
eckert II projection

eckert II projection oru thulya-eriya seudocylindrical mapp projakshanaanu. bhoomadhyarekhayude vashath (bhoomadhyarekha thirashcheena akshamaayi kaanichirikkunna) rekhaamshathinteyum akshaamsharekhakaludeyum shringalayil nerrekhakal maathrame adangiyittulloo, koodaathe baahya athirthikku neelamulla shadbhujathinte savisheshamaaya aakruthiyundu. 1906 ll maiks eckert ithine moonnu jody seudocylindrical projakshanukalude oru parambarayaayi aadyamaayi visheshippichu. oro jodikkullilum, meridiansinu ore aakruthiyundu, ottasamkhyayulla projection thulya akalamulla samaantharangalaanu, athesamayam erattasamkhyayulla projection vistheernnam samrakshikkunnathinu samanthara akalamundu. ekert II-lekkulla jody ekert i projakshanaanu.
vivaranam.
neraaya madhyarekhaykkum neraaya madhya madhyarekhaykkum chuttum eee prakshepanam samamithiyaan. pradeshangal samrakshikkunnathinaayi samanathakal akalatthil vyathyaasappedunnu. oru seudocylindric projection enna nilayil, eathenkilum samaantharamaayi meridiyansinte akalam sthiramaanu. dhruvangale rekhakalaayi prathinidheekarikkunnu, oro pakuthiyum madhyarekhaykku thulyamaanu. 55°10′ vadakkum thekkum akshamshangalil maathrame prakshepanatthinu sariyaaya skeyil ulloo.
projakshante "x", "y" kordinettukal ingane kanakkakkaam
λ" ennathu rekhaamshavum "λ" 0 ennathu kendra meridian "φ" ennathu akshaamshavum "r" ennathu prakshepanam cheyyenda globinte vyaasavumaan. ivide, "y" ennathu "φ" enna adayaalam anumaanikkunnu.

