Senior Scientist Numerical Methods
Research, Earth System Modelling, Numerical Methods
Summary:
Inna joined numerical methods group at ECMWF in September 2018. Her research focuses on improving the representation of resolved dynamical processes in the IFS dynamical core.
Professional interests:
- Dynamical core development: improving the representation of resolved dynamical processes in high resolution models
- Large-scale dynamics
- Gravity wave dynamics: resolved and parametrized
- Stratospheric modelling, and, stratosphere-troposphere interactions
- Planetary atmospheres
Career background:
EMPLOYMENT:
- Nov 2016 - Sep 2018: ECMWF
Visiting Scientist, Earth System Modelling Section - Aug 2014-Sep 2018: Department of Meteorology, University of Reading
Post Doctoral Research AssociatePrincipal Investigator: Ted Shepherd
EDUCATION AND PROFESSIONAL EXPERIENCE:
- Oct 2010 - Dec 2014: PhD at Queen Mary, University of London, UK
Department: School of Physics and Astronomy.
Thesis: Baroclinic Jets on “Other” Jupiters and Earths
Advisor: James Y-K Cho -
Sep 2006 - Jun 2010: MSci at Queen Mary, University of London, UKDepartment: Mathematics with StatisticsThesis: Baroclinic Instability on Hot Extrasolar Giant Planets
Advisor: James Y-K Cho - Jun 2009 - Aug 2009: Internship in Data Assimilation at the Met Office, UK
Role: Investigated generation of global background error covariance matrices via ensemble-driven methods for implementation in four dimensional variational data assimilation.
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Jun 2008 - Aug 2008: Internship in the Health Team at the Met Office, UK
Role: Analysed the impact of Finnish weather on chronic obstructive pulmonary disease patients using statistical methods.
TEACHING AND SUPERVISION:
- Apr 2018 - July 2018: Supervisor of MSc project at the University of Reading.
- Oct 2017 - Jan 2018: Principal investigator (together with Ted Shepherd) of Nick Byrne at the University of Reading.
- Jan 2013: Guest lecturer for the Extrasolar Planets and Astrophysical Disks module, Queen Mary University of London.
- Oct 2010-Jun 2014: Teaching assistant for the following modules: Complex Variables, Calculus I & II,
Introduction to Mathematical Computing, Differential Equations, Our Universe and Mathematical Techniques III. Queen Mary, University of London
External recognitions
- Associate editor for MWR
- Award for Excellence from the Department of Meteorology at the University of Reading. 1000 GBP.
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Reviewer for Quarterly Journal of the Royal Meteorological Society, Climate Dynamics, Journal of Atmospheric Sciences, Atmospheric Chemistry and Physics, JAMES, MWR, Astrophysical Journal, and Planetary and Space Science
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Organizer of the Momentum Budget and its Role in Weather and Climate Workshop, Apr 2015.
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Affiliate member at the Kavli Institute for Theoretical Physics programme in Wave-Flow Interaction in Geophysics, Climate, Astrophysics, and Plasmas, Santa Barbara, USA
- Travel grants from: Royal Astronomical Society, UK Space Agency/STFC , CR Barber Trust Fund, Royal Meteorological Society Legacies Fun, Queen Mary, University of London Postgraduate Research Fun, Institute of Physics
- The Emil Aaltonen Foundation Young Researcher Grant to fund PhD, awarded for 2010-2013 but declined to take up STFC funded PhD studentship.
- Westfield Trust Prize for Outstanding Academic Achievement in Mathematics – awarded for three consecutive years, 2008, 2009 & 2010.
