caa a22 4500 605474036 CHVBK 20210128100345.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s00382-014-2180-y doi (NATIONALLICENCE)springer-10.1007/s00382-014-2180-y Impact of intraseasonal oscillation on the tropical cyclone track in the South China Sea [Elektronische Daten] [Lei Yang, Yan Du, Dongxiao Wang, Chunzai Wang, Xin Wang] This study investigates the impact of the intraseasonal oscillation (ISO) on tropical cyclone (TC) tracks in the South China Sea (SCS) during 1970-2010. About one third of TCs in the SCS move eastward, while the other two thirds move westward. In the TC genesis peak seasons of June-October (JJASO), the westward moving TCs are controlled by the background TC steering flow of easterly, and the eastward moving TCs by the TC steering flow induced by the ISO. The outgoing longwave radiation and wind fields show that the eastward moving TCs were mostly along the main axis of strong TC steering flow anomaly of westerly associated with the ISO, while the westward moving TCs were only weakly associated with the ISO. An experiment performed with a simple two-level model further confirmed the result. The interannual variation of TC tracks in the SCS is also discussed. It is found that the steering flow anomalies in the SCS mostly favor eastward moving TCs in central Pacific (CP) El Niño and eastern Pacific (EP) El Niño years. However, the eastward flow anomalies are too weak to have strong influence on the majority of the TCs. During La Niña years, TCs in the SCS tend to move westward, possibly related to the westward steering flow anomalies. Springer-Verlag Berlin Heidelberg, 2014 The South China Sea nationallicence Tropical cyclone nationallicence Track nationallicence Steering flow nationallicence Intraseasonal oscillation nationallicence ENSO nationallicence Yang Lei State Key Laboratory of Tropical Oceanography (LTO), South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, 510301, Guangzhou, China aut Du Yan State Key Laboratory of Tropical Oceanography (LTO), South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, 510301, Guangzhou, China aut Wang Dongxiao State Key Laboratory of Tropical Oceanography (LTO), South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, 510301, Guangzhou, China aut Wang Chunzai NOAA/Atlantic Oceanographic and Meteorological Laboratory, Miami, FL, USA aut Wang Xin State Key Laboratory of Tropical Oceanography (LTO), South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, 510301, Guangzhou, China aut Climate Dynamics Springer Berlin Heidelberg 44/5-6(2015-03-01), 1505-1519 0930-7575 44:5-6<1505 2015 44 382 https://doi.org/10.1007/s00382-014-2180-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00382-014-2180-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yang Lei State Key Laboratory of Tropical Oceanography (LTO), South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, 510301, Guangzhou, China aut NATIONALLICENCE 700 1- Du Yan State Key Laboratory of Tropical Oceanography (LTO), South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, 510301, Guangzhou, China aut NATIONALLICENCE 700 1- Wang Dongxiao State Key Laboratory of Tropical Oceanography (LTO), South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, 510301, Guangzhou, China aut NATIONALLICENCE 700 1- Wang Chunzai NOAA/Atlantic Oceanographic and Meteorological Laboratory, Miami, FL, USA aut NATIONALLICENCE 700 1- Wang Xin State Key Laboratory of Tropical Oceanography (LTO), South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, 510301, Guangzhou, China aut NATIONALLICENCE 773 0- Climate Dynamics Springer Berlin Heidelberg 44/5-6(2015-03-01), 1505-1519 0930-7575 44:5-6<1505 2015 44 382