降水分布

In terms of the synoptic environment and precipitation characteristics, there were some common characteristics in these two cases. For instance, warm and moist air with the conditional instability atmosphere in the lower troposphere, it was associated with the highest equivalent potential temperature gradient and strong moisture contrast to below 700 hPa. The lower-level convergence was the major produced mechanism of MCS and the low-level southwesterly flow generated convective instability.

从综观环境条件与降水特徵显示，两个案共通特徵包括（1）低对流层属暖湿条件性不稳定大气，（2）最大相当位温梯度以及水气梯度分布於700 hPa以下，（3）低层辐合均为个案中MCS之重要激发机制，（4）有明显低层西南喷流，大气呈现对流性不稳定状态，（5）中层短波槽线的移入，以及（6）高层辐散分流场的存在，提供MCS发展的有利环境条件。

The effects of friction in surface layer on the structure of front and the frontogenesis in boundary layer, the interaction of orographic disturbance with front, the influence of diabatic process and moist process on the frontogenesis are investigated. Second, the occurrence and development of frontal rainbands have been studied extensively through the observational and theoretical approaches near half-century. However, there are still some problems needing further investigations because of the complication of the precipitation process.

关于锋面降水的产生和分布问题，近半个世纪以来，国内外气象学家进行了大量的观测和理论研究，但是由于问题的复杂性，至今仍有许多问题不清楚，我们利用非静力模式对变形场锋生条件下锋面雨带的发生、发展和演变过程进行了数值模拟和分析。

The hydrometeor structures obtained from other three databases are similar to those from Database_m12 except that the contents of those hydrometeors are lower generally.

使用另外3个数据集反演的4种水凝物垂直结构与使用Database_m12的结果在垂直分布结构基本一致，而可降水的含量偏低一些。

So the systematically study of loess landslides are emergently needed. Based on detailed investigation and survey of characteristics of environmental geology, engineering geology, hydrometeorology in Tongchuan, the distribution characteristic and the outer, inner factor of loess landslides are studied; and it is concluded that the rainfall and artificial engineering activity are the leading causes of loess landslide among various factors. Through plenty of tests of soil samples, it is researched that the loess"s physical mechanics characteristics, the loess landslide"s formation mechanism and kinematics mechanism.

本文在详细调查和勘察铜川地区的环境地质、工程地质及气象水文特征的基础上，对黄土滑坡的分布特征和滑坡形成的内外因素进行了深入剖析，认为在各种影响因素中，大气降水和人类工程活动是铜川黄土滑坡的最主要的诱发因素；在采集大量的土样并进行试验的基础上，对黄土的物理力学特征和黄土滑坡形成机理、运动学机理进行了研究，推导出了滑坡运动机理中的孔压参数A_D、B_D分别与孔隙比和饱和度的统计关系。

The results show that the variation of daily and seasonal land and sea breeze obviously affects the spatial and temporal distribution of the local temperature, precipitation, moisture, and cloud condition.

发现海陆风明显的季节变化和日变化时当地气温、降水、湿度及天空状况等气象要素的空间和时间分布影响显著。

After analysis of the data, it can be seen that, in tritium distribution in the precipitation manifestes seasonal, latitudinal and continental effects.

通过整理分析资料可看出，我国大气降水中的氚分布具有季节效应、纬度效应、大陆效应。

According to the practical hydrology and soil conditions of research site, an auto-recording lysimeter is assembled to research spatial and temporal distribution laws of soil moisture.

调查分析了暗针叶林生态系统中林下地被物层各组分（森林粗木质残体、苔藓和枯落物）的时空分布规律以及对降水的蓄持、传输效应。

The results showed that the distribution of summer monsoon precipitation was affected by latitude, altitude and other factors.

研究表明藏北高原夏季风降水的分布是纬度效应和海拔高度效应综合作用的结果。

The spatial distribution feature of rainfall trend for global land seasonal and monthly rainfall indicates that the rainfall in global land areas is characterized by the negative trend variation.

分析了全球陆地6-8月及其逐月降水趋势的空间分布特征。

The main spatial and temporal distribution features of pentad precipitation in rainy season from 1991 to 2000 over Yunnan Province (84 stations) are analyzed by means of the principal component analysis method. The features of lowfrequency fluctuation are analyzed by the noninteger technique of power spectrum. The relation between lowfrequency fluctuation and El Nino and precipitation in rainy reason of Yunnan Province are studied.

应用主分量方法分析了云南省84站1991～2000年雨季(5～10月)逐候降水量的主要时空特征，并用非整波技术分析了所提取的第1，第2主分量频谱分布的低频振荡特点，同时分析了低频振荡现象与El Nino事件及云南雨季降水多，少之间的关系。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。