From June 2019, Erik Andersson is seconded by ECMWF to the European Commission, Brussels, to work for the Copernicus Unit at DG-GROW. Erik has a scientific background in data assimilation, the global observing systems, the impact of observations on the quality of forecasts and the use of observations in NWP.
While on secondment to European Commission, Erik is working on developing Copernicus Services for the monitoring of CO2 emissions, focusing on anthropogenic fossil fuel emissions in the context of the Paris Agreement. The CO2 monitoring and validation service will be based on satellite and in-situ measurements.
While at ECMWF (until 31 May 2019) Erik was the Deputy Director of Forecasts, collaborating closely with the Department Director, contributing to the management of the Forecast Department (~100 staff). The department is responsible for the 24/7 timely production of ECMWF's computer-based forecasts, forecast quality, software development, liaison with forecast users, user support, data sales and software licensing. The department also manages the acquisition, processing and quality control of observations, globally, of the atmosphere and oceans. The job includes many international engagements. Erik was often involved in ECMWF cross-departmental project boards. His work also includes comprehensive reporting on plans and progress to the formal committees and Council which constitute the ECMWF governance.
- The Copernicus Programme
- The evolution of the global observing systems
- The evolution of forecasting systems to ensure continued progress and improved forecast skill
- The utilisation of ECMWF forecasts by weather services, international organisations and the private sectors
- The socio-economic impact of weather forecasts
Education
- PhD, Atmospheric Science, Dynamic Meteorology, University of Stockholm, Oct 1999. Prof. E. Källén supervisor.
- BSc in Physics (Mathematics, Physics and Meteorology), University of Stockholm, Jan 1984.
- Baccalaureate, Gymnasium, Lidköping Sweden, June 1980.
Professional Experience
- Programme Officer - EU Policies, Copernicus Expert, June 2019 to date
- Deputy Director of Forecasts, ECMWF, July 2013 to May 2019
- Head of Meteorological Division, Operations Department, ECMWF. July 2008-June 2013.
- Head of Data Assimilation Section, ECMWF. Oct 2000 - June 2008
- Principal/Senior Scientist, ECMWF, from Oct 1987
- Research Meteorologist, HIRLAM, Copenhagen, June-Aug 1987
- Meteorologist, SMHI, Norrköping, Sweden, Aug 1984 to Oct 1987.
- WMO (the World Meteorological Organisation): For Service to the WMO-CBS, in recognition of outstanding work in coordinating the global NWP requirements on observing systems
- AMS (the American Meteorological Society): For outstanding services as Member of the the Board on Environmental Information Processing Technologies.
- 2021
- (April 2021) USER REQUIREMENTS FOR A COPERNICUS POLAR OBSERVING SYSTEM, European Commission.
- 2020
- (February 2020) Towards an operational anthropogenic CO2 emissions monitoring and verification support capacity, Bulletin of the American Meteorological Society. DOI: 10.1175/bams-d-19-0017.1
- (July 2020) The Copernicus Polar Ice and Snow Topography Altimeter (CRISTAL) high-priority candidate mission, The Cryosphere. DOI: 10.5194/tc-14-2235-2020
- 2019
- (June 2019) A Global Ocean Observing System (GOOS), Delivered Through Enhanced Collaboration Across Regions, Communities, and New Technologies, Front. Mar. Sci..
- Crtistina Prates, Erik Andersson, Thomas Haiden (July 2019) WIGOS Data Quality Monitoring System at ECMWF, ECMWF Technical Memoranda n. 850. DOI: 10.21957/3kdegl7kz
- David A Lavers, Shaun Harrigan, Erik Andersson, David S Richardson, Christel Prudhomme, Florian Pappenberger (December 2019) A vision for improving global flood forecasting, Environmental Research Letters. DOI: 10.1088/1748-9326/ab52b2
- 2017
- Erik Andersson (September 2017) How to evolve global observing systems, ECMWF newsletter, issue 153, pp. 37-40. DOI: 10.21957/9fxea2
- Roberto Buizza, Erik Andersson, Richard Forbes, M. Sleigh (September 2017) The ECMWF research to operations (R20) process, ECMWF Technical Memorandum n. 806. DOI: 10.21957/m3r9bvg6x
- 2015
- (May 2015) Les 25 ans du système de prévision numérique du temps IFS/Arpège, La Météorologie.
