Ib degree ntawm latitude sib npaug li cas?
Ib degree ntawm latitude sib npaug li cas?

Video: Ib degree ntawm latitude sib npaug li cas?

Video: Ib degree ntawm latitude sib npaug li cas?
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Anonim

Txhua degree ntawm latitude yog kwv yees li 69mi ua (111 km) sib nrug. Qhov ntau yam txawv (vim lub ntiaj teb me ntsis ellipsoid duab) los ntawm 68.703 mais (110.567 km) ntawm kab zauv mus rau 69.407 (111.699 km) ntawm tus ncej. Qhov no yooj yim vim hais tias txhua feeb (1/60th ntawm ib degree) yog kwv yees li ib mais [nautical] mais.

Ntawm no, qhov degree ntawm latitude yog dab tsi?

Latitude yog qhov ntsuas ntawm qhov deb ntawm sab qaum teb lossis sab qab teb ntawm Equator. Txhua qhov sib npaug ntsuas ib qho degree sab qaum teb lossis sab qab teb ntawm Equator, nrog 90 qib sab qaum teb ntawm Equator thiab 90 qib sab qab teb ntawm Equator. Cov latitude ntawm North Ncej yog 90 qib N, thiab cov latitude ntawm South Pole yog 90 qib S.

Ib yam li ntawd, ntev npaum li cas ib feeb ntawm latitude? Ib feeb ntawm latitude sib npaug ib nautical mais thiab degrees ntawm latitude yog 60 nm sib nrug. Qhov kev ncua deb ntawm degrees ntawm longitude tsis tas mus li vim hais tias lawv converge ntawm tus ncej.

Ib yam li ntawd, pes tsawg meters nyob rau hauv ib tug degree ntawm latitude?

Niaj hnub no peb paub tias ib feeb ntawm qhov nruab nrab degree ntawm latitude yog 1,852 meters.

Qhov degree ntawm longitude loj npaum li cas?

A degree ntawm longitude yog qhov dav tshaj plaws ntawm txoj kab nruab nrab nrog qhov kev ncua deb ntawm 69.172 mais (111.321 mais). Qhov kev ncua deb maj mam txo mus rau xoom thaum lawv ntsib ntawm tus ncej. Hauv 40 qib sab qaum teb los yog sab qab teb, qhov kev ncua deb ntawm a degree ntawm longitude yog 53 mais (85 km).

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