low-temperature trough 中文意思是什麼

low-temperature trough 解釋
低溫槽
  • low : adj 1 低的;淺的,矮的。 low flight 低飛。 a low temperature 低溫。 low tide [water] 低潮。 The g...
  • temperature : n. 1. 溫度,氣溫。2. 體溫。3. 〈口語〉發燒,高燒。
  • trough : n 1 木盆;馬槽,豬槽;承溜;水筧;洗礦槽。2 (麵包店的)揉面盆,面缽。3 【航海】(深6000米以上的...
  1. 3 in the years of cold spring, the inner mongolia high and the aliushen low are strengthened with the low index of the east asia trough and the negative anomaly center of temperature over northeast china from surface to tropopause while the contrary conditions occur in the years of warm spring

    3 、東北地區出現春季低溫的主要環流特徵是:內蒙古高壓,阿留申低壓的強度加強;阿流申低壓指數以及東亞大槽強度指數減弱,東北地區從地面到對流層頂處在溫度負距平中心內,東北地區春季高溫時則出現與上面相反的變化形式。
  2. 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。
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