Qhov kev ncua deb ntawm daim ntawv qhia mercator puas yog?

Cov txheej txheem:

Qhov kev ncua deb ntawm daim ntawv qhia mercator puas yog?
Qhov kev ncua deb ntawm daim ntawv qhia mercator puas yog?
Anonim

Yog li ntawd, los ntawm kev tsim kho, Mercator qhov projection yog zoo meej, k=1, raws txoj kab nruab nrab thiab tsis muaj lwm qhov. Ntawm lub latitude ntawm ± 25 ° tus nqi ntawm sec φ yog hais txog 1.1 thiab yog li qhov projection yuav pom tau tias yog nyob rau hauv 10% nyob rau hauv ib tug strip ntawm dav 50 ° nyob rau hauv lub equator.

Mercator daim ntawv qhia qhia meej yog dab tsi?

Mercator projection, hom phiaj xwm phiaj xwm qhia hauv 1569 los ntawm Gerardus Mercator. … Qhov kev kwv yees no tau siv dav rau kab kos kev taw qhia, vim tias ib txoj kab ncaj nraim ntawm Mercator qhov projection daim ntawv qhia yog ib txoj kab ntawm qhov tseeb qhov tseeb uas ua rau tus navigator los npaj txoj kab ncaj nraim.

Puas daim duab qhia Mercator puas qhia qhov deb?

Txawm hais tias qhov loj thiab cov duab yog distorted ntawm cov phiaj xwm phiaj xwm, qhov deb thiab cov lus qhia yog qhov tseeb thaum txoj kab ntawm kev mus los ntawm qhov chaw ntawm daim ntawv qhia.

Puas Mercator qhov projection khaws cia nyob deb?

Tus Mercator projection tsis khaws thaj chaw kom raug, tshwj xeeb tshaj yog thaum koj mus ze rau tus ncej. Ntawm qhov tod tes, ib hom kev kwv yees uas tsis cuam tshuam cheeb tsam yog Cylindrical Equal Area. Daim ntawv ceeb toom ntawm no yuav ua li cas Greenland zoo li qhov loj me piv rau South America.

Dab tsi yog qhov tsis zoo ntawm daim ntawv qhia Mercator?

Qhov tsis zoo: Mercator qhov projection distorts qhov loj ntawm cov khoom raws li lub latitude nce los ntawm Equator mus rau tus ncej, qhov twg qhov ntsuas ua tsis kawg. Yog li, piv txwv li, Greenland thiab Antarctica tshwm sim ntau dua qhov txheeb ze rau thaj av loj nyob ze ntawm txoj kab nruab nrab dua li qhov tseeb.

Pom zoo: