RAINEX: Convective Structures in Tropical Cyclones Robert Houze D. Hence, A. Didlake, B. Smull, W.-C. Lee, M. Bell Hurricane Workshop NCAR Boulder 23 February.

Slides:

Advertisements

Similar presentations

5.6.1 Hurricane : introduction

Advertisements

Research Objectives A robust dataset was collected as Hurricane Frances made landfall on the eastern coast of Florida on 5 September This dataset.

AMS Hurricane and Tropical Meteorology Conference Tucson May 9, 2010 Vertical distribution of radar reflectivity in eyewalls observed by TRMM Deanna A.

Hurricane Frances. MODIS view of Hurricane Frances (Note that eye is present but clouds at base of eye make it look cloudy throughout)

Hurricanes. Midlatitude Cyclones vs. Tropical Storms  Midlatitude Cyclones  Cover large area  Have cold fronts and warm fronts  Less violent (except.

Deanna Hence, Robert Houze and Stacy Brodzik University of Washington Introduction Methodology Eyewall—All Overpasses Rainbands—All Overpasses Changes.

Severe Convection and Mesoscale Convective Systems R. A. Houze Lecture, Summer School on Severe and Convective Weather, Nanjing, 11 July 2011.

August- September NSF NOAA NRL NCAR UW UM RAINEX Workshop, Miami, 5-7 June 2006.

Structure of mid-latitude cyclones crossing the California Sierra Nevada as seen by vertically pointing radar Socorro Medina, Robert Houze, Christopher.

Vorticity Structures Accompanying Eyewall Replacement in Hurricane Rita (2005) R.A. Houze, Jr., and B.F. Smull Department of Atmospheric Sciences University.

February 5th, TRMM Conference The 3-D Reflectivity Structure of Intense Atlantic Hurricanes as seen by the TRMM PR Deanna Hence, Robert Houze.

Deanna Hence, Stacy Brodzik and Robert Houze University of Washington Introduction Methodology TCSP Storms RAINEX Storms Combined TCSP + RAINEX Storms.

Synoptic, Topographic, and Diurnal Effects on Summer Convection in South America Ulrike Romatschke University of Washington, University of Vienna Robert.

1 Cloud Dynamical and Microphysical Problems that Could be Addressed by an Integrated Remote Sensing System R. A. Houze Presented at NCAR CAPRIS Discussion,

AMS 28th Conf. on Hurricanes & Tropical Meteorology Orlando, Florida - 29 April 2007 Convection in the Genesis Phase of Ophelia (2005) Wen-Chau Lee*Michael.

August- September NSF NOAA NRL NCAR UW UM 27th Conference on Hurricanes and Tropical Meteorology, Monterey, CA, 27 April 2006.

Mesoscale Observations in Hurricanes Robert Houze University of Washington First US-China Symposium on Meteorology, Norman, Oklahoma, 26 February 2008.

Three-Dimensional Precipitation Structure of Tropical Cyclones AMS Hurricane and Tropical Meteorology Conference May 2nd, 2008 Deanna A. Hence and Robert.

August- September NSF NOAA NRL NCAR UW UM AGU, San Francisco, 12 December 2006.

27th Conference on Hurricanes and Tropical Meteorology, Monterey, CA, 27 April 2006 Summary of Ophelia Flights.

Convective-scale Downdrafts in the Principal Rainband of Hurricane Katrina (2005) Anthony C. Didlake, Jr. COGS Seminar UW, Dept. Atmos Sci., Seattle, November.

TiMREX Meeting, Boulder, 13 September 2007WesternCentral Eastern UW TiMREX Orographic Precipitation Study Houze, Medina, Brodzik UW TiMREX Orographic Precipitation.

Principal Rainband of Hurricane Katrina as observed in RAINEX Anthony C. Didlake, Jr. 28 th Conference on Hurricanes and Tropical Meteorology April 29,

Observational and Modeling Study of Hurricane Rainbands and Intensity Changes aka Rainband and Intensity Change Experiment “RAINEX” Shuyi S. Chen and Robert.