INVITED TALKS/SEMINARS:
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Ludwig Maximilian University, Munich, Germany
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DLR, Oberpfaffenhofen, Germany
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Finnish Meteorological Institute, Helsinki, Finland
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University of Reading, Reading, UK
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ECMWF, Reading, UK
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MPI for Physics and Complex Systems, Dresden, Germany
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University of Oxford, AOPP, UK
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City University, London, UK
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University of Exeter, UK
- 2025
- Neil Hindley, M. Joan Alexander, Martina Bramberger, Manfred Ern, Lars Hoffmann, Laura Holt, Riwal Plougonven, Inna Polichtchouk, Claudia Stephan, Annelize van Niekerk, Corwin Wright (January 2025) How realistic are resolved gravity waves in ERA5 reanalysis compared to satellite observations?. DOI: 10.5194/egusphere-egu24-21740
- Sebastian Rhode, Manfred Ern, Peter Preusse, Jörn Ungermann, Inna Polichtchouk, Kaoru Sato, Shingo Watanabe, Wolfgang Woiwode, Martin Riese (January 2025) Global scale gravity wave observations and analysis with the ESA Earth Explorer 11 candidate CAIRT. DOI: 10.5194/egusphere-egu24-9572
- Bernd Funke, Martyn Chipperfield, Quentin Errera, Felix Friedl-Vallon, Sophie Godin-Beekmann, Michael Hoepfner, Alex Hoffmann, Alizee Malavart, Scott Osprey, Inna Polichtchouk, Peter Preusse, Piera Raspollini, Björn-Martin Sinnhuber, Pekka Verronen, Kaley Walker (January 2025) The Changing-Atmosphere Infra-Red Tomography Explorer (CAIRT) Earth Explorer 11 candidate mission. DOI: 10.5194/egusphere-egu24-20214
- Benoît Vannière, Irina Sandu, Peter Dueben, Richard Forbes, Inna Polichtchouk, Annelize Van Niekerk, Birgit Sützl, Michail Diamantakis, Jasper Denissen, Estibaliz Gascon, Michael Maier-Gerber, Llorenç Lledo, Ivan Bastak-Duran, Aristofanis Tsiringakis, Tobias Becker, Josef Schröttle, Ziga Zaplotnik (January 2025) The Global Extremes Digital Twin of Destination Earth: successes and challenges. DOI: 10.5194/egusphere-egu24-20097
- 2024
- Sebastian Rhode, Peter Preusse, Jörn Ungermann, Inna Polichtchouk, Kaoru Sato, Shingo Watanabe, Manfred Ern, Karlheinz Nogai, Björn-Martin Sinnhuber, Martin Riese (April 2024) Global scale gravity wave analysis methodology for the ESA Earth Explorer 11 candidate CAIRT. DOI: 10.5194/egusphere-2024-1084
- Sebastian Rhode, Peter Preusse, Jörn Ungermann, Inna Polichtchouk, Kaoru Sato, Shingo Watanabe, Manfred Ern, Karlheinz Nogai, Björn-Martin Sinnhuber, Martin Riese (October 2024) Global-scale gravity wave analysis methodology for the ESA Earth Explorer 11 candidate CAIRT, Atmospheric Measurement Techniques. DOI: 10.5194/amt-17-5785-2024
- Alexey Yu. Karpechko, Frederic Vitart, Irina Statnaia, Magdalena Alonso Balmaseda, Andrew James Charlton‐Perez, Inna Polichtchouk (April 2024) The tropical influence on sub‐seasonal predictability of wintertime stratosphere and stratosphere–troposphere coupling, Quarterly Journal of the Royal Meteorological Society. DOI: 10.1002/qj.4649
