Wajen fitar kwarin Jet
 Wajen fitar kwarin Jet |
|---|
Jet ɗin fita kwarin ƙaƙƙarfan rafi ne, maɗaukakin iska wanda ke fitowa sama da mahadar kwarin da filin da ke kusa da shi. Waɗannan iskoki akai-akai suna kaiwa iyakar 20 metres per second (45 mph) a tsawo na 40–200 metres (130–660 ft) sama da ƙasa. Iskar da ke ƙasa da jet ɗin na iya karkatar da ciyayi amma ya fi rauni sosai.
Kasancewar waɗannan ƙaƙƙarfan kwararar iska mai ƙarfi acikin dare an rubutasu a bakin kwarin Alpine da yawa waɗanda ke haɗuwa da kwarin ruwa, kamar kwarin Inn na Ostiriya, inda jet ɗin ke da ƙarfi da za'a ji a ƙasa. A Amurka, an lura da sa hannun jirgin sama na ficewa a Kogin Fork Gunnison na Arewa a Paonia, Colorado; mafita daga Kudancin Boulder Creek kudu da Boulder, Colorado; Albuquerque, New Mexico a bakin Tijeras Canyon; da kuma bakin Canyon Fork Canyon a Utah.
Ka'idar[gyara sashe | gyara masomin]
Ana iya samun jirage masu saukar ungulu a yankunan kwari waɗanda ke nuna tsarin iska na tsaunuka na yau da kullun,kamar na busassun jeri na tsaunin Amurka.Waɗannan tsarin iska na yau da kullun ana tafiyar da su ta hanyar matsi a kwance.Saboda sauye-sauye na gaggawa akan ɗan gajeren tazara tsakanin matsi mai tsayi na kwarin da ƙananan matsi, gradients sunfi ƙarfi kusa da fitowar kwari, suna samar da jet.
Sauran abubuwan da ke haifar da yanayin da ke haifar da haɓɓaka saurin fitarwa,shine saurin iskar da ke tasowa acikin kwarin yayin da suke tafiya zuwa ƙananan tuddai acikin kwari,da tsarin iska mai sanyi na nutsewa da kwarara cikin fili.Zurfafan kwari da ke ƙarewa ba zato ba tsammani a fili waɗannan abubuwan sun fi tasiri fiye da waɗanda sannu a hankali ke zama ƙasa da ƙasa yayin da nisan kwari ke ƙaruwa.
Tasiri[gyara sashe | gyara masomin]
Jiragen fita daga kwarin na iya taka muhimmiyar rawa wajen rage gurɓacewar iska:
- Gudun iskar da ke fitowa cikin kwandon ya fi tsafta saboda ƙananan abun ciki na aerosol
- Haɗin kai tsaye wanda ya samo asali daga juzu'i mai juzu'i da kuma haɗuwar jet tare da ma'aunin kwandon ruwa yana rage ozone da sauran gurɓatattun abubuwa.
- Abubuwan da aka haifar a kusa da bakunan canyon suna hana jigilar gurɓatawa. [1]
Hanyoyin nazarin jiragen sama masu fita sun haɗa da hangen nesa da kuma kallo kai tsaye. An yi amfani da SODAR da Doppler LIDAR a cikin bincike da yawa don ganowa, ƙididdigewa da danganta jiragen zuwa jigilar yanayi na abubuwan haɗari. [2] Cikakkun bayanan martaba na iskõki a wuraren fita canyon za a iya lura da su kai tsaye da lissafta ta amfani da theodolite guda ɗaya ko biyu da tethersondes .
Ganewa da auna jiragen fita kwarin kuma na iya taimakawa sosai wajen sarrafa gobara, saboda sau da yawa wuta tana hawa jiragen kwarin, da kuma haɓaka makamashin iska.
Manazarta[gyara sashe | gyara masomin]
- ↑ Darby, L.S., and R.M. Banta (2006) The modulation of canyon flows by larger-scale influences. Preprints, 12th Conf. on Mountain Meteorology. Amer. Meteor. Soc., 14-4.
- ↑ Banta, R.M., L.D. Olivier, P.H. Gudiksen, and R. Lange, (1996). Implications of small-scale flow features to modeling dispersion over complex terrain. J. Appl. Meteorol., 35:3, 330-342.