radar wind 中文意思是什麼
radar wind
解釋
雷達測風-
The wind field retrieval data are obtained by plied muscat technique to transact the rude radial velocity data which were observed by dual - doppler radar volume scans
該資料是用雙多普勒天氣雷達同步立體掃描數據，通過muscat技術，反演出風場。 -
First, in order to verify the correct of this retrieval month, by using the data of three - dimensional wind field, raininess field and temperature field that are output by mm5 numerical simulation, we climate the radial velocity field and echo intention field in the in - phase observation area of dual - doppler radar, then, on the base of the upwards retrieval theory and using the radial velocity field and echo intention field in the in - phase observation area of dual - doppler radar, we retrieve the atmospheric three - dimensional wind field
首先，為檢驗此種反演方法的可靠性，我們使用mm5數值模式輸出的三維風場、雨強場、溫度場等數據，分別模擬生成兩部雷達同步觀測區的徑向速度場和回波強度場，然後根據以上的反演理論利用模擬的雙多普勒天氣雷達觀測到的徑向速度場和回波強度場反演出大氣三維風場。 -
It was the first trial to employ the newly equipped migration data acquisition and analysis system for the scanning entomological radar and, a twin light - trap developed in china for, systematic long - term observations of migration of the beet armyworm spodoptera exigua, beet webworm loxostege sticticalis and cotton bollworm helicoverpa armigera in northern china the study provided direct evidence for the migration of 5 ". exigua in china, many parameters of migratory behaviour of the three species of insects, a better understanding of the relationship between migratory behaviour and wind or temperature field. the results enriched the theory of migration and provided new scientific knowledge for pest management in china
本研究初步闡明了我國華北地區空中昆蟲群落結構，首次使用我國自行研製的掃描昆蟲雷達的數字化數據採集及分析系統，及價廉、高效的姊妹燈誘蟲法對華北地區甜菜夜蛾spodopteraexigua 、草地螟loxostegesticticalis和棉鈴蟲helicoverpaarmigera的遷飛進行了長期系統地觀測，得到了甜菜夜蛾在我國北方遷飛的直接證據，三種害蟲遷飛行為的若干參數，認識了昆蟲遷飛行為與風溫場的關系，豐富了昆蟲遷飛理論，為我國害蟲的治理提供了科學依據。 -
The emphasis in this composition is windshear signal processing technology. some processing methods are introduced in detail, they are suppressing clutter, extracting windshear parameters, computing hazard factor and etc. the signal processing simulation is accomplished on computer, it includes simulating microburst echo signal, simulating ground clutter echo signal, filtering clutter, estimating wind speed and calculating hazard factor. from the simulated results, a dangerous windshear is detected 5o ~ 78s, so the radar performance meets the certification requirements proposed by faa and nasa
本文重點研討了風切變信號處理技術，對雜波抑制技術、風切變特徵參數提取技術及危險因子計算方法等內容進行了深入的研究，並進行了計算機模擬，包括微下擊暴流回波信號模擬、地雜波回波信號模擬、雜波抑制、風速提取和危險因子計算。 -
The initial field of the model is the in situ observational data. combining the observational data by the doppler weather radar, the distribution and evolution of macro - physical as well as micro - physical variations such as wind field structure, radar echo structure, overhang echo, bound weak echo region, strong echo wall, water content, etc. in the storm were analyzed
利用中國科學院大氣物理研究所建立的完全彈性三維雹雲數值模式，模擬了1996年6月29日發生在北京東北部京冀交界地區的一次強單體雹暴過程，並結合多普勒雷達探測資料，分析了風暴的流場結構，雷達回波結構特徵，含水量場等宏微觀物理量的分佈及其演變。 -
