雨反射波 的英文怎麼說
中文拼音 [yǔfǎnshèbō]
雨反射波
英文
rain echo-
The reflected microwave would give the radar a false impression of rain
這從地面反射回來的回波會使雷達誤以為是降雨。The maximum of instantaneous global radiation is beyond 1000w / m2 and the ten - days average intensity is 338. 90w / m2 because of high atmospheric transparency over semi - arid rainfed agriculture region of loess plateau between june and august. global radiation, reflected global radiation and surface long wave radiation emerge the characteristic of daily variations on a typical clear day and cloudy day, whereas atmospheric long wave radiation has not this characteristic. meanwhile, net radiation, latent heat flux sensible heat flux and soil heat flux appear the same characteristic as the mean daily variations above spring wheat field and bare soil on a typical clear day and cloudy day
黃土高原半乾旱雨養農業區夏秋季大氣透明度較高，晴天地面的總輻射值最大瞬時值均超過1000w m ~ 2 ， 6 8月總輻射旬平均強度為338 . 90w m ~ 2 ；典型晴天和陰天總輻射、反射輻射、地表長波輻射均表現出明顯的日變化特徵，而雨天沒有明顯的日循環規律；無論是晴天、陰天還是雨天，大氣長波輻射基本沒有明顯的日變化規律。Then, after computing xpd induced by rain, its forecast model at different propagation distance is found. this paper also discusses the relation of reflectivity of rain with rainfall rate, taking different polarization wave into account, and that of fog with visibility
在研究了雨、霧介電特性的基礎上，計算了雨的去極化解析度，得到了不同頻率、不同傳播距離的去極化解析度預報模型；計算了不同極化狀態的波的反射率隨降雨率的變化規律。According to different water phenomena, we use two different method to produce waves source : the first method is by specifying the boundary conditions and initialization conditions, this method simulate the dam breaking, reflection and diffraction of water waves ; the second method is by specifying disturbance model, this method simulate water droplets, waterfall, waves of ship ; in the first part of this thesis, we discuss the prevalent methods of the simulation of water scenes, in the second part of this thesis, we describe the numerical methods of solving the shallow water equations using the finite difference method and the finite volume method respectively, in the third part of this thesis, we simulate some realistically liquid phenomena such as rain droplets, the waves of ship, dam breaking etc
產生水波首先要有波源，設置不同的波源便可以得到不同的水流情形，我們用兩種方法來產生波源：一種是通過設置邊界條件和初始條件產生，這種方法用於模擬潰壩波的反射、折射等現象；另一種是通過擾動控制產生，這種方法用於模擬雨滴、瀑布、船波等自然現象。本論文的第一部分我們討論了目前水動畫模擬常用的幾種方法；在第二部分討論了我們所使用的兩類數值方法：有限差分方法和有限體積方法；在第三部分我們模擬了雨滴、船波、潰壩波等一些水流現象。Over ocean : the structure of typhoon and the relation between rain rate and tb of all the tmi channels are investigated using the trmm data, based on which three channels are composed to reflect the rain rate well
對于海洋地表：通過微波圖像分析了臺風結構，重點研究了各通道亮溫與地面瞬時雨強的關系，利用海洋表面低頻通道對降水的發射增溫作用，合理組合低頻三通道來反映降水結構。That enables use to be made of what was previously just irritating noise ? the part of a radar beam that is reflected not from raindrops, but from fixed objects such as buildings
這種方法使運用那些原先被認為只是由惱人的噪聲組成的東西成為可能? ?這一部分的雷達波不是從雨滴反射來得，而是來自諸如建築物那樣的固定物體。For the case of a doppler radar, the faster the raindrops move towards the radar, the higher will be the frequency i. e. pitch of the microwave reflected from raindrops fig. 1
多普勒雷達利用同一原理：雨點移近雷達的速度越快，反射回來的微波頻率即聲調就越高圖1 。The bottom image of reflectivity which provides estimation of the rain intensity depicts the hook - shaped characteristic of the storm. this is another typical signature of tornado
下圖為反射率表示估計的降雨強度圖像，顯示出該風暴出現了狀回波，這是卷風另一典型特徵。The bottom image of reflectivity ( which provides estimation of the rain intensity ) depicts the hook - shaped characteristic of the storm. this is another typical signature of tornado
下圖為反射率（表示估計的降雨強度）圖像，顯示出該風暴出現了?狀回波，這是龍卷風另一典型特徵。Occasionally, a microwave pulse reflected from a distant rain area may arrive at the radar after the radar has emitted the next pulse of microwave
有些時候，當從遙遠的雨區反射回來的微波到達雷達時，雷達已經再次發出脈沖。One reason is that radars used to track storms can detect water in the atmosphere only once it has condensed into clouds or raindrops, and thus reflects the beam
一個原因是被用來追蹤雷暴的雷達只可以發現大氣中凝結成雲或雨滴的水，因為水能以這樣的形態反射波束。分享友人