Daga cikin guguwa masu yawa da suka addabi yankinmu a cikin recentan shekarun nan muna da hadari Fabien. Shine karo na shida mai suna hadari na kakar 2019-2020. Ya fara ne da gargaɗin lemu saboda guguwar iska mai ƙarfi wacce ta haifar da abubuwa da yawa na bakin teku a cikin Galicia. Duk wannan ya faru ne a ranar 18 ga Disamba da 22:30 na dare. Daga baya anyi jan aiki kuma guguwar ta bazu zuwa Tekun Cantabrian.
A cikin wannan labarin zamu gaya muku duk abin da kuke buƙatar sani game da guguwar Fabien, yadda ta samo asali da kuma yadda halayenta suke.
Samuwar guguwar Fabien
Wucewar wannan guguwar ta yi lanƙwasa a cikin duka Bay of Biscay zuwa hanyar Faransa, kasancewarta cikin sauri. Zamu iya cewa A farkon awowi na 22, duk lahani nasa akan Spain ya kusan daina. Wannan mahaukaciyar guguwar an kirkiro ta ne a cikin ƙaƙƙarfar yanayin zafin ruwa wanda ya ratsa duka Tekun Atlantika. Ana iya cewa an sami kogin sararin samaniya wanda aka ɗora da hazo, wannan yanki mai ɗimbin ɗumi ya haifar da guguwar Elsa har zuwa fewan kwanakin da suka gabata.
Gano guguwar Fabien ya fara ne a ranar 19 da ƙarfe 18:996 na yamma inda za'a iya gano ƙaramin matsin lamba a kudu da Newfoundland tare da ɗan ƙasa da 24 hPa a tsakiya. Bayan awanni 18, da ƙarfe 20:XNUMX na yamma a ranar XNUMX, tsakiyar guguwar ta riga ta kasance a tsakiyar Arewacin Atlantika kuma tana da zurfin tare da ƙimomin 970 hPa. Kamar yadda ake tsammani, wannan saukarwar cikin matsin zai haifar da iska mai ƙarfi mai ƙarfi tare da hazo.
Ta hanyar samun wannan bambancin matsi, a fashewar cyclogenesis. Daga wannan lokacin ne yake saurin tafiya zuwa cikin Turai kuma ya gangara zuwa kogin da ke yanayi. Cibiyar ta kasance koyaushe kusa da latitude na 45-50ºN. Tuni har zuwa ranar 22, guguwar Fabien ta narke gaba ɗaya a cikin Netherlands da Denmark.
Phenomena da gargaɗin guguwar Fabien
A yammacin ranar 21 ga wata an ba da sanarwar jan layi (tare da ƙofar 140 km / h) a arewacin Coruña da Lugo da kuma kudu maso yamma na tsaunukan Cantabrian na Asturias, kuma an ba da gargaɗin lemu mai nisa a sauran Galicia, Asturias, kusan duka Castilla y León. Tsarin tsakiya da tsaunukan Castilla-La Mancha da Gabashin Andalusia (ƙimomi tsakanin 90 da 120 km / h, bisa ga al'ummomin masu cin gashin kansu), tsakanin ranakun 21 da yamma da 22 a farkon rabin yini.
Game da al'amuran bakin teku, Tekun Cantabrian da gabar Tekun Atlantika ta Galicia sun ba da ja gargaɗi saboda iska daga yamma zuwa kudu maso yamma na karfi 8-9, kuma a cikin gida 10, kuma matakin teku ya tashi da mita 8-9 a tsayi. Yawancin sauran yankuna na bakin teku na tsibirin da tsibirin Balearic sun ba da faɗakarwar lemu don gargaɗin bakin teku. Ruwan sama ba shine mafi mahimmanci na wannan lamarin ba, amma iskoki. Duk da wannan, an bayar da wasu matakan da ruwan lemu saboda ruwan sama da aka tara cikin awanni 12 sama da 80 mm, musamman a yankunan tsaunuka na lardin Albacete.
Babban tasirin da yayi a Spain
Da zarar mun san yadda aka kirkira shi da kuma irin halayensa, zamu ga tasirin da hakan ya haifar a gabar teku. Mafi tasirin tasirin guguwar ya faru ne saboda tsananin igiyar ruwa da ta shafi duka yankin Galicia da Cantabrian. Galibi raƙuman ruwa sun haifar da iska mai ƙarfi, gami da yawancinsu guguwa. Waɗannan gusts na iska sun shafi babban ɓangare na sashin teku, musamman zuwa arewa maso yamma da kuma tsibirin Balearic.
Ba kamar abin da ya faru da guguwar da ta gabata ba Elsa, babu wasu asarar rai da za a iya danganta su da wucewar guguwar Fabien. Koyaya, lalacewar kayan abu yayi yawa a cikin yankunan da abin ya fi shafa. Kodayake ruwan sama ya kasance cikakke, rikodin karshe na wannan guguwar da za'a samu shine sama da 60mm a cikin awanni 24 a cikin manyan abubuwan hakar AEMET. An sami rikodin rikodi a cikin Grazalema inda aka tattara 145.2 mm a ranar 21.
La'akari da cewa daga 16 ga 22 ga XNUMX ga Disamba akwai iska mai ƙarfi, mai ɗumi ƙwarai da kuma kai tsaye na zonal da ke gudana a kan teku a cikin mako. Tsakanin su, guguwar Daniel, Elsa da Fabián sun faru a jere, kuma hazo da aka tara ya yi kyau.
Karatun hadari
Abubuwan da ke tattare da bam na yanayi ko kuma cyclogenesis mai fashewa ba ƙirƙirar kafofin watsa labarai ba ne. Sharuɗɗa ne waɗanda aka haifa a cikin ƙungiyar masana kimiyya kuma suna da tarihi sosai. Masana ilimin yanayi sun fara ishara zuwa ga ire-iren wadannan guguwa tare da siffofi kamar su abubuwan fashewa ko sunaye, suna kiran su bam. Tunanin ya fito ne daga makarantar Bergen da ke Norway, inda iyayen da suka kafa ilimin kimiyyar yanayi suka koyar, kuma ya zama sananne lokacin da masana yanayi biyu daga Cibiyar Fasaha ta Massachusetts suka ambace shi a wata kasida a 1980. - don ayyana guguwar da tayi asara sama da miliyon 24 na matsi a cikin kwana ɗaya kawai, kamar Fabien, wanda Hukumar Kula da Yanayi ta Jihar ta nada.
Tare da canjin yanayi, ana tunanin cewa faɗakarwar faɗakarwar jan hankali zata sami ƙasa ko ƙasa da kowace shekara 3 gwargwadon canjin yanayi wanda zamuyi la'akari dashi lokacin karatun hadari. Daya daga cikin abubuwan da kare mu a cikin yankinmu shine antiyclone na Azores. Yana da babban anticyclone wanda ke dakatar da duk taimakon hadari. A zahiri, shi ya jawo kawo karshen wannan guguwar daga ranar 22.
Ina fatan cewa tare da wannan bayanin zaku iya koyo game da guguwar Fabien, asalinta da halayenta.