查询词典 rainfall

The chemical component of rainfall may be regarded as catalyst to further accelerate soil acidification.

酸沉降的化学组成对酸性土壤的进一步酸化起着催化剂的作用。

While indirect assimilation experiment is better than that of non-assimilation one in rainfall center, the former appears positive role.2 Radar observations direct assimilation experiments: By means of ARPS-3DVar and ADAS (ARPS Data Analysis/Assimilation System), CINRAD observations are assimilated only with NCEP reanalysis data for the forecast of rainstorm. Results show that meteorological element fields are improved observably by assimilation experiments.

但同化实验对于主要降水中心的反映仍然比非同化实验好得多，对于初始场调整、模式预报仍然起到了积极作用。2雷达资料直接同化方面：以夏季暴雨为研究对象，在仅有NCEP资料的情况下，通过ARPS-3DVar和ADAS同化系统直接同化多普勒雷达资料可以对气象要素场产生显著影响和改善。

While indirect assimilation experiment is better than that of non-assimilation one in rainfall center, the former appears positive role.2 Radar observations direct assimilation experiments: By means of ARPS-3DVar and ADAS (ARPS Data Analysis/Assimilation System), CINRAD observations are assimilated only with NCEP reanalysis data for the forecast of rainstorm.

以面向雷电预报的雷达、卫星遥感资料同化及其应用为研究目的，利用NCEP资料、新一代多普勒雷达网、FY2C气象卫星、闪电定位仪网、自动气象站等观测资料的诊断、同化模拟以及理论分析等方法，对气象遥感资料的同化设计及其在雷暴天气条件下雷电预测方面的应用进行了综合研究和初步分析。

Furthermore data assimilation experiments are conducted with MM5 Adjoint-model Assimilation System made by adjoint codes. With a case of heavy rainfall taking place from 00h July 23 to 00h July 24,2002, several numerical simulation experiments of different schemes are performed. The results are as follows. MM5 Adjoint-model Assimilation System not only can improve the initial field effectively and promote the coordination with the model but also can enhance the forecast on the precipitation and other elements. The assimilation of CDW has an improvement on quality of upper wind. The effect of direct numerical simulation with utilizing the CDW to amend the initial field gains the advantage over the one not.

结果表明，MM5伴随模式同化系统能有效改善初始场与模式的协调能力，提高模式对于降水场和其它要素场的预报；使用云导风资料修正初始场后直接模拟的效果比未使用时直接模拟的效果要好，对部分区域的强降水预报精度有一定程度的改善；使用伴随模式同化系统后，加入云导风资料的同化试验对其它要素的改善与直接同化常规资料的效果相比，改善优势不明显，但从各要素的误差来看，对于风场的改善最好。

The warm and wet air before an eastward upper trough from Hexi creep up on the Wedge of cold air, and produce the heavy rainfall.

在暖湿空气势力较强的前提下，在回流冷空气与暖湿气流相遇的辐合带中激发出中尺度系统。

Traditional Double-cycle infiltrator can not simulate natural rainfall because of the whole process,overlooked the role of rainfall causing raindrop hit penetration impact is a "static" in a state of infiltration,but not for the slope,the limitations are considerable.

传统的双环法由于无法模拟天然降雨入渗的全部过程，忽略了雨滴击溅作用对降雨入渗的影响，是一种&静止&状态下的入渗，而且不能用于坡地，局限性比较大。

According to simulated result of slope depending on time's changing, we learn that the slope factor of safety will change which depends on rainfall infiltration. Factor of safety of crack slop has much changing than F.S. of flat slop by raining 12 hours to accumulate the rainfall of 100mm.

本研究在边坡安全时变分析之模拟结果显示，边坡之安全系数值会因降雨入渗过程而有所改变，且同样降雨12小时累积雨量100mm情况下，有裂缝坡顶场址安全系数值较平面坡顶场址变化大。

Winter sea-ice extent of Davis Strait which is strong information for July rainfall of North China is negatively correlated with July rainfall of North China.

冬季戴维斯海峡海冰面积与华北7月降水在年际变化尺度上有明显的反相关关系。

The features of the interannual relationship between winter sea-ice extent of Davis strait and rainfall of North China and the interdecadal variability of its interannual relationship are analyzed by Using UK/GISST sea-ice data-set of Hadley , monthly 500Hpa height field of NCEP/NCAR reanalysis data and monthly rainfall data from 160 stations in China.

选用英国Hadley气候研究中心的UK／GISST海冰面积指数资料集、NCEP／NCAR逐月再分析资料500Hpa位势高度场资料和中国160站降水资料，分析了冬季戴维斯海峡海冰面积变化与华北夏季降水年际关系及其年代际变化。

The apparent characteristics of interdecadal variability of interannual relationship between winter sea-ice extent of Davis Strait and Summer, July and August rainfall of North China are: The strongly negative correlation between winter sea-ice extent of Davis Strait and Summer rainfall of North China turns into bad correlation.

冬季戴维斯海峡海冰是影响华北7月降水的&强信号&。

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。