Robert A. Houze University of Washington Robert A. Houze University of Washington Using the TRMM Precipitation Radar for Storm Structure Analysis Precipitation.

Convective-scale diagnostics Rob Rogers NOAA/AOML Hurricane Research Division.

Vortex Rossby Waves in Hurricanes Katrina and Rita (2005) Falko Judt and Shuyi S. Chen Rosenstiel School of Marine and Atmospheric Science, University.

NSF Hurricane Research National Science Foundation Pamela Stephens Geosciences Directorate.

Observed Vorticity Structure in Hurricane Rita (2005) Methodology Improvements Michael M. Bell National Center for Atmospheric Research/ Earth Observing.

Severe Convection and Mesoscale Convective Systems R. A. Houze Lecture, Indian Institute of Tropical Meteorology, Pune, 5 August 2010.

Air-Sea Exchange in Hurricanes by Peter G. Black & Hurricane Intensity and Eyewall Replacement by Robert A. Houze Jr. Lynsie M. Schwerer Atmospheric Science.

27 Sept Future WorkResultsMethodologyMotivation Chip HelmsComposite Analyses of Tropical Convective Systems1 Composite Analyses of Tropical Convective.

High-Resolution Simulation of Hurricane Bonnie (1998). Part II: Water Budget Braun, S. A., 2006: High-Resolution Simulation of Hurricane Bonnie (1998).

Jorgensen, D. P., 1984a: Mesoscale and convective-scale characteristics of mature Hurricanes. Part I: General observations by research aircraft. J. Atmos.

Analysis of Cloud-to-Ground Lightning Within 16 Landfalling Hurricanes Danielle Nagele.

1 Aircraft observations of the multiscale structure and evolution of rapidly intensifying tropical cyclones Robert Rogers 1, Paul Reasor 1, Jun Zhang 2,

Hurricane Karl’s landfall as seen by high-resolution radar data and WRF Jennifer DeHart and Robert Houze Cyclone Workshop NASA grants: NNX13AG71G.

Real-Time High-Resolution MM5 and WRF Forecasts during RAINEX John P. Cangialosi 1*, S. S. Chen 1, W. Zhao 1, D. Ortt 1 W. Wang 2 and J. Michalakas 2 1.

High-Resolution Simulation of Hurricane Bonnie (1998). Part II: Water Budget SCOTT A. BRAUN J. Atmos. Sci., 63,

Idealized Tropical Cyclone Structure. Tropical Cyclone Extension of the Warm Core middle –level vortex to the surface. Inducement of Ekman pumping Non-linear.

Meeting the challenge of obtaining and interpreting observations of deep convection in tropical disturbances and hurricanes by Ed Zipser, Jon Zawislak,

Rainbands and Secondary Eye Wall Formation as Observed in RAINEX Derek Ortt and Shuyi S. Chen University of Miami-RSMAS.

Floods in Pakistan and India 2010 Robert A. Houze, Jr. with S. Medina, U. Romatschke, K. Rasmussen, S. Brodzik, D. Niyogi, and A. Kumar Robert A. Houze,

VORTRAC – A Utility to Deduce Central Pressure and Radius of Maximum Wind of Landfalling Tropical Cyclones Using WSR-88D Data Wen-Chau Lee NCAR/EOL Paul.

1 Current and planned research with data collected during the IFEX/RAINEX missions Robert Rogers NOAA/AOML/Hurricane Research Division.

Ventilation of Tropical Cyclones Brian Tang ATM 741 3/21/16.

INNER CORE STRUCTURE AND INTENSITY CHANGE IN HURRICANE ISABEL (2003) Shuyi S. Chen and Peter J. Kozich RSMAS/University of Miami J. Gamache, P. Dodge,

Shuyi S. Chen Rosenstial School of Marine and Atmospheric Science University of Miami Overview of RAINEX Modeling of 2005 Hurricanes In the eye of Katrina.

