Umhlaba we-Snowy apho kuvela khona iimbombo ze-polar

I-Arctic yintsimi ecaleni kweNxweme yaseNyakatho. Iquka i-Arctic Ocean kunye neziqithi ezisuka kumantla eNyakatho Melika nase-Eurasia. Leli lizwe apho kubonakala khona iibherela. Kwaye igama layo livela kwi-Greek "arctos", elithetha ibhere. Kwaye kwiimeko ezibuhlungu ukuba ummangalisa omangalisayo kunye nomngqamzana onqabileyo weentlango zeqhwa ahlala kuyo.

Musa ukutshintsha imeko engqongileyo

Ihlabathi apho iimbombo ze-polar zifunyenwe ziziqithi zeqithi zezilwanyana zase-Arctic Ocean kunye nomda welizwekazikazi. Umngcipheko wendalo. Nangona kunjalo, ibhere elihlala apha lifumana lula ukutya kunye nendawo yokukhusela phakathi kweqhwa elingenamkhawulo. Ngokuqhelekileyo kwenzeka ukuba kunye neebhere ezihambayo ezihambayo zifika e-Iceland, kunye noLwandle lwase-Okhotsk kunye nolwandle lwaseJapan. Kodwa emva kohambo olunjalo, bahlala bebuyela kwindawo yabo eyaziwayo, benza utshintsho olukhulu, behamba ngokuthe ngqo kumntla.

Iingcali zenzululwazi ziye zaphawula ukuba ibhere elimhlophe linamathele kwiindawo ezithile, ngokukodwa uthanda imithombo yamanzi engenaqhwa. Ebusika, ithamncwa inqwenela emaphethelweni asezantsi e-Arctic ice. Kodwa ehlotyeni iimbombo zizulazula ngokubanzi, zize zifike kwisibonda esisentla. Iindawo apho zifunyenwe yiArtictic yonke. Kodwa ukususela kuma-88 degrees ngasentla kwi-latitude kunye nakwimntla, inqabana inqabile.

Indlela yokusinda kwihlabathi elibandayo

Ingakanani ibhere le-polar lilinganisa? Amadoda amadala, ngokukodwa abo atholakala kwiLwandle lwaseBering, angafikelela kumgangatho weemitha ezintathu kwaye alinganise ngetoni kwaye nangaphezulu. Lezi ziqhwala. Isilwanyana esinjalo sinqabileyo ngokukhawuleza ikhephu eligqithiseleyo kwaye ngokukhawuleza lihamba ngaphaya kweqhwa, lidlula usuku ukuya kwi-30-40 km. Iimitha ezi-2 zamanzi ezi-ice cream nazo aziyiyona ingxaki yeebhere, okuyinto emangalisa kunikwe ubungakanani bayo obukhulu. Ukongeza, iibhere ze-polar zihamba kakuhle. Bayakwazi ukunqoba ukugebha ukuya kuma-80 km emanzini amnyama aseArtictic. Kukho kwimeko apho ibhere ligijima i-685 km, ngelixa lilahlekelwa ngu-48 kg (20% yesisindo sayo).

Zonke zilungele ukuhlala phakathi kweqhwa elibandayo. Ubomvu obomhlophe bubamba kakuhle ukukhanya kwelanga, kwaye kulezi zixhobo zixabisa ubunzima bayo kwigolide. Izinwele ezingenayo ziqulethe umoya, zisinceda zihlale zifudumele. Uluhlu olunamandla lwamanqatha phantsi kwesikhumba ebusika lufikelela ku-10 cm ubukhulu.

Esi sikhulu esinamandla sondla izilwanyana zaselwandle: i-walrus, izibindi, njl njl. Ukuzingela, ihlaba intloko intloko yayo, xa iphuma emanzini, ize ikhuphe emanzini. Nangona kunjalo, i-walrus ngale ndlela ayikwazi ukunqotshwa, kunye nesilwanyana esimhlophe sinokuhlangabezana kuphela nomhlaba. Ibhere libuyisela isikhumba kunye namafutha, xa kungekho nzolo ekhethekileyo, yonke imithi ifika kwiimpukane ze-arctic.

Izimo ezinzima zommandla we-Arctic, apho kukho iibhere ze-polar, musa ukuvumela ezi zilwanyana ukuba zande ngokudlwengula. Kulo lonke ubomi bakhe, ibhere lingayivelisa ngaphezu kweebhite eziyi-15. Ngelo xesha, ukufa kwabantu abaselula kuya kuma-30%. Ukuba usacinga ingqalelo ngokusondeza kwelo lwanyana, ngoko isiphelo siphumelele malunga nosongelo lobukho beebhere njengezifo.

Ibhere le-polar yaba yindoda yamazwi amaninzi, iimbali, iifilimu kunye neekhathuni. Abantu bathanda iibhere ze-Arctic, ngamanye amaxesha zihlekisayo. Kwaye umda apho iimbombo ze-polar zifunyenwe ziyimfihlakalo kwaye zingachangekanga kwiininzi zethu.