M’nyengo yozizira kwambiri ya mu 1947, tawuni yaing’ono ya Snag, yomwe ili m’dera lokongola la Yukon ku Canada, inakumana ndi nyengo zomwe sizinachitikepo. M’kati mwa kuzizira kumeneku, kutentha kunatsika modabwitsa kufika pa -83°F (-63.9°C) pa February 3, 1947, kupangitsa kuti likhale tsiku lozizira kwambiri lomwe linalembedwapo m’mbiri ya Canada. Mikhalidwe yoipitsitsa imeneyi inabweretsa zinthu zingapo zochititsa mantha, kuphatikizapo luso lodabwitsa la kumva anthu akulankhula kuchokera patali makilomita anayi, mpweya kukhala ufa, ndi kuwomba kwa madzi oundana ooneka ngati kulira kwa mfuti. Ndiye zomwe zidachitika m'dziko losakhulupirira la Snag tsiku lomwelo.
Phokoso lochititsa mantha
Yerekezerani kuti mwaimirira pakati pa mpweya wozizira kwambiri, mutaunjika zovala zofunda, ndipo mukumva zimene zikuoneka ngati zikukambitsirana chapatali. Malinga ndi nkhani za anthu okhala ku Snag, panthawi yozizira kwambiriyi, phokoso linkamveka momveka bwino kuposa masiku onse. Modabwitsa, munthu amakhoza kuzindikira makambitsirano ali pa mtunda wa makilomita anayi, chinthu chodabwitsa chimene chinali chosamveka m’nyengo yanyengo yabwino.
Mpweya wozizira kukhala ufa
Chinthu chinanso chochititsa chidwi chimene chinadodometsa anthu okhala mumzinda wa Snag chinali mmene kuzizira kwambiri kunawakhudzira mpweya wawo. Akamatuluka, mpweya wawo unkasintha n’kukhala tinthu ting’onoting’ono tomwe timatulutsa timadzi timeneti tisanatsikire pamalo owuma. Kusintha kwa ethereal kumeneku kunawonjezera mtundu wina wadziko lapansi kumadera omwe kale anali m'nyengo yozizira. Kwa ambiri, chochitika chodabwitsachi chimangogogomezeranso mphamvu yosangalatsa ya Amayi Nature ku Snag.
Kuphulika kwakukulu kwa ayezi wamtsinje
Monga kuti zomwe tafotokozazi sizinali zokwanira, anthu a mumzinda wa Snag anaonanso phokoso lamphamvu lochokera mumtsinje wa Yukon wozizira kwambiri. Kuphulika ndi kung'ambika kwa madzi oundana kunamveka m'tauniyo, kumveka ngati kulira kwa mfuti ndipo kumapangitsa kuti munthu azinjenjemera mosavuta.
Sayansi kuseri kwa zochitika zachilendo za Snag
Kuphatikiza kwa kutentha kwapansi ndi kusintha kwa kachulukidwe ka mpweya kunathandizira kwambiri kupanga zochitika zododometsa maganizozi. Kukazizira koopsa, mpweyawo umakhala wandiweyani, zomwe zimapangitsa kuti mafunde azimveka kuyenda momveka bwino kusiyana ndi nyengo yanthawi zonse. Zotsatira zake, zokambirana zinkamveka patali, zomwe zinapatsa Snag kukhala wodabwitsa kwambiri. Momwemonso, chinyontho cha mpweya wotulutsa mpweya chimaundana mwachangu ndikusungunuka chifukwa cha kutentha pang'ono, ndikuchisintha kukhala chinthu ngati ufa. Potsirizira pake, kuzizira koopsa kumapangitsa kuti mtsinjewo ukhale wolimba kwambiri, kumapangitsa kuti madziwo azing'ambika ndi kuphulika, kutulutsa mawu ofanana ndi kulira kwamfuti.
