The tropospheric teleconnection pattern be-tween the Indian Ocean Dipole (IOD) and the Pacific Ocean was studied using GISST and NECP/NCAR reanalysis data. Results show that a structure of Rossby wave train extends fr...The tropospheric teleconnection pattern be-tween the Indian Ocean Dipole (IOD) and the Pacific Ocean was studied using GISST and NECP/NCAR reanalysis data. Results show that a structure of Rossby wave train extends from the tropical Indian Ocean over southern subtropical regions of Australia and Pacific Ocean to the tropical Pacific Ocean, where a strong correlation between IOD and geo- potential height (GH) anomaly of Pacific Ocean exists. En-ergy propagating pathways of the planetary wave with wave numbers 1―3 are qualitatively in agreement with the Rossby wave train, which implies that the energy propagation of the stationary planetary wave could be responsible for the tro-pospheric teleconnection between IOD and tropical Pacific Ocean.展开更多
基金This study was supported by National Natural Science Foundation of China (Grant No.40231012)；Ministry of Science and Technology (Grant No.2002714001) ；the Special Fund for Basic Science and Technology of Ministry of Science and Technology.
文摘The tropospheric teleconnection pattern be-tween the Indian Ocean Dipole (IOD) and the Pacific Ocean was studied using GISST and NECP/NCAR reanalysis data. Results show that a structure of Rossby wave train extends from the tropical Indian Ocean over southern subtropical regions of Australia and Pacific Ocean to the tropical Pacific Ocean, where a strong correlation between IOD and geo- potential height (GH) anomaly of Pacific Ocean exists. En-ergy propagating pathways of the planetary wave with wave numbers 1―3 are qualitatively in agreement with the Rossby wave train, which implies that the energy propagation of the stationary planetary wave could be responsible for the tro-pospheric teleconnection between IOD and tropical Pacific Ocean.
