一种基于频率的GCM日降水偏差校正方法改进及其在长江流域的应用

岳书旭, 胡实, 莫兴国, 占车生, 刘苏峡

Improved frequency-dependent bias correction method for GCM daily precipitation and its application in Yangtze River Basin

YUE Shuxu, HU Shi, MO Xingguo, ZHAN Chesheng, LIU Suxia

图4 验证期（1986—2005年）年降水量及降水频率的多模式平均值、改进前后的校正值与观测值的对比 注：每个灰色圆圈代表长江流域内的一个格点。

Fig. 4 Comparisons of annual precipitation and wet-day frequency during validation period (1986-2005) for observations and the ensemble mean of the original simulations, ERCDFm bias correction, frequency-dependent ERCDFm bias correction