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.

Slides:

Advertisements

Similar presentations

UK OZONE MONITORING AND RESEARCH Andy Chalmers UK Department for Environment Food and Rural Affairs 7 th ORM, 20 May 2008.

Advertisements

Imposed ozone calculations Qualitatively same behaviour in all models (which qualitiatively agrees with the observations). Significant quantitative differences.

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

23 rd ECRS The stratospheric polar vortex as a cause for the temporal variability of solar activity and galactic cosmic ray effects on the lower atmosphere.

Climate change in the Antarctic. Turner et al, Significant warming of the Antarctic Winter Troposphere. Science, vol 311, pp Radiosonde.

The influence of the stratosphere on tropospheric circulation and implications for forecasting Nili Harnik Department of Geophysics and Planetary Sciences,

2011 SuperDARN Workshop, Hanover, NH 1 Solar cycle variability of atmospheric waves and tides as observed by SuperDARN Elsayed R. Talaat Johns Hopkins.

A Cloud Resolving Model with an Adaptive Vertical Grid Roger Marchand and Thomas Ackerman - University of Washington, Joint Institute for the Study of.

Centro de Investigaciones en Láseres y Aplicaciones (LASER RESEARCH CENTER AND APPLICATIONS ) (CITEFA-CONICET) Buenos Aires - Argentina Collaboration between.

Pei-Yu Chueh 2010/7/1.  From 1948 to 2005 for DJF found decreases over the Arctic, Antarctic and North Pacific, an increase over the subtropical North.

Chemistry and Transport in the Lower Stratosphere Wuhu Feng 1, Martyn Chipperfield 1, Howard Roscoe 2 1. Institute for Atmospheric Science, School of the.

Diagnosis of the Ozone Budget in the SH Lower Stratosphere Wuhu Feng and Martyn Chipperfield School of the Environment, University of Leeds, Leeds, UK,

Bay Area Earth Science Institute (BAESI)

Identifying and Modeling Coronal Holes Observed by SDO/AIA, STEREO /A and B Using HMI Synchronic Frames X. P. Zhao, J. T. Hoeksema, Y. Liu, P. H. Scherrer.

Solar Forcing on Climate Through Stratospheric Ozone Change Le Kuai.

The Anthropogenic Ocean Carbon Sink Alan Cohn March 29, 2006

1 NGGPS Dynamic Core Requirements Workshop NCEP Future Global Model Requirements and Discussion Mark Iredell, Global Modeling and EMC August 4, 2014.

Studies of Stratospheric NO y Chemistry with Three- Dimensional Chemical Transport Model Wuhu Feng 1, Martyn Chipperfield 1, Stewart Davies 1, B. Sen 2,

Meto 637 Lesson 11. The Ozone Hole Antarctic total ozone.

Focus on High Latitudes State of the Antarctic & Southern Ocean Climate System Authors: P. A. Mayewski, M. P. Meredith, C. P. Summerhayes, J. Turner, A.

Effect of Stratospheric Water Vapor Change on Ozone Layer and Climate Wenshou Tian Martyn P. Chipperfield 1 Collage of the Atmospheric Science Lanzhou.

Understanding jet streams. What are jet streams? Jet streams are narrow, fast- moving air currents (winds). They are found at high altitude, at the boundary.

Question and Answer Session Related to the Weather photo: D. Martin Douglas K. Miller Professor and Chair Atmospheric Sciences Department UNC Asheville.

Figure 1 Figure 8 Figure 9Figure 10 Altitude resolved mid-IR transmission of H 2 O, CH 4 and CO 2 at Mauna Loa Anika Guha Atmospheric Chemistry Division,

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

Impacts of cyclones over the Argentinean coast Claudia M. Campetella Departamento de Ciencias de la Atmósfera y los Océanos Universidad de Buenos Aires.

Y. J. ORSOLINI Norwegian Institute for Air Research – NILU C. RANDALL LASP, University of Colorado, Boulder, USA G. MANNEY NASA Jet Propulsion.

