vertical sounding

A direct inversion method for transform function curve in vertical electric sounding

直流电阻率测深中对转换函数曲线的直接反演法

The data of 5 ionospheric vertical sounding stations before 4 earthquakes in Japan are analyzed. It is found that most of the critical frequencies of the E sporadic layer tended to decrease and the only few tended to increase around the epicenters before and after the earthquakes.

分析日本4次地震前5个电离层垂测站资料，发现地震前后震中附近夜间电离层偶发E层的临界频率f0ES值多数呈下降趋势，少数呈增加趋势。

The theory by which vertical sounding data are interpreted is not difficult to apply.

解释垂向测深资料的原理应用起来并无困难.

A direct inversion method in the interpretation of vertical electrical sounding curves

直流电阻率测深曲线解释中的直接反演法

A piano with a vertical sounding board.

带有垂直传声结构板的钢琴。

Regional anomaly of vertical electric sounding in the geothermal area of the northeast part of North China Plain

华北平原东北部地热区垂向电测深区域异常研究

The meteorological satellite sounding data has been used in numerical forecast in many countries. This paper introduces the methods for retrieving atmospheric temperature profiles from meteorological satellite vertical sounding data and the calculations of regression retrieval coefficients used in the statistical method.

气象卫星垂直探测资料在国外已广泛用于数值天气预报中，本文介绍了由气象卫星垂直探测资料反演大气温度廓线的方法及回归反演系数的计算。