Analysis of the environmental parameters between the developing and non-developing cloud clusters for typhoon formation detecting

Jiann Chyi Hwang, Gin Rong Liu, Jung Fu Wu, Tsung Hua Kuo, Hui Wen Lai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Tropical cyclones (TCs) occur generally where there are persistent, well-structured convections, and developing cloud clusters are often to be observed before TC formations. That gives us an opportunity to compare the environmental air-sea parameters between the developing and non-developing cloud clusters, and further use the parameter differences for typhoon formation detecting. In this study, we analyzed the typhoon cases over the Northwest Pacific Ocean from 2000 to 2009. Mainly the JTWC best track and ECMWF Interim Reanalysis Data were used to determine the threshold of environmental air-sea parameters' for typhoon formations. The thresholds were further tested and verified with the typhoon cases from 2010 to 2012. The result shows that 850hPa relative vorticity, 850hPa-200hPa vertical wind shear, 900hPa divergence, and sea surface temperature present high correlations to TC formations. However, there are some TCs forming in unfavorable air-sea environments. And hence, we also adopt the Box Difference Index (BDI) weights method to decrease the false alarm rate. Copyright

Original languageEnglish
Title of host publication34th Asian Conference on Remote Sensing 2013, ACRS 2013
PublisherAsian Association on Remote Sensing
Pages2270-2276
Number of pages7
ISBN (Print)9781629939100
StatePublished - 2013
Event34th Asian Conference on Remote Sensing 2013, ACRS 2013 - Bali, Indonesia
Duration: 20 Oct 201324 Oct 2013

Publication series

Name34th Asian Conference on Remote Sensing 2013, ACRS 2013
Volume3

Conference

Conference34th Asian Conference on Remote Sensing 2013, ACRS 2013
Country/TerritoryIndonesia
CityBali
Period20/10/1324/10/13

Keywords

  • Air-sea parameter
  • Box difference index (BDI)
  • Tropical cyclone (TC)
  • Typhoon formation

Fingerprint

Dive into the research topics of 'Analysis of the environmental parameters between the developing and non-developing cloud clusters for typhoon formation detecting'. Together they form a unique fingerprint.

Cite this