Greenland's Sermeq Kujalleq glacier is drifting so fast that it produces more glaciers than any other glacier.

in blurtphoto •  3 years ago 

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Grønlands Sermeq Kujalleq-gletsjer driver så hurtigt, at den produserer flere gletscher end nogen anden gletscher. Derfor har det en væsentlig effekt på indlandsisens samlede vægttab. I bunden af ​​Kangia isfjord nær Ilulissat ligger Grønlands hurtigst strømmende og frugtbare gletscher, Sermeq Kujalleq (Jakobshavn Isbræ). Gletscheren har længe været en af ​​de faktorer, der bidrag til den overlord de balance i skulden, da den hvert år fører så meget is ud i havet, at fødsels udsving her er en komplet beregning af, hvor koldt et koldt skift kan vokse. eller redusere..
Greenland's Sermeq Kujalleq glacier is drifting so fast that it produces more glaciers than any other glacier. Therefore, it has a significant effect on the total weight loss of the ice sheet. At the bottom of the Kangia Icefjord near Ilulissat lies Greenland's fastest flowing and most productive glacier, Sermeq Kujalleq (Jakobshavn Icebreaker). The glacier has long been one of the factors contributing to the overdue balance of the debt, as it carries so much ice into the sea each year that birth fluctuations here are a complete calculation of how cold a cold shift can grow. or reduce..

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Sermeq Kujalleq er meget stor - den er næsten en kilometer tyk og har mere end syv kilometer is, der danner en mur bag Kangia Fjorden. Siden midten af ​​00'erne har gletsjeren frigivet 40 til 50 gigatons (GT) is i fjorden (40 til 50 milliarder tons), hvorfra den stadig strømmer ud i havet (se neden for)..
Sermeq Kujalleq is very big - it's almost a kilometre thick and has more than seven kilometres of ice forming a wall behind Kangia Fjord. Since the mid-00s, the glacier has released 40 to 50 gigatons (GT) of ice into the fjord (40 to 50 billion tonnes), from where it is still flowing out to sea (see below).

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Til sammenligning ud sender den næstmest produktiv gletscher, kaldet Helheim-gletsjer, 25 til 35 gletscher om året. Faktisk er Sermeq Kujalleq så produktiv, at den formentlig er den eneste, der útil har bidraget med omkring tre procent til den globale havstigning og udgør omkring ti procent af alle gletsjere, der hvert år strømmer ind i Grønland fra havet..
By comparison, the second most productive glacier, called Helheim Glacier, sends out 25 to 35 glaciers a year. In fact, Sermeq Kujalleq is so productive that it is probably the only one that has contributed about three percent to global sea level rise and accounts for about ten percent of all glaciers that flow into Greenland from the sea each year..

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Sermeq Kujalleq er et vigtigt ur, fordi hvis gletsjeren vokser for meget, kan det påvirke den overordnede vægtbalance af den indre is. Gletsjer, som self Inland Ice, er meget dynamique i størrelse og varierer i størrelse hvert år. år, afhængig af kælvning eller vægttab allerede. Ligesom iskoldt kød skifter fra vinter til sommer, har gletsjer også en tendens til at vokse om vinteren og skrumpe om sommeren..
Sermeq Kujalleq is an important clock because if the glacier grows too much, it can affect the overall weight balance of the inner ice. The glacier, which self Inland Ice, is very dynamic in size and varies in size each year. year, depending on calving or weight loss already. Just as ice-cold meat changes from winter to summer, glaciers also tend to grow in winter and shrink in summer..

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Ved hjælp af moderne satellitsporing kombineret med gamle kort og førende lokalitet observationer fra 1850 erne kan det sies, at Sermeq Kujalleq siden er begyndt at miste mere is, end der tilføres fra det indre. Som følge heraf er gletsjer dens overflate nu mere end 40 kilometer tilbage den tidligere (se kort nedenfor med positionen af ​​gletsjerens overflade ved slutningen af ​​de markerede smelteår). Tilbagetoget er så hurtigt, at det kun kan tilskrives menneskeskabte klimaforandringer..
Using modern satellite tracking combined with old maps and leading site observations from the 1850s, it can be seen that Sermeq Kujalleq has since begun to lose more ice than is being added from the interior. As a result, the glacier's surface is now more than 40 kilometres back the previous one (see map below with the position of the glacier's surface at the end of the marked melting years). The retreat is so rapid that it can only be attributed to human-induced climate change..
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