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首页> 外文期刊>Acta Meteorologica Sinica >PRECIPITABLE WATER MEASUREMENTS WITH SUN-PHOTOMETER
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PRECIPITABLE WATER MEASUREMENTS WITH SUN-PHOTOMETER

机译：用太阳光度计进行精确的水测量

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摘要

In this paper a method is described of retrieving precipitable water from sun-photometer measurements. The quantitative relationship between water vapor transmission and precipitable water is established by means of LOWTRAN 7 model. Calibration of the water vapor absorption channel is made through a modified Langley method. The good agreement between the sun-photometer and radiosonde water vapor retrieval indicates that this method is feasible. The sun-photometer is operated at Hefei to monitor the precipitable water within one year period. Characteristics of both diurnal evolution and within-one-year variation of the precipitable water and their relation with synoptic system as well as surface dew-point temperature are presented and analyzed. Errors in the retrieved precipitable water from the sun-photometer measurements are also calculated and discussed.
机译：本文描述了一种从日光光度计测量中回收可沉淀水的方法。利用LOWTRAN 7模型建立了水蒸气传输与可沉淀水之间的定量关系。水蒸气吸收通道的校准通过改进的Langley方法进行。太阳光度计和探空仪水汽反演之间的良好一致性表明该方法是可行的。太阳光度计在合肥运营，可在一年内监控可沉淀的水。介绍并分析了可降水量水的日变化和一年内变化的特征及其与天气系统的关系以及地表露点温度。还计算和讨论了从太阳光度计测量值中检索到的可沉淀水中的误差。

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