- 2014
- (September 2014) Operational Forecasting Systems. White paper 4, TPOS2020: Tropical Pacific Observing System 2020 Workshop, La Jolla, 27-31 January 2014.
- Pailleux J., J.-F. Geleyn, Hamrud M., Courtier P., Jean-Noel THEPAUT, Florence Rabier, Erik Andersson, Burridge D., Adrian Simmons, Deborah Salmond, El Khatib R., Fischer C. (September 2014) Twenty-five years of IFS/ARPEGE, ECMWF Newsletter, issue 141, pp. 22-30. DOI: 10.21957/ftu6mfvy
- 2013
- Erik Andersson, David Richardson (September 2013) Forecast performance 2012, ECMWF Newsletter, issue 134, pp. 11-12. DOI: 10.21957/w8gh9iug
- 2012
- Erik Andersson, David Richardson (September 2012) Forecast performance 2011, ECMWF Newsletter, issue 130, pp. 15-16. DOI: 10.21957/ho5diiep
- 2011
- Erik Andersson, David Richardson (September 2011) Forecast performance 2010, ECMWF Newsletter, issue 126, pp. 10-11. DOI: 10.21957/nz8pniru
- 2010
- Erik Andersson, Masutani M. (September 2010) Collaboration on Observing System Simulation Experiments (Joint OSSE), ECMWF Newsletter, issue 123, pp. 14-16. DOI: 10.21957/62gayq76
- Erik Andersson, David Richardson (September 2010) Performance of ECMWF forecasts in 2008/09, ECMWF Newsletter, issue 122, pp. 16-17. DOI: 10.21957/q7t2v9mp
- 2009
- (September 2009) Weak-constraint 4D-Var in the stratosphere, Quart. J. Roy. Meteor. Soc..
- (September 2009) Radiosonde humidity bias correction over the West African region for the special AMMA reanalysis at ECMWF, Quart. J. Roy. Meteor. Soc.. DOI: 10.1002/qj.396
- (September 2009) Towards a Kalman Filter based soil moisture analysis system for the operational ECMWF Integrated Forecast System, Geophys. Res. Lett.. DOI: 10.1029/2009GL037716
- 2008
- (September 2008) The ADM-Aeolus wind retrieval algorithms, Tellus A.
- Erik Andersson, Jean-Noel THEPAUT (September 2008) ECMWF’s 4D-Var data assimilation system – the genesis and ten years in operations, ECMWF Newsletter, issue 115, pp. 8-12. DOI: 10.21957/wnmguimihe
- M. Drusch, K. Scipal, Patricia de Rosnay, Gianpaolo Balsamo, Erik Andersson, P. Bougeault, P. Viterbo (October 2008) Exploitation of satellite data in the surface analysis, ECMWF Technical Memorandum n. 576, pp. 42. DOI: 10.21957/n6b1wz8n
- 2007
- (September 2007) Forecast impact studies of zenith total delay data from European near real-time GPS stations in Meteo France 4DVAR, J. Geophys. Res.. DOI: 10.1029/2006JD007430
- (September 2007) Analysis and forecast impact of the main humidity observing systems, Quart. J. Roy. Meteor. Soc.. DOI: 10.1002/qj.112
- (September 2007) Preliminary evaluation of the European Centre for Medium-Range Weather Forecast (ECMWF) Nature Run over the Tropical Atlantic and African Monsoon region, Geophysical Res. Letters. DOI: 10.1029/2007gl031640
- (September 2007) Influence of the quasi-biannual oscillation on the ECMWF model short-range forecast errors in the tropical stratosphere, Quart. J. Roy. Meteor. Soc..