- Rachel W.-Y. Wu, Gabriel Chiodo, Inna Polichtchouk, Daniela I. V. Domeisen (June 2024) Tropospheric Links to Uncertainty in Stratospheric Subseasonal Predictions. DOI: 10.5194/egusphere-2024-1652
- Rachel W.-Y. Wu, Gabriel Chiodo, Inna Polichtchouk, Daniela I. V. Domeisen (November 2024) Tropospheric links to uncertainty in stratospheric subseasonal predictions, Atmospheric Chemistry and Physics. DOI: 10.5194/acp-24-12259-2024
- 2023
- Inna Polichtchouk, Annelize van Niekerk, Nils Wedi (February 2023) Resolved Gravity Waves in the Extratropical Stratosphere: Effect of Horizontal Resolution Increase from O(10) to O(1) km, Journal of the Atmospheric Sciences. DOI: 10.1175/JAS-D-22-0138.1
- Wolfgang Wicker, Inna Polichtchouk, Daniela I. V. Domeisen (January 2023) Increased vertical resolution in the stratosphere reveals role of gravity waves after sudden stratospheric warmings, Weather and Climate Dynamics. DOI: 10.5194/wcd-4-81-2023
- 2022
- Inna Polichtchouk, Nils Wedi, Young‐Ha Kim (January 2022) Resolved gravity waves in the tropical stratosphere: Impact of horizontal resolution and deep convection parametrization, Quarterly Journal of the Royal Meteorological Society. DOI: 10.1002/qj.4202
- Erika Monnin, Marlene Kretschmer, Inna Polichtchouk (May 2022) The role of the timing of sudden stratospheric warmings for precipitation and temperature anomalies in Europe, International Journal of Climatology. DOI: 10.1002/joc.7426
- Sonja Gisinger, Inna Polichtchouk, Andreas Dörnbrack, Robert Reichert, Bernd Kaifler, Natalie Kaifler, Markus Rapp, Irina Sandu (July 2022) Gravity‐Wave‐Driven Seasonal Variability of Temperature Differences Between ECMWF IFS and Rayleigh Lidar Measurements in the Lee of the Southern Andes, Journal of Geophysical Research: Atmospheres. DOI: 10.1029/2021JD036270
- Erika Monnin, Marlene Kretschmer, Inna Polichtchouk (February 2022) The role of the timing of sudden stratospheric warmings for precipitation and temperature anomalies in Europe. DOI: 10.31223/X5DS4K
- Wolfgang Wicker, Inna Polichtchouk, Daniela I. V. Domeisen (July 2022) Increased vertical resolution in the stratosphere reveals role of gravity waves after sudden stratospheric warmings. DOI: 10.5194/wcd-2022-41
- 2021
- Mark John Rodwell, Michail Diamantakis, Peter Dueben, Martin Janousek, Simon Lang, Inna Polichtchouk, Fernando Prates, Chris Roberts, Filip Vána (July 2021) IFS upgrade provides more skilful ensemble forecasts, ECMWF Newsletter, issue 168, pp. 18-23. DOI: 10.21957/m830hnz27r
- Linus Magnusson, Sharanya Majumdar, Rebecca Emerton, David Richardson, Magdalena A. Balmaseda, Calum Baugh, Peter Bechtold, Jean Bidlot, Antonino Bonanni, Massimo Bonavita, Niels Bormann, Andy Brown, Philip Browne, Hilda Carr, Mohamed Dahoui, Giovanna De Chiara, Michail Diamantakis, David I. Duncan, Stephen English, Richard Forbes, Alan Geer, Thomas Haiden, Sean Healy, Timothy Hewson, Bruce Ingleby, Martin Janousek, Christian Kühnlein, Simon Lang, Sarah-Jane Lock, Tony McNally, Kristian S. Mogensen, Florian Pappenberger, Inna Polichtchouk, Fernando Prates, Christel Prudhomme, Florence Rabier, Patricia de Rosnay, Tiago Quintino, Michael Rennie (October 2021) Tropical cyclone activities at ECMWF, ECMWF Technical Memoranda n. 888. DOI: 10.21957/zzxzzygwv
