Mene ne iyakacin duniya ciki?

Iyakacin duniya ciki - na halitta samuwar. Wadannan halitta tsarin samar da kuma gano amfani da na al'ada meteorological saƙonni ba haka ba ne mai sauki. Saboda haka, su ne barazana ga mariners, iska dako da kuma sauran mutum aiki a arewacin yankunan. Yadda unpredictable da kuma kawo hadari iyakacin duniya ciki, wani sabon abu, bari mataki-mataki.

Tarihi na samu

Iyakacin duniya ciki - wani sabon abu da nufin wani yanayin tsarin na gwada da kananan sikelin, wanda shi ne short-rayu kuma halin low matsa lamba. An kafa a kan teku a duka hemispheres a gefen babban iyakacin duniya gaba. Farkon nazarin da shawarar cewa babban dalilin da ya faru - thermal rashin zaman lafiya. Amma wannan bayani ya da nisa sosai daga gaskiya. Daga baya muka yi nazari kan yanayin samuwar. A karo na farko da irin wannan halitta tsarin da aka samu a kan meteorological images cewa sun zama available a cikin 60-ies karni na karshe.

A high latitudes, da kwararru da aka shakka dukan yawa vortex na girgije. Suka gano a kan kankara-free yankunan da aka ambata a sama tekuna, a kan Labrador, kazalika da Gulf of Alaska. An lura da cewa iyakacin duniya ciki dissipated hanzari isa a landfall. Nordic abokan aiki Antarctic cyclones yawanci weaker, saboda duk tare nahiyar fuskantar hawa da sauka a daban-daban yanayin zafi. Ko da yake wani lokacin ma a cikin kudancin tekun iya tsayar muhimmancin wannan sabon abu.

Tauraron Dan Adam images ƙyale mu mu kammala da cewa, iyakacin duniya ciki ne halin da dama girgije siffofi da cewa za a iya kafa daga wani karkace makada na girgije enveloping da cibiyar ko kusa da iyakacin duniya gaban dauki siffar wani waƙafi. A gaskiya, dangane da tsarin da kuma mataki na hatsarin da yanayin mamaki, da tsanani da kuma gudun yaduwa.

Ginshikai na samuwar

Lokacin da na iyakacin duniya gaban fara ta ci gaba da kalaman shigar azzakari cikin farji enhancer juyi a wurare masu zafi yanayi iska taro samar iyakacin duniya ciki. Idan akai la'akari da gabatarwa tsarin a gabashin shugabanci, dumi cyclone, wanda iska ne kokarin hambarar da sanyi ne daban-daban fiye da kishiyar, wanda ya bi shi, kuma ya kori karkashin rana warmed talakawa. A sakamakon wannan yunkuri ne m abubuwa ta wãyi matsa lamba akan rage a surface, da cibiyar da ke kewaye da isobar cewa iska cikin ƙaho crosswise.

A sakamakon haka, iska gudana zuwa ga core na ciki da kuma zuwa gaba Bazuwar na dare. Kamar yadda wannan tsari sanyi gaban fuskanci dumi, wadda take kaiwa zuwa occlusion lokaci. Duk da iska tare da low zafin jiki da kuma a saman da cyclonic motsi da hali, nuna isobar da iska shugabanci a kan surface akwai daya gaban bambanci a matsayin rarraban line tsakanin shigowa qarqashinsu, dake a cikin raya yankin na ciki. Wannan take kaiwa ga canji a gaban. Dangane da yanayin da matakai kayyade wasan metamorphosis occlusion ne ko dai sanyi ko dumi. A wannan dogara da m buɗi na cyclone a kan ƙasar.

lokaci Don

A lokacin da wanzuwar irin wannan yanayin tsarin ya dogara kan yadda dogon da m makamashi yana zuwa da za a sāke cikin sanadin motsi makamashi. Iyakacin duniya ciki hallaka lokacin da tsakanin iska yadudduka dake a cikin unguwa, da bambanci vuya low kuma high matsa lamba. Its m weakening faruwa a lokacin da gudun hijira na kankara surface ko ƙasar kimantawa. Ganin dangantaka ta kai tsaye tare da Yunƙurin na iska da kuma tsananin iska, shi zai iya muhimmanci da tasiri da yanayin.

Gurbin kan yanayin

Saboda dumi iska yakan hankali fronts, muddin ya kai gare shi da kwanciyar hankali, da samuwar mai lebur girgije siffofin. Idan sama cirrus girgije bayyana, sa'an nan da dumi gaban gefe. Kamar yadda ya kusanta, da girgije ne a kasa da kuma mafi m. Sau da yawa kwanciya portends lafiya ruwan sama ƙarshe jũya a cikin wani nauyi wãbilin hadari ya sãmu. Kuma ga abincin dare riga mu iya sa ran m sama, a cumulus saitin.

A zuwa na wani sanyi gaban yanayin ba zato ba tsammani ya canjãwa. A cikin sammai akwai cumulonimbus girgije, kamar hasumiyar, kawo, kamar yadda mai mulkin, nauyi shawa da saukar aradu. Nan da nan, da iska shugabanci da aka canza zuwa arewa ko arewa maso yammacin. A hadari halin da ake ciki tasowa ba zato ba tsammani, kuma ga wani ajali na.

Mene ne bambanci?

Mene ne bambanci frontal ciki a kudancin yammancin duniya da kanta kamar a Arewa? Kusan wani abu, ko da yake akwai wani muhimmin rarraban line. A farkon yanayin, da iska a kan dumi gaban jũya arewa zuwa arewa maso yammacin, kuma a cikin sanyi - daga yamma zuwa kudu maso yammacin, a karo na biyu - da motsi ne guda a matsayin cewa daga cikin kibiyoyi a kan agogo. Amma da alama cewa kowane iyakacin duniya ciki - wani sabon abu da mutum, wato, akwai wani idealized model, wanda zai iya bayyana shi.

yiwuwar kintace

Don hasashen yanayin a cikin frontal depressions iya zama a kan yanayin da cewa wani babban yanki ta rufe synoptic lura. Alal misali, don Turai nahiyar binciken yankin kamata fadada zuwa yamma, ciki har da m Atlantic yankin. Saboda yawanci irin wannan halitta tsarin da gudun 1000 km kowace rana. Idan lura suna da za'ayi a cikin sama yadudduka na cikin yanayi, shi zai ƙwarai sauƙaƙe aiki a kan zama na gaba a kansu, inda a can ne a cyclone.

Quite na kowa a lokacin da gaban ciki coalesce cikin girma iyali, shafe samuwar wani sakandare motsi a kusa da babban kwarara. Mafi na kowa akwai waɗanda ke bayyana a gefen da sanyi iska. Kowane gaba wakilin wannan wata alama ce da iyali shi ne hanya mafi kusanta zuwa ekweita fiye da ta gada.