HIRDLS Science Meeting 1 26 June 2008 A Comparison of HIRDLS and the Hadley Centre Model: Extratropical Variability University of Oxford Scott Osprey,

Slides:

Advertisements

Similar presentations

What’s quasi-equilibrium all about?

Advertisements

Moisture Transport in Baroclinic Waves Ian Boutle a, Stephen Belcher a, Bob Plant a Bob Beare b, Andy Brown c 24 April 2014.

Institut für Physik der Atmosphäre Institut für Physik der Atmosphäre Climate-Chemistry Interactions - User Requirements Martin Dameris DLR-Institut für.

9-10 November 2011 Atmospheric Waves Workshop, ESTEC Atmospheric Waves Workshop Scott Osprey 1, Corwin Wright 2 Evidence of atmospheric gravity waves and.

Decadal Variation of the Holton-Tan Effect Hua Lu, Thomas Bracegirdle, Tony Phillips, Andrew Bushell DynVar/SNAP Workshops, April, 2013, Reading,

Ocean’s Role in the Stratosphere-Troposphere Interaction Yulia A. Zyulyaeva Moscow State University P.P.Shirshov Institute of Oceanology, RAS, Moscow 1/17.

REFERENCES Alexander et al (2008): Global Estimates of Gravity Wave Momentum Flux from HIRDLS Observations. JGR 113 D15S18 Ern et al (2004): Absolute Values.

The coupled stratosphere-troposphere response to impulsive forcing from the troposphere Thomas J. Reichler Geophysical Fluid Dynamics Laboratory / Princeton.

How does the QBO affect the stratospheric polar vortex? Peter Watson, Lesley Gray Atmospheric, Oceanic and Planetary Physics, Oxford University Peter Watson.

Scientific Advisory Committee Meeting, November 25-26, 2002 Modeling of the Middle and Upper Atmosphere M. A. Giorgetta E. Manzini 1, M. Charron 2, H.

The EISCAT_3D Science Case: Atmospheric Section Ian McCrea STFC RAL.

Atmospheric Circulation: Thermal Structure and the Mesospheric Refrigerator How do Atmospheric Gravity Waves couple to the mean circulation to produce.

The Quasi Biennial Oscillation Examining the link between equatorial winds and the flow regime of the wintertime polar stratosphere Charlotte Pascoe.

Indirect Determination of Surface Heat Fluxes in the Northern Adriatic Sea via the Heat Budget R. P. Signell, A. Russo, J. W. Book, S. Carniel, J. Chiggiato,

National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Pasadena, California Atmospheric Infrared Sounder.

Solar Forcing on Climate Through Stratospheric Ozone Change Le Kuai.

Can we trust the simulated gravity-wave response to climate change? Ted Shepherd Department of Physics University of Toronto NCAR TIIMES Gravity-Wave Retreat,

Influence of the Brewer-Dobson Circulation on the Middle/Upper Tropospheric O 3 Abstract Lower Stratosphere Observations Models

Experiments with WACCM: A sensitivity study. OUTLINE Why is a parameterization of gravity waves important? Middle atmosphere (stratosphere + mesosphere)

The General Circulation of the Atmosphere Tapio Schneider.

Assimilation of EOS-Aura Data in GEOS-5: Evaluation of ozone in the Upper Troposphere - Lower Stratosphere K. Wargan, S. Pawson, M. Olsen, J. Witte, A.

Variability of Tropical to Extra-tropical Transport in the Lower Stratosphere Mark Olsen UMBC/GSFC Anne Douglass, Paul Newman, and Eric Nash.

Influence of the sun variability and other natural and anthropogenic forcings on the climate with a global climate chemistry model Martin Schraner Polyproject.

Dynamical control of ozone transport and chemistry from satellite observations and CCMs Mark Weber 1, Ingo Wohltmann 2, Veronika Eyring 3, Markus Rex 2,

Solar Variability and Climate: From Mechanisms to Models

CHEM Science Team March 2000 Cloud processes near the tropopause HIRDLS will measure cloud top altitude and aerosol concentrations: the limb view gives.

© Imperial College LondonPage 1 Solar Influence on Stratosphere-Troposphere Dynamical Coupling Isla Simpson, Joanna D. Haigh, Space and Atmospheric Physics,

Benjamin A. Schenkel 1 Lance F. Bosart 1, Daniel Keyser 1, and Robert E. Hart 2 1 University at Albany,

© Crown copyright Met Office Met Office dust forecasting Using the Met Office Unified Model™ David Walters: Manager Global Atmospheric Model Development,

Using a novel coupled-model framework to reduce tropical rainfall biases Nicholas Klingaman Steve Woolnough, Linda Hirons National Centre for Atmospheric.

SPARC - Stratospheric Network for the Assessment of Predictability (SPARC-SNAP) SPARC-SNAP Team Om P Tripathi, Andrew Charlton-Perez, Greg Roff, Mark Baldwin,

Analysis of a simulation with prognostic ozone in ARPEGE-Climat Jean-François Royer, Hubert Teysseidre, Hervé Douville, Sophie Tyteca Meteo-France,

EOS CHEM. EOS-CHEM Platform Orbit: Polar: 705 km, sun-synchronous, 98 o inclination, ascending 1:45 PM +/- 15 min. equator crossing time. Launch date.

