When they reach the earth's magnetic field the energy is tra ferred into visual light around the earth's polar regio 當它們到達地球磁場之后,能量便在地球極圈地帶轉(zhuǎn)化成可視的光線。
When they reach the earth's magnetic field the energy is transferred into visual light around the earth's polar regions 當它們到達地球磁場之后,能量便在地球極圈地帶轉(zhuǎn)化成可視的光線。
This paper discuss the key technologies of virtual manufacture, including the method and theory of the displaying of the 3d scene, polygonal mesh model, visual light model, collision checking, 3d geometry transform and the particle system 對虛擬制造的關(guān)鍵技術(shù)進行了討論,包括三維場景的顯示、多邊形網(wǎng)格模型、真實感光照模型、碰撞監(jiān)測、三維幾何變換和粒子系統(tǒng)等。
First, under the given boundary condition and reasonable simplified condition, this paper develops radiation transmitting equations in atmosphere applied in infrared waveband and visual light waveband from common equation of radiation transmitting . then, the formula between observation of satellite and net surface radiation is established according to the developed equations, from which it is found that net surface radiation is relative to sun zenith, land surface and cloud albedo, etc . at last, by using data of satellite visual light ( vis ), infrared 1 ( ir1 ), infrared 2 ( ir2 ) and water vapor ( ir3 ) channel, sun zenith and net surface radiation, a regression formula is built 本文從大氣中太陽輻射傳輸?shù)囊话阈苑匠倘胧郑脒吔鐥l件及簡化條件,推導(dǎo)出紅外波段和可見光波段的大氣輻射傳輸方程,由此建立起衛(wèi)星觀測輻射與地面凈輻射的關(guān)系,文章還就衛(wèi)星觀測到的輻射與云量、云高、云的光學(xué)厚度、云及地面反照率等之間的關(guān)系進行了理論分析,可以幫助更好地理解云對地面凈輻射的影響。
First, under the given boundary condition and reasonable simplified condition, this paper develops radiation transmitting equations in atmosphere applied in infrared waveband and visual light waveband from common equation of radiation transmitting . then, the formula between observation of satellite and net surface radiation is established according to the developed equations, from which it is found that net surface radiation is relative to sun zenith, land surface and cloud albedo, etc . at last, by using data of satellite visual light ( vis ), infrared 1 ( ir1 ), infrared 2 ( ir2 ) and water vapor ( ir3 ) channel, sun zenith and net surface radiation, a regression formula is built 本文從大氣中太陽輻射傳輸?shù)囊话阈苑匠倘胧?,引入邊界條件及簡化條件,推導(dǎo)出紅外波段和可見光波段的大氣輻射傳輸方程,由此建立起衛(wèi)星觀測輻射與地面凈輻射的關(guān)系,文章還就衛(wèi)星觀測到的輻射與云量、云高、云的光學(xué)厚度、云及地面反照率等之間的關(guān)系進行了理論分析,可以幫助更好地理解云對地面凈輻射的影響。