Technical Memoranda

747
Antje Inness; Angela Benedetti; Johannes Flemming; Mark Parrington; J. Kaiser; S. Remy
The ENSO signal in atmospheric composition fields: Emission driven versus dynamically induced changes
03/2015
10108-enso-signal-atmospheric-composition-fields-emission-driven-versus-dynamically-induced-changes.pdf
746
Robin Hogan; Alessio Bozzo
Mitigating surface temperature errors using approximate radiation updates
02/2015
11772-mitigating-surface-temperature-errors-using-approximate-radiation-updates.pdf
745
Antje Inness; A.-M. Blechschmidt; I. Bouarar; other authors
Data assimilation of satellite retrieved ozone, carbon monoxide and nitrogen dioxide with ECMWF's Composition-IFS
12/2014
7595-data-assimilation-satellite-retrieved-ozone-carbon-monoxide-and-nitrogen-dioxide-ecmwfs.pdf
744
C. Tavolato; L. Isaksen
On the use of a Huber norm for observation quality control in the ECMWF 4D-Var
11/2014
12572-use-huber-norm-observation-quality-control-ecmwf-4d-var.pdf
743
Massimo Bonavita; E. Hólm; L. Isaksen; Mike Fisher
The evolution of the ECMWF hybrid data assimilation system
12/2014
8271-evolution-ecmwf-hybrid-data-assimilation-system.pdf
742
Thomas Haiden; Peter Bauer; Jean-Raymond Bidlot; Laura Ferranti; Tim Hewson; F. Prates; David Richardson; Frédéric Vitart
Evaluation of ECMWF forecasts, including 2013-2014 upgrades
12/2014
12525-evaluation-ecmwf-forecasts-including-2013-2014-upgrades.pdf
741
Alan Geer; Fabrizio Baordo; Niels Bormann; S.J. English
All-sky assimilation of microwave humidity sounders
11/2014
9507-all-sky-assimilation-microwave-humidity-sounders.pdf
740
Souhail Boussetta; Gianpaolo Balsamo; Emanuel Dutra; Anton Beljaars; C. Albergel
Analysis of surface albedo and Leaf Area Index from satellite observations and their impact on numerical weather prediction
11/2014
12032-analysis-surface-albedo-and-leaf-area-index-satellite-observations-and-their-impact-numerical.pdf
739
Roberto Buizza
The TIGGE global, medium-range ensembles
11/2014
7529-tigge-global-medium-range-ensembles.pdf
738
Frédéric Vitart; Gianpaolo Balsamo; Roberto Buizza; Laura Ferranti; Sarah Keeley; L. Magnusson; Franco Molteni; Antje Weisheimer
Sub-seasonal predictions
10/2014
12943-sub-seasonal-predictions.pdf
737
Steffen Tietsche; Magdalena Alonso-Balmaseda; Hao Zuo; Kristian Mogensen
Arctic sea ice in the ECMWF MyOcean2 ocean reanalysis ORAP5
10/2014
12747-arctic-sea-ice-ecmwf-myocean2-ocean-reanalysis-orap5.pdf
736
Hao Zuo; Magdalena Alonso-Balmaseda; Kristian Mogensen
The ECMWF-MyOcean2 eddy-permitting ocean and sea-ice reanalysis ORAP5. Part 1: Implementation
10/2014
13224-ecmwf-myocean2-eddy-permitting-ocean-and-sea-ice-reanalysis-orap5-part-1-implementation.pdf
735
C. Albergel; J. Munoz-Sabater; Thomas Haiden; Gianpaolo Balsamo; Anton Beljaars; L. Isaksen; Patricia de Rosnay; Irina Sandu; Nils Wedi
Soil temperature at ECMWF: an assessment using ground-based observations
11/2014
8533-soil-temperature-ecmwf-assessment-using-ground-based-observations.pdf
734
K. Chen; S.J. English; Niels Bormann; J. Zhu
Assessment of FY-3A and FY-3B MWHS observations
09/2014
8663-assessment-fy-3a-and-fy-3b-mwhs-observations.pdf
733
M. Hamrud; Massimo Bonavita; L. Isaksen
EnKF and Hybrid Gain Ensemble Data Assimilation
09/2014
9766-enkf-and-hybrid-gain-ensemble-data-assimilation.pdf
732
M. Kazumori; Alan Geer; S.J. English
Effects of all-sky assimilation of GCOM-W1/AMSR2 radiances in the ECMWF System
10/2014
10425-effects-all-sky-assimilation-gcom-w1amsr2-radiances-ecmwf-system.pdf
731
L. Magnusson; David Richardson; Thomas Haiden
Verification of extreme weather events: Discrete predictands
09/2014
10909-verification-extreme-weather-events-discrete-predictands.pdf
730
Johannes Flemming; V. Huijnen; J. Arteta; Peter Bechtold; Anton Beljaars; A-M. Blechschmidt; Michail Diamantakis; Richard Engelen; A. Gaude; Antje Inness; Luke Jones; V.-H. Peuch; M.G. Schulz; O. Stein; A. Tsikerdekis
Tropospheric Chemistry in the Integrated Forecasting System of ECMWF
09/2014
9426-tropospheric-chemistry-integrated-forecasting-system-ecmwf.pdf
729
Gianpaolo Balsamo; Anna Agusti-Panareda; C. Albergel; Anton Beljaars; Souhail Boussetta; Emanuel Dutra; T. Komori; S.T.K. Lang; J. Munoz-Sabater; Florian Pappenberger; Patricia de Rosnay; Irina Sandu; Nils Wedi; Antje Weisheimer; Fredrik Wetterhall; Ervin Zsótér
Representing the Earth surfaces in the Integrated Forecasting System: Recent advances and future challenges
10/2014
9476-representing-earth-surfaces-integrated-forecasting-system-recent-advances-and-future-challenges.pdf
728
Philippe Lopez
Comparison of NCEP Stage IV precipitation composites with ECMWF model
09/2014
10793-comparison-ncep-stage-iv-precipitation-composites-ecmwf-model.pdf
727
S. Migliorini
Optimal flow-dependent selection of channels from advanced sounders in the presence of cloud
07/2014
11138-optimal-flow-dependent-selection-channels-advanced-sounders-presence-cloud.pdf
726
Carla Cardinali; N. Zagar; G. Radnóti; Roberto Buizza
Representing model error in ensemble data assimilation
06/2014
8589-representing-model-error-ensemble-data-assimilation.pdf
725
Peter Bechtold; Irina Sandu; D. Klocke; N. Semane; Maike Ahlgrimm; Anton Beljaars; Richard Forbes; Mark Rodwell
The role of shallow convection in ECMWF's Integrated Forecasting System
07/2014
8016-role-shallow-convection-ecmwfs-integrated-forecasting-system.pdf
724
J. Kaiser; N. Andela; J. Atherton; M. de Jong; A. Heil; R. Paugam; S. Remy; M.G. Schultz; G.R. van der Werf; T.T. van Leeuwen; M.J. Wooster
Recommended fire emission service enhancements
05/2014
10376-recommended-fire-emission-service-enhancements.pdf