आयन मंडल
ayan mandal (aangrezi: Inosphere) ek vayumandaliy peti hai, jo bhootal se lagabhag 50 ki.mi. se lekar 500 ki.mi. ki ooanchaee tak vistrit hai.
- is mandal mean vidyut evan chubankiy ghatanayean ghatit hoti haian aur yahaan se rediyo tarange paravartit ho jati haian.
- uttar dhruviy prakash[1] aur dakshin dhruviy prakash[2] isi mandal mean parilakshit hote haian.
- ayan mandal mean ilektr aaun tatha ayan kan adhik sankhya mean paye jate haian.
ayanamandal prithvi se lagabhag 80 kilomitar ke bad ka sanpoorn vayumandal ayanamandal kahalata hai. ayatan mean ayanamandal apani nichali hava se kee guna adhik hai lekin is vishal kshetr ki hava ki kul matra vayumandal ki hava ki matra ke 200vean bhag se bhi kam hai. ayanamandal ki hava ayanit hoti hai aur usamean ayanikaran ke sath sath ayanikaran ki viparit kriya bhi nirantar hoti rahati haian. ayanamandal ko char paratoan mean baanta gaya hai. prithvi ke lagabhag 55 kilomitar ke bad se di parat praranbh hoti hai, jaisa chitr mean dikhaya gaya hai. di parat ke bad ee-parat hai jo adhik ayanoan se yukt hai. yah ayanamandal ki sabase tikaoo parat hai aur isaki prithvi se ooanchaee lagabhag 145 kilomitar hai. ise kenali hevisaid parat bhi kahate haian. tisari eph-van parat haian. yah prithvi se lagabhag 200 kilomitar ki ooanchaee par haian. garamiyoan ki ratoan tatha ja doan mean yah apani oopar ki paratoan mean sama jati hai. aant mean 240 se 320 kilomitar ke madhyati asthi eph-too parat haian. thumb|250px|left ayanamandal ki upayogita rediyo tarangoan (vidyuchchuanbakiy tarangoan) ke prasaran mean sabase adhik hai. soory ki parabaigani kiranoan se tatha any adhik oorjavali kiranoan aur kanikaoan se ayanamandal ki gaisean ayanit ho jati haian. ee-parat athava kenali hevisaid parat se, jo adhik ayanoan se yukt hai, vidyuchchuanbakiy tarangean paravartit ho jati haian. kisi sthan se prasarit vidyuchchubankiy tarangoan ka kuchh bhag akash ki or chalata hai. aisi tarangean ayanamandal se paravartit hokar prithvi ke vibhinn sthanoan par pahuanchati haian. laghu tarangoan (shart vevs) ko hajaroan kilomitar tak ayanamandal ke madhyam se hi pahuanchaya jata hai.
ayanamandal mean ayanikaran ki matra, paratoan ki ooanchaee tatha motaee, unamean avasthit ayatoan tatha svatantr ilektranoan ki sankhya, ye sab ghatate badhate haian.[3]
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