Shuyi S. Chen, Robert A. Houze Bradley Smull, David Nolan, Wen-Chau Lee Frank Marks, and Robert Rogers Observational and Modeling Study of Hurricane Rainbands.

Evolution of Hurricane Isabel’s (2003) Vortex Structure and Intensity

Rosenstial School of Marine and Atmospheric Science

Robert Fovell Meteorology – Lecture 21 Robert Fovell

Derek Ortt1 and Shuyi S. Chen, RSMAS/University of Miami

Yumin Moon & David S. Nolan (2014)

AOS 101 Discussion Sections 302 and 303

M. D. Zuluaga and R. A. Houze, Jr. University of Washington

Conceptual Models of Tropical Cyclone Structures

University of Washington (with J. C. DeHart, D. Hence, A. C. Didlake)

Convective Contribution to Hurricane Genesis

Convective Contribution to the Genesis of Hurricane Ophelia (2005)

Spiral Rainbands in a Numerical Simulation of Hurricane Bill (2009)

Jennifer C. DeHart, Robert A. Houze, Jr. and Deanna A. Hence

Tropical Cyclone Structure

Jennifer C. DeHart, Robert A. Houze, Jr., and Robert F. Rogers

Pre-Monsoon Monsoon TRMM PR data reveal the nature of the convection producing extreme monsoon rains In the monsoon: Deep cores shift from Bengal to Pakistan.

Bell, M. M. , M. T. Montgomery, and W. -C

Comparison of secondary eyewall and principal rainband in Hurricane Rita (2005) Not a modeling study Several theories out there for secondary eyewall formation.

Tong Zhu and Da-Lin Zhang

Use of NRL P-3 and ELDORA in TCS-08/T-PARC

Western North Pacific Tropical Cyclone Formation and Structure Change

Presentation transcript:

RAINEX: Convective Structures in Tropical Cyclones Robert Houze D. Hence, A. Didlake, B. Smull, W.-C. Lee, M. Bell Hurricane Workshop NCAR Boulder 23 February 2010

Title Idealized hurricane structure

RAINEX (2005) Results Ophelia—genesis case Katrina—principal rainband Rita—double eyewall and moat

Ophelia

Convection During Ophelia Genesis ELDORA flight

Flight track with ELDORA

Convective Cell Shown by ELDORA

Convective contributions to genesis

Katrina

ELDORA flight along Principal Rainband

Principal Rainband

Obtained Statistics of the Cells in the Principal Rainband

Mean w in the Principal Rainband

Detail of a Cell in the Principal Rainband dBZ and Airflow Div & Vort W & vort V T & vort w dBZ

Consistent with the Idealization dBZ and Airflow Div & Vort W & Vort V T & Vort dBZ w Updrafts

Detail of a Cell in the Principal Rainband dBZ and Airflow Div & Vort W & vort V & vort w dBZ

Detail of Downdrafts in the Principal Rainband

dBZw VTVT  div Downdrafts

Rita

Double Eyewall of Rita

Better Understanding of the Moat

 Vorticity Distribution the 2 Eyewalls

Vorticity, Units: s -1  Units: s -1 Vorticity Distribution the 2 Eyewalls

Vertical Velocity in 2ndary Eyewall

RAINEX/ELDORA Findings About Convective Structures in Hurricanes Convection during Ophelia’s genesis – Deep – Wide – Intense – Rotating – Very little downdraft

RAINEX/ELDORA Findings About Convective Structures in Hurricanes Principal rainband in Katrina – Alternating convective-scale elements – Updraft cells feed vorticity into jet at 4 km – Inner-edge downdrafts strengthen low-level tangential flow inward of band

RAINEX/ELDORA Findings About Convective Structures in Hurricanes Eyewall replacement in Rita – Moat was taking on structure of an eye – Outer eyewall had an alternating cellular structure but not like principal rainband

End

Acknowledgment This research was supported by NSF grant ATM and NASA grant NNX07AD59G