Daim ntawv qhia topographic quadrangle yog dab tsi?
Daim ntawv qhia topographic quadrangle yog dab tsi?

Video: Daim ntawv qhia topographic quadrangle yog dab tsi?

Video: Daim ntawv qhia topographic quadrangle yog dab tsi?
Video: Tswv Yexus lub neej thaum pib txug thaum xaus 2024, Kaum ib hlis
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A " plaub fab " yog Tebchaws Meskas Geological Survey (USGS) 7.5-feeb daim ntawv qhia , uas feem ntau yog lub npe tom qab lub zos physiographic feature. Hauv Tebchaws Meskas, 7.5 feeb daim duab qhia chaw npog thaj tsam ntawm 49 txog 70 square mais (130 txog 180 km2).

Nyob rau hauv txoj kev no, dab tsi yog qhov topographic quadrangle?

A " plaub fab " yog lub tebchaws United States Geological Survey (USGS) 7.5-feeb daim ntawv qhia, uas feem ntau yog muaj npe tom qab lub zos physiographic feature. Lub shorthand "quad" kuj siv, tshwj xeeb tshaj yog nrog lub npe ntawm daim ntawv qhia; piv txwv li, "Ranger Creek, Texas quad map "Cov maps no yog ib feem peb ntawm cov laus 15-feeb series.

Tsis tas li ntawd, daim ntawv qhia saum toj kawg nkaus quadrangle yog dab tsi thiab lawv nyob li cas? Txog ntawm daim ntawv qhia : Cov daim ntawv qhia qhia cov kab contour (kab ntawm qhov sib npaug ntawm qhov siab) uas qhia txog cov yam ntxwv ntawm thaj av, nrog rau cov kwj deg, qee txoj kev, txoj kev taug, hav zoov hom, vaj tse, thiab lwm yam ntuj tsim thiab tib neeg tsim. 7 1/2 feeb quadrangle maps yog luam tawm ntawm qhov ntsuas ntawm 1: 24, 000.

Tsuas yog li ntawd, daim ntawv qhia topographic yog dab tsi thiab nws siv rau dab tsi?

A daim ntawv qhia topographic yog ib tug ncauj lus kom ntxaws thiab meej ob-dimensional sawv cev ntawm ntuj thiab tib neeg tsim nta nyob rau hauv lub ntiaj teb nto. Cov no daim ntawv qhia yog siv rau ntau yam kev siv, los ntawm kev mus pw hav zoov, yos hav zoov, nuv ntses, thiab hiking mus rau kev npaj hauv nroog, kev tswj cov peev txheej, thiab kev soj ntsuam.

Daim ntawv qhia topographic qhia dab tsi?

Topographic maps yog tsim los ntawm cov duab saum toj saud thiab nthuav qhia cov contours ntawm thaj av, nrog rau toj, ridges, thiab kwj ha, nrog rau cov pas dej, dej, creeks, txoj kev, thiab txoj kev. Contour kab ua yeeb yam qhov siab ntawm av. Contour kab uas yog sharply tapered qhia txog kev nce toj.

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