polar vortex 中文意思是什麼
polar vortex
解釋
極地渦旋-
The weather helps to break up a pattern of strong, cold winds called the circum polar vortex
這樣的氣候有助於打破一個被稱作環極渦旋的強盛的寒冷風場。 -
Firstly, this paper designs a polar coordinate barotropic vorticity equation semi - spectral model and a quasi - geostrophic grid model in order to research the propagation of vortex rossby waves and tropical cyclone intensity change entirely
本文首先設計了一個極坐標系正壓渦度方程的半譜模式、一個準地轉格點模式對渦旋rossby波傳播和熱帶氣旋強度變化進行了較為系統的研究。 -
The main factors affecting the precipitation in the first stage of rainy season in fujian province are pacific sst in preceding june, the western pacific subtropical high area index in preceding may, the asia polar vortex area index in preceding september, the eurasian meridional circulation index in preceding april to june, the 500hpa height in northwest asia in preceding spring. the main factors affecting the precipitation in the second stage of rainy season in fujian province are pacific sst in preceding july and august, the northern hemisphere polar vortex area index in january in same term, the pacific polar vortex intensity index in preceding september, the 500hpa height in south europe in preceding summer
（ 2 ）影響福建省前汛期的主要因子有：前期6月太平洋海溫場、前期5月西太平洋副高面積指數、前期9月亞洲區極渦面積指數、前期4 - 6月歐亞徑向環流指數和前期春季亞洲西北部500hpa高度場；影響后汛期的主要因子有：前期7月太平洋海溫場、前期8月太平洋海溫場、同期1月北半球極渦面積指數、前期9月太平洋區極渦強度指數和前期夏季歐洲南部500hpa高度場。 -
( 4 ) flood season precipitation anomalies has a good correlations with southwest and southeast summer monsoon, polar vortex, west wind trough and west pacific high ( 5 ) the ssta anomalies of west pacific key regions combine with south atlantic key regions has a good predict to the flood season precipitation anomalies in liaoning areas
遼寧夏季多雨水汽來源於西南夏季風和我國東部海域，汛期降水異常與西南、東南夏季風，極渦，西風槽以及西太平洋副高活動關系密切。西太平洋和南大西洋海溫關鍵區冷暖水年結合對遼寧汛期多少雨年有很好的指示作用。 -
The rsults are as follows : ( 1 ) precipitation shows the decreasing trend and remarkable interannual and interdecadal variations in flood season in the last 44 years. ( 2 ) precipitation anomalies in flood season have a good correlations with southwest and southeast summer monsoon, polar vortex, west wind trough, the subtropical high over west pacific and south asia high
（ 2 ）遼寧汛期水汽來源於西南夏季風和我國東部海域，汛期降水異常與低空的西南、東南夏季風、中空的極渦、西風槽、西太平洋副熱帶高壓活動及高空的南亞高壓關系密切。 -
Especially, t - test shows that significance of the asia polar vortex, zonal circulation index, the most northern extension edge of subtropical high of northern west pacific and the warm pool of pacific ocean, are at 95 % （ 90 % ）
特別地，亞洲極渦、緯向環流指數、西太平洋副熱帶高壓北界位置及太平洋暖池的海表面溫度等因子均通過了95 % （ 90 % ）信度水平檢驗。 -
Its warming was the higher in china, ( 5 ) the current atmosphere circulation anomaly is the current factor influenced the winter air temperature in the north - east china, and it includes siberian high anomaly, the east asian trough anomaly, the acreage of polar vortex anomaly, the asian winter monsoon anomaly and the anomaly of the west - wind circulation in east - asian
（ 4 ）東北地區冬季增暖趨勢與中國大部分地區是一致的，是增暖最顯著的地區之一。 （ 5 ）影響東北冬季氣溫異常的同期因子是環流異常，它包括西伯利亞高壓、東亞大槽、東亞冬季風、極渦面積、東亞西風環流指數等的異常。 -
3. the relation between the transition dates in middle stratosphere and the important systems in troposphere such as polar vortex and the subtropical high in west pacific
臭氧總量異常與中平流層轉型日期異常之間為反相關關系，臭氧總量偏高（低） ，流型轉型日期偏早（晚） 。 -
3 ) the upper air stream circumstances along with strong ssw event mainly was separated to three kinds : the northern advance of aleutian high pressure, the northern advance of north atlantic high pressure, the northern advance of aleutian high pressure and north atlantic high pressure at the same time. their final effect was to make polar region vortex collapse and to increase polar region temperature
3 ）伴隨強ssw事件的高空環流形勢主要有3種：阿留申高壓北進，北大西洋高壓北進，北大西洋高壓和阿留申高壓共同北進，它們的最終效果是使極渦崩潰、極區增溫。 -
4, the summer rainfall anomaly in northeast china bears close correlation with the atmospheric circulation backgroud. while cold air in middle and high levels of troposphere is active in wet year with the positive anomalies over high - latitude and polar area, the active longwave ridge, the anomalous long - wave ridge in northeast china and inner - mogolia as well as the northward and eastward of the polar vortex, the contrary is in the dry year in northeast china
4東北地區夏季降水異常與大氣環流背景有密切的關系，東北地區夏季多雨年在對流層中、高層冷空氣比較活躍，高緯和極區主要由位勢高度的正距平所控制，貝加爾湖以北的地區長波脊較為活躍，在東北地區和蒙古地區有異常的長波槽發展，極渦位置偏北、偏東；而在東北地區夏季少雨年則容易出現與上述相反的異常環流形式。 -
( 2 ) it indicates the close relationship between wet, dry phase and the position, amplitude of 500hpa high field and subtropical high. and there are close relation with polar vortex, south asia high field
（ 2 ）西北地區多、少雨與500hpa高度場和副熱帶高壓的位置和強弱密切相關，並且與極渦、南亞高壓關系密切。 -
For this reason, the aao index ( aaoi ) is defined as the normalized zonal mean slp difference between 30 s and 65 s. the result indicates that when aao is stronger in boreal summer, both the antarctic vortex ( av ) and the polar westerly jet ( pwj ) are stronger while the subtropical westerly jet ( stwj ) is weaker, and vice versa
研究發現，當夏季南極濤動偏強時，南極極渦和高緯度的西風急流強度都偏強，但中低緯度西風急流的強度偏弱;反之，當南極濤動偏弱時，南極極渦和高緯度西風急流強度將偏弱，中低緯度西風急流強度將偏強。 -
( 5 ). winter air temperature in north china has important relationship with the mongolia high anomaly, the east asian trough anomaly and the acreage of polar vortex anomaly
（ 5 ）華北冬季氣溫與蒙古冷高壓異常、東亞大槽異常、極渦面積異常密切相關。
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