1 HIRDLS Science Team Meeting 26,27 June 2008 To be held in the Dobson Room, Atmospheric, Oceanic and Planetary Physics, Department of Physics, Oxford.

Sun-Climate Mechanisms Marvin A. Geller Stony Brook University Stony Brook, NY Marvin A. Geller Stony Brook University Stony Brook, NY

Polar Prediction The Scientific Challenges - Antarctica John Turner British Antarctic Survey Cambridge, UK.

REFERENCES Alexander et al (2008): Global Estimates of Gravity Wave Momentum Flux from HIRDLS Observations. JGR 113 D15S18 Ern et al (2004): Absolute Values.

The status and development of the ECMWF forecast model M. Hortal, M. Miller, C. Temperton, A. Untch, N. Wedi ECMWF.

For more information about this poster please contact Gerard Devine, School of Earth and Environment, Environment, University of Leeds, Leeds, LS2 9JT.

Aircraft, Satellite Measurements and Numerical Simulations of Gravity Waves in the Extra-tropical UTLS Region Meng Zhang, Fuqing Zhang and Gang Ko Penn.

Cargese UTLS ozone and ozone trends 1 UTLS ozone and ozone trends D. Fonteyn (My apologies) Given by W. Lahoz (My thanks)

UTLS Transport & STE Summary “Finding Nemo” Gettelman, Neu, Mullendore.

The use of an Adaptive Mesh Refinement Transport Code to study the 2002 Antarctic polar vortex evolution Walter E. Legnani 1, Pablo O. Canziani 2,3, Alan.

REFERENCES Alexander et al (2008): Global Estimates of Gravity Wave Momentum Flux from HIRDLS Observations. JGR 113 D15S18 Ern et al (2004): Absolute Values.

Stratosphere-Troposphere Analyses of Regional Transport (START) Experiment Investigators: Laura Pan (PI) Andy Weinheimer (Integration and Payload) Rushan.

First global view of the Extratropical Tropopause Transition Layer (ExTL) from the ACE-FTS Michaela I. Hegglin, University of Toronto, CA Chris Boone,

Model evolution of a START08 observed tropospheric intrusion Dalon Stone, Kenneth Bowman, Cameron Homeyer - Texas A&M Laura Pan, Simone Tilmes, Doug Kinnison.

Dynamical Influence on Inter-annual and Decadal Ozone Change Sandip Dhomse, Mark Weber,

UTLS Chemical Structure, ExTL Summary of the talks –Data sets –Coordinates –Thickness of the ExTL (tracers based) Outstanding questions Discussion.

Mesoscale processes in the polar atmosphere – the context Suzanne Gray University of Reading February 2013.

Contrasting potential vorticity structures in two summer extratropical cyclones Oscar Martínez-Alvarado NCAS-Atmospheric Physics Sue Gray John Methven.

1. Abstract An examination is made of parameterised gravity waves in the Hadley Centre’s HadGEM2-A L60 and small-scale gravity waves retrieved from HIRDLS-AURA.

Page 1© Crown copyright 2006 Boundary layer mechanisms in extra-tropical cyclones Bob Beare.

Day Meridional Propagation of Global Circulation Anomalies ( A Global Convection Circulation Paradigm for the Annular Mode) Ming Cai 1 and R-C.

Dynamical control of ozone transport and chemistry from satellite observations and coupled chemistry climate models Mark Weber 1, Sandip Dhomse 1, Ingo.

High resolution models: Tropical Convection and Transport through the Tropical Tropopause Layer Maria Russo, Scott Hosking, Peter Braesicke, John Pyle.

WACCM STATUS August 28 th, UCAR Quarterly – winter 1999.

WAVE DYNAMICS OF THE STRATOSPHERE AND MESOSPHERE Andrew Moss Centre for Space, Atmospheric and Oceanic Science, University of Bath.

The origin of stratospheric ozone in sensitivity studies with EMAC-FUB EGU – European Geosciences Union General Assembly 2011 Vienna S. Meul 1), S. Oberländer.

Status of CAM, March 2004 Phil Rasch. Differences between CAM2 and CAM3 (standard physics version) Separate liquid and ice phases Advection, sedimentation.

Pogoreltsev A., Ugrjumov A..

3rd Antarctic Gravity Wave Instrument Network

End of Semester Groupmeeting

Static Stability in the Global UTLS Observations of Long-term Mean Structure and Variability using GPS Radio Occultation Data Kevin M. Grise David W.

A New Tropopause Definition for Use in Chemistry-Transport Models

Dynamical downscaling of ERA-40 with WRF in complex terrain in Norway – comparison with ENSEMBLES U. Heikkilä, A. D. Sandvik and A.

Why Should We Care About the Stratosphere?

