Influence of climatic indices (AMO, PDO, and ENSO) and temperature on rainfall in the Northeast Region of India

摘要: This study explores the spatiotemporal rainfall variability in Northeast region of India combined with an analysis effects temperature and natural climatic indices [El-Nino Southern Oscillation (ENSO), Pacific Decadal (PDO), Atlantic Multi-decadal (AMO)] on rainfall. The multi-timescale features time series for periods 1871–2016 were analysed based continuous wavelet transform method. Cross-wavelet coherence explore cross-correlation between temperature, indices, during 1950–2016. Results revealed a significant cycle 12 months monthly scale 2–8-year period annual seasonal scale. cross-wavelet results showed that affects only intra-annual (0.5–1 years) ENSO both inter-annual (1–10 years) PDO decadal (10–21 years) AMO result comes out from this is useful climate change assessment, agriculture, water resources management points view India.