How is total ozone distributed over the globe?

Importance of Winds for Climate and Stratospheric Processes Mike Hardesty NOAA Earth System Research Lab Boulder, CO

6.4.8: Explain how convection affects weather patterns and climate.

1.Introduction 2.Description of model 3.Experimental design 4.Ocean ciruculation on an aquaplanet represented in the model depth latitude depth latitude.

Operation of Backscatter Lidar at Buenos Aires (34.6 S / 58.5 W) for the Retrieval and Analysis the Atmospheric Parameters in Cirrus Clouds, Tropopause.

Quasi-stationary planetary wave long-term changes in total ozone over Antarctica and Arctic A.Grytsai, O.Evtushevsky, O. Agapitov, A.Klekociuk, V.Lozitsky,

Future Climate Projections. Lewis Richardson ( ) In the 1920s, he proposed solving the weather prediction equations using numerical methods. Worked.

By: Justin Woodfin. The Basics The atmosphere is a mixture of gases that surrounds the earth. The atmosphere contains the oxygen we need to breathe it.

Sensitivity of Antarctic climate to the distribution of ozone depletion Nathan Gillett, University of East Anglia Sarah Keeley, University of East Anglia.

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

Objective Data  The outlined square marks the area of the study arranged in most cases in a coarse 24X24 grid.  Data from the NASA Langley Research Center.

The effect of pyro-convective fires on the global troposphere: comparison of TOMCAT modelled fields with observations from ICARTT Sarah Monks Outline:

SPARC-IPY (Activity No 217) The Structure and Evolution of the Polar Stratosphere and Mesosphere and Links to the Troposphere during IPY

HIRDLS Ozone V003 (v ) Characteristics B. Nardi, C. Randall, V.L. Harvey & HIRDLS Team HIRDLS Science Meeting Boulder, Jan 30, 2008.

An alternative mechanistic model of the Antartic polar vortex Walter Legnani 1, Rolando Garcia 2, Pablo Jacovkis 3, Murry Salby 4, and Pablo Canziani 5,6.

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

1 Ozone depletion: Misconceptions Misconceptions Meteorology 10 De Anza College.

Acoustic-gravity wave monitoring for global atmospheric studies Elisabeth Blanc 1 Alexis Le Pichon 1 Lars Ceranna 2 Thomas Farges 1 2- BGR / B3.11, Hannover,

The Layered Atmosphere The Earth's atmosphere contains several different layers that can be defined according to air temperature temperature.

Ko pplung von Dy namik und A tmosphärischer C hemie in der S tratosphäre total ozone fluctuations related to different influences Global Maps Mechanisms.

THE INTERANNUAL SPATIAL VARIABILITY OF THE SOUTHERN HEMISPHERE TOTAL OZONE COLUMN MIDLATITUDE MAXIMUM: AN INDICATOR OF TROPOSPHERIC- STRATOSPHERIC COUPLED.

Measuring the Antarctic Ozone Hole with the new Ozone Mapping and Profiler Suite (OMPS) Natalya Kramarova, Paul Newman, Eric Nash, PK Bhartia, Richard.

National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Tropospheric Emission Spectrometer Studying.

The Influence of loss saturation effects on the assessment of polar ozone changes Derek M. Cunnold 1, Eun-Su Yang 1, Ross J. Salawitch 2, and Michael J.

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

Dynamical Impacts of Antarctic Stratospheric Ozone Depletion on the Extratropical Circulation of the Southern Hemisphere Kevin M. Grise David W.J. Thompson.

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

UTLS Workshop Boulder, Colorado October , 2009 UTLS Workshop Boulder, Colorado October , 2009 Characterizing the Seasonal Variation in Position.

