Observation of Enhanced Nonlinear Interactions After Severe Tropical Storm Chanchu (2004) in the Western South China Sea
Severe tropical storm Chanchu passed the subsurface mooring in the western South China Sea in June 2004, and its effects on the internal wavefield and nonlinear interactions were examined. The internal wavefield was characterized by diurnal (D1) and semidiurnal (D2) tides before Chanchu. However, af...
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| Veröffentlicht in: | Journal of geophysical research. Oceans 2019-06, Vol.124 (6), p.3837-3848 |
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| container_title | Journal of geophysical research. Oceans |
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| creator | Liang, Chang‐Rong Chen, Gui‐Ying Shang, Xiao‐Dong Xie, Xiao‐Hui Wang, Dong‐Xiao |
| description | Severe tropical storm Chanchu passed the subsurface mooring in the western South China Sea in June 2004, and its effects on the internal wavefield and nonlinear interactions were examined. The internal wavefield was characterized by diurnal (D1) and semidiurnal (D2) tides before Chanchu. However, after the passage of Chanchu, the internal wavefield was not only characterized by diurnal and semidiurnal tides but also by near‐inertial (f) waves, internal waves with higher harmonic frequency (fD2 = f+D2 and D3 = D1+D2), and enhanced diurnal currents. Analysis of the rotary coefficient and bicoherence suggested that the observed fD2 waves, D3 waves, and enhanced diurnal currents originated from the nonlinear interactions of f+D2 = fD2, D1+D2 = D3, and f+f = 2f, respectively. Previous studies indicated that the nonlinear interactions induced by tropical cyclones mainly occur between the near‐inertial waves and internal tides (f+D1 = fD1 or f+D2 = fD2). Our observations indicate that tropical cyclones can also induce the self‐interaction of near‐inertial waves (f+f = 2f) and enhance nonlinear interactions between diurnal and semidiurnal tides (D1+D2 = D3). Critical diurnal latitudes (where 2f ≈ D1) play an important role in the occurrence of these nonlinear interactions. Near‐inertial waves undergo self‐interactions (f+f = 2f) near the critical diurnal latitudes, and near‐inertial energy is transferred to diurnal waves. Enhanced diurnal waves further contribute to the nonlinear interactions of D1+D2 = D3. These nonlinear processes might promote the energy cascade of the near‐inertial waves induced by tropical cyclones near the critical diurnal latitudes and play an important role in ocean mixing.
Key Points
This study presents the effect of tropical cyclone on the internal wave field
This study observes enhanced self‐interaction of near‐inertial waves induced by tropical cyclone
This study observes enhanced nonlinear interaction among internal tides induced by tropical cyclone |
| doi_str_mv | 10.1029/2018JC014839 |
| format | Article |
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Key Points
This study presents the effect of tropical cyclone on the internal wave field
This study observes enhanced self‐interaction of near‐inertial waves induced by tropical cyclone
This study observes enhanced nonlinear interaction among internal tides induced by tropical cyclone</description><identifier>ISSN: 2169-9275</identifier><identifier>EISSN: 2169-9291</identifier><identifier>DOI: 10.1029/2018JC014839</identifier><language>eng</language><publisher>Washington: Blackwell Publishing Ltd</publisher><subject>Cyclones ; Diurnal ; Diurnal variations ; Geophysics ; Hurricanes ; Inertial waves ; Internal tides ; internal wave ; Internal waves ; nonlinear interaction ; Ocean mixing ; Semidiurnal tides ; spectrum ; Storms ; Tidal dynamics ; Tides ; Tropical climate ; tropical cyclone ; Tropical cyclones ; Tropical depressions ; Tropical storms</subject><ispartof>Journal of geophysical research. Oceans, 2019-06, Vol.124 (6), p.3837-3848</ispartof><rights>2019. American Geophysical Union. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a3302-7c47ceb6ce2d2e2b11ec72dce6e86d3fe99c3d73e893a7b93161ba5f07e9080e3</citedby><cites>FETCH-LOGICAL-a3302-7c47ceb6ce2d2e2b11ec72dce6e86d3fe99c3d73e893a7b93161ba5f07e9080e3</cites><orcidid>0000-0002-0133-7954 ; 0000-0003-1736-0523 ; 0000-0001-5238-047X ; 0000-0001-8778-2188</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1029%2F2018JC014839$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2F2018JC014839$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,1433,27924,27925,45574,45575,46409,46833</link.rule.ids></links><search><creatorcontrib>Liang, Chang‐Rong</creatorcontrib><creatorcontrib>Chen, Gui‐Ying</creatorcontrib><creatorcontrib>Shang, Xiao‐Dong</creatorcontrib><creatorcontrib>Xie, Xiao‐Hui</creatorcontrib><creatorcontrib>Wang, Dong‐Xiao</creatorcontrib><title>Observation of Enhanced Nonlinear Interactions After Severe Tropical Storm Chanchu (2004) in the Western South China Sea</title><title>Journal of geophysical research. Oceans</title><description>Severe tropical storm Chanchu passed the subsurface mooring in the western South China Sea in June 2004, and its effects on the internal wavefield and nonlinear interactions were examined. The internal wavefield was characterized by diurnal (D1) and semidiurnal (D2) tides before Chanchu. However, after the passage of Chanchu, the internal wavefield was not only characterized by diurnal and semidiurnal tides but also by near‐inertial (f) waves, internal waves with higher harmonic frequency (fD2 = f+D2 and D3 = D1+D2), and enhanced diurnal currents. Analysis of the rotary coefficient and bicoherence suggested that the observed fD2 waves, D3 waves, and enhanced diurnal currents originated from the nonlinear interactions of f+D2 = fD2, D1+D2 = D3, and f+f = 2f, respectively. Previous studies indicated that the nonlinear interactions induced by tropical cyclones mainly occur between the near‐inertial waves and internal tides (f+D1 = fD1 or f+D2 = fD2). Our observations indicate that tropical cyclones can also induce the self‐interaction of near‐inertial waves (f+f = 2f) and enhance nonlinear interactions between diurnal and semidiurnal tides (D1+D2 = D3). Critical diurnal latitudes (where 2f ≈ D1) play an important role in the occurrence of these nonlinear interactions. Near‐inertial waves undergo self‐interactions (f+f = 2f) near the critical diurnal latitudes, and near‐inertial energy is transferred to diurnal waves. Enhanced diurnal waves further contribute to the nonlinear interactions of D1+D2 = D3. These nonlinear processes might promote the energy cascade of the near‐inertial waves induced by tropical cyclones near the critical diurnal latitudes and play an important role in ocean mixing.
Key Points
This study presents the effect of tropical cyclone on the internal wave field
This study observes enhanced self‐interaction of near‐inertial waves induced by tropical cyclone
This study observes enhanced nonlinear interaction among internal tides induced by tropical cyclone</description><subject>Cyclones</subject><subject>Diurnal</subject><subject>Diurnal variations</subject><subject>Geophysics</subject><subject>Hurricanes</subject><subject>Inertial waves</subject><subject>Internal tides</subject><subject>internal wave</subject><subject>Internal waves</subject><subject>nonlinear interaction</subject><subject>Ocean mixing</subject><subject>Semidiurnal tides</subject><subject>spectrum</subject><subject>Storms</subject><subject>Tidal dynamics</subject><subject>Tides</subject><subject>Tropical climate</subject><subject>tropical cyclone</subject><subject>Tropical cyclones</subject><subject>Tropical depressions</subject><subject>Tropical storms</subject><issn>2169-9275</issn><issn>2169-9291</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp90F1LwzAUBuAgCo65O39AwBsFq_noVy5HmXNjOHATL0uantKOLplJO92_N2MiXpmbJPC85xwOQteUPFDCxCMjNJ1nhIYpF2dowGgsAsEEPf99J9ElGjm3If6kNA1DMUBfy8KB3cuuMRqbCk90LbWCEr8Y3TYapMUz3YGV6igcHlf-g1ewBwt4bc2uUbLFq87YLc6O0brHt4yQ8A43Gnc14HdwPqLxyvRd7U2jpc_LK3RRydbB6OceorenyTp7DhbL6SwbLwLJOWFBosJEQRErYCUDVlAKKmGlghjSuOQVCKF4mXBIBZdJITiNaSGjiiQgSEqAD9HNqe7Omo_ez5JvTG-1b5kzFkdRnHjn1f1JKWucs1DlO9tspT3klOTH9eZ_1-s5P_HPpoXDvzafT18zxsOY8W-KansE</recordid><startdate>201906</startdate><enddate>201906</enddate><creator>Liang, Chang‐Rong</creator><creator>Chen, Gui‐Ying</creator><creator>Shang, Xiao‐Dong</creator><creator>Xie, Xiao‐Hui</creator><creator>Wang, Dong‐Xiao</creator><general>Blackwell Publishing Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7TN</scope><scope>F1W</scope><scope>H96</scope><scope>KL.</scope><scope>L.G</scope><orcidid>https://orcid.org/0000-0002-0133-7954</orcidid><orcidid>https://orcid.org/0000-0003-1736-0523</orcidid><orcidid>https://orcid.org/0000-0001-5238-047X</orcidid><orcidid>https://orcid.org/0000-0001-8778-2188</orcidid></search><sort><creationdate>201906</creationdate><title>Observation of Enhanced Nonlinear Interactions After Severe Tropical Storm Chanchu (2004) in the Western South China Sea</title><author>Liang, Chang‐Rong ; Chen, Gui‐Ying ; Shang, Xiao‐Dong ; Xie, Xiao‐Hui ; Wang, Dong‐Xiao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a3302-7c47ceb6ce2d2e2b11ec72dce6e86d3fe99c3d73e893a7b93161ba5f07e9080e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Cyclones</topic><topic>Diurnal</topic><topic>Diurnal variations</topic><topic>Geophysics</topic><topic>Hurricanes</topic><topic>Inertial waves</topic><topic>Internal tides</topic><topic>internal wave</topic><topic>Internal waves</topic><topic>nonlinear interaction</topic><topic>Ocean mixing</topic><topic>Semidiurnal tides</topic><topic>spectrum</topic><topic>Storms</topic><topic>Tidal dynamics</topic><topic>Tides</topic><topic>Tropical climate</topic><topic>tropical cyclone</topic><topic>Tropical cyclones</topic><topic>Tropical depressions</topic><topic>Tropical storms</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liang, Chang‐Rong</creatorcontrib><creatorcontrib>Chen, Gui‐Ying</creatorcontrib><creatorcontrib>Shang, Xiao‐Dong</creatorcontrib><creatorcontrib>Xie, Xiao‐Hui</creatorcontrib><creatorcontrib>Wang, Dong‐Xiao</creatorcontrib><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Journal of geophysical research. Oceans</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liang, Chang‐Rong</au><au>Chen, Gui‐Ying</au><au>Shang, Xiao‐Dong</au><au>Xie, Xiao‐Hui</au><au>Wang, Dong‐Xiao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Observation of Enhanced Nonlinear Interactions After Severe Tropical Storm Chanchu (2004) in the Western South China Sea</atitle><jtitle>Journal of geophysical research. Oceans</jtitle><date>2019-06</date><risdate>2019</risdate><volume>124</volume><issue>6</issue><spage>3837</spage><epage>3848</epage><pages>3837-3848</pages><issn>2169-9275</issn><eissn>2169-9291</eissn><abstract>Severe tropical storm Chanchu passed the subsurface mooring in the western South China Sea in June 2004, and its effects on the internal wavefield and nonlinear interactions were examined. The internal wavefield was characterized by diurnal (D1) and semidiurnal (D2) tides before Chanchu. However, after the passage of Chanchu, the internal wavefield was not only characterized by diurnal and semidiurnal tides but also by near‐inertial (f) waves, internal waves with higher harmonic frequency (fD2 = f+D2 and D3 = D1+D2), and enhanced diurnal currents. Analysis of the rotary coefficient and bicoherence suggested that the observed fD2 waves, D3 waves, and enhanced diurnal currents originated from the nonlinear interactions of f+D2 = fD2, D1+D2 = D3, and f+f = 2f, respectively. Previous studies indicated that the nonlinear interactions induced by tropical cyclones mainly occur between the near‐inertial waves and internal tides (f+D1 = fD1 or f+D2 = fD2). Our observations indicate that tropical cyclones can also induce the self‐interaction of near‐inertial waves (f+f = 2f) and enhance nonlinear interactions between diurnal and semidiurnal tides (D1+D2 = D3). Critical diurnal latitudes (where 2f ≈ D1) play an important role in the occurrence of these nonlinear interactions. Near‐inertial waves undergo self‐interactions (f+f = 2f) near the critical diurnal latitudes, and near‐inertial energy is transferred to diurnal waves. Enhanced diurnal waves further contribute to the nonlinear interactions of D1+D2 = D3. These nonlinear processes might promote the energy cascade of the near‐inertial waves induced by tropical cyclones near the critical diurnal latitudes and play an important role in ocean mixing.
Key Points
This study presents the effect of tropical cyclone on the internal wave field
This study observes enhanced self‐interaction of near‐inertial waves induced by tropical cyclone
This study observes enhanced nonlinear interaction among internal tides induced by tropical cyclone</abstract><cop>Washington</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/2018JC014839</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0002-0133-7954</orcidid><orcidid>https://orcid.org/0000-0003-1736-0523</orcidid><orcidid>https://orcid.org/0000-0001-5238-047X</orcidid><orcidid>https://orcid.org/0000-0001-8778-2188</orcidid></addata></record> |
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| subjects | Cyclones Diurnal Diurnal variations Geophysics Hurricanes Inertial waves Internal tides internal wave Internal waves nonlinear interaction Ocean mixing Semidiurnal tides spectrum Storms Tidal dynamics Tides Tropical climate tropical cyclone Tropical cyclones Tropical depressions Tropical storms |
| title | Observation of Enhanced Nonlinear Interactions After Severe Tropical Storm Chanchu (2004) in the Western South China Sea |
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