Extratropical stratoshere-troposphere exchange in a 20-km-mesh AGCM

Ling Wang and M. Joan Alexander

Winter climate change and stratosphere-troposphere interaction

Presentation transcript:

HIRDLS Science Meeting 1 26 June 2008 A Comparison of HIRDLS and the Hadley Centre Model: Extratropical Variability University of Oxford Scott Osprey, Corwin Wright, John Barnett, Lesley Gray

26 June 2008HIRDLS Science Meeting2 Overview HIRDLS Scientific Objectives HIRDLS Scientific Objectives Case-Study: NH Stratosphere, February 2006 Case-Study: NH Stratosphere, February 2006 Stratosphere resolving Met Office GCM, MetUM L60 Stratosphere resolving Met Office GCM, MetUM L60 Model Runs: Can we model these winters? Model Runs: Can we model these winters? Conclusion and Future work Conclusion and Future work

26 June 2008HIRDLS Science Meeting3 HIRDLS: Scientific Objectives Understand chemical processes, transports and mixing in the upper-troposphere/lower stratosphere. Understand chemical processes, transports and mixing in the upper-troposphere/lower stratosphere. Understand stratosphere-troposphere exchange of a variety of gases/aerosols at a fine scales Understand stratosphere-troposphere exchange of a variety of gases/aerosols at a fine scales Better evaluate the budgets of; momentum, energy, heat and PV, which help mitigate this exchange Better evaluate the budgets of; momentum, energy, heat and PV, which help mitigate this exchange To provide data to help constrain and validate models. To provide data to help constrain and validate models.

26 June 2008HIRDLS Science Meeting4 NH Winter Temperatures 2005 &2006

26 June 2008HIRDLS Science Meeting5 NH Winter Zonal Wind 2005 &2006

26 June 2008HIRDLS Science Meeting6 NH Winter Zonal Wind 2005 &2006 (HIRDLS)

26 June 2008HIRDLS Science Meeting7 HIRDLS Gravity Waves Missing gravity waves?

26 June 2008HIRDLS Science Meeting8 Are the circulation changes related to the change in gravity wave activity seen by HIRDLS?

26 June 2008HIRDLS Science Meeting9 The New Dynamics Unified Model Solves a non-hydrostatic, semi-Lagrangian system using a semi-implicit time-stepping scheme Solves a non-hydrostatic, semi-Lagrangian system using a semi-implicit time-stepping scheme Thought better able to accommodate changes in spatial resolution. Thought better able to accommodate changes in spatial resolution. Arakawa C-grid with Charney-Philips staggering in the vertical (‘scalar’: θ, w, tracers; ‘vector’: P, ρ, u) Arakawa C-grid with Charney-Philips staggering in the vertical (‘scalar’: θ, w, tracers; ‘vector’: P, ρ, u) Will also be able to better resolve particular phenomena. Will also be able to better resolve particular phenomena.

26 June 2008HIRDLS Science Meeting10 MetUM L60 Vertical Resolution ~35 Levels in stratosphere (MetUM L60) 1km vertical resolution in stratosphere (HIRDLS)

26 June 2008HIRDLS Science Meeting11 Model Run Setup Horizontal resolution 2.5 x 3.75 Horizontal resolution 2.5 x x 25 year runs ( ) 4 x 25 year runs ( ) Contemporaneous SSTs, CO 2, methane, CFCs Contemporaneous SSTs, CO 2, methane, CFCs Climatological ozone Climatological ozone Spectral & orographic gravity wave schemes (USSP) Spectral & orographic gravity wave schemes (USSP) Methane oxidation Methane oxidation

26 June 2008HIRDLS Science Meeting12 MetUM L60 Temperature

26 June 2008HIRDLS Science Meeting13 MetUM L60 Zonal Wind

26 June 2008HIRDLS Science Meeting14 Residual Mean Meridional Wind

26 June 2008HIRDLS Science Meeting15 Residual Mean Vertical Wind

26 June 2008HIRDLS Science Meeting16 Eliassen-Palm Flux

26 June 2008HIRDLS Science Meeting17 MetUM L60 GW Momentum Fluxes EastwardWestward Northward Southward

26 June 2008HIRDLS Science Meeting18

26 June 2008HIRDLS Science Meeting19 MetUM L60 Gravity Waves

26 June 2008HIRDLS Science Meeting20 Summary NH winter 2006 characterised by unusually elevated stratopause over pole. NH winter 2006 characterised by unusually elevated stratopause over pole. Linked with this was an anomalously strong vortex in the upper stratosphere overlying anomalously weak zonal winds in the lower stratosphere. Linked with this was an anomalously strong vortex in the upper stratosphere overlying anomalously weak zonal winds in the lower stratosphere. HIRDLS has observed reduced GW activity entering the lower stratosphere during these times. HIRDLS has observed reduced GW activity entering the lower stratosphere during these times. GCM studies have linked similar reductions in GW activity during similar events. These link with circulations in the upper stratosphere/lower mesosphere which help maintain the winter polar stratospause. GCM studies have linked similar reductions in GW activity during similar events. These link with circulations in the upper stratosphere/lower mesosphere which help maintain the winter polar stratospause.