ooainchaai
ooainchaai (angreji: Elavation) vah maap hai jo kisi dharaataleeya bindu ki (sthaan ki) kisi sandarbh tal se oordhvaadhar doori ya ooainchaai bataati hai; jismein sandarbh tal bahudha samudra tal athva jyoid (Geoid) hota hai.[1]
jyoid ek tarah ki kaalpanik aakruti hai jo samudri jal ki ausat satah se nirmit maani jaati hai aur saath hi mahaadveepeeya bhaagon mein bhi is satah ke vistaar ko prakalpit kar liya jaata hai.[2]
chooainki alag-alag jagahon par gurutvaakarshan bal mein bhooparpati ki chattaanon ki saghanata mein bhinnata ke kaaran kuchh-na-kuchh antar paaya jaata hai, pratyek jagah par is jyoidal satah ya samudra tal ki pruthvi ke kendra se doori ek saamaan naheen hoti.[3] isi liye pratyek desh apne sarvekshanon ke liye kisi ek nishchit jagah ke samudra tat par sthit bindu ke samudra tal ko sandarbh tal maan kar oonchaaiyon ki ganana karta hai. Bhaarat mein ooainchaaiyaaain Madras (ab chennai) ke samudra tat se maapi jaateen rahi hain aur yaheen se great aark sarve aarambh hua tha.[4] ab Bhaarat ki ooainchaaiyaaain evarest-1930 sandarbh tal se maapi jaati hain jiska aadhaar bindu madhya pradesh mein kalyaanapur ke paas hai.[5]
anukram
uchchaavach
tungamitik adhyayan
inhein bhi dekhein
sandarbh
- ↑ Elevation meeaning, 2, Oxford dikshanari, online
- ↑ What is the geoid?, NOVAA
- ↑ The Earth's Geoid
- ↑ THE TRIGONOMETRICAL SURVEY (With a Sketch-map.) By F. C. DANVERS, A. I. C.E.
- ↑ B.K. Srivastava, Error Estimates for WGS-84 and Everest (India-1956) Transformation, gisdevelopment.net
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yeh lekh ek aadhaar hai. aap ise badhaakar vikipeediya ki sahaayata kar sakte hain. |