Nthawi yozizira yozizira: Kukongola kwa Canada
Pankhani ya nyengo yoipa, Canada imadziŵika chifukwa cha nyengo yozizira kwambiri. Nawa malo 10 ozizira kwambiri ku Canada - kale, kapena kuyambira pomwe akhala akusunga mbiri yanyengo:
- -63°C - Snag, Yukon - February 3, 1947
- -60.6°C - Fort Vermilion, Alberta - Januware 11, 1911
- -59.4°C - Old Crow, Yukon - Januware 5, 1975
- -58.9°C — Smith River, British Columbia — January 31, 1947
- -58.3°C — Iroquois Falls, Ontario — Januware 23, 1935
- -57.8°C - Shephard Bay, Nunavut - February 13, 1973
- -57.2°C - Fort Smith, Northwest Territories - December 26, 1917
- -56.7°C - Prince Albert, Saskatchewan - February 1, 1893
- -55.8°C - Dawson City, Yukon - February 11, 1979
- -55.6°C — Iroquois Falls, Ontario — February 9, 1934
Ngakhale kuti nyengo yachisanu imeneyi imalepheretsa anthu ena, ena amaona masiku ozizira kwambiri a ku Canada ngati mwayi woti adzioneretu kukongola ndi kulimba mtima zimene dziko lalikululi limapereka.
Kuthana ndi mavuto
M’malo mopewa kuzizira koopsa, anthu a ku Canada aphunzira kuvomereza ndi kukondwerera nyengo yovutayi. Madera ambiri m'dziko lonselo amachita zikondwerero zachisanu, monga Winter Carnival yapachaka ya Quebec City, yomwe imasonyeza zinthu zambiri zakunja kuphatikizapo ziboliboli za ayezi, sledding ya agalu, ndi mpikisano wamabwato oundana. Zochitika izi zimapereka mwayi wodabwitsa kwa anthu aku Canada komanso alendo kuti alowe mu chisangalalo ndi chisangalalo cha nyengoyi.
Zodabwitsa zachisanu
Kuzizira koopsa kumapanganso chodabwitsa chomwe chimakopa chidwi cha anthu am'deralo komanso alendo. Pamene nyanja, mathithi, ndi mitsinje zikuundana, pamakhala zodabwitsa zachilengedwe zochititsa mantha. Mwachitsanzo, Nyanja ya Abraham ku Alberta imasandulika kukhala chinsalu chochititsa chidwi cha thovu lozizira lotsekeredwa mu ayezi. Mapangidwe ochititsa chidwiwa, opangidwa ndi kutulutsidwa kwa mpweya wa methane kuchokera ku zomera zowola, akhala nkhani yofunika kwambiri kwa ojambula omwe amayenda padziko lonse lapansi kuti atenge zinthu zochititsa chidwizi.
Zosangalatsa ku Great White North
Masiku ozizira kwambiri ku Canada amakhala ngati njira kwa anthu okonda ulendo kuti awone malo odabwitsa a dzikolo, ndikuchita zinthu monga skiing, kukwera madzi oundana, kukwera chipale chofewa, ndi kuyenda pa chipale chofewa. Anthu okonda panja amakhamukira kumalo osungiramo nyama, monga Banff ndi Jasper ku Alberta kapena Algonquin ku Ontario, kukazizwa ndi nsonga zokutidwa ndi chipale chofewa, nyanja zoundana, ndi malo owoneka bwino, kupangira zokumana nazo zosaiŵalika komanso mwayi wojambula zithunzi.
Mawu omaliza
Ngakhale kupirira kuzizira kwambiri sikungakhale kapu ya tiyi ya aliyense, tsiku lozizira kwambiri ku Canada limapereka mwayi wapadera wowona kukongola kodabwitsa komanso kulimba mtima kwa dziko lodabwitsali. Kuchokera ku zikondwerero za nyengo yachisanu ndi zodabwitsa zozizira mpaka ku zochitika zakunja, kutentha kozizira kwambiri kumapereka mpata wofufuza ndi kuyamikira zodabwitsa zachilengedwe za Canada mu kukongola kwawo kwachisanu. Kumbali inayi, nkhani yosangalatsa ya Snag ikuchitika ngati mphindi yodabwitsa m'mbiri yaku Canada. Zimatikumbutsa za mphamvu zochititsa mantha za m’chilengedwe komanso kuti zimatha kutichititsa kukhala odabwa komanso odzichepetsa.
Pambuyo powerenga za tsiku lozizira kwambiri ku Canada, werengani za 1816: “Chaka chopanda chilimwe” chimabweretsa masoka padziko lapansi.
