Tiri kurarama munyika umo, kunyangwe zvingaite senge zvisingadaviriki, zvinoitika pano zvinogona kuve nemhedzisiro pane imwe nzvimbo yepasi. Kana iri mamiriro ekunze, isu takatotaura mune a chinyorwa kuti huwandu hwemvura inogadzirwa nemasango emvura inodzora tembiricha kutenderera pasirese.
Zvino, chidzidzo chakaburitswa mumagazini reNatural Climate Change, chaona kuti, nekuenderera mberi nekuburitsa carbon dioxide mudenga, mhepo yekuNorth America inogona kupera simba. Kana vakadaro, mhedzisiro yacho ingave inoshamisa.
Chii chinonzi monsoon?
Kuti tinzwisise kukomba kwenyaya iyi, ngatitsanangurei kuti mamonons chii. Monsoon imhepo yemwaka iyo inogadzirwa nekushanduka kwebhanhire remvura inopisa, iyo inosimuka kubva kuchamhembe kweTropic yeCancer kuenda kumaodzanyemba kweTropic yeKapricorn mukati megore. Iri bhandi rinotakura kunaya kumaodzanyemba kwenyika kubva muna Gumiguru kusvika Kurume, uye kuchamhembe hemisphere kubva munaKubvumbi kusvika Gunyana.
Ipo mune chimwe chikamu inonaya yakawanda, ichitungamira kumafashama akakomba, mune imwe, zvinopesana, mwaka wakaoma unowanikwa.
Inogadzirwa sei?
Zvinokonzerwa nekuti ivhu rinotonhora uye rinopisa nekukurumidza kupfuura mvura. Kune monsoon yezhizha, uye monsoon yematsutso. Yekutanga inoumbwa nekuda kwekuti pasi rinosvika pakushisa kwakakwirira kupfuura kwemakungwa, zvekuti mweya unokwira wakanangana nemuchadenga zvichikonzera dutu kana nzvimbo yekumanikidza kwakadzika. Mhepo inovhuvhuta ichibva kunzvimbo dzesimba rekumanikidza kuenda kunzvimbo dzesimba rekuyedza kuyedza kuyananisa kumanikidza kwese ari maviri, nekudaro ichigadzira mhepo ine simba inovhuvhuta ichibva mugungwa. Pakupedzisira, mvura inoitika nekuda kwekukwirira uye kutonhorera kwemhepo mumakomo.
Munguva yekudonha uye yechando ivhu rinotonhora nekukurumidza, asi gungwa rinotora nguva yakareba kuti riite, saka tembiricha inoramba yakakwira. Naizvozvo, mhepo inomuka ichikonzera nzvimbo yekumanikidza kwakadzika mugungwa, uye mhepo ichivhuvhuta ichibva pasi ichienda munyanza. Sezvo mutsauko wetembiricha pakati peimwe neumwe uri mushoma pane wezhizha, mhepo inovhuvhuta kubva kuanticyclone kuenda kune dutu haina kuramba yakadaro.
Nei mhepo yekuchamhembe kweAmerica inogona kushomeka?
Monsoons anonetsekana zvakanyanya nemagreenhouse gases, sekureva kwevanyori vesaenzi ve kudzidza Salvatore Pascale, William R. Boos nechikwata chavo. Vachishandisa muenzaniso wepasi rose wemamiriro ekunze, ivo vakazviona izvo Kana kabhoni dhayokisaidhi ikapetwa ruviri, mhepo yekuNorth America yaizopera simba, kunyanya kumaodzanyemba kwakadziva kumadokero kweUnited States. Sei?
Kudzikama kwemuchadenga uye, nekudaro, convection isina kusimba inokonzerwa nekupisa kwakafanana kwegungwa pamusoro zvinoita kunge chiri chikonzero chekudzikiswa kwemvura.
Kuti, matanho ekugadzirisa achafanirwa kutorwa uye, pamusoro pazvose, shandisa zvirinani zviwanikwa zvemvura.