Nau'in yanayi na arctic ya saba da yankin belts na arctic da subarctic. Akwai irin wannan lamarin kamar daren polar, lokacin da rana ba ta bayyana sama da sararin samaniya na dogon lokaci. A wannan lokacin, babu isasshen zafi da haske.
Fasali na yanayin Arctic
Kebantaccen yanayin Arctic yanayi ne mai tsananin wahala. A nan ne kawai a wasu lokuta na shekara yawan zafin jiki ya tashi sama da sifili, a cikin sauran shekara - sanyi. Saboda wannan, ana yin kankara a nan, kuma wani ɓangare na babban yankin yana da murfin dusar ƙanƙara mai kauri. Abin da ya sa aka kafa duniya ta musamman ta flora da fauna a nan.
Bayani dalla-dalla
Babban halayen yanayin arctic:
- hunturu mai sanyi;
- gajere da sanyi rani;
- iska mai ƙarfi;
- hazo ya fadi kadan.
Hazo
Yankin Yanayin Arctic al'ada ya kasu kashi biyu. A yankin nau'in nahiyoyi, kimanin milimita 100 na hazo ya faɗi a shekara, a wasu wurare - 200 mm. A cikin yanayin yanayin teku, hazo ya ragu sosai. Yawancin dusar ƙanƙara suna faɗuwa, kuma a lokacin bazara, idan ƙarancin zafin ya kusan tashi zuwa 0 a ma'aunin Celsius, sai a yi ruwa.
Yankin yankin arctic
Yanayin Arctic ya saba da yankuna na polar. A Kudancin Yankin, irin wannan yanayin yana gama gari a yankin na yankin Antarctic. Amma arewa, ta mamaye Tekun Arctic, gefen Arewacin Amurka da Eurasia. Anan akwai bel na halitta na hamada.
Dabbobi
Dabbobin ruwa a cikin yankin canjin yanayi ba su da kyau, tunda abubuwa masu rai sun saba da yanayi mai wahala. Kyarketai na arewa da lemmings, New Zealand deer da polar fox suna zaune a yankin nahiyoyi da tsibirai. Akwai yawan shanun musk a cikin Greenland. Daya daga cikin mazaunan gargajiya na Arctic shine polar bear. Yana zaune a ƙasa kuma yana iyo a yankunan ruwa.
Duniyar tsuntsaye na wakiltar mujiya polar, guillemots, eiders, rosy gulls. Akwai garkunan hatimi da walrus a bakin tekun. Gurbatar yanayi, Tekun Duniya, narkewar kankara, dumamar yanayi na taimakawa ga raguwar yawan dabbobi da tsuntsaye. Wasu nau'ikan ana kiyaye su ta jihohi daban-daban. Don wannan, ana ƙirƙirar ɗakunan ƙasa.
Shuke-shuke
Tsarin tundra da hamada a cikin yanayin arctic ba shi da kyau. Babu bishiyoyi a nan, sai shuke-shuke, ciyawa, mosses da lichens. A wasu yankuna, a lokacin rani, polar poppies, bluegrass, alpine foxtail, sedge, da hatsi suna girma. Yawancin ciyayi suna karkashin dusar ƙanƙara, wanda ke sa wuya dabbobi su sami abinci da kansu.
Girma
Faɗuwar yanayin Arctic yana ɗaya daga cikin manyan alamomi. Gabaɗaya, zafin jiki a duk shekara ya fara ne daga + 5- + 10 zuwa -40 digiri Celsius. Wani lokaci a wasu yankuna akan samu raguwa har zuwa -50 digiri. Irin waɗannan yanayi suna da wahala ga rayuwar ɗan adam, sabili da haka, binciken kimiyya da hakar albarkatun ƙasa galibi ana aiwatar dasu anan.
Zazzabi
Yawancin lokacin hunturu yana cikin yankin yanayi na arctic. Matsakaicin yanayin zafin jiki shine –30 digiri Celsius. Lokacin bazara gajere ne, yana ɗaukar kwanaki da yawa a cikin watan Yuli, kuma zafin iska ya kai digiri 0, zai iya kaiwa + digiri 5, amma ba da daɗewa ba sanyi ya sake dawowa. A sakamakon haka, iska ba ta da lokaci don ɗumi a cikin ɗan gajeren lokacin bazara, glaciers ba sa narkewa, ƙari ma, ƙasa ba ta karɓar zafi. Abin da ya sa keɓaɓɓen yankin ke da dusar ƙanƙara, kuma kankara suna shawagi a cikin ruwa.
