Effects of preexisting cyclonic eddies on upper ocean responses to Category 5 typhoons in the western North Pacific

Zhe-Wen Zheng, Chung Ru Ho, Quanan Zheng, Yao Tsai Lo, Nan Jung Kuo, Ganesh Gopalakrishnan

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

This study examines the impacts of preexisting mesoscale cyclonic eddies (PCEs) on successive enhanced sea surface cooling in response to the passage of Super Typhoon Hai-Tang in the western North Pacific in 2005, using numerical simulation methods. We have done two numerical experiments: one with the presence of these PCEs resolved by the Hybrid Coordinate Ocean Model/Navy Coupled Ocean Data Assimilation system (EXPHYC) and another with World Ocean Atlas 2001 climatology as initial conditions (EXPWOA). The results show that the cooling response simulated by EXPWOA is only half of that simulated by EXPHYC, which is close to satellite observations. This suggests that an accurate representation of the upper dynamic conditions is required to estimate the sea surface cooling to a typhoon accurately. Subsequently, the effects of the PCEs on successive cooling response to most major typhoons are evaluated by conducting a systematical analysis with a focus on Category 5 typhoons occurring in the region from 2003 to 2008. Satellite altimeter sea surface height anomaly data and merged Tropical Rainfall Measuring Mission Microwave Imager/Advanced Microwave Scanning Radiometer for EOS microwave sea surface temperatures (SST) are used to characterize PCEs and cooling responses to those typhoons. The results identify the relationship between PCEs and successive enhanced SST cooling for most strong typhoons in the western North Pacific.

Original languageEnglish
Article numberC09013
JournalJournal of Geophysical Research: Oceans
Volume115
Issue number9
DOIs
Publication statusPublished - 2010 Jan 1

Fingerprint

typhoons
upper ocean
mesoscale eddy
eddy
oceans
cooling
vortices
Cooling
surface cooling
sea surface temperature
microwaves
Microwaves
typhoon
surface temperature
sea surface
ocean
Earth Observing System
altimeters
ocean models
navy

ASJC Scopus subject areas

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

Cite this

Effects of preexisting cyclonic eddies on upper ocean responses to Category 5 typhoons in the western North Pacific. / Zheng, Zhe-Wen; Ho, Chung Ru; Zheng, Quanan; Lo, Yao Tsai; Kuo, Nan Jung; Gopalakrishnan, Ganesh.

In: Journal of Geophysical Research: Oceans, Vol. 115, No. 9, C09013, 01.01.2010.

Research output: Contribution to journalArticle

Zheng, Zhe-Wen ; Ho, Chung Ru ; Zheng, Quanan ; Lo, Yao Tsai ; Kuo, Nan Jung ; Gopalakrishnan, Ganesh. / Effects of preexisting cyclonic eddies on upper ocean responses to Category 5 typhoons in the western North Pacific. In: Journal of Geophysical Research: Oceans. 2010 ; Vol. 115, No. 9.
@article{12925ad9593148598e18e818dd7c3fc4,
title = "Effects of preexisting cyclonic eddies on upper ocean responses to Category 5 typhoons in the western North Pacific",
abstract = "This study examines the impacts of preexisting mesoscale cyclonic eddies (PCEs) on successive enhanced sea surface cooling in response to the passage of Super Typhoon Hai-Tang in the western North Pacific in 2005, using numerical simulation methods. We have done two numerical experiments: one with the presence of these PCEs resolved by the Hybrid Coordinate Ocean Model/Navy Coupled Ocean Data Assimilation system (EXPHYC) and another with World Ocean Atlas 2001 climatology as initial conditions (EXPWOA). The results show that the cooling response simulated by EXPWOA is only half of that simulated by EXPHYC, which is close to satellite observations. This suggests that an accurate representation of the upper dynamic conditions is required to estimate the sea surface cooling to a typhoon accurately. Subsequently, the effects of the PCEs on successive cooling response to most major typhoons are evaluated by conducting a systematical analysis with a focus on Category 5 typhoons occurring in the region from 2003 to 2008. Satellite altimeter sea surface height anomaly data and merged Tropical Rainfall Measuring Mission Microwave Imager/Advanced Microwave Scanning Radiometer for EOS microwave sea surface temperatures (SST) are used to characterize PCEs and cooling responses to those typhoons. The results identify the relationship between PCEs and successive enhanced SST cooling for most strong typhoons in the western North Pacific.",
author = "Zhe-Wen Zheng and Ho, {Chung Ru} and Quanan Zheng and Lo, {Yao Tsai} and Kuo, {Nan Jung} and Ganesh Gopalakrishnan",
year = "2010",
month = "1",
day = "1",
doi = "10.1029/2009JC005562",
language = "English",
volume = "115",
journal = "Quaternary International",
issn = "1040-6182",
publisher = "Elsevier Limited",
number = "9",

