sea ice extent

Southern Hemisphere sea ice does not get that close to the South Pole. During 19792020 Arctic September sea ice extents varied 53 March extents only 12.

Arctic Sea Ice Extent And Concentration On February 1 2018 Arctic Arctic Sea Sea Ice

Antarctic sea ice usually reaches its annual maximum extent in mid- to late September and reaches its annual minimum in late February or early March.

. Sea Ice Area SIA is the total ocean area covered by any amount of ice 0 SIC threshold. The monthly Sea Ice Index provides a quick look at Arctic-wide changes in sea ice. This figure shows Arctic sea ice extent projections for the 2022 minimum using data through August 15 2022. Monthly images show sea ice extent with an outline of the 30-year 1981-2010 median extent for that month magenta line.

Basic Intermediate Advanced. NSIDC Greenland Ice Sheet surface melt extent graph. Arctic sea ice extents set 93 monthly 11 yearly record lows post-1986 0 record highs. NSIDCNIC MASIE homepage and daily data.

The extent in September 2019 was about 30 lower than the average September extent over 1980-2010. A 2 day lag. This years wintertime extent is the 10th-lowest in the satellite record maintained by the National Snow and Ice Data Center one of NASAs Distributed Active Archive Centers. NSIDC sea ice area and extent monthly data.

Summer Arctic sea ice extent is shrinking by 13 per decade as a result of global warming. Although both approaches rely on the concept of dividing a region into grid cells they result in a different value to express the sea-ice coverage. This sea ice extent dataset is on a 25km cell size grid covering both Arctic and Antarctic polar regions. Roughly 15 million square kilometers of ice melt and freeze during the annual cycle.

The Earth Observing System Data and Information System is a key core capability in NASAs Earth Science Data Systems Program. Sea ice extent provided by the National Snow and Ice Data Center NSIDC is available from 19792022 for the Globe Northern Hemisphere and Southern Hemisphere. Current Arctic sea ice extent. 25 after growing through the fall and winter.

At hemispherical scales SIE is often reported with units of 106 sq km millions square kilometers. Also refers to the extent of the ice pack into the open ocean which varies seasonally. Arctic sea ice extent on 14th August 2022 was 608 million sq km Figure 1. The solid blue line depicts sea ice extent from May 1 to August 15 2022.

In the Arctic the maximum coverage occurs in March and the minimum coverage. Antarctic sea ice extent each September from 1979 through 2021. On this day NSIDC daily sea ice extent is about 140k less than NSIDC 5-day extent This is when in the last 5 days daily sea ice extent loss has been at around 75k. Based on satellite data extent is the total area where the ice concentration is 15 percent or higher.

Sea ice extent SIE in the Weddell Sea attained exceptionally low levels in April 197 million km2 and May 306 million km2 2019. It provides end-to-end capabilities for managing NASAs Earth science data from various sources. It was 136 million sq km above the lowest value for this date which occurred in 2012. Since 2015 global sea ice extents have set new monthly record lows for all 12 months.

Arctic sea ice reaches its minimum extent the area in which satellite sensors show individual pixels to be at least 15 covered in ice each September. Snow cover extent provided by the Rutgers University Global Snow Laboratory GSL is available from 19672022 for the North America Greenland Northern Hemisphere Eurasia and North America. The Earth Observing System Data and Information System is a key. But at lower latitudes the extent of snow and sea.

- Extent loss on this day 46k 55 k less than the average loss on this day of the last 10 years of 101k - Extent loss from maximum on this date is 5984 k which is 197 k. The area of ocean covered by sea ice in the polar regions. As the seawater. 15 of the surface is covered by ice.

The projections are based on the average loss rates for the 1981 to 2010 average in red the 2007 to 2021 average in green 2012 rates in dotted purple. Sea ice affects the movement of ocean waters. Arctic sea ice appeared to have hit its annual maximum extent on Feb. A still image visualizing Arctic sea ice on Sept.

Sea-ice area and sea-ice extent aim to describe a similar quantity ie. Arctic sea ice extent is declining at a rapid rate. This dataset shows the growth and decay of sea ice concentration throughout the year. If you browse through these maps you will notice that snow and ice cover Earths polar regions with bright white caps all year round.

Highs dominated Antarctic sea ice extent records until 2016 followed by lows. When sea ice forms ocean salts are left behind. September Arctic sea ice is now shrinking at a rate of 13 per decade compared to its average extent. Sea ice plays an important role in reflecting sunlight back into space regulating ocean and air temperature circulating ocean water and maintaining animal habitats.

The extent of the sea ice is defined by areas that have an ice concentration of at least 15 ie. Sea ice extent is the integral sum of the areas of all grid cells with at least 15 ice concentration while sea ice area is the integral sum of the product of ice concentration and area of all grid cells with at least 15 ice concentration. Sea ice around Antarctica peaks in September and reaches a minimum in February. 8410240 KM2 as at 11-Jul-2022.

This dataset shows sea ice concentration every ten days from 1978 - 2019. The EUMETSAT OSISAF sea-ice extent and area. JAXA ARCTIC SEA ICE EXTENT. NSIDC Charctic interactive ArcticAntarctic sea ice graph.

Sea ice waxes and wanes with the seasons every year. 10-year averages between 1979 and 2018 and. JAXA ADS-NIPR sea ice extent daily data. This was 115 million sq km below the 1981-2010 average and was the 14th lowest extent on record for this date although the highest since 2014.

The colors on this collection of daily global maps show where the land and ocean was covered by snow gray and white and ice blue. Sea ice in both hemispheres can be easily monitored now with data from a series of satellites that have been operating since the late 1970s. The gauge value of 14 indicates that mean sea ice extent between 2017 and 2021 for sea ice in the Alaska-Arctic region was only higher than 14 of the sea ice extent measurements between 1979 and 2021 Indicator and source information. Sea-ice area is a more quantitative way of describing sea-ice.

16 2021 when the ice appeared to reach its yearly minimum extent. Every year NOAA publishes the Arctic Report Card. It fringes the continent and reaches to 55S latitude at its greatest extent. My memory says Daily Sea ice area loss in the last 5 days has been about double that on this day 238k 5-day average sea ice area loss was 129k in the last 5 days.

It is a source for consistently processed ice extent and concentration images and data values since 1979. The grey band around the climatological mean value corresponds to plusminus one standard deviation. The dashed vertical line indicates the date of the latest plotted and mapped data. NSIDC Browse Image Subset Tool BIST NSIDC sea ice extent daily data.

Sea ice extent is the area of ice that covers the Arctic Ocean at a given time. The extent of the ice is based on satellite data and are from the Ocean and Sea Ice Satellite Application. Sea Ice Concentration is the fractional coverage of a grid cell that is covered with sea ice.

Figure 1 Arctic Sea Ice Extent For December 2016 Was 12 10 Million Square Kilometers 4 67 Million Square Miles The Magenta Li Arctic Sea Arctic Ice Sea Ice

Arctic Sea Ice Reaches Annual Low Image Of The Day Arctic Sea Image Of The Day Nasa Earth

Arctic Sea Ice Extent In August September October From 1979 To 2018 Oc

Minimum And Maximum Arctic Sea Ice Extent 1979 To 2018 Oc Arctic Sea Sea Ice Arctic

Tracking The Amount Of Sea Ice From The Greenland Ice Sheet Greenland Ice Sheet Sea Ice Greenland

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