Degree grid of the Earth: Western Hemisphere (lub teb chaws thiab sab av loj)

Cov txheej txheem:

Degree grid of the Earth: Western Hemisphere (lub teb chaws thiab sab av loj)
Degree grid of the Earth: Western Hemisphere (lub teb chaws thiab sab av loj)
Anonim

Peb lub ntiaj teb tau muab faib ua Sab Hnub Poob Hemisphere thiab Sab Hnub Tuaj, thiab qhov kev faib no yog qhov zoo. Dab tsi kab faib lub ntiaj teb rau hauv ob hemispheres? Lub teb chaws twg thiab lub tebchaws twg nyob rau sab hnub poob Hemisphere? Cov lus teb rau tag nrho cov lus nug no tuaj yeem pom hauv peb tsab xov xwm txaus siab.

Grid of the Earth: Eastern and Western Hemisphere

Kev zoo siab yog dab tsi? Qhov no yog lub network ntawm cov kab mob, uas yog kos rau ntawm lub ntiaj teb thiab cov duab qhia los ntawm tib neeg kom yooj yim. Tshwj xeeb, cov kab no xav tau los ntawm cov kws tshawb fawb thiab cov kws tshawb fawb, cov neeg taug kev thiab cov thawj coj ua lag luam. Lawv kuj tseem tsim nyog txhawm rau txhawm rau txiav txim siab sai thiab raug qhov chaw ntawm thaj chaw tshwj xeeb ntawm thaj chaw ntawm peb lub ntiaj teb.

Cov kab ntawm daim phiaj degree suav nrog kev sib luag thiab meridians, nrog rau cov kab ntawm cov tropics thiab polar voj voog. Lawv pom nyob rau yuav luag txhua daim duab qhia chaw.

Western hemisphere
Western hemisphere

Yog hais tias kev faib ntawm lub ntiaj teb los ntawm txoj kab nruab nrab mus rau sab qaum teb thiab yav qab teb Hemispheres yog cov laj thawj thiab ncaj ncees, ces Sab Hnub Poob Hemisphere, nrog rau Sab Hnub Tuaj Hemisphere, tau raug cais tawm. Yuav ua li casqhov no tshwm sim, peb yuav tham ntxiv.

Zero thiab 180th meridians

Nws yog ob lub meridians uas faib peb lub ntiaj teb ua ob hemispheres: Western thiab Eastern.

Zero (lossis Greenwich) meridian yog qhov taw qhia rau txhua thaj chaw ntev ntawm lub ntiaj teb. Nws yog hu ua Greenwich vim nws hla dhau qhov ntsuas qhov ntsuas ntawm tib lub npe, nyob ze London. Qhov kawg tau tsim rov qab rau xyoo 1675 los ntawm British King Charles II.

Ntxim qab kawg, txog rau thaum xaus ntawm lub xyoo pua 19th, qee lub xeev muaj lawv tus kheej meridian. Yog li, nyob rau hauv Russia lub luag hauj lwm no tau ua si los ntawm Pulkovo meridian, thiab nyob rau hauv Fabkis los ntawm lub thiaj li hu ua Paris meridian. Tsuas yog xyoo 1884, ntawm lub rooj sib tham thoob ntiaj teb los ntawm cov teb chaws, nws tau txiav txim siab los tsim Greenwich meridian ua tus xoom. Nws hla dhau thaj chaw ntawm cov tebchaws xws li Great Britain, Fabkis, Spain, Algeria, Mali, Ghana thiab Burkina Faso. Cov neeg ncig tebchaws feem ntau tuaj rau Greenwich Observatory. Thiab lawv txhua tus yuav tsum ua ib qho kev cai dab qhuas: sawv nrog ib ko taw nyob rau sab hnub tuaj hemisphere, thiab lwm qhov nyob rau sab hnub poob.

Teb chaws Europe sab hnub poob Hemisphere
Teb chaws Europe sab hnub poob Hemisphere

Thiab, 180th meridian yog txoj kab xwm txheej uas txuas ntxiv rau Greenwich meridian ntawm lwm sab ntawm lub ntiaj teb. Nws kuj ua hauj lwm raws li lub hauv paus rau lub thiaj li hu ua hnub kab, uas, los ntawm txoj kev, muaj ib tug nkhaus trajectory es tsis yog ib tug ca. Nws hloov mus rau hauv cov chaw uas lub meridian hla mus rau thaj chaw muaj neeg nyob.

Lub 180th meridian muaj lwm qhov nthuav dav. Lub ntsiab lus yog tias nws tuaj yeem hu ua kab zoo lisab hnub tuaj thiab sab hnub poob longitudes. Qhov no meridian (zoo li lwm yam hauv lub ntiaj teb) txuas rau sab qaum teb ntawm lub ntiaj teb nrog rau sab qab teb. Nyob rau tib lub sijhawm, nws hla cov khoom hauv qab no: Chukchi Peninsula, Chukchi Hiav Txwv, Bering Hiav Txwv, cov saw ntawm Aleutian Islands, Fiji, nrog rau qhov dav dav ntawm Antarctica.

Lub teb chaws thiab thaj av ntawm Western Hemisphere

Lub teb chaws twg nyob rau sab hnub poob Hemisphere? Yog tias koj saib ntawm daim ntawv qhia, cov lus teb rau lo lus nug no yooj yim heev. Qhov no yog North thiab South America (tag nrho), nrog rau ib feem ntawm Tebchaws Europe thiab Africa.

Nyob rau hauv cov ntawv geopolitical thiab kev sib tham, lo lus western hemisphere kuj muaj ntau heev, uas yog siv los ua ib lo lus rau lo lus "America" (lub ntsiab lus ntawm lub ntiaj teb no, tsis yog ib lub teb chaws).

Western hemisphere lub teb chaws
Western hemisphere lub teb chaws

Lub teb chaws ntawm no hemisphere muaj ntau qhov sib txawv. Muaj cov tebchaws loj ntawm lawv (Tebchaws Asmeskas, Canada, Brazil) thiab lub xeev me me (piv txwv li, Dominica lossis Bahamas). Hauv 2014, 33 lub teb chaws ntawm Sab Hnub Poob Hemisphere tau tuav lub rooj sib tham ntawm Cov Neeg Tsim Kho Tshiab ntawm Latin American thiab Caribbean States (CELAC luv luv). Lub rooj sib tham tau tshwm sim ntawm cov kob ntawm kev ywj pheej, hauv lub nroog Cuba - Havana.

Zoo kawg

Sab Hnub Poob Hemisphere yog lub hemisphere ntawm lub ntiaj teb, uas nyob nruab nrab ntawm Zero thiab 180th meridians ntawm lub ntiaj teb. Cov cheeb tsam thaj chaw ntawm txhua yam khoom nyob hauv lub hemisphere no feem ntau hu ua West longitude coordinates.

Nyob rau sab hnub poob Hemisphere nyob rau sab qaum teb thiab South America (tag nrho), ib feem ntawm Tebchaws Europe thiab Africa, cov kobGreenland, Chukotka, thiab ntau lub xeev ntawm Oceania.

Pom zoo: