The role of boundary‐layer friction on tropical cyclogenesis and subsequent intensification

A recent idealized, high‐resolution, numerical model simulation of tropical cyclogenesis is compared with a simulation in which the surface drag is set to zero. It is shown that, while spin‐up occurs in both simulations, the vortex in the one without surface drag takes over twice as long to reach it...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Kilroy, Gerard [verfasserIn] Montgomery, Michael T Smith, Roger K

Format:	Artikel
Sprache:	Englisch

Erschienen:	2017

Rechteinformationen:	Nutzungsrecht: © 2017 Royal Meteorological Society

Schlagwörter:	tropical cyclone cyclogenesis typhoon hurricane spin‐up intensification Convection Cyclones Mathematical models Winds Organizations Simulation Tropical cyclogenesis Drag Numerical models Cyclogenesis Friction Surface drag Tropical environment

Systematik:	UA 7650

Übergeordnetes Werk:	Enthalten in: Quarterly journal of the Royal Meteorological Society - Reading : Soc., 1873, 143(2017), 707, Seite 2524-2536
Übergeordnetes Werk:	volume:143 ; year:2017 ; number:707 ; pages:2524-2536

Links:	Volltext Link aufrufen Link aufrufen

DOI / URN:	10.1002/qj.3104

Katalog-ID:	OLC1996835580

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245	1	4	\|a The role of boundary‐layer friction on tropical cyclogenesis and subsequent intensification
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520			\|a A recent idealized, high‐resolution, numerical model simulation of tropical cyclogenesis is compared with a simulation in which the surface drag is set to zero. It is shown that, while spin‐up occurs in both simulations, the vortex in the one without surface drag takes over twice as long to reach its intensification begin time. When surface friction is not included, the inner core size of the simulated vortex is considerably larger and the subsequent vortex intensity is significantly weaker than in the case with friction. In the absence of surface drag, the convection eventually develops without any systematic organization and lies often outside the radius of azimuthally averaged maximum tangential winds. The results underscore the crucial role of friction in organizing deep convection in the inner core of the nascent vortex and raise the possibility that the timing of tropical cyclogenesis in numerical models may have an important dependence on the boundary‐layer parametrization scheme used in the model. Time series of (a) maximum total wind speed ( VT max , tot) and maximum azimuthally averaged tangential wind speed ( V max , tan), (b) the radius R vmax at which the maximum tangential wind speed ( V max ) occurs, and (c) the azimuthally averaged maximum vertical velocity ( W max ). Blue curves are for Ex‐Fr, red curves are for Ex‐NoFr.
540			\|a Nutzungsrecht: © 2017 Royal Meteorological Society
650		4	\|a tropical cyclone
650		4	\|a cyclogenesis
650		4	\|a typhoon
650		4	\|a hurricane
650		4	\|a spin‐up
650		4	\|a intensification
650		4	\|a Convection
650		4	\|a Cyclones
650		4	\|a Mathematical models
650		4	\|a Winds
650		4	\|a Organizations
650		4	\|a Simulation
650		4	\|a Tropical cyclogenesis
650		4	\|a Drag
650		4	\|a Numerical models
650		4	\|a Cyclogenesis
650		4	\|a Friction
650		4	\|a Surface drag
650		4	\|a Tropical environment
700	1		\|a Montgomery, Michael T \|4 oth
700	1		\|a Smith, Roger K \|4 oth
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856	4	1	\|u http://dx.doi.org/10.1002/qj.3104 \|3 Volltext
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allfields	10.1002/qj.3104 doi PQ20171228 (DE-627)OLC1996835580 (DE-599)GBVOLC1996835580 (PRQ)p1294-4d8b4967d92f779a65d4e0e8cf221fffdbf4354ec432554ae6d9e5e6ece9eeb3 (KEY)0013343420170000143070702524roleofboundarylayerfrictionontropicalcyclogenesisa DE-627 ger DE-627 rakwb eng 550 DNB UA 7650 AVZ rvk Kilroy, Gerard verfasserin aut The role of boundary‐layer friction on tropical cyclogenesis and subsequent intensification 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier A recent idealized, high‐resolution, numerical model simulation of tropical cyclogenesis is compared with a simulation in which the surface drag is set to zero. It is shown that, while spin‐up occurs in both simulations, the vortex in the one without surface drag takes over twice as long to reach its intensification begin time. When surface friction is not included, the inner core size of the simulated vortex is considerably larger and the subsequent vortex intensity is significantly weaker than in the case with friction. In the absence of surface drag, the convection eventually develops without any systematic organization and lies often outside the radius of azimuthally averaged maximum tangential winds. The results underscore the crucial role of friction in organizing deep convection in the inner core of the nascent vortex and raise the possibility that the timing of tropical cyclogenesis in numerical models may have an important dependence on the boundary‐layer parametrization scheme used in the model. Time series of (a) maximum total wind speed ( VT max , tot) and maximum azimuthally averaged tangential wind speed ( V max , tan), (b) the radius R vmax at which the maximum tangential wind speed ( V max ) occurs, and (c) the azimuthally averaged maximum vertical velocity ( W max ). Blue curves are for Ex‐Fr, red curves are for Ex‐NoFr. Nutzungsrecht: © 2017 Royal Meteorological Society tropical cyclone cyclogenesis typhoon hurricane spin‐up intensification Convection Cyclones Mathematical models Winds Organizations Simulation Tropical cyclogenesis Drag Numerical models Cyclogenesis Friction Surface drag Tropical environment Montgomery, Michael T oth Smith, Roger K oth Enthalten in Quarterly journal of the Royal Meteorological Society Reading : Soc., 1873 143(2017), 707, Seite 2524-2536 (DE-627)129079324 (DE-600)3142-2 (DE-576)014411946 0035-9009 nnns volume:143 year:2017 number:707 pages:2524-2536 http://dx.doi.org/10.1002/qj.3104 Volltext http://onlinelibrary.wiley.com/doi/10.1002/qj.3104/abstract https://search.proquest.com/docview/1957823200 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_62 GBV_ILN_154 GBV_ILN_601 GBV_ILN_4311 UA 7650 AR 143 2017 707 2524-2536
spelling	10.1002/qj.3104 doi PQ20171228 (DE-627)OLC1996835580 (DE-599)GBVOLC1996835580 (PRQ)p1294-4d8b4967d92f779a65d4e0e8cf221fffdbf4354ec432554ae6d9e5e6ece9eeb3 (KEY)0013343420170000143070702524roleofboundarylayerfrictionontropicalcyclogenesisa DE-627 ger DE-627 rakwb eng 550 DNB UA 7650 AVZ rvk Kilroy, Gerard verfasserin aut The role of boundary‐layer friction on tropical cyclogenesis and subsequent intensification 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier A recent idealized, high‐resolution, numerical model simulation of tropical cyclogenesis is compared with a simulation in which the surface drag is set to zero. It is shown that, while spin‐up occurs in both simulations, the vortex in the one without surface drag takes over twice as long to reach its intensification begin time. When surface friction is not included, the inner core size of the simulated vortex is considerably larger and the subsequent vortex intensity is significantly weaker than in the case with friction. In the absence of surface drag, the convection eventually develops without any systematic organization and lies often outside the radius of azimuthally averaged maximum tangential winds. The results underscore the crucial role of friction in organizing deep convection in the inner core of the nascent vortex and raise the possibility that the timing of tropical cyclogenesis in numerical models may have an important dependence on the boundary‐layer parametrization scheme used in the model. Time series of (a) maximum total wind speed ( VT max , tot) and maximum azimuthally averaged tangential wind speed ( V max , tan), (b) the radius R vmax at which the maximum tangential wind speed ( V max ) occurs, and (c) the azimuthally averaged maximum vertical velocity ( W max ). Blue curves are for Ex‐Fr, red curves are for Ex‐NoFr. Nutzungsrecht: © 2017 Royal Meteorological Society tropical cyclone cyclogenesis typhoon hurricane spin‐up intensification Convection Cyclones Mathematical models Winds Organizations Simulation Tropical cyclogenesis Drag Numerical models Cyclogenesis Friction Surface drag Tropical environment Montgomery, Michael T oth Smith, Roger K oth Enthalten in Quarterly journal of the Royal Meteorological Society Reading : Soc., 1873 143(2017), 707, Seite 2524-2536 (DE-627)129079324 (DE-600)3142-2 (DE-576)014411946 0035-9009 nnns volume:143 year:2017 number:707 pages:2524-2536 http://dx.doi.org/10.1002/qj.3104 Volltext http://onlinelibrary.wiley.com/doi/10.1002/qj.3104/abstract https://search.proquest.com/docview/1957823200 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_62 GBV_ILN_154 GBV_ILN_601 GBV_ILN_4311 UA 7650 AR 143 2017 707 2524-2536
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allfieldsSound	10.1002/qj.3104 doi PQ20171228 (DE-627)OLC1996835580 (DE-599)GBVOLC1996835580 (PRQ)p1294-4d8b4967d92f779a65d4e0e8cf221fffdbf4354ec432554ae6d9e5e6ece9eeb3 (KEY)0013343420170000143070702524roleofboundarylayerfrictionontropicalcyclogenesisa DE-627 ger DE-627 rakwb eng 550 DNB UA 7650 AVZ rvk Kilroy, Gerard verfasserin aut The role of boundary‐layer friction on tropical cyclogenesis and subsequent intensification 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier A recent idealized, high‐resolution, numerical model simulation of tropical cyclogenesis is compared with a simulation in which the surface drag is set to zero. It is shown that, while spin‐up occurs in both simulations, the vortex in the one without surface drag takes over twice as long to reach its intensification begin time. When surface friction is not included, the inner core size of the simulated vortex is considerably larger and the subsequent vortex intensity is significantly weaker than in the case with friction. In the absence of surface drag, the convection eventually develops without any systematic organization and lies often outside the radius of azimuthally averaged maximum tangential winds. The results underscore the crucial role of friction in organizing deep convection in the inner core of the nascent vortex and raise the possibility that the timing of tropical cyclogenesis in numerical models may have an important dependence on the boundary‐layer parametrization scheme used in the model. Time series of (a) maximum total wind speed ( VT max , tot) and maximum azimuthally averaged tangential wind speed ( V max , tan), (b) the radius R vmax at which the maximum tangential wind speed ( V max ) occurs, and (c) the azimuthally averaged maximum vertical velocity ( W max ). Blue curves are for Ex‐Fr, red curves are for Ex‐NoFr. Nutzungsrecht: © 2017 Royal Meteorological Society tropical cyclone cyclogenesis typhoon hurricane spin‐up intensification Convection Cyclones Mathematical models Winds Organizations Simulation Tropical cyclogenesis Drag Numerical models Cyclogenesis Friction Surface drag Tropical environment Montgomery, Michael T oth Smith, Roger K oth Enthalten in Quarterly journal of the Royal Meteorological Society Reading : Soc., 1873 143(2017), 707, Seite 2524-2536 (DE-627)129079324 (DE-600)3142-2 (DE-576)014411946 0035-9009 nnns volume:143 year:2017 number:707 pages:2524-2536 http://dx.doi.org/10.1002/qj.3104 Volltext http://onlinelibrary.wiley.com/doi/10.1002/qj.3104/abstract https://search.proquest.com/docview/1957823200 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_62 GBV_ILN_154 GBV_ILN_601 GBV_ILN_4311 UA 7650 AR 143 2017 707 2524-2536
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source	Enthalten in Quarterly journal of the Royal Meteorological Society 143(2017), 707, Seite 2524-2536 volume:143 year:2017 number:707 pages:2524-2536
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topic_facet	tropical cyclone cyclogenesis typhoon hurricane spin‐up intensification Convection Cyclones Mathematical models Winds Organizations Simulation Tropical cyclogenesis Drag Numerical models Cyclogenesis Friction Surface drag Tropical environment
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It is shown that, while spin‐up occurs in both simulations, the vortex in the one without surface drag takes over twice as long to reach its intensification begin time. When surface friction is not included, the inner core size of the simulated vortex is considerably larger and the subsequent vortex intensity is significantly weaker than in the case with friction. In the absence of surface drag, the convection eventually develops without any systematic organization and lies often outside the radius of azimuthally averaged maximum tangential winds. The results underscore the crucial role of friction in organizing deep convection in the inner core of the nascent vortex and raise the possibility that the timing of tropical cyclogenesis in numerical models may have an important dependence on the boundary‐layer parametrization scheme used in the model. 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author	Kilroy, Gerard
spellingShingle	Kilroy, Gerard ddc 550 rvk UA 7650 misc tropical cyclone misc cyclogenesis misc typhoon misc hurricane misc spin‐up misc intensification misc Convection misc Cyclones misc Mathematical models misc Winds misc Organizations misc Simulation misc Tropical cyclogenesis misc Drag misc Numerical models misc Cyclogenesis misc Friction misc Surface drag misc Tropical environment The role of boundary‐layer friction on tropical cyclogenesis and subsequent intensification
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topic_title	550 DNB UA 7650 AVZ rvk The role of boundary‐layer friction on tropical cyclogenesis and subsequent intensification tropical cyclone cyclogenesis typhoon hurricane spin‐up intensification Convection Cyclones Mathematical models Winds Organizations Simulation Tropical cyclogenesis Drag Numerical models Cyclogenesis Friction Surface drag Tropical environment
topic	ddc 550 rvk UA 7650 misc tropical cyclone misc cyclogenesis misc typhoon misc hurricane misc spin‐up misc intensification misc Convection misc Cyclones misc Mathematical models misc Winds misc Organizations misc Simulation misc Tropical cyclogenesis misc Drag misc Numerical models misc Cyclogenesis misc Friction misc Surface drag misc Tropical environment
topic_unstemmed	ddc 550 rvk UA 7650 misc tropical cyclone misc cyclogenesis misc typhoon misc hurricane misc spin‐up misc intensification misc Convection misc Cyclones misc Mathematical models misc Winds misc Organizations misc Simulation misc Tropical cyclogenesis misc Drag misc Numerical models misc Cyclogenesis misc Friction misc Surface drag misc Tropical environment
topic_browse	ddc 550 rvk UA 7650 misc tropical cyclone misc cyclogenesis misc typhoon misc hurricane misc spin‐up misc intensification misc Convection misc Cyclones misc Mathematical models misc Winds misc Organizations misc Simulation misc Tropical cyclogenesis misc Drag misc Numerical models misc Cyclogenesis misc Friction misc Surface drag misc Tropical environment