- Inna Polichtchouk, Peter Bechtold, Massimo Bonavita, Richard Forbes, Sean Healy, Robin Hogan, Patrick Laloyaux, Michael Rennie, Timothy Stockdale, Nils Wedi, Michail Diamantakis, Johannes Flemming, Stephen English, Lars Isaksen, Filip Vána, Sonja Gisinger, Nicholas Byrne (January 2021) Stratospheric modelling and assimilation, ECMWF Technical Memoranda n. 877. DOI: 10.21957/25hegfoq
- Ryan Williams, Robin Hogan, Inna Polichtchouk, Michaela Hegglin, Timothy Stockdale, Johannes Flemming (October 2021) Evaluating the impact of prognostic ozone in IFS NWP forecasts, ECMWF Technical Memoranda n. 887. DOI: 10.21957/rakfo1qo3
- Graeme Marlton, Andrew Charlton-Perez, Giles Harrison, Inna Polichtchouk, Alain Hauchecorne, Philippe Keckhut, Robin Wing, Thierry Leblanc, Wolfgang Steinbrecht (April 2021) Using a network of temperature lidars to identify temperature biases in the upper stratosphere in ECMWF reanalyses, Atmospheric Chemistry and Physics. DOI: 10.5194/acp-21-6079-2021
- 2020
- Inna Polichtchouk, Sylvie Malardel, Michail Diamantakis (August 2020) Potential temperature as a prognostic variable in hydrostatic semi-implicit semi-Lagrangian IFS, ECMWF Technical Memoranda n. 869. DOI: 10.21957/ss3tvs4yq
- Inna Polichtchouk, Michail Diamantakis, Filip Vána (April 2020) Quintic vertical interpolation improves forecasts of the stratosphere, ECMWF Newsletter, issue 163, pp. 23-26. DOI: 10.21957/ip52yu935j
- Lisa‐Ann Kautz, Inna Polichtchouk, Thomas Birner, Hella Garny, Joaquim G. Pinto (January 2020) Enhanced extended‐range predictability of the 2018 late‐winter Eurasian cold spell due to the stratosphere, Quarterly Journal of the Royal Meteorological Society. DOI: 10.1002/qj.3724
- S. B. Healy, I. Polichtchouk, A. Horányi (October 2020) Monthly and zonally averaged zonal wind information in the equatorial stratosphere provided by GNSS radio occultation, Quarterly Journal of the Royal Meteorological Society. DOI: 10.1002/qj.3870
- Inna Polichtchouk, Richard K. Scott (April 2020) Spontaneous inertia‐gravity wave emission from a nonlinear critical layer in the stratosphere, Quarterly Journal of the Royal Meteorological Society. DOI: 10.1002/qj.3750
- Nils P. Wedi, Inna Polichtchouk, Peter Dueben, Valentine G. Anantharaj, Peter Bauer, Souhail Boussetta, Philip Browne, Willem Deconinck, Wayne Gaudin, Ioan Hadade, Sam Hatfield, Olivier Iffrig, Philippe Lopez, Pedro Maciel, Andreas Mueller, Sami Saarinen, Irina Sandu, Tiago Quintino, Frederic Vitart (November 2020) A Baseline for Global Weather and Climate Simulations at 1 km Resolution, Journal of Advances in Modeling Earth Systems n. 11. DOI: 10.1029/2020MS002192
- A. Inness, S. Chabrillat, J. Flemming, V. Huijnen, B. Langenrock, J. Nicolas, I. Polichtchouk, M. Razinger (December 2020) Exceptionally Low Arctic Stratospheric Ozone in Spring 2020 as Seen in the CAMS Reanalysis, Journal of Geophysical Research: Atmospheres n. 23. DOI: 10.1029/2020JD033563
- Graeme Marlton, Andrew Charlton-Perez, Giles Harrison, Inna Polichtchouk, Alain Hauchecorne, Phillipe Keckhut, Robin Wing, Thierry Leblanc, Wolfgang Steinbrecht (October 2020) Using a global network of temperature lidars to identify temperature biases in the upper stratosphere in ECMWF reanalyses. DOI: 10.5194/acp-2020-959
- Wolfgang Woiwode, Andreas Dörnbrack, Inna Polichtchouk, Sören Johansson, Ben Harvey, Michael Höpfner, Jörn Ungermann, Felix Friedl-Vallon (December 2020) Technical note: Lowermost-stratosphere moist bias in ECMWF IFS model diagnosed from airborne GLORIA observations during winter–spring 2016, Atmospheric Chemistry and Physics. DOI: 10.5194/acp-20-15379-2020
