La squall bar Yakaputika uye yakarova peninsula muna Zvita 2021. Yakanga iri squall ine simba zvakakonzera kukuvadzwa kukuru panguva yekupedzisira yezambuko raZvita. Tichifunga nezvekusatenda kuti sei dutu iri rakaitika uye kuti sei rakanga rakanyanyisa, tichatsvaga mhinduro.
Muchinyorwa chino tichakuudza kuti sei dutu reBarra rakaitika, chii chaive chimiro chayo uye chikonzero nei chakanyanya.
Squall Bar
Dutu rinoputika reBarra, iro rakakonzera kuparara kwechando, rakakonzera kukanganisa chaiko mune dzimwe nzvimbo dzepeninsula. Muchokwadi, iyo DGT yaifanira kukumbira vatyairi kuti vaende kumba nekuti zvaigona kuitika kuti kuchamhembe kwenyika kwaizove nemazaya echando. National Meteorological Service (AEMET) yakayambira nezvemvura zhinji, mhepo ine simba, kutonhora uye kunaya kwechando chakanyanya kuchamhembe, uye Sinou yaitarisirwa kudonha kusvika 500 m panguva yekupedzisira yekupera kwevhiki kwaDecember.
Sekureva kwemutauriri weAEMET, Rubén del Campo, kumberi kunotonhora kwakatanga kufamba kuyambuka peninsula kubva kuchamhembe kwakadziva kumadokero kuenda kumaodzanyemba kwakadziva kumabvazuva, kwakabatana nedutu rakadzika rakadaidzwa kuti Barra, iro rakanga richiita kuputika kwecyclonic process nepakati payo.
MuSpain, zvakadaro, kukanganisa kwacho kwakanga kusiri kukuvadza, sezvo vainyanya kukonzera kupfuura kwemiganhu uye kuumba madutu egungwa ane simba muBay of Biscay, nemasaisai aisvika kureba kwemamita matanhatu kusvika masere.
Dutu reBarra rakange rine mvura zhinji uye yaigara ichinaya muGalicia, Bay of Biscay nePyrenees, iyo ichasvikawo kuIberian neCentral system nedzimwe nzvimbo dzeNorthwest, nepo kumaodzanyemba denga rine makore zvishoma rakakunda rechitatu uye Mediterranean. Chifukidziro chechando chaive chakakwirira pakutanga, ndokudonha kusvika kumamita 1.000 kusvika ku1.200 zuva rese, uye yakatodzika kusvika kumamita angangoita 700 muCantabrian Mountains mumaawa mashoma apfuura.
Zvinhu zveBarra squall
Maererano naDel Campo, chimwe chinhu chinofanira kufungwa nemhepo, iyo yakaunza mhepo yakasimba pamhenderekedzo yegungwa uye mumakomo, kunyanya muhafu yekuchamhembe. Mhepo inotonhora yekuchamhembe kwakadziva kumadokero, iyo yakakonzera kudonha kwakanyanya kwekushisa, kunyanya kuchamhembe kwakanyanyisa, iyo yakaramba ichinaya zvakanyanya, asi pakanga painewo huwandu hukuru hwePyrenees, Makomo eCantabrian uye kudonha kwechando pakati nekupoterera Iberian Peninsula.
Mupfungwa iyi, makomo aya aigona kugamuchira anopfuura 10 kusvika 15 masendimita echando mumaawa 24 chete, uye kudonha kwechando kwakadererawo, anenge 500 kusvika 700 metres kure kuchamhembe uye 600 kusvika 800 metres kune mamwe kuchamhembe nekuchamhembe.. Pakati penzvimbo yepeninsula zvakare maive nechando, kunyangwe zvisina kusimba, munzvimbo dziri dzoga dzebani uye machakwi ari pakati pematunhu.
Nokuda kwechikonzero ichi, del Campo yakakumbira vagari vose vanobva kuBridge kuti vave "vakangwarira zvikuru" nekuda kwekufamba pakati pehafu yekuchamhembe nepakati.