}

TY - JOUR

T1 - Effects of preexisting cyclonic eddies on upper ocean responses to Category 5 typhoons in the western North Pacific

AU - Zheng, Zhe-Wen

AU - Ho, Chung Ru

AU - Zheng, Quanan

AU - Lo, Yao Tsai

AU - Kuo, Nan Jung

AU - Gopalakrishnan, Ganesh

PY - 2010/1/1

Y1 - 2010/1/1

N2 - This study examines the impacts of preexisting mesoscale cyclonic eddies (PCEs) on successive enhanced sea surface cooling in response to the passage of Super Typhoon Hai-Tang in the western North Pacific in 2005, using numerical simulation methods. We have done two numerical experiments: one with the presence of these PCEs resolved by the Hybrid Coordinate Ocean Model/Navy Coupled Ocean Data Assimilation system (EXPHYC) and another with World Ocean Atlas 2001 climatology as initial conditions (EXPWOA). The results show that the cooling response simulated by EXPWOA is only half of that simulated by EXPHYC, which is close to satellite observations. This suggests that an accurate representation of the upper dynamic conditions is required to estimate the sea surface cooling to a typhoon accurately. Subsequently, the effects of the PCEs on successive cooling response to most major typhoons are evaluated by conducting a systematical analysis with a focus on Category 5 typhoons occurring in the region from 2003 to 2008. Satellite altimeter sea surface height anomaly data and merged Tropical Rainfall Measuring Mission Microwave Imager/Advanced Microwave Scanning Radiometer for EOS microwave sea surface temperatures (SST) are used to characterize PCEs and cooling responses to those typhoons. The results identify the relationship between PCEs and successive enhanced SST cooling for most strong typhoons in the western North Pacific.

AB - This study examines the impacts of preexisting mesoscale cyclonic eddies (PCEs) on successive enhanced sea surface cooling in response to the passage of Super Typhoon Hai-Tang in the western North Pacific in 2005, using numerical simulation methods. We have done two numerical experiments: one with the presence of these PCEs resolved by the Hybrid Coordinate Ocean Model/Navy Coupled Ocean Data Assimilation system (EXPHYC) and another with World Ocean Atlas 2001 climatology as initial conditions (EXPWOA). The results show that the cooling response simulated by EXPWOA is only half of that simulated by EXPHYC, which is close to satellite observations. This suggests that an accurate representation of the upper dynamic conditions is required to estimate the sea surface cooling to a typhoon accurately. Subsequently, the effects of the PCEs on successive cooling response to most major typhoons are evaluated by conducting a systematical analysis with a focus on Category 5 typhoons occurring in the region from 2003 to 2008. Satellite altimeter sea surface height anomaly data and merged Tropical Rainfall Measuring Mission Microwave Imager/Advanced Microwave Scanning Radiometer for EOS microwave sea surface temperatures (SST) are used to characterize PCEs and cooling responses to those typhoons. The results identify the relationship between PCEs and successive enhanced SST cooling for most strong typhoons in the western North Pacific.

UR - http://www.scopus.com/inward/record.url?scp=77956801579&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77956801579&partnerID=8YFLogxK

U2 - 10.1029/2009JC005562

DO - 10.1029/2009JC005562

M3 - Article

VL - 115

JO - Quaternary International

JF - Quaternary International

SN - 1040-6182

IS - 9

M1 - C09013

ER -