塵暴區 的英文怎麼說
中文拼音 [chénbàoqū]
塵暴區
英文
dust bowl-
One of the most destructive droughts in recent memory is the 1930s american dust bowl, which lasted only six years
人們記憶中最近的一次最具破壞性的旱災發生在二十世紀三十年代美國的「于旱塵暴區」 ,它僅持續了六年。Now mostly abandoned, route 66 was the primary route between chicago and los angeles in the mid - twentieth century, a route especially popular with dust bowl migrants
66號路線主要是20世紀時芝加哥和洛杉磯受乾旱塵暴區移民歡迎的路線,現在大多數已被遺棄了。Impacts of climate abnormality on dust devil in north china and countermeasures
氣候異常對我國北方地區沙塵暴的影響及其對策The result shows that : the sand - dust storm occured in favorable climate background that is drought and rainless, the tilted trough and mongolia cyclone are the important weather systems that caused the severe sand - dust storm, tilted trough and strong frontal zone caused the mongolia cyclone developed and the clod front strengthened at surface, high jet and ferrel circulation are the main reason that momentum spreaded downward from higher level and frontal zone strengthened on lower level
結果表明:沙塵暴是在乾旱少雨的有利的氣候背景下產生的。斜壓槽和蒙古氣旋是觸發這次強沙塵暴天氣過程的重要的天氣系統,高空斜壓槽和強鋒區促使了地面蒙古氣旋的發展和冷鋒的加強,誘發沙塵暴天氣。高空急流及其下方的ferrel環流起到了高層動量下傳和加強低層鋒區的重要作用。The gallery presents typical satellite images taken over the asia - pacific region. the topics include calamities such as typhoons, severe floods and duststorms, as well as other interesting phenomena such as fog banks, hill fires and extent of urbanization in southern china
圖像廊展示在亞太區拍攝到的典型衛星圖像,題材包括大范圍的自然災害,如臺風、水災及沙塵暴等,以及其他有趣的現象,如霧、山火及中國南部的都市發展等。Abstract : according to the observation of the number concentration spectrum and the mass concentration of atmospheric aerosol, tsp and its particle size distribution, micrometeorology, and the solar spectroscopic radiation, even the neutron activation treatment of sand dust samples in helan mountainous area, the formation law of sandstrom, dust and sand blowing weather and the characteristics of climatic variation in this area and the influence of helan mountain are counted and analysed
文摘:利用賀蘭山地區沙塵暴歷史資料和綜合觀測資料,對大氣背景、浮塵、揚沙和沙塵暴發生期間的大氣氣溶膠數濃度譜、質量譜、大氣總懸浮顆粒( tsp )及粒徑分佈、微氣象、分光日射觀測以及沙塵樣品進行中子活化處理,分析了該地區浮塵、揚沙和沙塵暴形成規律,氣候變化特徵和賀蘭山的影響。According to the observation of the number concentration spectrum and the mass concentration of atmospheric aerosol, tsp and its particle size distribution, micrometeorology, and the solar spectroscopic radiation, even the neutron activation treatment of sand dust samples in helan mountainous area, the formation law of sandstrom, dust and sand blowing weather and the characteristics of climatic variation in this area and the influence of helan mountain are counted and analysed
利用賀蘭山地區沙塵暴歷史資料和綜合觀測資料,對大氣背景、浮塵、揚沙和沙塵暴發生期間的大氣氣溶膠數濃度譜、質量譜、大氣總懸浮顆粒( tsp )及粒徑分佈、微氣象、分光日射觀測以及沙塵樣品進行中子活化處理,分析了該地區浮塵、揚沙和沙塵暴形成規律,氣候變化特徵和賀蘭山的影響。In the database establishment of the sandstorm and application, the information remote sensing of the sandstorm is solved and translated and monitored, sandstorm climate origin cause of formation and prewarning of sandstorm is it predict comprehensive research and development and application of technology respect in at home leading competence to predict, having improved the prescroption predicted in sandstorm prewarning greatly, obviously improving the pilosity area of sandstorm of our country will predict competence and public service ability to the prewarning of the sandstorm
在沙塵暴數據庫建設與應用、沙塵暴信息遙感解譯和監測、沙塵暴氣候成因以及沙塵暴的預警預報預測綜合技術的研發和應用等方面處于國內領先水平,極大地提高了沙塵暴預警預報的時效性,明顯提高了我國沙塵暴多發區對沙塵暴的預警預報水平和公共服務能力。The diagnostic analysis for the sandstorm process on the base of height, temperature, pressure and wind etc output from the model shows that the upper cold trough, low - level wind shear, surface cold anticyclonic ridge, mesoscale cyclone and cold front are the main synoptic systems, surface cold anticyclonic ridge and cold front provide condition of wind force to occurrence of the sandstorm weather, the strong mesoscale cyclone before front makes pressure gradient before and after cold front obviously strengthen, moreover, and it increases obviously the temperature of the controlled area, as a result, the updraft movement caused by convergence before front strengthens