- (September 2007) Forecast impact studies of zenith total delay data from European near real-time GPS stations in Meteo-France 4DVar, J. Geophys. Res..
- (September 2007) Influence of the quasi-biannual oscillation on the ECMWF model short-range forecast errors in the tropical stratosphere, Quart. J. Roy. Meteor. Soc..
- D. G. H. Tan, Erik Andersson, J. de Kloe, G.-J. Marseille, A. Stoffelen, P. Poli, M.-L. Denneulin, A. Dabas, D. Huber, O. Reitebuch, P. Flamant, O. Le Rille, H. Nett (August 2007) The ADM-Aeolus wind retrieval algorithms, ECMWF Technical Memorandum n. 537, pp. 25. DOI: 10.21957/5yda84tm7
- (January 2007) Observing-system impact assessment using a data assimilation ensemble technique: application to the ADM–Aeolus wind profiling mission, Quarterly Journal of the Royal Meteorological Society. DOI: 10.1002/qj.43
- Erik Andersson (September 2007) Data assimilation in the polar regions, ECMWF Newsletter, issue 112, pp. 10-15. DOI: 10.21957/d88uiso9ik
- N. Zagar, Erik Andersson, Mike Fisher, A. Untch (August 2007) Influence of the quasi-biennial oscillation on the ECMWF model short-range forecast errors in the tropical stratosphere., ECMWF Technical Memorandum n. 534, pp. 16. DOI: 10.21957/o1hun3x1
- D. G. H. Tan, Erik Andersson, Mike Fisher, L. Isaksen (January 2007) Observing system impact assessment using a data assimilation ensemble technique: application to the ADM-Aeolus wind profiling mission, ECMWF Technical Memorandum n. 510, pp. 18. DOI: 10.21957/gru8v8rd
- 2006
- (September 2006) Comments on "The Impact of Doppler Lidar Wind Observations on a Single-Level Meteorological Analysis", J. Appl. Met.
- Erik Andersson, Elias Hólm, Peter Bauer, Anton Beljaars, Graeme Kelly, Tony McNally, Adrian Simmons, Jean-Noel THEPAUT, Adrian Tompkins (September 2006) Analysis and forecast impact of humidity observations, ECMWF Newsletter, issue 109, pp. 11-15. DOI: 10.21957/wx38tjlh7z
- Erik Andersson, E. V. Hólm, Peter Bauer, Anton Beljaars, G.A. Kelly, A. McNally, Adrian Simmons, Jean-Noel THEPAUT, A.M. Tompkins (June 2006) Analysis and forecast impact of the main humidity observing systems, ECMWF Technical Memoranda n. 493, pp. 20. DOI: 10.21957/0a2ormq1r
- Drasko Vasiljevic, Erik Andersson, L. Isaksen, Anotonio Garcia-Mendez (September 2006) Surface pressure bias correction in data assimilation, ECMWF Newsletter, issue 108, pp. 20-27. DOI: 10.21957/uv295rfmx5
- 2005
- (September 2005) Comments on \textquoterightThe Impact of Doppler Lidar Wind Observations on a single-level meteorological analysis\textquoteright, J. Appl. Met..
- (September 2005) Simulation of the yield and accuracy of wind profiles measurements from the Atmospheric Dynamics Mission (ADM-Aeolus), Quart. J. Roy. Meteor. Soc..
- (September 2005) The ERA-40 re-analysis, Quart. J. Roy. Meteor. Soc..
- (September 2005) Assimilation and modeling of the hydrological cycle in the ECMWF forecasting system, Bull. Amer. Met. Soc..
- (September 2005) Assimilation and Modelling of the Hydrological Cycle, Bull. of the Amer. Meteor. Soc..
- (September 2005) Balanced tropical data assimilation based on study of equatorial waves in ECMWF short-range forecast errors, Quart. J. Roy. Meteor. Soc..
- (September 2005) Simulation of the yield and accuracy of wind profile measurements from the Atmospheric Dynamics Mission (ADM-Aeolus)., Quart. J. Roy. Meteor. Soc..