Chitatu neChina chedutu
Kana ichienzaniswa neChitatu, mvura yakanga isina kunaya munzvimbo dzose dzakasara dzemapani maviri uye nechepakati pemakomo peninsula. Kwakanga kunewo mvura muBalearic Islands. Pazuva rino taifanira kubhadhara mhepo zvakare, nemhepo ine simba pane dzimwe nguva inopfuura 80 km / h muGungwa reCantabrian, peninsula yekumabvazuva neBalearic Islands. Madutu mugungwa akaramba achiita basa rinokosha. nemafungu anosvika 8 metres muBay of Biscay uye 4 metres muMediterranean.
Galicia, nharaunda dzeCantabrian nePyrenees vacharamba vachiwana mvura inonaya nemusi weChina neChishanu, asi tembiricha inodziya ichaona mazaya echando achiwedzera zvakanyanya, kazhinji achipfuura 1.500 metres. Nokudaro, kwakanga kune kunyunguduka kwechando mumazuva iwayo, kuwedzera kukuru kwekuyerera kwenzizi munzvimbo idzi, uye ivhu munzvimbo idzi dzakanyoroveswawo nekuda kwemvura zhinji uye sinou kwemavhiki maviri.
Muchokwadi, mumataundi eAsturias, Cantabria, iyo Basque Nyika uye kuchamhembe kweNavarra, anopfuura mazana matatu l/m² akaunganidzwa mumazuva gumi apfuura, ichiratidza nzvimbo yeUrkiola muVizcaya, iyo yakaunganidza 10 L/m378 pazuva. Uku kunaya kwemvura kubva kuFar North kunowanzo kudarika katatu kwakajairika panguva ino yemazuva gumi apfuura.
Mvura yemusi weChina neChishanu yakapararira isina simba kuchamhembe uye pakati uye mune dzimwe nzvimbo dzePenibético system, nepo muMediterranean maiva nemhepo inonaya muBalearic Islands. Nemusi weChina tembiricha dzakakwira munzvimbo idzi, nemamiriro emwaka wakanyorovera, paine chando chidiki uye tembiricha masikati tembiricha iri pamusoro pe20ºC pamhenderekedzo yeMediterranean uye padyo nerwizi rweGuadalquivir.
Sei dutu reBarra rakaitika?
Dutu reBarra rakaumbwa nekuda kwekudzika kwemaitiro ekuburitsa madutu anoputika. Kunyanya, madutu akaita seBarra anowedzera nekukurumidza kana paine kudyidzana kunoshanda pakati peaya maviri anotangira:
- Inonyanya kushanda yepamusoro-soro precursors inogadzirwa neakanyatsotsanangurwa polar groove jets.
- Surface depression kana low pressure precursor.
Nekuda kwechiitiko ichi, chinoitika ndechekuti dutu reBarra rakasangana nazvo iyo "anomalous intensification", ine kumhanya padyo ne50 hPa mumaawa makumi maviri nemana. Izvi zvinozivikanwa se "bhomba remamiriro ekunze," mhedzisiro yekuora mwoyo kwakanyanya kana dutu munguva pfupi pfupi.
Nekuda kwekushanduka kwemamiriro ekunze, tiri kuona maitiro ekuwedzera mafambiro uye kusimba kwemadutu akanyanya. Nemamwe mashoko, mumwaka wechirimo, apo panowanzova nekusagadzikana kwemhepo yakawanda, madutu aya anowanzoitika. Mhepo dzemhepo dziri kufamba nekushandurwa kwezvidzvanyiriri zvinowedzera nekudonha zvakanyanya nekuda kwekushandurwa kweavhareji yetembiricha yepasi rose.
Nekunyatso shandura iyo yese mamiriro epasi rose avhareji tembiricha nekuda kwekugadzirwa kwemagreenhouse magasi mukati kuwandisa kunokonzera shanduko mumagadzirirwo emadutu.
Ndinovimba kuti neruzivo urwu unogona kudzidza zvakawanda nezvedutu reBarra uye maitiro ayo.