Lub taub hau, lub teeb ntawm lub teeb ci - qhov tseem ceeb yog qhov muaj kev cuam tshuam siab rau tiv thaiv lub teeb poob- tshwj xeeb tshaj yog spectral angular / angular hemispherical reflectivity.
Qhov tseem ceeb ntawm cov khoom kho qhov muag yog dab tsi?
Cov khoom kho qhov muag tseem ceeb suav nrog reflectance thiab opacity. Nws yog ib qho tseem ceeb kom paub tias kev ua thiab kev hloov pauv hauv cov ntawv muaj pes tsawg leeg yuav cuam tshuam rau cov khoom siv kho qhov muag.
Vim li cas cov hlau muaj qhov cuam tshuam siab?
Yog li cov hlau muaj qhov cuam tshuam zoo heev, vim tias: feem ntau ntawm cov photons tau tawg tawg tawg, uas yog kev xav . tsawg dua ntawm cov photons tau inelastically tawg, cov hlau no ua kom sov. tsawg tsawg ntawm photons tau absorbed nyob rau hauv qhov pom ntau yam, feem ntau ntawm cov no tau reflected thiab uas muab hlau ib ci xim.
Vim li cas cov hlau ua kom pom qhov pom kev siab thiab nqus siab rau lub teeb sib piv rau iav nrog nws qhov tsis tshua muaj kev cuam tshuam thiab nqus dej tsawg?
Thaum lub teeb pom kev zoo ntsib cov khoom, hluav taws xob tuaj yeem nqus los yog cuam tshuam los ntawm qhov chaw. Txij li thaum lub teeb pom kev los ntawm cov hlau yog siab lawv qhov nqus yog qhov qis vim tias qhov sib npaug ntawm ob qho tib si yuav tsum sib haum rau 100% ntawm qhov teeb meem teeb meem. …
Dab tsi yog qhov cuam tshuam qhov muag?
Lub sij hawm reflectance txhais tau tias yog piv ntawm kev cuam tshuam radiant flux (optical zog) rau qhov xwm txheej flux ntawm kev xavobject – piv txwv li, ib qho khoom siv kho qhov muag lossis qhov system. … Qhov kev xav tau tsuas yog ntsuas tus nqi ntawm lub teeb rov qab mus rau qhov chaw ib nrab ntawm lub teeb tuaj.
