Lokacin da muke magana akan magnetic declination A kowane wuri a duniya muna magana ne game da kusurwa tsakanin magnetic arewa da yankin arewa. Yankin arewa kuma ana kiransa da sunan arewa na gaskiya. Wannan yankewar maganadisu shine yake banbanta tsakanin yankin arewa da wanda yake nunawa ta hanyar compass wanda shine magnetic arewa.
A cikin wannan labarin zamu gaya muku duk halaye da kuma irin aikin da maganadisu ke da shi.
Babban fasali
Rushewar maganadisu ba koyaushe bane yake karko akan duniyar tamu. Dogaro da inda muke, ƙimar wannan na iya bambanta. Bayan haka, saboda juyawa da juyawar duniya da tasirin abincin, wannan darajar ta magnetic declination shima yana canzawa tare da wucewar lokaci. Zamu iya cewa wannan lokacin yana taimaka mana wajen kawar da duk rashin jituwa da ke tsakanin samfuran sanadiyyar dalilai da gaskiya. Zai iya taimaka mana samun ra'ayi game da iyakokin kuskure da kurakuran lissafi waɗanda suke wanzu a cikin tsarin ma'aunin hankali.
Kalmar yankewar maganadiso baya nuna cewa akwai wasu canje-canje da ba zato ba tsammani a cikin gatarin daidaitawa. Hakanan zamu iya samun ra'ayoyi daban-daban, yanayin ƙasa waɗanda aka wargaza su kuma a sake tsara su da kuma wasu dama don mu sami damar yin bincike.
Akwai rukunin bincike da samarwa wanda aka gina kwanan nan kuma wanda ya ƙunshi masu zane-zane na gani, masu kulawa da masanan waɗanda aikinsu wani ɓangare ne na wayar da kan jama'a game da karatun mulkin mallaka da na mulkin mallaka tare da yanayin da ke kusa da nan da nan. Wannan rukunin bincike ana kiran sa magnetic declination.
Yadda Magnetic Declination ke aiki
Idan muna so mu san yadda wannan abin duniyar tamu take aiki, dole ne mu san menene magnetism na duniya. Duniyar Planet tana da filin maganadiso saboda yanayin abubuwan duniya. Sauran duniyar ta ƙunshi gallan ƙarfe da nickel. Waɗannan ƙananan ƙarfe suna cikin yanayin rabin ruwa a cikin ƙarshen duniyar. Wannan ya faru ne saboda karuwar yanayin zafi a zurfin da kuma matsin lambar da ake samun wadannan narkewar karafan da duwatsun.
Godiya ga motsi wanda yake tsakanin daskararrun kayan aiki a cikin doron ƙasa ana kiransu isar ruwa. Waɗannan raƙuman ruwa masu gudana a cikin rigar sune waɗanda ke haifar da motsi na faranti na tectonic da waɗanda ke inganta ƙaura ta nahiyoyi. Bugu da kari, su ne musababbin wannan maganadisu na maganadisu.
Kamar yadda yawancin ƙarfe masu nauyi suke cikin ci gaba da motsi, ana samar da igiyoyin lantarki daban-daban waɗanda aka samar a lokaci guda kamar motsi da kuma samar da filin lantarki. Wannan ya sa Duniya tayi kamar katon maganadisu kuma tana da sandunan maganadisu guda biyu: sandar arewa da kuma kudu. Idan mukayi magana ta mahangar mahaukata, sandar arewa tana kudu kuma tana kusa da filin kudu. A wannan bangaren, magnetic south pole yana kusa da yankin arewa. Wannan halin da muke ciki na duniyoyin maganadiso na wannan duniyar tamu shine yake tabbatar da cewa arewacin sandar da allurar maganadisu ta magnetized take nuni zuwa arewacin yankin. Matsayin sandunan maganadisu bai yi daidai da na sandunan kasa ba. Idan gaskiya ne cewa suna kusa da su sosai duk da cewa basu kula da tsayayyen matsayi ba. Wannan matsayin ya banbanta tsawon shekaru da aka bayar daban-daban motsi na Duniya.
Yanayin kasa da maganadisu arewa
Yankin arewa shine abin da aka sani da sunan arewa na gaske. Ya dace da yanayin juyawar duniya kuma shine wanda yake ayyanawa a: haɗuwa da farfajiyar ƙasa. A gefe guda muna da sandar arewa ta arewa kuma a ɗaya hannun kuma akwai ƙudancin kudu.
Idan mukayi magana da maganadisun kalmomi zamu iya cewa an bayyana ma'anar maganadiso ta arewa ta hanyar wannan maganadisu inda compasses suke nunawa. Matsayin wannan sandar ƙarfin maganadiso bai yi daidai da na yankin arewa ba kuma yana motsawa tsawon shekaru. Tunda akwai karatu da rahotanni kan matsayin wannan magnetic field din, an sani cewa matsayin ya banbanta kusan kilomita 1100 nesa tun ƙarni na XNUMX. Fiye da lessasa sananne ne cewa a kowace shekara magnetic arewa pole tana canza matsayinta da kimanin kilomita 60.
A halin yanzu sandan bakin magnetic yana nesa da nisan kilomita 1600 daga sandar arewa. Tana cikin arewa maso gabashin Kanada kuma tana matsawa zuwa Rasha. Ba za mu manta cewa tsananin maganadiso arewa gaci ne na kudu ba.
Mahimmancin yankewar maganadisu
Kusurwa ce a cikin jirgin sama wanda yake a kwance wanda aka hada shi da magnetic north da kuma geographic north. Wannan kusurwa, can yana motsi da maganadiso a kowace shekara zai kuma ba darajojinsa. Ba wai kawai ya bambanta da shekaru bane har ma da wurin da muke. Aya daga cikin dalilan da yasa ginshiƙan jirgi ke da wani ƙimar shi ne saboda akwai ƙaruwa ko raguwar kowace shekara a ƙimar magnetic gwargwadon matsayin da muke.
Don sanin darajar magnetic yanayin dole ne mu san cewa, idan arewacin maganadisu yana tsaye zuwa hannun dama na arewa ta gaskiya, yanayin magnetic yana da kyau. A gefe guda, idan arewa mai maganadisu tana gefen hagu na arewa ta gaskiya, yanayin magnetic yana da ƙima mara kyau. Wannan shine yadda lokacin da muke nazarin jadawalin jiragen ruwa zamu iya samun ƙimar da'irar da aka kammala a tsakanin digiri 0 da 360 kuma hakan yana nuna ƙimar ƙaddamar da maganadiso na shekarar bugun da aka faɗi. Bugu da kari, yawanci yakan fada mana darajar bambance-bambancen shekara-shekara na wannan jujjuyawar maganadisu a matsayin aikin motsi na sandar arewa mai maganadisu.
Idan muka ninka bambancin shekara-shekara na magnetic declination da shekarun da suka gabata daga bugun ginshiƙi har zuwa yau zamu iya samun darajar ƙimar sabunta maganadisu. Ta wannan hanyar, ba lallai ba ne cewa kowace shekara dole mu sayi sabon jadawalin jiragen ruwa.
Ina fatan cewa tare da wannan bayanin zaku iya koyo game da yankewar maganadisu.