- (September 2005) The structure and realism of sensitivity perturbations and their interpretation as \textquoterightKey Analysis Errors\textquoteright, Quart. J. Roy. Meteor. Soc..
- (September 2005) The atmospheric dynamics mission for global wind measurement, Bull. of the Amer. Meteor. Soc..
- G. Radnóti, Y. Trémolet, Erik Andersson, L. Isaksen, E. V. Hólm, Marta Janiskova (June 2005) Diagnostics of linear and incremental approximations in 4D-Var revisited for higher resolution analysis, ECMWF Technical Memoranda n. 467, pp. 18. DOI: 10.21957/utezz66fa
- Erik Andersson, Carla Cardinali, B. Truscott, T. Hovberg (February 2005) High-frequency AMDAR data - a European aircraft data collection trial and impact assessment., ECMWF Technical Memorandum n. 457, pp. 15. DOI: 10.21957/8rh5zan2h
- Erik Andersson, Mike Fisher, E. V. Hólm, L. Isaksen, G. Radnóti, Y. Trémolet (September 2005) Will the 4D-Var approach be defeated by nonlinearity?, ECMWF Technical Memorandum n. 479, pp. 26. DOI: 10.21957/92th7r03d
- 2004
- Carla Cardinali, S. Pezzulli, Erik Andersson (October 2004) Influence matrix diagnostic of a data assimilation system., ECMWF Technical Memorandum n. 450, pp. 23. DOI: 10.21957/v87lmti8e
- (September 2004) Influence matrix diagnostic of a data assimilation system, Quart. J. Roy. Meteor. Soc..
- (September 2004) Estimating atmospheric CO2from advanced infrared satellite radiances within an operational 4D-Var data assimilation system: Methodology and first results, Journal of Geophysical Research. DOI: 10.1029/2004jd004777
- D. G. H. Tan, Erik Andersson (January 2004) Simulation of the yield and accuracy of wind profile measurements from the Atmospheric Dynamics Mission (ADM-Aeolus)., ECMWF Technical Memorandum n. 431, pp. 31. DOI: 10.21957/gimfviu6n
- L. Isaksen, Mike Fisher, Erik Andersson (August 2004) The structure and realism of sensitivity perturbations and their interpretation as 'Key Analysis Errors'., ECMWF Technical Memorandum n. 445, pp. 23. DOI: 10.21957/rpuh89jd
- 2003
- (September 2003) Use and impact of automated aircraft data in a global 4DVAR Data Assimilation System, Mon. Wea. Rev.
- 2002
- Erik Andersson, Anotonio Garcia-Mendez (June 2002) Assessment of European wind profiler data, in an NWP context, ECMWF Technical Memorandum n. 372, pp. 14. DOI: 10.21957/v6dm2fas9
- E. V. Hólm, Erik Andersson, Anton Beljaars, Philippe Lopez, J.-F. Mahfouf, Adrian Simmons, Jean-Noel THEPAUT (September 2002) Assimilation and Modelling of the Hydrological Cycle: ECMWF's Status and Plans, ECMWF Technical Memoranda n. 383, pp. 55. DOI: 10.21957/kry8prwuq
- Carla Cardinali, L. Isaksen, Erik Andersson (June 2002) Use and impact of automated aircraft data in 4D-Var, ECMWF Technical Memorandum n. 371, pp. 17. DOI: 10.21957/1hc0fjne
- 2001
- Mike Fisher, Erik Andersson (September 2001) Developments in 4D-Var and Kalman Filtering, ECMWF Technical Memorandum n. 347, pp. 36. DOI: 10.21957/5ghofnp6c
- 2000
- (September 2000) Diagnosis of background errors for radiances and other observable quantities in a variational data assimilation scheme, and the explanation of a case of poor convergence, Quart. J. Roy. Meteor. Soc..
