wind duration 中文意思是什麼

wind duration 解釋
吹送延時
  • wind : n 1 風；大風，暴風；氣流；【機械工程】壓縮空氣。2 【航海】上風；風向；〈古語〉〈pl 〉方向。3 氣息...
  • duration : n. 1. 持久，持續。2. 持續時間，存在時間；期間。adj. -al
  1. Conventional nomograms representing parametric relationships among wave height, wind, fetch and duration are used in operational forecasting of sea state

    在業務運作上應用傳統列線圖里的海浪高度風速風區及風力的持續時間等參數之間的相互關系來預測海面情況。
  2. Data used in this work are north pacific ssta, 160 stations precipitation of china, and ncep reanalysis data. main results are as follow : ( 1 ) it is found that a apparent transition of north pacific ssta in later 1970 ' s : eastern and middle - equatorial pacific ssta turns from cold to warm with area extending, and mid - latitude pacific ( west wind drift zone ) turns from warm to cold. during this transition of ssta, different characters also appear in el nino and la nina : before 1976, la nina happens more frequently, and its duration is longer, el nino zone develops from negative ssta in the early stage ; after 1976, el nino happens a little bit frequent and longer with more intensity than before, el nino zone develops from positive ssta in the early stage ; the course of ssta variation has an enso cycle of 2 - 6 years, annual oscillation of 8 - 9 years, and decadal variation of about 22 years

    本文採用1950 - 1999年北太平洋海表溫度（ sst ） 、中國160站夏季降水和ncep再分析的歐亞500hpa高度場等資料，利用eof 、 svd 、小波分析、合成分析和相關分析等方法，在分析北太平洋海溫時空分佈特徵的基礎上，著重探討了海溫異常及其年代際變化對我國東部降水的影響，並對降水、高度場和海溫三者之間的關系進行了分析，以試圖尋找三者異常之間可能的聯系，主要結論如下： （ 1 ） 1976年前後，北太平洋海溫經歷了一次明顯的轉變，赤道中、東太平洋厄爾尼諾海區由冷轉暖，暖水范圍增大，中緯度西風漂流區海溫由暖轉冷；在這樣的年代際背景下，厄爾尼諾、拉尼娜事件在不同的時期也有不同的特徵：在76年前，拉尼娜事件發生頻率高，持續時間長，事件起始於負海溫距平；而76年後，則是厄爾尼諾事件發生頻率略高，持續時間長，強度增大，事件起始於正海溫距平。
  3. In order to predict the arrival time at 1au of interplanetary shocks, a simple model called disturbance model is established here. in this model, the travel time is assumed to be a function of energy that is released from solar explosives, and input pulse longitudinal width, input pulse duration, the interaction of interplanetary shock and background solar wind are also taken into account

    本論文考慮了激波爆發源角寬度、能量、驅動時間、激波速度及其與背景太陽風之間的相互作用，利用流體力學擾動方程建立起一個激波擾動傳播模型，用於研究激波從太陽傳播到地球軌道附近（ 1au處）所需要的時間問題。
  4. Based on the conventional statistic methods and mexican hat wavelet, the geographical distribution of sunshine duration and wind velocity and their annually, and inter - decadal changes in recent 40 years are analyzed using daily sunshine duration and wind velocity data of 6 stations in naqu from 1961 to 2000

    摘要利用那曲地區6個氣象站1961 - 2000年逐日日照時數和風速資料，採用常規統計方法和墨西哥帽小波變換分析那曲地區近40年日照時數和風速的地理分佈以及年內、年際、年代際變化規律。
  5. The main results are as follows : ( 1 ) in the most of places of naqu, the annual sunshine duration are more than 2550 hours and average wind velocity are higher than 4m ? s ^ ( - 1 ). ( 2 ) the sunshine duration in spring, summer, autumn, winter, growing season ( from may to september ) and a year all decreased in recent 40 years. ( 3 ) the wind velocity in winter decreased and the wind velocity in other 5 periods all increased. ( 4 ) the sunshine duration and wind velocity in 1990 ' s were smaller than that in 1980 ' s for all 6 periods. ( 5 ) the sunshine duration and wind velocity from 2000 to 2005 could continue to decrease

    主要結果是：那曲大部分地區，年總日照時數大於2550小時，年平均風速大於4m ? s ^ （ - 1 ） ；近40年那曲地區春季、夏季、秋季、冬季、生長季（ 5 - 9月）和年6個時段的日照時數均呈減少趨勢；風速冬季呈減少趨勢，其它時段呈增加趨勢； 6個時段的90年代日照和風速都小於80年代； 2000 - 2005年日照時數和風速繼續減小的可能性比較大。
  6. Atmospheric pressure, air temperature, wind speed and direction, cloud type, cloud amount and direction of motion and rainfall amount were observed. sunshine duration was also recorded

    觀測項目有大氣壓力氣溫風速風向雲型雲量雲的移動方向及雨量等日照時間亦有記錄。
  7. Given wind speed, duration, and fetch, it is possible to predict the size of the waves generated by a given storm

    人給出了風速，它的持續時間和吹程，就有可能預報由某一風暴產生的海浪的高度。
  8. Sand - dust storm in china ; duration time ; threshold wind speed of the sand - dust storm

    中國沙塵暴持續時間沙塵暴閾值風速
  9. This paper calculated the maximum mean velocity of wind and correspondences fluctuating wind continuous chart in duration of 100 years using greatest table sequence record in 10 minutes every month ( 3 ~ 5years ) in the basis of service life of the designed bridge and more probability

    本文從實際風速時程記錄開始，利用短期（ 3 5年）連續的10分鐘月最大時程記錄，在一定保證率下，按照小樣本推算極值的方法，推算100年一遇的平均風速以及在此基礎上的脈動風時程。
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