Ukukhutshwa kwe-glacial akusekho ehlobo kuphela

IPerito Moreno Glacier

Ngexesha lasehlotyeni ukukhutshwa kweglacial yinto eqhelekileyo. Amaqondo obushushu afudumeleyo abangela ukuba umkhenkce unyibilike ngokukhawuleza. Kodwa ngexesha lobusika ulwandle emapalini luyabanda kwakhona, okanye ubuncinci yile nto luyenzileyo bade abantu babe nempembelelo enkulu kwindalo esingqongileyo.

Iqela leenzululwazi zaseSpain liqinisekisile ukuba ukukhutshwa komkhenkce kuzo zombini iipali kwandisiwe ngaphandle kwexesha lasehlotyeni. Ishumi leminyaka elidlulileyo, amaxabiso okuphuma aphezulu abhalwa kwiinyanga zikaJulayi nango-Agasti. Ngoku iqala ngoJuni ukuya ku-Okthobha.

Imilinganiselo yokugqibela yezi ngcali ngeprojekthi IGLAKMA (Ii-GLAciares, iiCrioKarts kunye neNdalo esingqongileyo) kubonakala ngathi zibonisa oko umkhwa unokuqhubeka ukwanda nangakumbikwinyanga ephelileyo ka-Meyi amaxabiso abhalisiweyo ebeqhelekile ekuqaleni kwehlobo. Idatha yokukhutshwa komkhenkce kuMantla eIkhweyitha iqhutywa kumkhenkce kwi-Arctic yaseSweden, eVatnajökull ice cap (Iceland), eqabeni laseSvalbard (eNorway) nakumantla eUrals (eRashiya).

Kwelinye icala, kuMazantsi eIkhweyitha, imilinganiselo yenziwa kwiindawo ezintathu zomkhenkce ezibekwe kwi-insular Antarctica, eArgentina Patagonia naseChilean Patagonia. Ke, banokuba nenethiwekhi yokujonga i-glacier kuzo zombini i-hemispheres, ethi Ivumela ukuba nolawulo lokuthelekisa ukukhutshwa komkhenkce ngokokuvela kwemozulu. Imozulu iya ifudumala kwaye iyafudumala kwiindawo ezininzi zehlabathi, ukuze ngenxa yokunyibilika kwinqanaba lolwandle linyuke.

Umkhenkce waseIceland

Ukuphakama kwenqanaba lolwandle sele kuyalinganiswa. Ukufudumala kwehlabathi kuyenzeka. Njengoko kuxeliwe yi-GLACKMA, Naziphi na ezi zinto zimbini ziphakathi zinokusetyenziselwa ukulinganisa ukuvela kokunyuka kwamaqondo obushushu, Obu bubushushu obufutshane kunye nokukhutshwa kolwelo lwe-glacial. Le yokugqibela ingumahluko ozinzileyo, ngenxa yoko ubuninzi benethi kunye namaxabiso asezantsi afunyenwe.


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