下沉运动 meaning in Chinese
negative movement
Examples
- The compensating descending motions normally occur over a much larger area than the ascending motion .
补偿下沉运动通常出现在比上升运动大得多的区域上。 - Climatic mean map , it is further confirmed that it s a good approach to retrieve the equatorial zonal circulation by using the ir indicate ascending branch and wv indicate descending branch channels . the definition of the index of zonal circulation with the olr and fwv are presented and the 17 years mean annual and seasonal equatorial circulation are drawn . the climatic characteristics of the equatorial zonal circulation are analyzed in detail . consequently the fore results of the other observation are corrected
通过波耳兹曼公式换算得到的6 . 7m水汽辐射通量密度，以便于与olr比较与ncep再分析的500hpa的年气候平均图进行比较，分析其异同，进一步证明了用卫星观测的红外，水汽双通道olr表示上升运动， fwv表示下沉运动去反演纬向垂直环流是一个极好的途径。 - A transverse secondary circulation is produced by the coupling of high and low jets , while the sinking branch of the secondary circulation providing the dynamic conditions for the dry intrusion air . during the period of the heavy rain process , dry intrusion descends southward along the intense constant potential temperature lines , which promotes the lower cyclone . in addition , the pouring of upper - level dry air not only decreases ground temperature behind the front but also increases surface pressure and velocity
由于高、低空急流耦合，在高空急流中心左侧产生的下沉运动和高空急流中心右侧、低空急流左侧产生的上升运动在锋面上形成一次级环流，次级环流的下沉支运动为对流层高层干空气和高位涡的下传提供了动力条件；进一步研究发现，干侵入沿相当位温密集带向南向下伸展，引起对流层低层气旋性涡度的发展；此外，高层干冷空气向下注入，导致地面温度降低、气压升高、风速加大、低层辐合增强、上升速度加大，从而促进了新的对流运动，引起降水增强。 - In 1999 , the dipole existed in between the okhotsk high and the depression in the north of northeast china , thus the okhotsk high became active and maintained , the subh was located to an area quite further south than usual . the high persisted in the east region of nw china , the cold air flowed to the mid - lower reaches of the yangtze river along the high . in the east region of nw china , air steam under troposphere was strong sinking motion , and formatted the negative vorticity region , the vapour flux divergence was divgence . lt was apparently that the rain could n ' t occur in the eastern portin of nw china . in 2000 year , okhotsk high was very weak or did n ' t exist in , there was high in the east asia - japan , the subh is located to an area further north than usual . in the east region of nw china , the trough maintained , air stream under troposphere was strong ascending motion , the cycolonic circulation was prevailing , the vapour flux divergence was intensive convergences the rain easy happened in the east areas of northwest china
4多梅雨1999年鄂霍茨克海阻塞高压与我国东北北部低压形成偶极子，使得阻塞高压稳定少动，西太副高位置偏南，西北地区东部持续受高压控制，冷空气沿此高压流经长江中下游地区上空；在西北地区东部对流层中下层气流下沉运动较强，呈反气旋涡度，水汽通量散度辐散，不利于西北地区东部降水。空梅雨2000年相反，鄂霍茨克海高压减弱甚至不存在，东亚-日本为高压，西太副高位置偏西偏北，西北地区东部处于西风槽中，对流层中下层气流上升运动增强，盛行低压环流，水汽通量散度强烈辐合，有利于降水生成。