Geography. On yintoni kwilizwekazi Akukho milambo

abalandeli ezininzi IJografi umbuzo ngayo, yintoni kwilizwekazi Akukho imilambo? Nge ingcamango encinane, unako ukukhumbula ukuba umlambo ngokuqinisekileyo apho eAfrika, eAsia, eYurophu, le ndawo yiMelika nkqu eOstreliya, nangona uninzi kuba yinkangala kushushu, kukho asixhenxe imilambo amahle elide. Kukho ukhetho enye kuphela - ku Antarctica.

On yintoni kwilizwekazi Akukho imilambo?

Ngenxa yokuba 99% bobume ogqunywe Glacier Antarctica, Ebubanzini amakhulu isiqingatha sekhilomitha inokubonakala imilambo ukungabikho ezweni ezicacileyo kunye namachibi. Noko ke, oku akuyonyaniso.

Ukuphendula umbuzo malunga koko, yintoni lizwekazi akanayo imilambo namachibi, kubalulekile ukuba eli lizwekazi akakho apho, kodwa yokwenza zithatha ezimbalwa. Ingongoma yokuqala ebalulekileyo olandelayo - e Antarctica ngokwenene akukho imilambo esisigxina, kodwa kwezinye elilungileyo ngakumbi ukuba ubomi kwiingingqi eMhlabeni, imilambo kuvela kuphela ngexesha lemvula.

On mpumalanga umlambo enomkhenkce kuvela kuphela kunayo yonke zilinganiso Antarctic kwaye idla i-idreyini meltwater ukususela kwimida omkhenkce. Ezi imifula izifundo mpawu olukhawulezileyo kwaye baphathe nabo isixa enkulu kangangoko wamanzi.

Ngoko ke, kucacile, yintoni kwilizwekazi Akukho imilambo, ubuncinane, rhoqo. Nakuba kunjalo, kufuneka uwaxelele malunga imilambo onyaka.

Meltwater e Antarctica

Nangona umkhenkce yanaphakade Antarctica ezingaphezu kwama asixhenxe ekhulwini amanzi-langa okutsha, imozulu ilizwekazi luphawulwa wembalela. Kwezinye iindawo lamwela iisentimitha nangekho ngaphezulu kweshumi yimvula ngonyaka, kwaye kwezinye iindawo nomoya yelizwekazi ndayihluthwa imvula kangangeenkulungwane ezininzi.

Xa ezinjalo iimeko ezinzima kwi pay ingqalelo nkqu nomthamo zincinane amanzi anyibilike, leyo esixhenxe e Antarctica. Abaninzi kubo baye kangako elide, naphantsi nezinye iimeko ke kuhoywa. Nangona kunjalo, kwiimeko ezimaxongo Antarctica kunye ezi imilambo zibalulekile.

I-flow imfutshane meltwater uthwele igama weLuzon Creek, kwaye ubude balo akufuneki ube ngaphezu kweemitha ezine. Kwangaxeshanye, umlambo lide ixesha lifikelela ubude kweekhilomitha mane.

Onyx River, ekubeni elide e Antarctica, umzekelo dama undrained, oko kukuthi, idibanisa amachibi ezimbini yaxakathwa ezahlukeneyo Wright Valley. Kakade ke, akukho iintlanzi kulo mlambo ayikho njengesiqhelo, kodwa ubomi zahlukahlukene kakhulu izidalwa zamandulo ngakumbi.

ichibi subglacial

Kokuba kusetyenzwe impendulo yombuzo koko nemisinga akukho imilambo, ungaya umbuzo lobukho amachibi e Antarctica. Njengokuba sele kucaca, xa iimeko zemozulu belizwekazi esemazantsi akakwazi akukho imilambo esisigxina okanye umphezulu elwandle, kodwa umkhenkce Antarctic elikhulu ubukhulu kudala iimeko kakuhle ukuze kwakhiwe amachibi glacial kwikholam.

Eziphawuleka kakhulu ngokwemiqathango kwichibi kwelizwekazi i East, wafumana igama lawo igama kwesikhululo yenzululwazi ekufuphi nalapho. Ichibi use-kubunzulu kweekhilomitha ezine phantsi ngumkhenkce, kwaye ubude bayo ngumgama oziikhilomitha amabini, anamanci mahlanu kwi ububanzi malunga amahlanu neekhilomitha.

Njengoko iingcali zithi, idike inokuba ubomi, ngokuba amanzi awo zizityebi ioksijini, kwaye iqondo layo na izinyuko ezilishumi ngasentla zero. Ngoko ke, ekuphenduleni umbuzo wokuba ingaba, koko kwilizwekazi Akukho imilambo namachibi, kuyimfuneko ukuba ukuchaza iimeko ezithile apho kukho lizwekazi. Ngenxa umahluko olukhulu eli lizwekazi kwabanye, akukho nto ayimangalisi kukuba onke amagama yejografi isebenza kuphela ndandithingaza.