Mufananidzo - Screenshot
Chando cheArctic chinonyungudika, uye inozviita zvakadaro nekukurumidza zvekuti inogona kunyangarika zvachose mumakumi mashoma emakore. Uye ndezvekuti, sezvo pasi richidziya, dombo rine chando rinoyangarara pamusoro peArctic Ocean nemakungwa aro akakomberedza haigone kuramba iripo.
Kusvika parizvino, isu taiziva kuti diki chando, ndiko kuti, chando chine makore mashoma chete ekuzvarwa, chinonyungudika nyore nyore muzhizha rinopisa. Asi zvinosuruvarisa, zvakare iyo »chando chekare» iri kutsakatika.
Arctic yegungwa kuyerwa kwechando hakuna kukwana, saka vaNASA vaongorori vakashandisa nzira yakagadziriswa neYunivhesiti yeColorado (United States) inovabvumidza kuve neruzivo kana rwakajeka ruzivo rwekuti rukoko rwashanduka sei yechando kubva muna 1984 kusvika zvino, kubvira inogona kuyera tembiricha, munyu, magadzirirwo uye chando chivharo iyo inozorora pamusoro pechando nekutenda paseti setiraiti microwave zviridzwa.
Nekudaro, ivo vakagadzira iyo animation iyo inoratidza kukura kwakaita chando uye kubvumirana mumakore makumi matatu apfuura.
Ikoko hakuna kumbove yakaenzana chando. Gore rega rega, inowedzera munguva yechando uye inoderera muzhizha. Izvi zvakajairika. Ichando chinopona munguva yechando chinova chakakora nekufamba kwenguva, ichigona kukura pakati pemamita imwe kusvika matatu mumakore ekutanga, uye nepakati pemamita matatu kusvika mana kana vari "chando chakare". Iyo yekupedzisira ndeye, nekudaro, inopokana nekukanganiswa nemafungu kana dutu; Zvisinei, hapana chinovadzivirira pakukwira kwetembiricha.
Walt Meier, muongorori paNASA Goddard Center muMaryland, United States, akadaro mazaya echando mazhinji akange arasika, uye akawedzera:
Muna 1980 makore mazhinji emakore akaumbwa zvinopfuura makumi maviri kubva muzana zvechando chakavhara. Nhasi vanongosvika 20%.
Kana maitiro akasachinja, iyo Arctic inogona kunge iine chando chisina chando munguva pfupi.