西风带

After that, the westerlies will introduce E component to the track to NARI and thus it will be subjected to an accelerated motion towards the NNE/NE.

随后百合将会受到西风带的影响而转向东北偏北至东北移动。

It is found that in summer, the region between the southern edge of the westerlies and the northern margin in the subtropical anticyclone of the West Pacific is a favorable location for strong deep summer convection and MCS development.

夏季汛期降水主要受东亚夏季风的影响，非台风暴雨的出现与夏季风的进退一致。夏季在东亚西风带南缘和西太平洋副热带高压之间的地区，是夏季最有利于深对流和MCS发展的地区。

In summary, moisture variability in ACA and northern Tibetan Plateau has showed major difference from monsoon evolution on various timescales in the Holocene. It is thus proposed that there is a westerlydominated climate model in midlatitude Asia during the modern interglacial period.

据此我们提出，亚洲中部西风带控制区在现代间冰期从数千年到年代际的各个时间尺度上均存在不同于季风区的湿度变化模式，称之为现代间冰期气候变化的西风模式。

But there was exception in some regions with relative wet climate, such as southern Europe, southwest America. The wetter climate in these regions were contributed to strong cold high pressure systems over the ice sheets which forced westerlies shift southward and brought more precipitation and caused high lake level in these regions.

但也有一些地区例外，如欧洲南部和美国西南部由于受到大陆冰流反气旋控制，造成的西风带南迁而引起降水变化，湖泊反映出具有寒冷但潮湿的大湖或高湖面。

In.the summer season,tha advance and retreat of theWestern Pacific pressure ridge(moving from east to west or reversed)is intimatelycorrelated with teh upper westerlies.

但西风带波动较大时，随着西风槽和高压脊的东移，太平洋高压脊便有了比较长时期的和明显的东退和西伸，它的周期一般都在5、6天左右。

During the four years study on the project, we develop a dynamical forecast model that describing the subtropical ridge surface. A new theory on the role of the land-sea thermal difference on the formation of the Subtropical High is advanced. It is concluded that in the summer subtropics over each continent and its adjacent ocean LO, SE, CO, and a double-dominant heating from west to east compose a LOSECOD heating quadruplet. The influence of the Eurasia continent on SH varies according to the seasonal variation. From the ideal numerical simulation it is shown the important role of the Eaiuan continent and the huge topography on the mechanism of formation and mantanence of the SH during the summer. It is verified by the numerical simulation that the extension of the subtropical continent into the tropics greatly enhances the " East Asian monsoon". Through the Rossby energy dissipation theory it is verified that the deep latent convective heating induces the onset of the South China Sea monsoon over the Bay of Bengal. The relationship and mechanism between the precipitaiton over the East Asia and the Subtropicla high is illustrated by the data. It is also found the close phase lock between the east-west shift of the SH and the disturbence of the east wind belt over the tropical troposphere. The interaction between the structure and activity feature of the SH and the Meiyu over the Yangtze-Huaihe river valley is revealed from the data. The numerical simulation verified the impact of the different SH pattern on the path of the typhoon.

本项目的研究发展了描述副热带高压脊面变化的动力模型，提出了夏季副热带地区四叶型非绝热加热分布型及相应环流拼图的创新理论；明确了大陆尺度的海陆热力差异在副热带高压形成中的作用；指出欧亚地形对副热带高压和气候的影响随季节变化而变化，通过数值试验证明春季青藏高原的感热加热对亚洲夏季风的爆发地点起了"锚定"的作用，进一步证实了副热带高压断裂和亚洲夏季风的最早爆发地点发生在孟加拉湾东岸；利用Rossby波能量频散理论证明了孟加拉湾深对流潜热释放诱导南海季风爆发的机制；揭示了东亚季风降水的季节内变化与西太副高的关系及机理；揭示了西太副高与东西风带中扰动之间的相互作用过程，指出西太副高的东西活动与热带对流层上空东风带扰动和中纬度西风带扰动的移动和锁相密切相关；研究了夏季淮河流域梅雨期间副高结构和活动特征及其与江淮暴雨的相互作用；验证了不同副热带高压形态对台风路径的不同影响；通过数值试验证明了欧亚大陆和青藏高原等大地形对副热带高压形成和维持的重要作用。

Between t+24 and t+36, NARI will cross the ridge axis, and will be subjected to the westerlies to induce a recurvature.

预料百合将会在 24 至 36 小时之后横过副热带高压脊的脊线，随后受西风带的影响转向东北移动。

"These dust storms are some of the largest in the last 70 years," said Nigel Tapper, an environmental scientist at Monash University,"Ten very dry years over inland southern Australia and very strong westerlies have conspired to produce these storms."

"这次沙尘暴是70年以来最严重的沙尘暴之一"，莫纳什大学的环境科学家Nigel Tapper说，澳大利亚内部十年以来的干旱和强劲的西风带共同导致了这场沙尘暴。

The APW in summer is less than 25 mm which is the least limit value of monsoon areas.This means that Xinjiang is not affected by monsoon.The geographic distribution of APW is adverse with that of precipitation,videlicet,higherAPW values corresponding to lower precipitation values.With the effects of westerly winds,the APW mode presents as an uniform change within Xinjiang area and has a stable distribution.It is very different from Xinjiang rainfall mode which changes a lot spatially.As mentioned above,there is no obvious change during 1961～2000,this indicates that APW is not a dominant factor determining precipitation,it is the result of dynamic condition,water vapor convergence and other causes.

APW的地理分布与实际降水量分布相反，其最大区域却为降水量最小区，受西风带影响，新疆APW模态主要表现全疆一致变化，分布稳定，与降水模态分布差异性大有显著不同，且近40年来无显著变化趋势，表明决定新疆降水差异的根本原因不在于水汽的多少，而是由降水产生的动力条件、水汽辐合和其它因素差异决定的。

It is found through analysis of the shear line over Qingzang Plateau from May to August in 1979 by the use of scientific experimental data that the plateau shear line can be generated respectively in the easterlies, in the westerlies and in the neighourhood of the zero line between easterlies and westerlies.

切变线；无风带；西风带；毫巴；东风带；大尺度环流；本文利用科实资料对1979年5—8月青藏高原切变线进行分析后发现：高原切变线可以分别在东西风带分界的零线附近、西风带中和东风带中产生。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。