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为了进行浅海热流测量已研制了一项新技术。它通过一个在探针中上下移动的热敏电阻,就能测定5米深的沉积物内每隔10厘米的温度。根据获得的温度数据,用最小二乘法解热扩散方程,即假定一个海底正弦年温度差,其振幅和初始相位均为变量,就可计算出地温梯度。在泰国湾应用此系统获得了详细的温度分布。可是,为了取得更正确的热流值,今后考虑有必要测定至少深7—10米的温度。
A new technique has been developed for shallow sea heat flow measurements. It measures the temperature every 10 cm in a 5-meter-deep deposit through a thermistor moving up and down in the probe. According to the obtained temperature data, the least square method is used to solve the diffusion equation. That is to say, assuming a sinusoidal temperature difference in the seabed and its amplitude and initial phase are both variables, the geothermal gradient can be calculated. Application of this system in Thailand Bay obtained a detailed temperature distribution. However, in the future, it is necessary to determine a temperature of at least 7 to 10 meters deep in order to obtain a more correct heat flow value.