JJG Debris flow data

Supplementary lists

The supplementary materials include the data sources (in xlsx files) and the related figures, and the codes for the Poisson process simulating the surge sequences.

1 SM1, the 63 events of debris flows analyzed in the text, including the occurring date and surge number for reach event.

2 SM2, the 'Debris flow data.xlsx' file, including several sheets:

S2-1, discharge for the 63 events;

S2-2, time interval for the 63 events;

S2-3, velocity for the 63 events

S2-4, sediment delivery for the 63 events

Each event is denoted by its occurring date, e.g., No.990810 means the event occurring on 10 August, 1999.

3 SM3, probability distributions for the parameters

 S3-1, distribution of discharge for each event, illustrating that the curves for all the 63 events collapse upon the same exponential curve;

S3-2, distribution of sediment yield

S3-3, distribution of flow velocity

S3-4, distribution of time interval

Fig9-11 in the text are just some examples from these.

4 SM4, the code of the Poisson process model, including numerical simulation code (matlab) that produce the surge sequences.

5 SM5, R language code for calculating the power spectral analysis exponent of a sequence and plotting the PSA curve.

6 SM6, R language code for sequence preprocessing with moving average and DFA-1/2/3 exponent calculation

补充材料列表

本补充材料包含数据来源文件（xlsx格式）、相关配图，以及用于模拟阵流序列的泊松过程（Poisson process）代码。

1 SM1：文本中分析的63起泥石流事件数据，包含每起事件的发生日期与阵流次数。

2 SM2："Debris flow data.xlsx"文件，包含多个工作表：
S2-1：63起事件的流量数据；
S2-2：63起事件的时间间隔数据；
S2-3：63起事件的流速数据；
S2-4：63起事件的输沙量数据。
每起事件以其发生日期作为编号标识，例如编号990810代表1999年8月10日发生的泥石流事件。

3 SM3：各参数的概率分布：
S3-1：各事件流量的概率分布，结果显示63起事件的分布曲线均重合于同一条指数曲线；
S3-2：产沙量概率分布；
S3-3：流速概率分布；
S3-4：时间间隔概率分布。
正文中的图9至图11仅为这些分布的部分示例。

4 SM4：泊松过程（Poisson process）模型代码，包含用于生成阵流序列的数值模拟代码（Matlab）。
5 SM5：用于计算序列功率谱分析指数并绘制功率谱分析（Power Spectral Analysis, PSA）曲线的R语言代码。
6 SM6：用于通过移动平均进行序列预处理，并计算去趋势波动分析（Detrended Fluctuation Analysis, DFA）1/2/3阶指数的R语言代码。