Fayl:NSIDC arctic sea ice extent since 1979.svg

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English: Plot of arctic sea ice extent development between 1979 and 2023 in monthly mean values. For the determination of the "area" value, every pixel with a sea ice concentration > .15 is taken. The pixel area is multiplied with the concentration value derived from the passive infrared signal. For the "extent" value, the concentration value is taken as 1, so we basically get full area with >.15 concentration.
Deutsch: Verlauf der Umrissfläche des arktischen Meereises in Monatsmittelwerten von 1979 bis 2023. Für die "area"-Daten werden alle Pixel mit einer Eiskonzentration > 0.15 genommen und deren Fläche mit der Eiskonzentration multipliziert. Für die "extent"-Daten wird diese Eiskonzentration =1 gesetzt - so erhält man die Gesamtfläche mit überhaupt irgendwelchem Eis.
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Manba Oʻzimning ishim
Muallif Dominiklenne

Data source: Fetterer, F., K. Knowles, W. Meier, and M. Savoie. 2002, updated until 2010. Sea Ice Index. Boulder, Colorado USA: National Snow and Ice Data Center. Digital media. ftp://sidads.colorado.edu/DATASETS/NOAA/G02135/. Corresponding website: http://nsidc.org/data/seaice_index/archives/index.html

For the area definition see: https://nsidc.org/learn/ask-scientist/what-difference-between-sea-ice-area-and-extent

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The extent of the floating arctic sea ice as it develops through seasons and years.

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29 Avgust 2010

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(eng yangi | eng eski) Koʻrib chiqish (yangiroq 10 | ) (10 | 20 | 50 | 100 | 250 | 500)
Sana/VaqtMiniaturaOʻlchamlariFoydalanuvchiIzoh
joriy17:48, 23-Oktyabr 202317:48, 23-Oktyabr 2023 dagi versiya uchun tasvir810 × 540 (37 KB)Dominiklenneupdate to october 2023
21:07, 9-May 202321:07, 9-May 2023 dagi versiya uchun tasvir810 × 540 (37 KB)Dominiklenneupdate to april 2023
19:12, 4-Mart 202219:12, 4-Mart 2022 dagi versiya uchun tasvir810 × 540 (36 KB)Dominiklenneupdate until february 2022
00:39, 7-Noyabr 202000:39, 7-Noyabr 2020 dagi versiya uchun tasvir810 × 540 (42 KB)Dominiklenneupdate until october 2020
17:16, 27-Oktyabr 201917:16, 27-Oktyabr 2019 dagi versiya uchun tasvir810 × 540 (45 KB)Dominiklennedata added until september 2019, year scale extended to 2030
22:35, 30-Oktyabr 201822:35, 30-Oktyabr 2018 dagi versiya uchun tasvir810 × 540 (47 KB)Dominiklennedata updated until september 2018
22:44, 8-Iyul 201722:44, 8-Iyul 2017 dagi versiya uchun tasvir810 × 540 (47 KB)Dominiklennedata updated until june 2017
21:43, 22-Iyul 201621:43, 22-Iyul 2016 dagi versiya uchun tasvir810 × 540 (47 KB)Dominiklennedata updated until june 2016
21:43, 27-Avgust 201521:43, 27-Avgust 2015 dagi versiya uchun tasvir810 × 540 (40 KB)Dominiklenneminor y scale change to the same as in https://commons.wikimedia.org/wiki/File:Plot_arctic_sea_ice_area.svg
17:03, 27-Avgust 201517:03, 27-Avgust 2015 dagi versiya uchun tasvir810 × 540 (40 KB)Dominiklenneupdate until 2015 / 07. Use of python matplotlip pyplot instead of Gnumeric. Slightly different y-scale for better exhaustion of plot area.
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