Technical Memoranda

263
C. Brankovic; T.N. Palmer
Seasonal skill and predictability of ECMWF PROVOST ensembles
11/1998
8367-seasonal-skill-and-predictability-ecmwf-provost-ensembles.pdf
262
David Richardson
Skill and relative economic value of the ECMWF Ensemble Prediction System
11/1998
11903-skill-and-relative-economic-value-ecmwf-ensemble-prediction-system.pdf
261
J.-F. Mahfouf
Influence of physical processes on the tangent-linear approximation
10/1998
10919-influence-physical-processes-tangent-linear-approximation.pdf
260
Mike Fisher
Development of a simplified Kalman filter
09/1998
9401-development-simplified-kalman-filter.pdf
259
M. Ehrendorfer; F. Bouttier
An explicit low-resolution extended Kalman filter: Implementation and preliminaryexperimentation
1998
9269-explicit-low-resolution-extended-kalman-filter-implementation-and-preliminaryexperimentation.pdf
258
H. Douville; J.-F. Mahfouf; S. Saarinen; P. Viterbo
The ECMWF surface analysis: Diagnostics and prospects
09/1998
9099-ecmwf-surface-analysis-diagnostics-and-prospects.pdf
257
H. Douville; P. Viterbo; J.-F. Mahfouf; Anton Beljaars
Sequential soil moisture analysis in the presence of internal and prescribed errors using the ECMWF single column model
1998
9100-sequential-soil-moisture-analysis-presence-internal-and-prescribed-errors-using-ecmwf-single.pdf
256
P. Viterbo; A. Betts
The forecast impact of changes to the albedo of the boreal forests in the presence of snow
08/1998
12956-forecast-impact-changes-albedo-boreal-forests-presence-snow.pdf
255
P. Viterbo; Anton Beljaars; J.-F. Mahfouf; J. Teixeira
The representation of soil moisture freezing and its impact on the stable boundary layer
08/1998
12954-representation-soil-moisture-freezing-and-its-impact-stable-boundary-layer.pdf
254
D. Gregory; J.-J. Morcrette; C. Jakob; Anton Beljaars
Introduction of revised radiation, convection, cloud and vertical diffusion schemes intoCy18r3 of the ECMWF integrated forecasting system
07/1998
9648-introduction-revised-radiation-convection-cloud-and-vertical-diffusion-schemes-intocy18r3-ecmwf.pdf
253
Adrian Simmons; A. Untch; C. Jakob; P.W. Kållberg; P. Undén
Stratospheric water vapour and tropical tropopause temperatures in ECMWF analyses and multi-year simulations
04/1998
12287-stratospheric-water-vapour-and-tropical-tropopause-temperatures-ecmwf-analyses-and-multi-year.pdf
252
J.-J. Morcrette; S.A. Clough; E.J. Mlawer; M.J. Iacono
Impact of a validated radiative transfer scheme, RRTM, on the ECMWF model climate and 10-day forecasts
03/1998
11252-impact-validated-radiative-transfer-scheme-rrtm-ecmwf-model-climate-and-10-day-forecasts.pdf
251
C. Jakob; S.A. Klein
The role of vertically varying cloud fraction in the parametrization of microphysicalproceses in the ECMWF model
03/1998
10149-role-vertically-varying-cloud-fraction-parametrization-microphysicalproceses-ecmwf-model.pdf
250
Erik Andersson; H Järvinen
Variational quality control
03/1998
7759-variational-quality-control.pdf
249
Peter Janssen
On error growth in wave models
03/1998
10191-error-growth-wave-models.pdf
248
Roberto Buizza; A. Hollingsworth
Probability precipitation prediction using the ECMWF Ensemble Prediction System
02/1998
8445-probability-precipitation-prediction-using-ecmwf-ensemble-prediction-system.pdf
246
Roberto Buizza; T.N. Palmer
Impact of ensemble size on ensemble prediction
01/1998
8461-impact-ensemble-size-ensemble-prediction.pdf
245
Roberto Buizza; T. Petroliagis; T.N. Palmer; J. Barkmeijer; M. Hamrud; A. Hollingsworth; Adrian Simmons; Nils Wedi
Impact of model resolution and ensemble size of the performance of an EnsemblePrediction System
01/1998
8465-impact-model-resolution-and-ensemble-size-performance-ensembleprediction-system.pdf
243
Erik Andersson; J. Haseler; P. Undén; P. Courtier; G.A. Kelly; Drasko Vasiljevic; C. Brankovic; Carla Cardinali; C. Gaffard; A. Hollingsworth; C. Jakob; Peter Janssen; E. Klinker; A. Lanzinger; M.J. Miller; Florence Rabier; Adrian Simmons; B. Strauss; Jean-Noël Thépaut; P. Viterbo
The ECMWF implementation of three dimensional variational assimilation. Part III: Experimental results
01/1998
7752-ecmwf-implementation-three-dimensional-variational-assimilation-part-iii-experimental-results.pdf
242
Florence Rabier; A. McNally; Erik Andersson; P. Courtier; P. Undén; J. Eyre; A. Hollingsworth; F. Bouttier
The ECMWF implementation of three dimensional variational assimilation. Part II: Structure functions
01/1998
11799-ecmwf-implementation-three-dimensional-variational-assimilation-part-ii-structure-functions.pdf
241
P. Courtier; Erik Andersson; W.A. Heckley; J. Pailleux; Drasko Vasiljevic; M. Hamrud; A. Hollingsworth; Florence Rabier; Mike Fisher
The ECMWF implementation of three dimensional variational assimilation. Part 1:Formulation
01/1998
8787-ecmwf-implementation-three-dimensional-variational-assimilation-part-1formulation.pdf
247
A. Lea
Report on the Tenth meeting of Member State Computing Representatives, 7-8 October 1997
10/1997
244
P. Undén; G.A. Kelly; D. Le Meur; L. Isaksen
Observing system experiments with the 3D-Var assimilation system
12/1997
12870-observing-system-experiments-3d-var-assimilation-system.pdf
240
Florence Rabier; J.-F. Mahfouf; Mike Fisher; H Järvinen; Adrian Simmons; Erik Andersson; F. Bouttier; P. Courtier; M. Hamrud; J. Haseler; A. Hollingsworth; L. Isaksen; E. Klinker; S. Saarinen; C. Temperton; Jean-Noël Thépaut; P. Undén; Drasko Vasiljevic
Recent experimentation on 4D-Var and first results from a Simplified Kalman Filter
10/1997
11798-recent-experimentation-4d-var-and-first-results-simplified-kalman-filter.pdf