- Wolfgang Woiwode, Andreas Dörnbrack, Inna Polichtchouk, Sören Johansson, Ben Harvey, Michael Höpfner, Jörn Ungermann, Felix Friedl-Vallon (May 2020) Technical note: Lowermost-stratospheric moist bias in ECMWF IFS model diagnosed from airborne GLORIA observations during winter/spring 2016. DOI: 10.5194/acp-2020-367
- 2019
- Inna Polichtchouk, Timothy Stockdale, Peter Bechtold, Michail Diamantakis, Sylvie Malardel, irina sandu, Filip Vána, Nils Wedi (June 2019) Control on stratospheric temperature in IFS: resolution and vertical advection, ECMWF Technical Memoranda n. 847. DOI: 10.21957/cz3t12t7e
- Nicholas J. Byrne, Theodore G. Shepherd, Inna Polichtchouk (July 2019) Subseasonal‐to‐Seasonal Predictability of the Southern Hemisphere Eddy‐Driven Jet During Austral Spring and Early Summer, Journal of Geophysical Research: Atmospheres. DOI: 10.1029/2018JD030173
- Frederic Vitart, Magdalena A. Balmaseda, Laura Ferranti, Angela Benedetti, Beena Balan Sarojini, Steffen Tietsche, Junchen Yao, Martin Janousek, Gianpaolo Balsamo, Martin Leutbecher, Peter Bechtold, Inna Polichtchouk, David Richardson, Timothy Stockdale, Chris Roberts (November 2019) Extended-range prediction, ECMWF Technical Memoranda n. 854. DOI: 10.21957/pdivp3t9m
- 2018
- Inna Polichtchouk, Theodore G. Shepherd, Nicholas J. Byrne (August 2018) Impact of Parametrized Nonorographic Gravity Wave Drag on Stratosphere‐Troposphere Coupling in the Northern and Southern Hemispheres, Geophysical Research Letters n. 16, pp. 8612-8618. DOI: 10.1029/2018GL078981
- I. Polichtchouk, T. G. Shepherd, R. J. Hogan, P. Bechtold (May 2018) Sensitivity of the Brewer–Dobson Circulation and Polar Vortex Variability to Parameterized Nonorographic Gravity Wave Drag in a High-Resolution Atmospheric Model, Journal of the Atmospheric Sciences. DOI: 10.1175/jas-d-17-0304.1
- 2016
- I. Polichtchouk, J. Y-K. Cho (April 2016) Equatorial superrotation in Held and Suarez like flows with weak equator-to-pole surface temperature gradient, Quarterly Journal of the Royal Meteorological Society. DOI: 10.1002/qj.2755
- I. Polichtchouk, T. G. Shepherd (August 2016) Zonal-mean circulation response to reduced air-sea momentum roughness, Quarterly Journal of the Royal Meteorological Society. DOI: 10.1002/qj.2850
- 2015
- J. Y.-K. Cho, I. Polichtchouk, H. Th. Thrastarson (October 2015) Sensitivity and variability redux in hot-Jupiter flow simulations, Monthly Notices of the Royal Astronomical Society. DOI: 10.1093/mnras/stv1947
- 2014
- I. Polichtchouk, J.Y-K. Cho, C. Watkins, H.Th. Thrastarson, O.M. Umurhan, M. de la Torre Juárez (February 2014) Intercomparison of general circulation models for hot extrasolar planets, Icarus. DOI: 10.1016/j.icarus.2013.11.027
- 2012
- I. Polichtchouk, J. Y-K. Cho (June 2012) Baroclinic instability on hot extrasolar planets, Monthly Notices of the Royal Astronomical Society. DOI: 10.1111/j.1365-2966.2012.21312.x
- 2011
- J.-P. Beaulieu, G. Tinetti, D. M. Kipping, I. Ribas, R. J. Barber, J. Y.-K. Cho, I. Polichtchouk, J. Tennyson, S. N. Yurchenko, C. A. Griffith, V. Batista, I. Waldmann, S. Miller, S. Carey, O. Mousis, S. J. Fossey, A. Aylward (March 2011) METHANE IN THE ATMOSPHERE OF THE TRANSITING HOT NEPTUNE GJ436B?, The Astrophysical Journal. DOI: 10.1088/0004-637x/731/1/16