Technical Memoranda

459
Andre Walser; M. Arpagus; Martin Leutbecher; C. Appenzeller
The impact of moist singular vectors and horizontal resolution on short-range limited-area ensemble forecasts for two European winter storms.
03/2005
12982-impact-moist-singular-vectors-and-horizontal-resolution-short-range-limited-area-ensemble.pdf
458
K. Haines; J. Blower; J-P. Drecourt; C. Liu; I. Astin; X. Zhou; A. Vidard
Salinity assimilation using S(T) relationships: Part 1 - Theory.
03/2005
9742-salinity-assimilation-using-st-relationships-part-1-theory.pdf
457
Erik Andersson; Carla Cardinali; B. Truscott; T. Hovberg
High-frequency AMDAR data - a European aircraft data collection trial and impact assessment.
02/2005
7765-high-frequency-amdar-data-european-aircraft-data-collection-trial-and-impact-assessment.pdf
456
Philippe Lopez; Angela Benedetti; Peter Bauer; Marta Janiskova; M. Köhler
Experimental 2D-Var assimilation of ARM cloud and precipitation observations.
01/2005
10800-experimental-2d-var-assimilation-arm-cloud-and-precipitation-observations.pdf
455
A.M. Tompkins; Carla Cardinali; J.-J. Morcrette; Mark Rodwell
Influence of aerosol climatology on forecasts of the African Easterly Jet.
03/2005
12786-influence-aerosol-climatology-forecasts-african-easterly-jet.pdf
454
J. Haseler
Early-delivery suite.
12/2004
9793-early-delivery-suite.pdf
453
A.M. Tompkins; A. Diongue; D.J. Parker; C. Thorncroft
The African easterly jet in the ECMWF Integrated forecast system: 4DVar analysis.
12/2004
12784-african-easterly-jet-ecmwf-integrated-forecast-system-4dvar-analysis.pdf
452
A.M. Tompkins; Peter Bechtold; Anton Beljaars; Angela Benedetti; S. Cheinet; Marta Janiskova; M. Köhler; Philippe Lopez; J.-J. Morcrette
Moist physical processes in the IFS: Progress and Plans
12/2004
12789-moist-physical-processes-ifs-progress-and-plans.pdf
451
Angela Benedetti; Philippe Lopez
Verification of TMI-adjusted rainfall analysis of tropical cyclones at ECMWF using TRMM Precipitation Radar observations.
10/2004
8069-verification-tmi-adjusted-rainfall-analysis-tropical-cyclones-ecmwf-using-trmm-precipitation.pdf
450
Carla Cardinali; S. Pezzulli; Erik Andersson
Influence matrix diagnostic of a data assimilation system.
10/2004
8592-influence-matrix-diagnostic-data-assimilation-system.pdf
449
G.J. Shutts
A stochastic kinetic energy backscatter algorithm for use in ensemble prediction systems.
08/2004
12214-stochastic-kinetic-energy-backscatter-algorithm-use-ensemble-prediction-systems.pdf
448
Angela Benedetti; Philippe Lopez; Peter Bauer; E. Moreau
Experimental use of TRMM Precipitation Radar observations in 1D+4D-Var assimilation
08/2004
8072-experimental-use-trmm-precipitation-radar-observations-1d4d-var-assimilation.pdf
447
Mike Fisher
On the equivalence between Kalman smoothing and weak-constraint four-dimensional variational data assimilation.
12/2004
9415-equivalence-between-kalman-smoothing-and-weak-constraint-four-dimensional-variational-data.pdf
446
L.H.Y. Yeung; E.S.T. Lai; Q.C.C. Lam; P.K.Y. Chan; P. Cheung
Performance and application of ECMWF EPS forecasts in the prediction of heavy rain and high winds in Hong Kong.
07/2004
13180-performance-and-application-ecmwf-eps-forecasts-prediction-heavy-rain-and-high-winds-hong-kong.pdf
445
L. Isaksen; Mike Fisher; Erik Andersson
The structure and realism of sensitivity perturbations and their interpretation as 'Key Analysis Errors'.
08/2004
10126-structure-and-realism-sensitivity-perturbations-and-their-interpretation-key-analysis-errors.pdf
444
M. Drusch; E.F. Wood; H. Gao; A. Thiele
Soil moisture retrieval during the Southern Great Plains Hydrology Experiment 1999: A comparison between experimental remote sensing data and operational products.
06/2004
9141-soil-moisture-retrieval-during-southern-great-plains-hydrology-experiment-1999-comparison.pdf
443
M. Drusch; Drasko Vasiljevic; P. Viterbo
ECMWF's global snow analysis: Assessment and revision based on satellite observations.
06/2004
9139-ecmwfs-global-snow-analysis-assessment-and-revision-based-satellite-observations.pdf
442
D. Meetschen; B. Hurk; F. Ament; M. Drusch
Optimized surface radiation fields derived from METEOSAT imagery and a regional atmospheric model.
07/2004
11095-optimized-surface-radiation-fields-derived-meteosat-imagery-and-regional-atmospheric-model.pdf
441
S. Ricci; A.T. Weaver; J. Vialard; P. Rogel
Incorporating state-dependent temperature-salinity constraints in the background error covariance of variational ocean data assimilation.
06/2004
11895-incorporating-state-dependent-temperature-salinity-constraints-background-error-covariance.pdf
440
W. Bourke; Roberto Buizza; M. Naughton
Performance of the ECMWF and the BoM ensemble systems in the Southern Hemisphere
05/2004
8333-performance-ecmwf-and-bom-ensemble-systems-southern-hemisphere.pdf
439
P. Prior
Report on the twelfth Security Representatives' Meeting, 22-23 April 2004. (Restricted distribution)
12/2004
438
P. Prior
Report on the sixteenth meeting of Computing Representatives, 21-22 April 2004.
10/2004
11735-report-sixteenth-meeting-computing-representatives-21-22-april-2004.pdf
437
Erik Zagar; Mike Fisher
Balanced tropical data assimilation based on a study of equatorial waves in ECMWF short-range forecast errors.
04/2004
11364-balanced-tropical-data-assimilation-based-study-equatorial-waves-ecmwf-short-range-forecast.pdf
436
Niels Bormann; Marco Matricardi; Sean Healy
RTMIPAS: A fast radiative transfer model for the assimilation of infrared limb radiances from MIPAS.
04/2004
8309-rtmipas-fast-radiative-transfer-model-assimilation-infrared-limb-radiances-mipas.pdf