- Erik Andersson, Mike Fisher, Munro R. A. McNally (September 2000) Diagnosis of background errors for radiances and other observable quantities in a variational data assimilation scheme, and the explanation of a case of poor convergence, ECMWF Technical Memorandum n. 296. DOI: 10.21957/ttmqlnf6n
- Adrian Simmons, Erik Andersson, Mike Fisher, C. Jakob, G.A. Kelly, F. Lalaurette, A. McNally, A. Untch, P. Viterbo (September 2000) Forecasting system performance in summer 1999. Part 2 Impact of changes to the ECMWF system, ECMWF Technical Memorandum n. 322, pp. 31. DOI: 10.21957/7arjrn6c
- 1999
- (September 1999) Variational quality control, Quart. J. Roy. Meteor. Soc..
- (September 1999) A study of TOVS and ATOVS background errors in radiance space in a variational analysis scheme, Technical Proceedings 10th International TOVS Study Confeference.
- (September 1999) Varational assimilation of time sequences of surface observations with serially correlated errors, Tellus.
- 1998
- (September 1998) The ECMWF implementation of three-dimensional variational assimilation (3D-Var). Part III: Experimental results, Quart. J. Roy. Meteor. Soc..
- (September 1998) The ECMWF implementation of three dimensional variational assimilation (3D-Var). Part I: Formulation, Quart. J. Roy. Meteor. Soc..
- (September 1998) The ECMWF implementation of three-dimensional variational assimilation (3D-Var). II: Structure function, Quart. J. Roy. Meteor. Soc..
- Erik Andersson, J. Haseler, P. Undén, Courtier P., G.A. Kelly, Drasko Vasiljevic, C. Brankovic, Carla Cardinali, Gaffard C., A. Hollingsworth, C. Jakob, Peter A. E. M. Janssen, E. Klinker, A. Lanzinger, M.J. Miller, Florence Rabier, Adrian Simmons, Strauss B., Jean-Noel THEPAUT, P. Viterbo (January 1998) The ECMWF implementation of three dimensional variational assimilation. Part III: Experimental results, ECMWF Technical Memoranda n. 243, pp. 36. DOI: 10.21957/k75n9aqa
- Florence Rabier, A. McNally, Erik Andersson, Courtier P., P. Undén, J. Eyre, A. Hollingsworth, F. Bouttier (January 1998) The ECMWF implementation of three dimensional variational assimilation. Part II: Structure functions, ECMWF Technical Memorandum n. 242, pp. 24. DOI: 10.21957/spflvp223
- Courtier P., Erik Andersson, Heckley W.A., J. Pailleux, Drasko Vasiljevic, M. Hamrud, A. Hollingsworth, Florence Rabier, Mike Fisher (January 1998) The ECMWF implementation of three dimensional variational assimilation. Part 1:Formulation, ECMWF Technical Memorandum n. 241, pp. 30. DOI: 10.21957/unhecz1kq
- H Järvinen, Erik Andersson, F. Bouttier (November 1998) Variational assimilation of time sequences of surface observations with serially correlatederrors, ECMWF Technical Memorandum n. 266, pp. 28. DOI: 10.21957/wo6dh5w5k
- Erik Andersson, H Järvinen (March 1998) Variational quality control, ECMWF Technical Memorandum n. 250, pp. 31. DOI: 10.21957/lqz2wn16g
- 1997
- Florence Rabier, J.-F. Mahfouf, Mike Fisher, H Järvinen, Adrian Simmons, Erik Andersson, F. Bouttier, Courtier P., M. Hamrud, J. Haseler, A. Hollingsworth, L. Isaksen, E. Klinker, S. Saarinen, C. Temperton, Jean-Noel THEPAUT, P. Undén, Drasko Vasiljevic (October 1997) Recent experimentation on 4D-Var and first results from a Simplified Kalman Filter, ECMWF Technical Memoranda n. 240, pp. 42. DOI: 10.21957/rxpcc3rzv
- 1996
- (September 1996) Pre-operational test with a three-dimensional variational analysis scheme, Preprints 2nd WMO International Symposium on Assimilation of Observations in Meteorology and Oceanography, Tokyo; 13-17 March 1995.
