Spatial-temporal statistics of monthly surface runoff data from the NLDAS model (1979-2013)

The data set contains the monthly statistics for the SSRUNsfc variable (surface runoff - non-infiltrating) of the North American Land Data Assimilation System Version 2 (NLDAS-2) model. The period of analysis is from 1979-01-02 to 2013-12-31. The statistics for each calendar month are the mean, standard deviation, minimum, maximum, and percentiles in 0.05 interval. The data set also includes a p-value per calendar month of the Kolmogorov-Smirnov (KS) test. The p-value of the KS test shows if the computed empirical cumulative distribution function (CDF) comes from a fitted gamma distribution

本数据集涵盖北美陆面数据同化系统第二版（North American Land Data Assimilation System Version 2, NLDAS-2）模型的SSRUNsfc变量（地表径流-非入渗型）的逐月统计结果。本次分析的时间范围为1979年1月2日至2013年12月31日。针对每个日历月，统计指标包含均值、标准差、最小值、最大值，以及步长为0.05的百分位数。本数据集同时包含各日历月对应的柯尔莫哥洛夫-斯米尔诺夫（Kolmogorov-Smirnov, KS）检验p值，该p值可用于判断所计算得到的经验累积分布函数（empirical cumulative distribution function, CDF）是否源自拟合的伽马分布。