Iskar tsaunuka

iska mai zurfi, iska mai zurfi ko kwararar iska ce ta cikin gida da ke hurawa ta hanyar rata tsakanin duwatsu.

Iska mai zurfi iska ce mai ƙarancin matakin kuma ana iya haɗa ta da iskõki masu ƙarfi na 20-40 knots kuma a wani lokaci fiye da 50 knots. Iska mai nisa yawanci ya fi karfi kusa da fita daga rata.

Misali ya haɗa da iskõki na sama da ke hurawa ta hanyar Strait of Gibraltar - ɗayan iskõki masu ƙarfi a wannan yankin ana kiransu Levanter. Irin wannan iskõki suna faruwa a wasu gibin a cikin tsaunuka, kamar tehuantepecer da jochwinde, kuma a cikin tashoshi masu tsawo, kamar Strait of Juan de Fuca tsakanin Dutsen Olympic na Washington da Vancouver Island, British Columbia, Hinlopen Strait kusa da Spitsbergen. A cikin Kogin Columbia a kan iyakar Washington da Oregon, yawan iskar iska ya haifar da shigar da gonakin iska, da kuma yawan iska da ke faruwa a Kogin Columbia.

Wani misali shine Iska ta Koshava a Serbia wanda ke hurawa tare da Kogin Danube .  Duwatsun Kudancin Carpathian da Dutsen Balkan suna ba da gudummawa zuwa cikin kogin Danube a Romania kuma jirgin da ke fita a Iron Gates an san shi da iska ta Koshava. Babban halaye na iskar Koshava shine saurin iska mai ƙarfi, shugabanci na kudu maso gabas, juriya, da gustiness.

Gabaɗaya, iskõki masu wucewa suna shafar yanayin yankin (kudancin Faransa), da kuma ciyayi. Har ila yau, suna haifar da mummunan gobara a yankunan da abin ya shafa. Sakamakon gusts na iya kaiwa sama da 100 km / h kuma ya haifar da lalacewar dukiya.

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