Early Warnings and Benefits Assessment for Disastrous Weathers during 2012 Typhoon

DOI

10.2991/rac-16.2016.29How to use a DOI?

Keywords

Coastal Regions of the Bohai Sea, The Typhoon Damrey, Forecast and Early Warnings, Benefits Assessment

Abstract

The Typhoon Damrey, which was entering the Bohai Sea area of Qinghuangdao in 2012, is analyzed comprehensively and evaluated for services using the data from FY-2E Infrared, radar, Micaps 3.1 system, insular stations, buoys, and numerical products, and synchronously comparing between disasters report, early warning signals, guidance product from NMC, and in-situ service materials from Internet Meteorological Observatory. Results show: The Typhoon Damrey had a horizontal scale of 500km when it's approaching Shandong Province, but reduced to 400km when it's entering the west of Bohai Sea, with 9-11km height of cloud's top. Before 20:00, 3rd August, indirect impacts were caused by the cloud system of typhoon, associated with precipitation from the peripheral of subtropical high. After 20:00, 3rd August, the main body of Damrey's cloud system over the Bohai Seas, started taking effect. 28 villages and towns suffered rainfall over 200mm, with a maximum of 308mm. The average wind speed over sea is 19.3m/s, with a maximum of 27.0m/s. Areas with intense rainfall and strong wind located at the turning point of the subtropical high's ridge line with 5860 geopotential meters. The double effects from very low southeast jet over the sea are significant, which is both dynamic factor and short-time transportation of water vapor factor. Our early warnings between 0-36 hours are accurate and timely.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yanjun Zhou
AU  - Sha Wang
PY  - 2016/11
DA  - 2016/11
TI  - Early Warnings and Benefits Assessment for Disastrous Weathers during 2012 Typhoon
BT  - Proceedings of the 7th Annual Meeting of Risk Analysis Council of China Association for Disaster Prevention
PB  - Atlantis Press
SP  - 183
EP  - 188
SN  - 1951-6851
UR  - https://doi.org/10.2991/rac-16.2016.29
DO  - 10.2991/rac-16.2016.29
ID  - Zhou2016/11
ER  -