A Alaska, canjin yanayi ya canza daga ruwan teku zuwa na karkashin ruwa, wanda ya rikide zuwa na arctic. Wannan ya haifar da keɓaɓɓun yanayin yanayi, sakamakon haka ana iya rarrabe yankuna masu yanayin sau biyar. Akwai muhimmin yankin bakin teku da manyan albarkatun ruwa, tsaunuka da yankunan permafrost.
Yankin yanayin ruwa
Yankin kudanci na yankin teku yana cikin yankin yanayi na teku, wanda sauyin yanayi na Tekun Fasifik ya rinjayi shi. Ana maye gurbin ta da yanayin teku na teku wanda ya mamaye tsakiyar Alaska. A lokacin bazara, yawan tasirin iska yana shafar yanayi daga yankin Tekun Bering. Hanyoyin iska na Nahiyoyi suna busawa a lokacin sanyi.
Akwai yanki na rikon kwarya tsakanin nau'ikan yanayi da na ruwa. Hakanan akwai wasu keɓaɓɓun yanayin yanayi a nan, waɗanda yawancin kudu da arewacin iska ke shafar su a lokuta daban-daban na shekara. Yanayin nahiya ya mamaye yankuna na ciki na Alaska. Yankin arewa na zirin teku yana cikin yankin canjin yanayi. Wannan shi ne yankin Arctic Circle.
Gabaɗaya, a Alaska, babban matakin ɗanshi da hazo suna faɗuwa daga 3000 mm zuwa 5000 mm a shekara, amma adadinsu bai daidaita ba. Fiye da duka suna faɗuwa a yankin gangaren tsaunuka, kuma mafi ƙarancin duka a gabar arewacin.
Idan muka yi magana game da tsarin zafin jiki a Alaska, to a matsakaita ya bambanta daga + digri 4 zuwa -12 digiri Celsius. A cikin watanni na rani, ana rikodin matsakaicin matsakaicin digiri + 21 a nan. A yankin bakin teku, yana da digiri + 15 a lokacin bazara, kuma kusan -6 a lokacin sanyi.
Yanayin yanayin yankin Alaska
Yankunan tundra da gandun-tundra suna cikin yanayin sauyin yanayi. A nan lokacin rani gajere ne sosai, yayin da dusar ƙanƙara take fara narkewa kawai a farkon Yuni. Zafin yakan kwashe kimanin makonni uku zuwa hudu. Akwai ranakun kwana da dare a bayan Arctic Circle. Kusa da arewacin yankin teku, yawan hazo yana raguwa zuwa 100 mm a shekara. A lokacin hunturu, a yankin subarctic, yawan zafin jiki ya sauka zuwa -40 digiri. Lokacin hunturu yana dadewa sosai kuma a wannan lokacin yanayin yana da tsauri. Mafi yawan ruwan sama ya fadi a lokacin bazara, lokacin da zafin jiki ya tashi zuwa matsakaicin + digiri 16. A wannan lokacin, ana lura da tasirin matsakaitan iska a nan.
Arewa mai nisa ta Alaska da tsibirai da ke kewaye da ita suna da yanayin yanayi. Akwai jeji mai duwatsu tare da lichen, mosses, da glaciers. Lokacin hunturu yakan dauki tsawon shekara, kuma a wannan lokacin zafin ya sauka zuwa -40 digiri. Babu kusan hazo. Hakanan, babu lokacin rani anan, saboda ƙarancin zafin jiki da ƙyar yakan tashi sama da digiri 0.
