Analysis of Anomalous Tropical Cyclone Activities over the Western North Pacific and the South China Sea in 2015
Dandan Yu, Lishan Li, Lei Wan
Available Online November 2016.
- https://doi.org/10.2991/rac-16.2016.43How to use a DOI?
- synoptic meteorology; tropical cyclones; non-uniform heating; the subtropical high;
- Tropical cyclone (TC) activities over the western North Pacific and the South China Sea in 2015 have such characteristics as so many typhoons in winter and spring, so few typhoons in the South China Sea, generated source is easier than usual. Based on NCEP/NCAR reanalysis data, and the Outgoing Long wave Radiation (OLR) data from NOAA, some primary researches are performed. The results show that the abnormal warmer SST in the western North Pacific and the South China Sea is the key factors in TC abnormal activities; and external forcing of sea surface temperature anomalies caused by Walker circulation ascending area is located in the central and eastern equatorial Pacific, the vast west Pacific is a descending area, the Pacific subtropical high strengthens and spreads westward, East Asian summer monsoon is weak, ITCZ location is southerly, abnormal heat is easterly, which leads to the TCs generated source is easier than usual and TC number in the South China Sea is less than normal.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Dandan Yu AU - Lishan Li AU - Lei Wan PY - 2016/11 DA - 2016/11 TI - Analysis of Anomalous Tropical Cyclone Activities over the Western North Pacific and the South China Sea in 2015 BT - 7th Annual Meeting of Risk Analysis Council of China Association for Disaster Prevention (RAC-2016) PB - Atlantis Press SP - 270 EP - 275 SN - 1951-6851 UR - https://doi.org/10.2991/rac-16.2016.43 DO - https://doi.org/10.2991/rac-16.2016.43 ID - Yu2016/11 ER -