Basic layi daya Duniya. Arewa na yammacin sahara da kuma ta labarin kasa

Neman a duniya, ko wata taswirar duniya, za mu gani a layin wutar na bakin ciki blue Lines. Daga cikin su zai zama babban da a layi daya Duniya: ekweita, biyu iyakacin duniya da'irar, kazalika da Arewa da kudancin yammacin sahara. More game da su za a tattauna a cikin labarin.

Basic layi daya Duniya

All meridians da daidaici a kan model na duniya tamu, ba shakka, sun al'ada da kuma hasashen. Dukan su da aka tsara daga kimiyya da m manufar. Duk da haka, daga gare su akwai biyar da muhimmanci sosai daidaici: ekweita, iyakacin duniya da'irori, Southern da kuma Northern yammacin sahara. The wanzuwar wadannan kirkirarrun Lines aka kai tsaye alaka da ainihin dokoki na halitta (jiki da kuma geometrical). Kuma ilmi daga gare su musamman da muhimmanci ga m binciken labarin kasa.

Ekweita ya raba duniya kashi biyu daidai halves - Arewa da Kudancin yammancin duniya. A wuri na wannan layi daidai perpendicular zuwa axis of Duniya ta juyawa. Wannan shi ne wani dogon layi daya duniyar tamu: ta tsawon na 40 kilomita dubu. Bugu da kari, cikin Sun at ekweita sau biyu a shekara ne a cikin Zenith, da kuma dukan kusa-Equatorial yankin na Duniya sami mafi girma adadin hasken rana radiation a kowace shekara.

Arctic Circle - a layi daya cewa iyakance duniyar tamu ta surface mamaki kamar iyakacin duniya ranar da iyakacin duniya dare. Wadannan Lines dace da latitud na 66,5 digiri. Summer mazauna, wanda ya zama a Arctic Circle, suna da damar da za su kalla da iyakacin duniya kwanaki (idan rana ta taba buga a kan sararin sama). A lokaci guda a kan wasu gefe na Duniya sarari suKe kuma shi ba ya bayyana (iyakacin duniya dare). Duration iyakacin duniya kwana da dare ya dogara da yadda hankali da takamaiman site aka located sandunan na duniya.

arewa Tropic

Yammacin sahara a duniya tamu biyu, kuma sũ, bã yi da hatsari. Sau ɗaya a shekara rana a ta Zenith a kan daya daga cikinsu (22 Yuni), da kuma a cikin wani watanni shida - a kan sauran (22 Disamba). A gaskiya, da kalmar "Tropic" da aka samu daga Girkanci tropikos, wanda fassara zuwa "kunna". Babu shakka, muna magana ne game da motsi na da rana a kan wani sarari suKe Sphere.

Arewa Tropic aka located arewa na ekweita. Shi ne ake kira da Tropic of Cancer. Daga ina sunan? Gaskiyar cewa shekara dubu biyu da suka wuce, da rana, a lokacin bazara solstice, shi ne a cikin ƙungiyar taurari na Cancer (yanzu samaniya jiki ne dake a cikin ƙungiyar taurari Gemini a cikin wannan lokaci na shekara).

A daidai latitudes na Arewa yammacin sahara - 23 ° 26 '16 ". Duk da haka, matsayinsa ya canjãwa a kan lokaci saboda canje-canje a cikin karkatar na Duniya ta axis, nutation da sauran Geophysical tafiyar matakai.

A labarin kasa na Tropic of Cancer

Arewa Tropic tsallaka uku tekuna (Pacific, Atlantic, Indian) da kuma nahiyoyi uku (Eurasia, Afirka da kuma Arewacin Amirka). Layi daya kafa ta ƙasar ashirin kasashe, ciki har Mexico, Algeria, India da kuma China.

A latitud da Tropic of Cancer ne mai yawan biranensu. The most of su:

• Dhaka (Bangladesh).
• Karachi (Pakistan).
• Bhopal (Indiya).
• Guangzhou (China).
• Madina (Saudi Arabia).

Bugu da kari, da Tropic of Cancer crosses da dama na gudãna: Nilu, ganges, Mekong, da dai sauransu A kadan kudu na wannan layi daya ne Makka - babban alfarma wuri na musulmi a duniya ..

Tropic of Capricorn da labarin kasa

23 ° 26 '21 "- wannan ne latitud da Tropic of Kudu a farkon wannan karni. A matsayin wannan layi ne ma ba m kan lokaci. Tropic sannu a hankali canjawa zuwa ga duniya ta ekweita.

Layi daya kuma yana da wata biyu suna - da Tropic of Capricorn. Yana crosses duk 10 jihohin da suke da a kan nahiyoyi uku na duniya (South America, Afrika da kuma Australia). A mafi girma a birnin, located a kan Tropic - Brazil Sao Paulo. Shi ne m cewa wannan layi daya crosses Australia kusan a tsakiyar, game da shi, haddasa gwaji m sauyin yanayi na nahiyar.

Tropic of Capricorn yawanci bikin a ƙasa a cikin hanyoyi daban-daban. A mafi ban sha'awa alama sun sanar da kammala na Kudancin Tropic aka located in Chile. Kusa da garin Antofagasta a 2000, shi da aka gina wata babbar 13-mita high tunawa.

a ƙarshe

Yanzu da ka san inda ta Arewa Tropic aka located, wanda kasashe da nahiyoyi shi crosses. Haka kuma an kira da Tropic of Cancer. Ya Notes a arewacin latitud, a kan abin da rana zai iya tashi zuwa Zenith. Mirror cikinta ne a Kudancin Hemisphere da Tropic of Capricorn.