Technical Memoranda

826
D. Salisbury; Kristian Mogensen; G. Balsamo
Use of in situ observations to verify the diurnal cycle of sea surface temperature in ECMWF coupled model forecasts
11/2018
18745-use-situ-observations-verify-diurnal-cycle-sea-surface-temperature-ecmwf-coupled-model.pdf
825
X. Yepes-Arbos; M. Acosta; G. van den Oord; Glenn Carver
Computational aspects and performance evaluation of the IFS-XIOS integration
09/2018
18597-computational-aspects-and-performance-evaluation-ifs-xios-integration.pdf
824
T.G. Shepherd; I. Polichtchouk; Robin Hogan; A.J. Simmons
Report on Stratosphere Task Force
06/2018
18259-report-stratosphere-task-force.pdf
823
Hao Zuo; Magdalena Alonso Balmaseda; K. Mogensen; Steffen Tietsche
OCEAN5: The ECMWF Ocean Reanalysis System and its Real-Time analysis component
08/2018
80763-ocean5-ecmwf-ocean-reanalysis-system-and-its-real-time-analysis-component.pdf
821
C. Largeron; H.L. Cloke; A. Verhoef; A. Martinez-de-la-Torre; Anna Mueller-Quintino
Impact of the representation of the infiltration on the river flow during intense rainfall events in Jules
2018
18245-impact-representation-infiltration-river-flow-during-intense-rainfall-events-jules.pdf
820
P. Dahlgren
Evaluation and diagnostics of the CERA-20C climate reanalysis ensemble
2018
17932-evaluation-and-diagnostics-cera-20c-climate-reanalysis-ensemble.pdf
818
David Richardson; Tim Hewson
Use and verification of ECMWF products in Member and Co-operating States (2017)
2018
80424-use-and-verification-ecmwf-products-member-and-co-operating-states-2017.pdf
813
Peter Janssen
Shallow-water version of the Freak Wave Warning System
2018
18063-shallow-water-version-freak-wave-warning-system.pdf
819
Michail Diamantakis; Anna Agusti-Panareda
A positive definite tracer mass fixer for high resolution weather and atmospheric composition forecasts
2017
17914-positive-definite-tracer-mass-fixer-high-resolution-weather-and-atmospheric-composition.pdf
817
Thomas Haiden; Martin Janousek; Jean Bidlot; Laura Ferranti; F. Prates; Frédéric Vitart; Peter Bauer; David Richardson
Evaluation of ECMWF forecasts, including 2016-2017 upgrades
2017
80421-evaluation-ecmwf-forecasts-including-2016-2017-upgrades.pdf
816
Robin Hogan; Maike Ahlgrimm; Gianpaolo Balsamo; Anton Beljaars; Paul Berrisford; Alessio Bozzo; Francesca Di Giuseppe; R.M. Forbes; Thomas Haiden; Simon Lang; Michael Mayer; I. Polichtchouk; Irina Sandu; Frédéric Vitart; Nils Wedi
Radiation in numerical weather prediction
2017
17771-radiation-numerical-weather-prediction.pdf
815
Alan Geer; Maike Ahlgrimm; Peter Bechtold; Massimo Bonavita; Niels Bormann; Stephen English; Mark Fielding; Richard Forbes; Robin Hogan; Elias Hólm; Marta Janiskova; Katrin Lonitz; Philippe Lopez; Marco Matricardi; Irina Sandu; P. Weston
Assimilating observations sensitive to cloud and precipitation
2017
17718-assimilating-observations-sensitive-cloud-and-precipitation.pdf
814
Sebastien Massart; Anna Agusti-Panareda; Johannes Flemming
Evidence of a stratospheric methane bias in the IFS against MIPAS data
2017
17698-evidence-stratospheric-methane-bias-ifs-against-mipas-data.pdf
812
Marco Matricardi; López Puertas; B. Funke
Modeling of nonlocal thermodynamic equilibrium effects in the classical and principal component based version of the RTTOV fast radiative transfer model
2017
17672-modeling-nonlocal-thermodynamic-equilibrium-effects-classical-and-principal-component-based.pdf
811
D.L. Bergman; Linus Magnusson; J. Nilsson; Frédéric Vitart
Forecasting tropical cyclone landfall using ECMWF's seasonal forecasts from System 4
2017
80305-forecasting-tropical-cyclone-landfall-using-ecmwfs-seasonal-forecasts-system-4.pdf
810
Massimo Bonavita; Mohamed Dahoui; Philippe Lopez; F. Prates; Elias Hólm; Giovanna De Chiara; Alan Geer; L. Isaksen; B. Ingleby
On the initialization of Tropical Cyclones
2017
17677-initialization-tropical-cyclones.pdf
809
I. Polichtchouk; Robin Hogan; T.G. Shepherd; Peter Bechtold; Tim Stockdale; S. Malardel; Sarah-Jane Lock; Linus Magnusson
What influences the middle atmosphere circulation in the IFS?
2017
80301-what-influences-middle-atmosphere-circulation-ifs.pdf
808
A.T. Weaver; S. Gurol; J. Tshimanga; Marcin Chrust; A. Piacentini
"Time" -parallel diffusion-based correlation operators
2017
17578-time-parallel-diffusion-based-correlation-operators.pdf
807
B. Ingleby
An assessment of different radiosonde types 2015/2016
2017
17551-assessment-different-radiosonde-types-20152016.pdf
806
Roberto Buizza; Erik Andersson; Richard Forbes; M. Sleigh
The ECMWF research to operations (R20) process
2017
17549-ecmwf-research-operations-r20-process.pdf
805
H. Xiao; Michail Diamantakis; S. Saarinen
An OpenACC GPU adaptation of the IFS cloud microphysics scheme
2017
17320-openacc-gpu-adaptation-ifs-cloud-microphysics-scheme.pdf
804
Niels Bormann; Cristina Lupu; Alan Geer; Heather Lawrence; P. Weston; Stephen English
Assessment of the forecast impact of suface-sensitive microwave radiances over land and sea-ice
2017
17674-assessment-forecast-impact-suface-sensitive-microwave-radiances-over-land-and-sea-ice.pdf
803
Steffen Tietsche; Magdalena Alonso Balmaseda; Hao Zuo; Patricia de Rosnay
Comparing Arctic winter sea-ice thickness from SMOS and ORAS5
2017
80068-comparing-arctic-winter-sea-ice-thickness-smos-and-oras5.pdf
802
P. Chambon; Alan Geer
All-sky assimilation of Megha-Tropiques/SAPHIR radiances in the ECMWF numerical weather prediction system
2017
17253-all-sky-assimilation-megha-tropiquessaphir-radiances-ecmwf-numerical-weather-prediction.pdf