For better understanding the structure of insect community aloft and how it interacted with the insect community near the ground, especially the effects of the wind - borne migration, observations were conducted with a searchlight trap on an island ( 38 23. 200 " n, 120 54. 500 " e ) in changdao, at the center of baohai channel, in 2002, and with a digital entomological radar and a twin light - trap ( simultaneously operated searchlight trap and ground light - trap ) at a site in langfang ( 39 30 ' 42 " n, 116 36 ' 07 " e, 28 m asl ), in the vicinity of beijing, in 2001 and 2002
為了更好地理解空中昆蟲群落的結構及其如何與近地昆蟲群落相互作用的，尤其是風載遷飛的效應， 2002年在渤海海峽中間的長島縣一小島（ 3823 . 200 』 n ， 12054 . 500 』 e ）上使用探照燈誘蟲器進行了觀測； 2001和2002年我們使用數字昆蟲雷達和姊妹燈（同時使用的探照燈誘蟲器和地面燈誘蟲器）在北京附近的廊坊（ 39 30 42 n ， 116 36 07 e ， 28masl ）進行了觀測。 -
Hf radar can measure the sea surface parameters. on oceanography, hf radar can be used in researching the property of ocean wave, supervising the sea status timely, getting offshore wind field picture as well
它在海洋學上可用於研究海浪性質，能實時監測海況而服務于航海業、海洋工程、海洋警戒、海洋漁業和海洋平臺作業等，還能獲取氣象預報中所需要的海面風場圖。 -
This system also includes an on - line information service through which airline companies can retrieve flight documentation including forecast charts of en - route significant weather and wind temperature data issued by the world area forecast centres at london and washington, weather forecasts for departure, destination and alternate aerodromes, as well as the latest meteorological information of weather radar and satellite images, aerodrome warnings, tropical cyclone information, etc. weather briefings are provided via telephone or video conferencing equipment to flight crew members on request
該系統也包括一在線資料服務，航空公司可透過此服務提取包括由倫敦及華盛頓世界航空區域預報中心發放的航路上重要天氣及風/溫度資料的預報圖、起飛、目的地及備降機場天氣預報的飛行氣象文件。此外，航空公司亦可提取最新的氣象資料包括天氣雷達圖像、衛星雲圖、機場天氣警報及熱帶氣旋資料等。如有需要，航空預報員可以透過電話或視像會議系統向飛行人員作天氣簡報。 -
In addition, airway winds, which are essentially grid - point wind and temperature data over the south china sea for 15 flight levels between 10, 000 and 43, 000 ft, are disseminated to the radar data processing and display system ( rdpds ) of the cad for calculation of the expected arrival time of aircraft at check points
除此之外，氣象數據處理系統將飛機航道風的數據傳送至民航處的雷達數據處理及顯示系統，這些數據是風和溫度的網格點值，其水平范圍覆蓋南海，垂直范圍是由10 ， 000至43 ， 000尺之間的15個飛行高度；以上資料可用來計算航機抵達各定位點的時間。 -
In addition, airway winds, which are essentially grid - point wind and temperature data over the south china sea for 15 flight levels between 10, 000 and 43, 000 ft, are disseminated to the radar data processing and display system rdpds of the cad for calculation of the expected arrival time of aircraft at check points
除此之外，氣象數據處理系統將飛機航道風的數據傳送至民航處的雷達數據處理及顯示系統，這些數據是風和溫度的網格點值，其水平范圍覆蓋南海，垂直范圍是由10 ， 000至43 ， 000尺之間的15個飛行高度以上資料可用來計算航機抵達各定位點的時間。 -
Owing to the anisotropic and the biharmonic nature of microwave radar backscatter on spaceborne scatterometer, and to the scatter model function nolinear and the existence of various noise sources in the measurements in addition to the model function, the retrieval wind results consist of as many as four wind directions
由於衛星散射計探視雷達回波的各向異性的雙調和性質，同時由於散射物理模型函數的非線性及信號中存在噪聲，使得常規點方式風場反演中風向有多至4個解的多解存在。 -
This paper introduces several methods retrieving wind direction from hf radar echo doppler spectrum and analyses the feature of those methods
本論文介紹了現有的從高頻雷達回波多普勒譜中提取風向的幾種方法，分析了這幾種方法的不足之處。 -
