To gauge precipitation, they looked at tree ring widths in lower-elevation oaks, which grow faster in years with higher levels of rainfall.
而为了测定降水量，他们则对长在低海拔地区的栎树的年轮宽度进行研究，因为这些树在雨水比较充沛的年份长得更快。
The rainfall measurements are from the Multisatellite Precipitation Analysis, which is based on data from the Tropical Rainfall Measuring Mission (TRMM) satellite.
对降雨量的统计来自多卫星降水分析，基于TRMM（ Tropical Rainfall MeasuringMission热带降雨测量任务）卫星的数据。
A 5 to 10 percent drop in rainfall in southwestern North America, southern Africa and the Mediterranean, among other precipitation changes.
北美洲的西南地区、非洲南部和地中海地区降雨量会减少百分之五到十，其他地域的降雨量也会有所变化。
Catch basins can help you deal with unusually large amounts of precipitation and rainfall, and in fact, most building codes call for them when large or heavily sloped properties are involved.
赶上盆地可以帮助您与降水量和大量降雨异常交易，而事实上，大多数建筑规范要求他们在大型或涉及严重倾斜的特性。
They also modified the precipitation at the transplant sites based on altered rainfall estimates.
根据预期的降雨量变化，他们还改变了移植地的降水量。
Rainstorm: generally refers to 24 hours of accumulated rainfall of up to 50 mm or more, or within the cumulative precipitation of up to 30 mm or more precipitation within 12 hours.
暴雨：一般指24小时内累积降水量达50毫米或以上，或12小时内累积降水量达30毫米或以上的降水。
Similar analyses have been done for today's extreme rainfall patterns (drought followed by deluge, not precipitation spread out evenly) and the retreat of arctic sea ice.
气候学家们还以同样方法模拟了当今发生的极端降雨型(干旱后随之而来的是洪水，而不是均匀分布的降雨)以及北冰洋的融冰现象。
When the operating time is constant, the plastic film cover of precipitation is decided by the rainfall duration and daily evaporation.
当操作时间一定时，塑苫的降水量由降水持续时间和日蒸发量决定。
The extent of vertical erosion increases with precipitation, rainfall intensity and soil infiltration rates, and different soil has different critical rainfall amount.
垂直侵蚀随降雨强度、降雨历时的增加而增加，不同土壤的侵蚀临界降雨量不同；
Seasonal changes in precipitation across the country, rainfall distribution is very uneven season. Precipitation in most parts of the country concentrated in the May to October.
降水的季节变化我国各地降水量季节分配很不均匀，全国大多数地方降水量集中在五月到十月。
Remote measurements of rainfall intensity and areal precipitation by using weather radar are a problem that meteorological scientists have researched with an effort.
利用天气雷达遥测降雨强度和区域降雨量的大小一直是人们努力探索的课题。
Based on the precipitation database collected from 1950 to 1985 of 98 rainfall stations in Chongqing, we analyzed the precipitation features of Chongqing through temporal and spatial distribution.
根据对重庆市98个雨量站从1950年至1985年的降水资料的分析，初步探讨了重庆市年降水量的时空分布规律。
Therefore, it can be concluded that permeating coefficient of precipitation is mainly decided by the section character of garbage body and no relation to rainfall.
因此，可以认为入渗系数主要取决于垃圾体剖面的结构特征，与降雨条件关系不大。
Surface water mainly from precipitation and off the water, precipitation, rainfall in the main flood season, water comes mainly from the old passenger Shahe, Song eight Tuan, sand east of the trunk.
地表水主要来源于降水及客水，降水以汛期降雨为主，客水主要来源于老沙河、宋八疃、沙东干渠。
Precipitation is the most important triggering factor of debris flow occurrence. While other factors attain some extent and enough rainfall is possessed, debris flow disaster may occur.
