Iskar catabatic

catabatic kwararaA yau za mu yi magana game da wani nau'in iska mai iska wanda ya zama ruwan dare a wurare da dama a kasarmu saboda yanayin tsaunuka.

 

A cikin tsakar dare dare iska tana tafiya tare da gangaren tsaunuka ko tsaunuka kuma yana sauka cikin kwari inda yake ci gaba da tafiya zuwa filayen. Ana kiran wannan nau'in kwararar iska mai katabatic (ya fito daga Girkanci kuma yana nufin "ƙasa"). Yana saitawa cikin dare lokacin an sanyaya ƙasa ta hanyar radiation.

 

Iskar da ke hulɗa da wannan ƙasa mai sanyi tana sanyaya kuma biyun ya zama mai yawa fiye da iska mai kewaye; don haka nauyi yana tilasta ka ka gangara zuwa tudu kuma an kafa kwararar iska zuwa ƙasa. Iska yana kasancewa cikin ma'amala da ƙasa mai sanyi kuma yana ci gaba da rasa zafi; saboda haka dumama ba adiabatic bane (yana musayar zafi da matsakaici) kuma motsi yaci gaba.

 

Gabaɗaya, irin wannan iska mai ƙarfi tana da rauni sosai. Koyaya, a wasu halaye, lokacin da gangaren ya kasance mai santsi da santsi, zai iya kaiwa ga ƙarfi. Wannan shine abin da ke faruwa yayin da saman ya rufe da dusar ƙanƙara ko kankara, wani abu da ya zama ruwan dare gama gari a cikin Antarctica. Idan tsaunuka suna kusa da teku, iska mai tsauni na iya ƙarfafa iskar ƙasar a cikin dare, yana haifar da iska mai ƙarfi a cikin teku.

 

iska mai katabawa a Antarctica

Aƙarshe, yi tsokaci akan cewa iska mai haɗari yana ɗayan hanyoyin da ake buƙata don abin da ke faruwa juyawar zafi, tun da iska mai sanyi ta nauyi zai kasance a gindin kwaruruka, yanayin zafin yana da ɗan girma a saman tsaunuka.

 


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