northern middle latitude 中文意思是什麼
northern middle latitude
解釋
北半球中緯度-
( 4 ) in summer, tropic west pacific ssta decadal change infect precipitation decadal change in south and north of changjiang river maybe by : positive ssta in tropic west pacific weaken the summer monsoon circulation, lead more precipitation in south of changjiang river and less precipitation in north of it, vice versa ; middle north pacific ssta decadal change infect precipitation decadal change in mid - down valley of changjiang river maybe by : when ssta is negative in middle north pacific, the height field in tropic rises obviously, the subtropical high strengthens and extends westward, the northern limit retreats southward, leads upper trough retreats northward and move eastward, meiyu front moves northward, then leads more precipitation in mid - down valley of changjiang river, vice versa ; middle northwest pacific - low latitude mid - east pacific infects precipitation in north china possibly by change the activity of northeast china cyclone
（ 4 ）熱帶西太平洋ssta年代際變化影響夏季中國長江南北降水年代際變化的可能機制是熱帶西太平洋海表溫度正（負）異常減弱（加強）東亞夏季風環流，從而使江南降水增加（減少） ，江北降水減少（增加） ；夏季中部北太平洋ssta年代際變化影響中國長江中下游地區夏季降水年代際變化的可能機制是中部北太平洋海表溫度負異常，將導致熱帶地區高度場普遍增高，副高加強西伸，副高北界南退，致使高空槽北縮東移，梅雨鋒西移北進，中國長江游中游、中卜游降水增多，反之亦反；夏季中高緯西北太平洋一低緯中東太平洋反向距平分佈結構影響中國東北降水的可能機制是低緯中東太平洋海表溫為負異常。 -
On comparing the composition of its flora with some neighbouring floras, gmnr is most similar to lianhua mountain and dinghu mountain, the representative flora of the " southern subtropical region ". the tropical elements in gmnr flora are obviously less than those in the jianfengling flora which is the " northern tropic region ", and the temperate ones less than those in the lushan mountain flora and the jiulong mountain flora, the representative flora of the " middle subtropical region ". as shown by the coefficient of similarity of flora and the clustering analysis of geographical elements, gmnr flora has a close relationship with others in guangdong, such as the flora of lianhua mountain, dinghu mountain, qimuzhang and chebaling, and the influences of tropic elements on those flora become less and less with the latitude ' s increase
本文通過區系相似性系數比較和地理成分聚類分析，認為古兜山與蓮花山、鼎湖山、七目樟和車八嶺植物區系的聯系都很密切，廣東植物區系受熱帶成分的影響有從低緯向高緯、由沿海到內陸逐漸降低的趨勢：古兜山植物區系受熱帶成分入侵最為強烈，蓮花山和鼎湖山受熱帶成分的影響有所降低，七目樟植物區系受熱帶成分的影響進一步降低，車八嶺植物區系受熱帶成分的影響最弱。
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