A typical bistatic weather radar net work is comprised of one traditional transmitter - receiver radar and one or more passive non - transmitting radar receiver at remote site. this type of multiple radar network offers unique advantages when compared to traditional radar net work. this paper introduces the concepts and principles of bistatic weather radar network and analyses, simulates, calculates the basic concepts of effective scattering particle volume relative to the receiver of bistatic radar network, the doppler shifts of the received signals, gives the formula to conduct the three dimensions wind field
本文從原理上分析了雙基地天氣多普勒雷達的構建、基本幾何關系、有效散射體積及其與雙基地角的關系，有效散射體積和目標與雙基地天氣多普勒雷達主站發射機的距離的變化關系，指出雙基地天氣多普勒雷達有效體積和單基地雷達有效照射體積隨之距離的變化有相似之處，但是由於收發分置的幾何結構，雙基地天氣多普勒雷達的性質與雙基地大氣多普勒雷達的散射角有著密切的關系。 -
The key development of the wind retrieval technique is the application of doppler radar data
多普勒雷達資料的應用，關鍵之一在於發展風場反演技術。 -
The relatively simple mass continuous equation is used to calculate vertical velocity, and use radial velocity projection relation of dual - doppler radar to retrieve the three - dimensional wind field
採用較簡單的質量連續方程求取垂直速度方案，利用兩部雷達的徑向速度投影關系反演大氣三維風場。 -
The results show that the auto - conversion of frozen drops and graupels ( cnfh, cngh ) are the main sources of the hailstones in the strong convective storm studied in the paper, but the contribution of frozen drops is greater than that of graupels. hailstones mainly depend on the processes of collecting supercooled water ( clch, clrh ) to grow. the relatively simple mass continuous equation was used to calculate vertical velocity, and use radial projection relation of dual - doppler radar to retrieve the case ' s three - dimensional wind field
同時模擬分析了冰雹形成的微物理過程，結果表明，本個例模擬雹雲中，冰雹粒子主要由凍滴和霰轉化（ cnfh ， cngh ）形成，但凍滴對冰雹形成的貢獻要比霰大得多，冰雹含水量中心的發展演變與凍滴含水量中心的發展演變相一致，冰雹主要是通過撞凍過冷水過程（ clch ， clrh ）而進一步長大的。 -
The three wind fields components in a domain of 16km x 16km x 10km are analysed with simulated radar data so as to reconstruct uniform and shift wind fields
並通過風場模擬資料在16km 16km 10km的范圍內對風場的三個分量進行了分析，分別對勻速風場、非勻速（變速變向）風場進行了重建。 -
Doppler radar, retrieved wind field, meso - scale
多普勒雷達反演風場中尺度 -
Lastly radar wind field and radar humility field are assimilated in the mm5 4d variational assimilation system
最後把雷達風場和雷達濕度場同化到mm5四維變分同化系統中。 -
The assimilation experimentation results indicate that after assimilating radar wind field of small spatial scale, mesoscale and small - scale precipitation prediction can be improved and mesoscale and small - scale information which ca n ' t appear by tradition datum can be gained, which is valuable to analyze the mesoscale and small - scale system structure ; the effect assimilating radar humidity field is n ' t obvious, which is perhaps correlation with precipitation types and assimilating time. the results also show that adding radar humidity field to initial condition at initial time can supply the gap of the regular data in reflecting the mesoscale and small - scale systems, strengthen the humidity in the initial field, and eventually help to improve precipitation. the experiment of assimilating radar wind field and radar humility field at the same time shows that vapor transportation and local vapor divergence play more significant role in causing excessively heavy rain than only high wet center
同化試驗結果表明：同化空間解析度很高的雷達風場后，能改善中小尺度降水的預報效果，並且能夠得到常規觀測資料所不能得到的中小尺度信息，對分析中小尺度系統結構具有重要意義；同化雷達濕度場效果不明顯，可能與降水類型和同化時刻有關；而直接在初始時刻加入雷達濕度場，補充了常規資料在反映中小尺度系統方面的不足，增強了初始場中的水汽，有利於降水量的增加；同時同化雷達風場和雷達濕度場的試驗表明，水汽的輸送和局地的水汽輻合對于產生特大暴雨的貢獻遠大於僅有高濕中心的貢獻。
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