potential temperature meaning in English
位势温度
位温
温位
Examples
- High pseudo - potential temperature along mei - yu front area mainly presented the deep convection of mei - yu area , so there would be a front along each side of the high pseudo - potential temperature , then the pseudo front would appear
有人单从假相当位温场分析锋面结构，结果在假相当位温高值舌区两侧各产生一个锋区，这就产生了虚假的锋区。 - In order to make clear the changing situation about various meteorological element fields during the heavy rain . the diagnostic analysis in three aspects was done in this text : the vapor conditions , in which the difference of the temperature and dew point , relative humidity , vapor flux and the divergence of vapor flux were discussed ; the dynamic and thermodynamic conditions , vorticity , divergence and vertical velocity were analyzed ; the vertical layer condition , which included potential temperature , static stability , convective ( potential ) instability and the vertical profile of eight physical fields over the observatory of shenyang
为了弄清这次暴雨过程各气象要素场的演变情况，分三方面对暴雨的水汽条件(使用了温度露点差、相对湿度、水汽通量和水汽通量散度) 、动力条件(使用了散度、涡度和垂直速度)和垂直层结条件(使用了位温、静力稳定度和潜在不稳定度以及沈阳单站的8个物理量的垂直廓线)等的变化，分别进行了诊断分析。 - 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。 - Wavelengths or scales of surface heterogeneity are less than 20km . simulation results show that cbls do reach a quasi - stationary state correspondent to specified surfaces , after a long enough evolution . in this transition process and after that , horizontal statistics , i . e . mean potential temperature and vertical heat - flux , show profiles little differences to those over homogeneous flat surface . main effect of surface heterogeneity is to increase kinetic energy in cbl and the increase concentrates in the direction of surface heterogeneity . the time of cbl spent to reach its first peak of mean kinetic energy ,
模拟结果表明，在充分长的时间后，边界层达到一种适合于地面条件的准定常态。这种准定常态和向其过渡的过程中，水平平均的边界层廓线性质，如平均位温廓线垂直热通量廓线等几乎与平坦均匀地面的结果相同，或差异极小。地面非均匀性的主要作用是使边界层动能增大，并以地面非均匀性变化方向的动能增加为主。 - Through the thermodynamic analysis for the sandstorm weather according to the simulated potential temperature , potential vorticity field , it is found that this sandstorm weather occurred in the condition of the atmospheric stratification stability , the area of the high potential temperature value and the potential temperature gradient have a good corresponding relationship with the surface cold air and cold front , so are the strength of potential vorticity and the different developing stage of sandstorm
利用输出的位温、位势涡度场，对沙尘暴天气进行热动力条件分析，发现本次沙尘暴天气发生在大气层结稳定状态下，位温大值区及位温梯度与地面暖低压的强弱和移动有着很好的对应关系，位涡的水平分布特征和强弱变化对沙尘暴的出现时间和落区有一定的指示意义。