500hpa強鋒區、 700hpa切變和鋒前中尺度系統的強弱及位置變化是沙塵暴天氣發生發展到減弱的直接原因。地面冷高壓、地面氣旋及冷鋒是造成本次沙塵暴天氣的主要地面天氣系統。地面冷高壓及冷鋒為沙塵暴天氣的發生提供了風力條件,而中尺度氣旋使冷鋒前後氣壓梯度明顯增強外,又使所控制的區域增溫明顯,使鋒前輻合上升運動加強,為沙塵暴天氣的發生提供了熱、動力條件。Dust storms extensively affecting the northeastern part of china
中國東北部廣泛地區受到沙塵暴的影響。In early 2001, there were strong winds, flying dust, flying sand and sandstorms in hexi corridor and part of inner mongolia, which influenced part of the north china, including beijing
2001年年初,河西走廊、內蒙古部分地區出現大風、浮塵、揚沙和沙塵暴天氣,並影響到包括北京在內的華北部分地區。A large area of bare sandland distributed in beijing and its surrounding areas is one of sand source areas which contributes to high - frequent sand storms in beijing in recent years, whereas increasing of surface coverage condition is one of effective measures to lessen local blown - sand activities
摘要北京及其周邊地區分佈的大量裸露沙荒地是北京近年來沙塵暴頻發的主要沙源之一,而增加其地表覆蓋狀況則是遏止就地揚沙起塵的有效措施之一。Conservation tillage is an effective method to prevent soil from wind and water erosion in northern arid regions of china
該地區採用保護性耕作技術,可以有效地抵禦春旱、控制風蝕、防治沙塵暴、提高產量和培肥地力。The contrast analysis for the vertical distribution feature of the simulated physical quantities such as vorticity, divergence, vertical velocity. spiral degree etc suggests that there are a good disposal among the various physical quantities fields in the different stage during the period of sandstorm development, and reveals that the dynamic mechanism of the forming, developing, decreasing of the sandstorm weather and trigger and indication effects of the micro - mesoscale systems and secondary vertical circulation to the occurring and developing of sandstorm in northwest area
對渦度、散度、垂直速度、螺旋度等物理量的水平和垂直分佈特徵進行對比分析,發現各物理量場在沙塵暴發展的不同時期有著很好的配置,揭示出西北地區沙塵暴天氣的形成、發展、消弱的物理機制和中小尺度系統、次級垂直環流對沙塵暴天氣發生發展的觸發和指示作用。沙塵暴區上空螺旋度垂直分佈為高層負值,低層正值,螺旋度大小的演變與沙塵暴的出現有一定的對應關系。Overgrazing along road corridors in dry regions of pakistan and china results in erosion and land - slides, as well as dust storms, it said
此外,巴基斯坦與中國乾燥地區廊道的過度放牧,將會導致土石流及侵蝕,同樣也會發生沙塵暴。Through the thermodynamic analysis for the sandstorm weather according to the simulated potential temperature, potential vorticity field, it is found that this sandstorm weather occurred in the condition of the atmospheric stratification stability, the area of the high potential temperature value and the potential temperature gradient have a good corresponding relationship with the surface cold air and cold front, so are the strength of potential vorticity and the different developing stage of sandstorm
利用輸出的位溫、位勢渦度場,對沙塵暴天氣進行熱動力條件分析,發現本次沙塵暴天氣發生在大氣層結穩定狀態下,位溫大值區及位溫梯度與地面暖低壓的強弱和移動有著很好的對應關系,位渦的水平分佈特徵和強弱變化對沙塵暴的出現時間和落區有一定的指示意義。By using the psu / ncar mm5 model, we made a numerical simulation about the severe sand - dust storm that occured in the north china on 20march in 2002
20 」強沙塵暴天氣過程進行了數值模擬,並利用模式輸出的各物理量對沙塵暴進行診斷分析,得出了華北地區沙塵暴的形成、發展機制。According to the source areas, the sand - dust storms are classified into two types : the inner source and the outer source sand - dust storms. more than half of the sand - dust storms affected china came from mongolia
根據沙塵暴的起源,可將發生在我國的沙塵暴天氣過程分為境外源區和境內源區,影響中國的沙塵暴天氣有七成起源於蒙古國。Using the actual data as initial field, this paper simulates numerically the weather pattern, wind field and temperature of the strong sandstorm in northwest area during april 8 - 9, 2001 and the simulation results are very good
本文以實況資料作初始場,對西北地區2001年4月8 9日強沙塵暴天氣過程的天氣形勢、風場和溫度場進行數值模擬,模擬效果比較理想。Sandstorm disastrous weather in northwestern region
試談西北地區沙塵暴災害性天氣分享友人