降雨是泥石流形成最重要的激发因素，当除降雨以外的其它泥石流形成因素达到某种程度时，一旦有足够的降雨量，就可能发生灾害性泥石流。
The urban rainfall runoff pollution originates from the precipitation, the urban surface and the drainage system.
城市降水径流污染中的污染物主要来自降水、城市地表和排水系统。
The model can reasonably reproduce the daily precipitation events over East Asia for the summer of 1991, especially in the Yangtze-Huaihe valley where the anomalous rainfall occurred.
试验结果显示，该模式能够合理地模拟出1991年夏季东亚地区的逐日降水过程，特别是在江淮流域发生的异常降水事件。
It's expected to hover around the coastal regions for a while. The tropical storm brings strong rainfall, and precipitation is expected to last through Friday.
预计它将在沿海地区停留一段时间。这个热带风暴带来了强降雨，降水预计持续到星期五。
This paper is concerned with the characteristics of dekad precipitation in China based on dekad rainfall data of 188 stations from 1955 to 1998.
本文利用我国188个测站1955 - 1998年的逐旬降水资料，对我国的旬降水特征进行研究。
The interdecadal variation of rainfall intensity shows that the regional mean days of small precipitation and middle precipitation have a decreasing trend over the upper reaches of Yangtze River.
长江上游降水强度也存在年代际变化，区域平均的弱降水天数和中等强度降水天数都呈现减少的趋势。
In July 21st, Beijing heavy rain to heavy rain weather, the average rainfall of 170mm, since 1951has complete meteorological record the maximum precipitation.
7月21日，北京大雨到暴雨天气，平均降水量为170mm，自1951年以来有完整气象记录的最大降水量。
The asymmetrical radar echo structure of typhoon exerted impact on its motion and precipitation distribution. The short-time strong rainfall might occur easily in the sudden turning of typhoon.
台风形成的不对称结构影响其移向和降水分布，路径突转时极易产生短时强降水。
The rainfall spatial distribution simulated by GRAPES is better than that simulated by MM5. However, the maximum values of the precipitation center are much less than the results of MM5.
但是在降水中心的分布以及降水量级上与实况仍有一定程度的差异，GRAPES模式模拟出的总体落区略优于MM5，而MM5对降水量级的预报好于GRAPES。
A function relationship between the daily rainfall over a large area and its area has been researched using the observed precipitation data in China in recent 40 years.
根据中国近40年逐日降水观测资料，分析了大范围空间域上不同等级日降水量与其占有面积的函数关系。
On the other hand, not all of the rainfall events can cause soil erosion, precipitation event could lead to soil erosion is called erosive rainfall.
另一方面，并不是所有的降雨事件都能够引起土壤侵蚀，能够导致土壤侵蚀的那部分降水事件被称为侵蚀性降雨。
A conclusion is drawn: (1) the number of precipitation station without data and its position seriously impact on value of areal rainfall;
通过分析比较得出结论：1缺测站点的多少及其所在位置对面雨量计算结果影响很大；
With the rising level of precipitation the correlation coefficient increases rapidly, light rainy days and rainfall relate the worst, storm rainy days and rainfall relate the best.
随着降水等级的上升，雨日与降水量的相关系数迅速增大， 小雨日与降水量的相关性最差，暴雨日与降水量的相关性最好；
The contribution of various weather systems to precipitation varies in different seasons, and the rainfall and the number of rainy days induced by the westerly trough are the greatest.
不同的天气系统在不同季节对降水的贡献有所不同，其中西来槽类的降雨量和降雨日数均居首位，开展人工增雨催化作业机会最多；
In addition, rainfall is almost distributed in mountain area, and performs the precipitation in the windward slope.
此外，台风降雨的落区主要是山区，降水形式是迎风坡降水的特征。
In addition, rainfall is almost distributed in mountain area, and performs the precipitation in the windward slope.
此外，台风降雨的落区主要是山区，降水形式是迎风坡降水的特征。
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