Tasirin kusurwar rana akan yanayi

Adadin wutar lantarki da aka karɓa a kowane wuri a Duniya yana da tasiri kai tsaye na kusurwa Rana akan yanayi, kamar yadda kusurwar da Hasken rana ya buge Duniya ya bambanta da wuri, lokacin rana, da kuma lokacin saboda yanayin duniya a kusa da Rana da Juyawa na Duniya a kusa da axis dinta. Canjin yanayi a cikin kusurwar hasken rana, wanda ya haifar da karkatawar axis na Duniya, shine ainihin hanyar da ke haifar da yanayin zafi a lokacin rani fiye da hunturu. Canji a Tsawon rana wani abu ne (ko da yake karami).  

 Geometry na kusurwar rana 
Hoto na 1 ya gabatar da yanayin lokacin da hasken rana ya haskaka a Duniya a ƙananan kusurwa (Sun kusa da sararin samaniya), makamashi na hasken rana yana yadawa a kan yanki mafi girma, sabili da haka yana da rauni fiye da idan Sun ya fi girma kuma makamashi yana mai da hankali kan karamin yanki.

Hoto na 2 yana nuna hasken rana mil daya (1.6  mai faɗuwa a ƙasa daga kai tsaye sama, kuma wani yana buga ƙasa a kusurwar 30 °. Trigonometry ya gaya mana cewa sine na kusurwar 30 ° shine 1/2, yayin da sine na kusurwa 90 ° shine 1. Sabili da haka, hasken rana da ke buga ƙasa a kusurwar 30 ° yana yada adadin haske iri ɗaya a kan sau biyu fiye da yanki (idan muka yi tunanin Rana tana haskakawa daga kudu da tsakar rana, faɗin arewa maso kudu ya ninka sau biyu; faɗin gabas zuwa yamma ba haka ba). Sakamakon haka, adadin hasken da ke faɗuwa a kowane murabba'in mil shine rabin kawai.
Hoto na 3 ya nuna kusurwar hasken rana da ke mamaye Duniya a Arewa da Kudancin Hemispheres lokacin da aka karkatar da arewacin duniya daga Rana, lokacin da hunturu ne a arewa da kuma lokacin rani a kudu.

 Rashin aiki, yanayi, da yanayi 
Bambancin kusurwar rana yana haifar da bambancin yanayin zafi tsakanin ƙananan latitudes da mafi girma, kuma tsakanin hunturu da rani a wannan latitude (ko da yake "winter" da "summer" sun fi rikitarwa a cikin wurare masu zafi. 

A madaidaiciyar latitude, girman bambancin yanayi a cikin kusurwar rana (kuma ta haka ne bambancin zafin jiki na yanayi) daidai yake da ninki biyu na duniya. Misali, tare da karkatacciyar kusurwa ita ce 23 °, kuma a latitude na 45 °, to, kusurwar rana ta bazara ita ce 68 ° (ba da zunubi (68 °) = 93% insolation a farfajiya), yayin da mafi ƙarancin kusurwar hasken rana ta hunturu ita ce 22 ° (bawar zunubi (22 °) = 37% insolation at the surface). Don haka, mafi girma axial tilt, mafi karfi da seasons' bambance-bambance a wani da aka ba da latitude.

 Manazarta