% of the average melting season done.
The maps below show the areas for september shaded relative to the median extent purple line. The graph shows the annual variation in the extent of the sea ice in the northern hemisphere. Animation of the vashon glaciation 20,000 years ago to. Charctic interactive sea ice graph arctic sea ice news. Published on april 26, 2020 april 26, 2020 by sunshinehours1 1. There is usually a lot of sea ice in early spring, right after winter ends, around march. Antarctic sea ice extent animation 20032010 stefano riccio. To develop my animation of the daily arctic sea ice extent, i decided to produce a plot for each year that showed the current year in red and the previous years in grey. Daily extent images show ice extent at concentrations greater than 15% for a given day with an outline of the typical extent for that day based on a 30year 19812010 median orange line.
The sea ice cover reaches its minimum extent at the end of each summer and the remaining ice is called the perennial ice cover. The sea ice index is a collection of data and tools to examine sea ice trends and data. Overall, since satellitebased measurements began in the late 1970s, arctic sea ice extent has decreased in all months and virtually all regions, with the exception of the bering sea during winter. Although students begin the lesson by examining the impacts of receding sea ice extent, they will end up discussing a wide variety of subjects and questions that. This is the movie bunny that lead to the franchise ice age bunny went on to win the oscars for animated shorts and got. The arctic ice sea monitor link updates their daily csv file with the latest satellite based arctic sea ice measurements. In 2012, summer minimum sea ice extent was recorded at 3. The following tool can animate and graph ice thickness data after. There is a bug in the code for this animation that is causing it to fail to recognize when the animation should stop. Google earth blog is no longer writing regular posts. To see a corresponding daily sea ice concentration image, click on a line in the chart. Sea ice index animation tool animate monthly extent, concentrations, anomalies, and trends.
Arctic sea ice likely reached its 2019 minimum extent of 1. The change in erosion rates is likely the result of several changing arctic conditions, including declining seaice extent, increasing summertime seasurface temperature, rising sea level, and possible increases in storm power and corresponding wave action. Here you can watch how the amount of sea ice in the arctic has varied since the start of the satellite era in late1978. Sea ice extent provided by the national snow and ice data center nsidc is available from 19792019 for the northern hemisphere, southern hemisphere, and globe. In order to get a true picture of the state of the sea ice, it is necessary to determine its extent, thickness and volume. The map shows the sea ice extent in the northern hemisphere. Which softwares are used to make an ice age animated.
Sea ice animation 2009 dataset science on a sphere. This animation shows measurements of sea ice extent for the time period 19792011 from the national snow and ice data center nsidc for 1 the antarctic. Antarctic sea ice extent animation 20032010 youtube. Sea ice extent provided by the national snow and ice data center nsidc is available from 19792020 for the northern hemisphere, southern hemisphere, and globe. The maps above depict median sea ice extent among 5 gcms identified by massonnet et al. Sea ice shows up as various shades of grey and open ocean as blue. Animation of annual variation in sea ice extent in the. Ucar center for science education randy russell using maps and data from the nsidc.
The once inaccessible arctic ocean has gained economic attention as a result of the recession of the arctic sea ice. In addition, users can plot monthly ice extent anomalies, map sea ice concentration anomalies, and display images of trends in sea ice concentration, all for a variety of date, climatology, and trend ranges. Arctic sea ice reaches 2019 minimum extent youtube. Animation shows disappearing arctic sea ice youtube. The daily sea ice index provides a quick look at arcticwide changes in sea ice.
Nsidc greenland ice sheet surface melt extent graph. Sea ice and snow cover extent snow and ice national. Nasa arctic sea ice extent is third lowest on record. The animation shows the seasonal variability of the ice, growing in the arctic winter and melting in the summer. Think of ways in which changes in sea ice extent relate to other spheres of the earth system atmosphere, biosphere, geosphere, hydrosphere.
The sea ice index more info is a collection of data and tools to examine sea. On sept 12, 2009, the extent of sea ice in the arctic reached the third lowest level ever recorded since satellite records began in 1979. Sea ice data and analysis tools arctic sea ice news and. Ive produced an animated gif of the part of the modis arctic mosaic where you can see the mouth of nares strait, the lincoln sea and the upper part of fram strait. Easily download and plot daily arctic sea ice concentration grids. This animation shows the annual variation of sea ice extent in the southern hemisphere. This animation shows in detail the formation of sea ice in the arctic. The arctic just set an ominous new record the washington. Since november, daily antarctic sea ice extent has continuously been at its lowest levels in the satellite record.
Animated map showing annual variation of sea ice extent in the arctic ocean on a monthly basis from january 2016 through december 2018. Browser plugins in order to fully access some of the content on this page, you may need to download the following. The national snow and ice data center estimates that the overall extent dropped to 5. This caused a big, early lead on sea ice extent graphs such as jaxas. Zoom in to any area on the chart by clicking and dragging your mouse. During the last ice age, sea levels stood around 370 feet lower than today. Weekly animation of arctic sea ice age with graph of. Increasing antarctic sea ice extent linked to ozone hole date. Sea ice extent is derived from sea ice concentration. Summer arctic sea ice extent 1980 2012 by tyler reid this has triggered the expansion of many industries in the arctic, some prospective and others very real and rapidly expanding. It covers most area in march and least at the end of summer, in september.