Development and Applications of the TOMCAT/SLIMCAT 3-D CTM Wuhu Feng and Martyn Chipperfield NCAS, School of Earth and Environment, University of Leeds,

The ENSO Signal in Stratospheric Temperatures from Radiosonde Observations Melissa Free NOAA Air Resources Lab Silver Spring 1.

The impact of solar variability and Quasibiennial Oscillation on climate simulations Fabrizio Sassi (ESSL/CGD) with: Dan Marsh and Rolando Garcia (ESSL/ACD),

THE INFLUENCE OF THE 11-YEAR SOLAR CYCLE ON THE STRATOSPHERE BELOW 30KM: A REVIEW H. VAN LOON K. LABITZKE 2010/04/13 Pei-Yu Chueh.

Figure 1 Figure 8 Figure 9Figure 10 Altitude resolved mid-IR transmission of H 2 O, CH 4 and CO 2 at Mauna Loa Anika Guha Atmospheric Chemistry Division,

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

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

THIS IS With Host... Your Modified T/F Modified T/F Multiple Choice Multiple Choice Completion.

How Convection Currents Affect Weather and Climate.

Effects of January 2010 stratospheric sudden warming in the low-latitude ionosphere L. Goncharenko, A. Coster, W. Rideout, MIT Haystack Observatory, USA.

Environmental Sciences Course Air Pollution and Climate Change

Pogoreltsev A., Ugrjumov A..

Global Climates and Biomes

METO 637 Lesson 12.

RESULTS AND DISCUSSION

Presentation transcript:

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 O'Neill 4, and Nikolaos Nikiforakis 5 1 Instituto de Cálculo - Universidad de Buenos Aires - Argentina 2 Programa de Estudios de Procesos Atmosféricos en el Cambio Global –Pontificia Universidad Católica Argentina/CONICET – Argentina 3 Departamento de Ciencias de la Atmosfera y los Océanos, Universidad de Buenos Aires/CONICET - Argentina 4 University of Reading - U.K. 5 University of Cambridge - U. K. A new Adaptive Mesh Refinement transport code is used for the first time to model the Southern Hemisphere stratosphere during a highly perturbed period that led to the unprecedent Antarctic sudden warming event during This warming led to the splitting of the vortex/ozone hole system. Nevertheless this splitting process is only very distinct at the top and bottom of the region considered, i.e. in the middle stratosphere and the lowermost stratosphere. The AMR code is capable of reproducing the fine structure of the system under study, in good agreement with the GOME assimilated total ozone and the broad fine structures detectable in PV calculations from the NCEP reanalysis. The model results were able to detect significant mixing process, through lamination between the vortex and the surrounding atmosphere. Finally the evolution of the vortex in the lowermost stratosphere confirms the influence of synoptic scale perturbations in the dynamics of the region The study case The southerm vortex split in 2002 Why Adaptive Meshes ? Because of the physics and chemistry that must be resolved! If the processes happen on a certain scale and if they are important for your model and if you cannot account for this physics and chemistry by subgrid-scale modeling … you must resolve the problem at the scale involved. The AMR Model Results – The Evolution of 2002 Vortex Splitting at 850K as an Example 850K K K K K K K K K K SUMMING UP AMR schemes are very efficient during the integration of transport equations to study fine scale structures. They require low hardware resources. The adaptation criteria involve the physics of the participating processes. The vortex splitting was a phenomena with a strong 3D characterisation The filaments of the lobes and the inner mixing zones were put in evidence only with the model more than any other kind of observations. Particularly interesting is the difference between the splitting, separation and dilution of one of the lobes at the upper and lower limits of the vertical range, and the apparent re-merger and delayed dilution of the smaller lobe in the centre of the vertical domain with respect to the other two levels. The comparison of the EP-flux evolution for waves 1 and 2 (not shown) with the sequence of model PV fields shows the pre-eminence of wave 2 in the whole process, while wave 1 is primarily responsible for displacing the whole system off the polar region into mid latitudes where the solar radiation further contributed to the warming and weakening of the vortex and its remains.