贝叶斯框架的Copula季节水文干旱预报模型构建及应用

张玉虎, 向柳, 孙庆, 陈秋华

Bayesian Probabilistic Forecasting of Seasonal Hydrological Drought Based on Copula Function

Yuhu Zhang, Liu Xiang, Qing Sun, Qiuhua Chen

表1 基于SRI的干旱等级划分

Table 1 Categories of SRI to drought

干旱等级 干旱程度 SRI值 D0 轻微 (-0.8,-0.5] D1 中度 (-1.3,-0.8] D2 严重 (-1.6,-1.3] D3 极端 (-2.0,-1.6] D4 异常 (-∞,-2.0]