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2001, Conference Paper, Observing the Oceans in the 21st Century. C. Koblinsky and N. Smith Editors. Published by The Australian Bureau of Meteorology

On the impact of frequent data in ECMWF's 4D-Var scheme. Hourly surface pressure data, European profilers and profiling aircraft data

Author

Erik Andersson

Carla Cardinali

L. Isaksen

Anotonio Garcia-Mendez

2001, Conference Paper, Eighth Workshop on Meteorological Operational Systems, 12-16 November 2001

File

7743-impact-frequent-data-ecmwfs-4d-var-scheme-hourly-surface-pressure-data-european-profilers-and.pdf

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

Author

Erik Andersson

Mike Fisher

R. Munro

2000, Technical memorandum, ECMWF Technical Memoranda

File

7747-diagnosis-background-errors-radiances-and-other-observable-quantities-variational-data.pdf

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Intercomparison of the performance of operational ocean wave forecasting systems with buoy data

Ocean wave analysis and use of surface wind observations over the oceans

Assimilation of SAR data into the ECMWF global wave model

Metview - Recent evolution of ECMWF's meteorological visualisation and computing software

Assimilation of MIPAS limb radiances in the ECMWF system. Part I: Experiments with a 1-dimensional observation operator.

Assimilation of MIPAS limb radiances in the ECMWF system. Part II: Experiments with a 2-dimensional observation operator and comparison to retrieval assimilation

Aerosol monitoring and modelling.

Sub-grid scale orography parametrizations

The use of profiler data at ECMWF

The development of 12-hourly 4D-Var. With annexes supplied by M. Miller, M. Hortal and L. Isaksen.

Towards coupled data assimilation systems

Observing systems experiments in the ECMWF 4D-Var data assimilation system

Impact of horizontal resolution on seasonal integrations

Impact of wind gustiness and air density on modelling of wave generation: implementation at ECMWF

The technical support for global validation of ERS Wind and Wave Products at ECMWF (April 2004 - June 2006). Final Report for ESA contract 18212/04/I-OL

Using validation sites and field campaigns to evaluate observational and model bias

Using ERA-40 products to verify and improve the Met Office climate model

Sea level assimilation experiments in the tropical pacific

Validation of the TRMM PR rain retrieval algorithm from airborne and ground-based radar data

Making the ECMWF tools, including Metview, available in a restricted version of the PAiPix scientific live Linux

Ocean data assimilation for seasonal forecasting

Ocean Data Needs for ENSO and Seasonal Forecasting Systems

On the impact of frequent data in ECMWF's 4D-Var scheme. Hourly surface pressure data, European profilers and profiling aircraft data

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

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