Uninzi lwamandla afikelela kumhlaba ovela elangeni, ngohlobo lwe imitha yombane. Kuxhomekeka kubude bamaza, ayaqina okanye angaphantsi. Ke, umzekelo, imitha ye-ultraviolet, imfutshane kakhulu (ii-nanometer ezingama-360), ithwala amandla amaninzi, ngokungafaniyo namaza erediyo amaza akhe made kakhulu.
Qhubeka ufunda ukuze wazi ngakumbi.
Ayisiyiyo yonke imitha efikelela elangeni efunxwa yiplanethi ngendlela efanayo. Inyaniso, yi-26% kuphela efunxwe ngokuthe ngqongexesha iatmosfera izakufunxa ilingana ne-16%. Ikwabonakalisiwe, umzekelo, ngezinto eziseplanethi (10%) okanye ngamafu (24%).
Ukongeza, imitha yelanga ayifiki kwikona nganye ngokufanayo. Ngapha koko, imitha iyangena ngakumbi kwi-ikhweyitha, ngelixa ezipalini zibuthathaka kakhulu, into echaphazela ngokuthe ngqo imeko yendawo. Kwimephu ephezulu ungabona ngokweenkcukacha amandla elanga afunyanwa kwikona nganye yeplanethi yethu. Kwiindawo ezininzi, amandla aphezulu ahlala enxulumene nemvula ephantsi, njengakwintlango yeSahara; kodwa kwabanye ungabona udubulo olukhulu lobomi, njengakwiAmazon.
Imitha yelanga yombane isasazwa kuluhlu olubanzi lokuhamba, oku:
- Imitha yelangaImele i-8-9% yamandla ewonke.
- Uluhlu olubonakalayo: imele i-46-47% yamandla afunyenweyo.
- Kufutshane namanqanaba e-infrared: imele ama-45%.
Umoya ojikeleze umhlaba, njengoko besitshilo, unendima ebaluleke kakhulu kubunzulu nokwakhiwa kwemitha. Kufuneka siyazi loo nto kuxhomekeke ekuhambeni komhlaba, kunye nakumahluko wexeshana, ubungakanani bunokwahluka. Umzekelo, i-hemisphere esemantla ngenyanga kaJuni isondela elangeni, ngelixa i-hemisphere esemazantsi isiya kude. Enkosi kwezi ntshukumo sinokubala xa kuqala amaxesha, into engathandabuzekiyo eya kusinceda sicwangcise iiholide zethu.