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title	The role of boundary‐layer friction on tropical cyclogenesis and subsequent intensification
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title_full	The role of boundary‐layer friction on tropical cyclogenesis and subsequent intensification
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title_sort	role of boundary‐layer friction on tropical cyclogenesis and subsequent intensification
title_auth	The role of boundary‐layer friction on tropical cyclogenesis and subsequent intensification
abstract	A recent idealized, high‐resolution, numerical model simulation of tropical cyclogenesis is compared with a simulation in which the surface drag is set to zero. It is shown that, while spin‐up occurs in both simulations, the vortex in the one without surface drag takes over twice as long to reach its intensification begin time. When surface friction is not included, the inner core size of the simulated vortex is considerably larger and the subsequent vortex intensity is significantly weaker than in the case with friction. In the absence of surface drag, the convection eventually develops without any systematic organization and lies often outside the radius of azimuthally averaged maximum tangential winds. The results underscore the crucial role of friction in organizing deep convection in the inner core of the nascent vortex and raise the possibility that the timing of tropical cyclogenesis in numerical models may have an important dependence on the boundary‐layer parametrization scheme used in the model. Time series of (a) maximum total wind speed ( VT max , tot) and maximum azimuthally averaged tangential wind speed ( V max , tan), (b) the radius R vmax at which the maximum tangential wind speed ( V max ) occurs, and (c) the azimuthally averaged maximum vertical velocity ( W max ). Blue curves are for Ex‐Fr, red curves are for Ex‐NoFr.
abstractGer	A recent idealized, high‐resolution, numerical model simulation of tropical cyclogenesis is compared with a simulation in which the surface drag is set to zero. It is shown that, while spin‐up occurs in both simulations, the vortex in the one without surface drag takes over twice as long to reach its intensification begin time. When surface friction is not included, the inner core size of the simulated vortex is considerably larger and the subsequent vortex intensity is significantly weaker than in the case with friction. In the absence of surface drag, the convection eventually develops without any systematic organization and lies often outside the radius of azimuthally averaged maximum tangential winds. The results underscore the crucial role of friction in organizing deep convection in the inner core of the nascent vortex and raise the possibility that the timing of tropical cyclogenesis in numerical models may have an important dependence on the boundary‐layer parametrization scheme used in the model. Time series of (a) maximum total wind speed ( VT max , tot) and maximum azimuthally averaged tangential wind speed ( V max , tan), (b) the radius R vmax at which the maximum tangential wind speed ( V max ) occurs, and (c) the azimuthally averaged maximum vertical velocity ( W max ). Blue curves are for Ex‐Fr, red curves are for Ex‐NoFr.
abstract_unstemmed	A recent idealized, high‐resolution, numerical model simulation of tropical cyclogenesis is compared with a simulation in which the surface drag is set to zero. It is shown that, while spin‐up occurs in both simulations, the vortex in the one without surface drag takes over twice as long to reach its intensification begin time. When surface friction is not included, the inner core size of the simulated vortex is considerably larger and the subsequent vortex intensity is significantly weaker than in the case with friction. In the absence of surface drag, the convection eventually develops without any systematic organization and lies often outside the radius of azimuthally averaged maximum tangential winds. The results underscore the crucial role of friction in organizing deep convection in the inner core of the nascent vortex and raise the possibility that the timing of tropical cyclogenesis in numerical models may have an important dependence on the boundary‐layer parametrization scheme used in the model. Time series of (a) maximum total wind speed ( VT max , tot) and maximum azimuthally averaged tangential wind speed ( V max , tan), (b) the radius R vmax at which the maximum tangential wind speed ( V max ) occurs, and (c) the azimuthally averaged maximum vertical velocity ( W max ). Blue curves are for Ex‐Fr, red curves are for Ex‐NoFr.
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container_issue	707
title_short	The role of boundary‐layer friction on tropical cyclogenesis and subsequent intensification
url	http://dx.doi.org/10.1002/qj.3104 http://onlinelibrary.wiley.com/doi/10.1002/qj.3104/abstract https://search.proquest.com/docview/1957823200
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up_date	2024-07-04T01:30:42.201Z
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