Details for Final Report of the HIRLAM 5 Project, September 2003

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Name:Final Report of the HIRLAM 5 Project, September 2003
Description:

HIRLAM 5 Final Report

Authors

Per Unden , Heikki Jarvinen , Ernesto Rodriguez and Gerard Cats

Contents
1 Introduction and Executive Summary 6
1.1 Organisation during the Project 6
1.2 Summary of the Data assimilation and observational usage 6
1.3 Summary of the Modelling work 7
1.4 Summary of the Embedding work 9
1.5 Operational HIRLAM progress in the member institutes 10
2 Data Assimilation 11
2.1 Three-dimensional variational data assimilation (3D-VAR) 15
2.2 Four-dimensional variational data assimilation (4D-VAR) 18
2.3 Continuing maintenance of the Optimum Interpolation (0I) analysis 19
2.4 Surface analysis 20
2.5 Assimilation of remote sensing data 21
2.5.1 ERS, SeaWinds and ASCAT scatterometer data 21
2.5.2 (A)TOVS sounding data 23
2.5.3 Global Positioning System (GPS) data 25
2.5.4 Ground based radar data, profilers and SODAR
2.5.5 Ancillary satellite data 28
3 Modelling 29
3.1 Physics 29
3.1.1 Turbulence 29
3.1.2 Surface Processes 30
3.1.3 Clouds and Condensatio n 31
3.1.4 Radiation 33
3.1.5 Mountain waves, orography and Gravity Wave Drag 33
3.1.6 ECMWF Physics Package 34
3.2 Numerics 34
3.2.1 Time-integration Methods 35
3.2.2 Lateral and Upper Boundary Conditions 36
3.2.3 Non-Hydrostatic Equations 37
3.2.4 Boundary Filters for Initialisation and Launching 38
3.2.5 Digital Filters for Initialisation 39
3.2.6 Spectral Formulation 39
3.2.7 Forecast Reliability 39
4 System, Embedding and Validation 41
4.1 General System Activities 41
4.2 Physiography 42
4.3 Enhancement of Efficiency of the Reference System 42
4.4 Delayed Mode Runs and validation of Reference system 43
4.5 Overhaul of system and re-coding of code and scripts
4.6 Observation Pre-processing and Quality Control 44
4.7 Model Post-processing and Verification 45
4.8 HeXnet maintenance 45
4.9 Documentation 45

Appendices

A Organisational Hirlam-5 Meetings 46
B Workshops and other scientific Hirlam-5 Meetings 48
C Hirlam Scientific Visits 49
C.1 Extended visits (longer than 2 weeks) 49
C.2 Shorter visits 49
C.3 External presentations 50
D List of Hirlam-5 Staff 53
E Reference System and major beta releases 55
F Publications 55
F.1 HIRLAM Newsletters 55
F.2 HIRLAM Workshop Proceedings and other Reports 56
F.3 HIRLAM Technical Reports, 2000-2002 56
F.4 Publications by HIRLAM-5 Staff (and invited speakers at HIRLAM Workshops) 57
F.5 Other References

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