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。

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Ultrasonic rain gauge rised up the measuring range and accuracy by adopted the ultrasonic technique to measure precipitation.

超声波雨量计采用超声波技术测量雨量，大大提高了其测量范围和精度。

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Point interpolation algorithm is of important significance in analysis of rain-gauge station distribution, calculation of areal precipitation, and planning for rain-gauge net.

确定雨量站网密度是水文站网规划中的一个重要问题。

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Solid precipitation on a tropical glacier in Bolivia using ultrasonic depth gauge measurements.

UNESCO: Actividades y Productos del IRD en los Andes

The glacier contribution to Las Cuevas River runoff is analysed based on the Punta de Vacas River gauge station for a hypothetical year without snow precipitation (YWSP), when the snowmelt component is zero.

UNESCO: Dublin Core