泥沙粒度参数计算程序,应用作图法来计算粒度参数，计算公式为国家海洋调查规范所用的公式，一共输出五个参数，平均粒径，中值粒径，分选系数，偏态系数，峰态系数。-Sediment grain size calculation procedures, the application of mapping method to calculate the size parameters, calculated as the National Marine survey specifications used in the formula, total output of five parameters, the average particle size, median diameter, sorting coefficient, skewness factor, kurtosis coefficient.