Ryuichi Kawamura

TL;DR: In this paper, a varimax-rotated empirical orthogonal function (R-EOF) analysis was applied to monthly mean SST anomalies to study the interdecadal variability of leading ENSO modes.

TL;DR: In this article, four teleconnection patterns that are possibly associated with the anomalous summer climate in Japan and the surrounding regions, were extracted by applying empirical orthogonal function and regression analyses to stream function anomalies.

TL;DR: In this article, a significant coupling of the Asian summer monsoon and ENSO was examined using the NCEP/NCAR reanalysis for the period 1973-1995, showing that a monsoon index, defined as meridional gradient of summertime upper-tropospheric thickness (200-500 hPa) anomalies across 20°N over the Indian subcontinent, is highly correlated with Nino-3 SST anomalies in the preceding spring.

TL;DR: In this article, seasonal variations of large-scale convective activity and wind over the western Pacific are examined using Geostationary Meteorological Satellite infrared equivalent blackbody temperature (T BB ) and European Center for Medium range Weather Forecast (ECMWF) global analyses over a 10-year period from 1980 to 1989.

TL;DR: In this paper, the authors examined the role of the tropical Indian Ocean in the Asian summer monsoon and El Nino-Southern Oscillation (ENSO) coupling using an ocean general circulation model forced by daily mean wind stresses and heat fluxes derived from the bulk formulation with the National Centers for Environmental Protection/National Center for Atmospheric Research reanalysis.