- 1994
- (September 1994) Use of cloud-cleared radiances in three/four-dimensional variational data assimilation, Quart. J. Roy. Meteor. Soc..
- Carla Cardinali, Erik Andersson, P. Viterbo, Jean-Noel THEPAUT, Drasko Vasiljevic (November 1994) Use of conventional surface observations in three-dimensional variational assimilation, ECMWF Technical Memoranda n. 207, pp. 31. DOI: 10.21957/p6p470k5x
- 1993
- (September 1993) Direct use of satellite sounding radiances in Numerical Weather Prediction, High spectral resolution infrared remote sensing for Earth\textquoterights weather and climate studies; ed.: A. Chedin, M. T. Chahine and N. A. Scott.
- (September 1993) Assimilation of TOVS radiance information through one-dimensional variational analysis, Quart. J. Roy. Meteor. Soc..
- Courtier P., Erik Andersson, Heckley W.A., G.A. Kelly, J. Pailleux, Florence Rabier, Jean-Noel THEPAUT, P. Undén, Drasko Vasiljevic, Carla Cardinali, J. Eyre, M. Hamrud, J. Haseler, A. Hollingsworth, A. McNally, A. Stoffelen (September 1993) Variational assimilation at ECMWF, ECMWF Technical Memoranda n. 194, pp. 84. DOI: 10.21957/j7h4sk4ha
- 1992
- J. Eyre, G.A. Kelly, A. McNally, Erik Andersson (July 1992) Assimilation of TOVS radiance information through one-dimensional variational analysis, ECMWF Technical Memorandum n. 187, pp. 31. DOI: 10.21957/72yxf2jsk
- 1991
- (September 1991) Global data assimilation and forecast experiments using the improved initialization inversion method for satellite soundings, Mon. Wea. Rev..
- (September 1991) Quality control of operational physical retrievals of satellite sounding data, Mon. Wea. Rev..
- (September 1991) Global observing system experiments on operational statistical retrievals of satellite sounding data, Mon. Wea. Rev..
- J. Pailleux, Heckley W.A., Drasko Vasiljevic, Jean-Noel THEPAUT, Florence Rabier, Carla Cardinali, Erik Andersson (August 1991) Development of a variational assimilation system, ECMWF Technical Memoranda n. 179, pp. 51. DOI: 10.21957/59wwop6fh
- 1990
- (September 1990) Observing system experiments on NESDIS statistical retrievals of TOVS satellite data using the 1988 ECMWF data assimilation system, Mon. Wea. Rev..
- 1989
- J-F. Flobert, Erik Andersson, A. Chedin, G.A. Kelly, J. Pailleux, N.A. Scott (October 1989) Data assimilation and forecast experiment at ECMWF using the '3I' retrieval scheme for satellite soundings, ECMWF Technical Memorandum n. 156, pp. 42. DOI: 10.21957/at98j6ftq
- Erik Andersson, A. Hollingsworth, G.A. Kelly, P. Lönnberg, J. Pailleux, Z. Zhang (October 1989) Observing system experiments on NESDIS statistical retrievals of TOVS data using the 1988 ECMWF data assimilation system, ECMWF Technical Memorandum n. 157, pp. 26. DOI: 10.21957/as0nweqow
- G.A. Kelly, Erik Andersson, A. Hollingsworth, P. Lönnberg, J. Pailleux, Z. Zhang (October 1989) Quality control of NESDIS physical retrievals of TOVS satellite data, ECMWF Technical Memorandum n. 158, pp. 26. DOI: 10.21957/lslx7xnx
- 1988
- Erik Andersson, A. Hollingsworth (September 1988) Typhoon bogus observations in the ECMWF data assimilation system, ECMWF Technical Memorandum n. 148, pp. 25. DOI: 10.21957/2wlaltiso
- 1987
- (September 1987) 2.0.CO;2'>The ONSAM Experiment: Remote Sensing Techniques for Vertical Sounding of the Atmosphere, Journal of Atmospheric and Oceanic Technology. DOI: 10.1175/1520-0426(1987)004<0180:TOERST>2.0.CO;2