radiation a kan ƙasa ta surface

Wataƙila mun taɓa yin mamakin wane irin radiation ya kai duniya, game da wannan an san cewa mahimmin shigar da hasken akan duniyar tamu shine radiation da Rana ta fitar, a ciki wanda ake ci gaba da aiwatar da jujjuyawar sinadarin hydrogen zuwa helium, wanda ke fitar da dumbin zafi. Wannan zafin yana tashi daga cikin cikin Rana zuwa saman ta kuma daga ita zuwa Duniya.

Ana watsa wannan kuzarin ne zuwa doron kasa ta hanyar yanayin taguwar lantarki, wanda yake da tsayi daban-daban. Saitin igiyoyin igiyar igiyar ruwa daban-daban da jiki ke fitarwa ana kiran sa bakan na wannan jikin kuma yana da alaƙar kusanci da yanayin zafin nasa, ta yadda hanyar da ta fi shi girma, gajeriyar tsayin igiyar da yake fitarwa.

Saitin nisan zangon da Rana ya fitar ana kiransa bakan rana kuma a ciki, ma'ana, ƙananan raƙuman ruwa sun fi yawa, kamar yadda ya dace da yanayin zafinsa mai tsananin gaske, wanda aka kimanta game da shi 6.000 K (5.727 ° C).

A tsakanin bakan rana, ana iya rarrabe nau'ikan fitilu uku na asali:

zuwa ga hasken ultraviolet, tare da nisan tsakanin micrometers 0, 1 da 0,4, kuma wannan jigilar tare da X-rays da gamma rays 9% na yawan kuzarin da Rana ke fitarwa.

b) Haskoki bayyane ko haske, tare da tsayin daka mafi girma - tsakanin micrometers 0,4 da 0,78 - kuma wanda ke ɗaukar kusan 41% na jimlar ƙarfin rana.

c) infrared haskoki, tare da ƙarfin igiyar galibi tsakanin micron 0,78 da 3 (ƙungiyar da ta dace da infrared na kusa), kuma wanda ke ɗaukar sauran 50% na ƙarfin hasken rana.

Duk waɗannan radiations suna fitowa daga Rana kuma sun isa iyakar sama da yanayin farko. Yanzu wannan ma'anar ƙimar yana ɓoye rarraba sosai m na jujjuyawa tsakanin latitude daban-daban, rashin daidaito wanda ke amsawa ga yadda tsarin yanayi-duniya ke tsinkayar hasken rana.