The sea ice area for the arctic shows nearrecord minimums since 2002. In this animation, the daily arctic sea ice and seasonal land cover change progress through time, from the yearly maximum ice extent on march. Thus, when you get to the end of the animation, the image will disappear and the words sea ice image will be in its place. Sea ice but the 1990 ipcc report shows that they are not being honest. Extention of antartic sea ice since january 2003 until march 2010. Experts say arctic sea ice is disappearing earlier in summer and returning later in the fall. In addition, this also shows the changes from year to year, depicting the age of the sea ice in different colors. Selected data can be animated to show changes in sea ice extent over time.
Sea ice thickness canadian cryospheric information network. And then in april, just before the melting season started, things got exciting very early in the beaufort sea animation shows march 30th to may 4th. This animation shows the arctic sea ice melt from august 1 through september, 2012, the date on which the ice reached its smallest extent ever recorded in more than three decades of satellite measurements, according to scientists from nasa. Sea ice index animation tool national snow and ice data. Recently, kevin pluck a software engineer created a global sea ice. In the melting season, the thickness of sea ice is highly variable and the emission properties in the microwave change due to the wetness of the surface and occurrence of melt ponds in the arctic. It provides consistently processed daily ice extent and concentration images and data since 1979. Arctic sea ice extent animation 20162018 ucar center. Compare nsidc extent graphs with the browser image. Operation icebridge, nasas aerial survey of polar ice, flies over a lead, or opening in the sea ice cover, near the alaskan coast on march.
Arctic sea ice news and analysis sea ice data updated. This visualization tool shows sea ice data from 1978 to the present. Increasing antarctic sea ice extent linked to ozone hole. Throughout the winter, the cold temperatures freeze more and more of. Nsidc has a website that summarizes the characteristics of over two dozen sea ice data sets.
Ice extent was below the 1979 to 2000 average everywhere except in the east greenland sea, where conditions were near average. Endofsummer arctic sea ice extent is eighth lowest on. In my previous post i showed an animation of arctic sea ice extent from the. Increased growth in antarctic sea ice during the past 30 years is a result. The sea ice analysis tool allows users to analyze monthlyaveraged or daily sea ice extent and concentration via interactive maps. Sea ice extent has been monitored by passive microwave instruments on satellite platforms since 1979, providing a 39year long perspective on changing coverage over the last several decades.
Animations can show seasonal and interannual variability as well trends in. Animation of sea ice extents converted to a quicktime movie quicktime video 2. Eleven years of arctic sea ice thickening real climate. Sea ice extent interacts with large climate patterns such as the north atlantic oscillation and atlantic multidecadal oscillation, to name just two, and influences climate in the rest of the globe. During the winter the cold temperatures freeze more and more of the water in the arctic ocean. Satellites have monitored sea ice coverage continuously since the late 1970s, and the decline of arctic sea ice extent is one of the main indicator of climate change over the last decades. Raw data and images of total extent and area, anomalies, and trends are provided. Click to view visualization 8 mb sea ice cover reaches its minimum extent at the end of each summer.
John, there is currently more ice in the arctic than the average of the past 9000 years. The graph above shows arctic sea ice extent as of april 1, 2020, along with daily ice extent data for four previous years and the record low year. Therefore, thickness data are calculated only during the freezing. A tutorial to calculate antarctic sea ice extent from a timeseries of sea ice concentration data lo iseantarctic seaiceextent. The mild winter led to one of the lowest maximums on record, lowest even on some graphs. Create groupings based on how similar they are to one another or their relation to the main topic. Nsidc browse image subset tool bist nsidc sea ice extent daily data. Normally the nares strait, the water between greenland and ellesmere island see map is closed by socalled ice arches or ice bridges that keep the ice in the lincoln sea from flowing out into baffin bay and further. The data used has been collected under the ice thickness program. Brainstorm main ideas and terms related to changes in sea ice extent. Arctic sea ice extent hits second lowest on record live. Ocean and ice services danmarks meteorologiske institut.
Arctic sea ice continues record lows pace in midwinter. Sea ice grows throughout the winter and melts throughout the summer, reaching its maximum extent in late february or march, and its minimum extent in september. Here, we model the contribution of polar ice sheets to local sea level rise. Satellites have monitored sea ice coverage continuously since the late 1970s, and the decline of arctic sea ice extent is one of the main indicator of climate. A few days ago, the national snow and ice data center. Global sea ice extent sea ice extent global antarctic and arctic day 116 2020. The sea ice extent data is composed by a climate data record cdr, 19792015, an interim cdr icdr, since 2015 with 16 days delay and a daily product to cover the period between the icdr and today. Sea ice index animation tool this visualization tool shows sea ice data from 1978 to the present. R script to build animation of arctic sea ice extent. There is usually a lot of sea ice in early spring, right after winter ends, around september. Arctic sea ice appeared to have reached its yearly lowest extent on sept. The simulation captures the evolution of sea level rise over the entire planet, taking into account eustatic sea level, sea level rise from perturbations to the gravity field, and sea level rise from local elastic rebound of the earths crust.
Animate monthly extent, concentrations, anomalies, and trends. R script to build animation of arctic sea ice extent update 1220. Sea ice is present year round in the arctic ocean and its peripheral seas. The recent years represent a unique event because they show a yeartoyear persistence of minimum ice extents graph below.
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