Alaska ihu igwe mpaghara

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Na Alaska, ihu igwe na-agbanwe site na mmiri gaa na subarctic, nke na-eme ghọọ arctic. Nke a emeela ihe dị iche iche nke ọnọdụ ihu igwe, n'ihi nke a nwere ike ịkọwa mpaghara ihu igwe ise. E nwere mpaghara mmiri gbara gburugburu na nnukwu mmiri, ugwu na mpaghara nke permafrost.

Mmiri ihu igwe mpaghara

Akụkụ ndịda nke peninshula dị na mpaghara ihu igwe ụgbọ mmiri, nke ọnọdụ ihu igwe nke Pacific Ocean na-emetụta. A na-edochi ya na ihu igwe nke mmiri mmiri na-agụnye Central Alaska. N'oge ọkọchị, ihu igwe na-emetụta ọtụtụ ikuku nke na-esi na mpaghara Bering Sea. Mmiri ikuku na-ada oyi na-efe n'oge oyi.

E nwere mpaghara mgbanwe n'etiti kọntinent na ụdị mmiri nke ihu igwe. Otu ọnọdụ ihu igwe akọwapụtakwara ebe a, nke ndịda na ndịda ikuku ikuku na-emetụta n'oge dị iche iche n'afọ. Ọnọdụ ihu igwe na-ekpuchi mpaghara ime ime Alaska. Ugwu kasị dịdebere na peninshula ahụ dị nso n’ebe ugwu ihu igwe. Nke a bụ mpaghara nke Arctic Circle.

Na mkpokọta, na Alaska, oke iru mmiri na ọdịda na-ada site na 3000 mm ruo 5000 mm kwa afọ, mana ọnụọgụ ha enweghị aha. Ihe ka ọtụtụ n’ime ha dara na mpaghara mgbago ugwu, ma opekata mpe ha niile n’ụsọ ebe ugwu.

Ọ bụrụ na anyị na-ekwu maka ọchịchị okpomọkụ nke Alaska, mgbe ahụ na nkezi ọ dịgasị site na + 4 degrees to -12 Celsius. N'oge ọnwa ọkọchị, a na-edekarị ogo okpomọkụ dị elu +21. Na mpaghara oke osimiri, ọ bụ + 15 ogo n'oge ọkọchị, na ihe dịka -6 n'oge oyi.

Alaska nke okpuru mmiri

Mpaghara tundra na ọhịa-tundra dị na ihu igwe subarctic. Oge okpomọkụ ebe a dị ezigbo mkpụmkpụ, n'ihi na snow na-amalite agbaze naanị na mmalite nke June. Okpomoku di ihe dika izu ato rue ano. E nwere ehihie na abalị ehihie karịa Arctic Circle. Na nso ebe ugwu peninshula, ọnụọgụ mmiri na-ebelata ruo 100 mm kwa afọ. N'oge oyi, na mpaghara subarctic, ọnọdụ okpomọkụ na-adaba na -40 degrees. Oge oyi na-adịru ogologo oge ma n'oge a ihu igwe na-esi ike. Ọnụ ọgụgụ kasị ukwuu nke ọdịda na-adaba n'oge ọkọchị, mgbe ọnọdụ okpomọkụ na-arị elu ruo ogo +16 ogo. N'oge a, a na-ahụ mmetụta nke oke ikuku ikuku ebe a.

N'ebe ugwu Alaska na agwaetiti ndị gbara ya gburugburu nwere ihu igwe. E nwere ọzara ohia ndị nwere lichen, moss, na glaciers. Oge oyi na-adịkarị ọtụtụ afọ, n'oge a, ọnọdụ okpomọkụ na-adaba na -40 degrees. Enweghi odida. Ọzọkwa, enweghị oge okpomọkụ ebe a, n'ihi na okpomọkụ anaghị adịkarị elu karịa ogo 0.

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