Based on the NCEP/NCAR reanalysis data, COBE sea surface temperature (SST) and GPCC precipitation, influences of El Niño-South Oscillation (ENSO) variability winter rainfall anomalies in Southeast China is analyzed under synergistic effect Indian Ocean Dipole (IOD). Winter precipitation atmospheric circulation years IOD concurring with ENSO are compared single or ENSO, to reveal mechanism effec...