Technical reports

The HIRLAM Technical reports since the beginning of the HIRLAM programme are gradually being imported into the DOCman document management system.

 

Overview

TR# Subject Author(s)
HIRLAM Technical Report No. 70 (6.03 MB)icon

HARMONIE verifcation and evaluation
                March 2017 

Wim de Rooy and Hylke de Vries et al
HIRLAM Technical Report No. 69 (3.55 MB)icon A verification score for High resolution NWP:
idealized and preoperational tests
             December 2012

Bent H. Sass and Xiaohua Yang

... Report from the SRNWP Workshop on High
resolution data assimilation with emphasis
on the use of moisture-related observations
                July 2008

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Categories

HIRLAM Technical Report No. 68, July 2008

HIRLAM Technical Report No. 68, July 2008 ( 10 Files )

Report from the SRNWP Workshop on High resolution data assimilation with emphasis on the use of moisture-related observations, held 21-23 March 2007 at the Museum of Work, Norrkøping, Sweden. Edited by Nils Gustafsson.

Documents

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HIRLAM Technical Report No. 33 HIRLAM Technical Report No. 33

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Date added: 03/15/2012
Date modified: 03/15/2012
Filesize: 1.13 MB
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Variational Parameter Estimation with the Lorenz Model, Kristian S. Mogensen, Xiang-Yu Huang, June 1998

HIRLAM Technical Report No. 30 HIRLAM Technical Report No. 30

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Date added: 03/15/2012
Date modified: 03/15/2012
Filesize: 1.97 MB
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Non-separable Structure Functions for the HIRLAM 3DVAR, Loïk Berre, November 1997

HIRLAM Technical Report No. 56 HIRLAM Technical Report No. 56

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Date added: 04/07/2009
Date modified: 04/21/2009
Filesize: 2.8 MB
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Parametrization of subgrid-scale orography e ffects in HIRLAM, Laura Rontu, Kai Sattler, Robert Sigg, 2002

HIRLAM Technical Report No. 09: HIRLAM 2 Final Report HIRLAM Technical Report No. 09: HIRLAM 2 Final Report

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Date added: 10/24/2014
Date modified: 10/24/2014
Filesize: 20.14 MB
Downloads: 8097

Nils Gustafsson

March 1993

Contents

1. INTRODUCTI0N p.2
2. IMPROVEMENTS OF THE LEVEL 1 SYSTEM DURING THE HIRLAM 2 PROJECT p.6
2.1 Continued removal of software errors p.6
2.2 Improved analysis scheme p.7
2.3 A workshop to study the performance of the Level 1 physics p.8
2.4 The HIRLAM system under Unix; a unified script system 11
3. OPERATIONAL EXPERIENCES OF THE HIRLAM LEVEL 1 SYSTEM p.13
3.1 FMI p.13
3.2 DMI p.24
3.3 Subjective evaluation of operational HIRLAM forecasts at SMHI p.28
4. THE HIRLAM LEVEL 2 DATA ASSIMILATION AND FORECASTING SYSTEM p.30
4.1 The reference HIRLAM Level 2 data assimilation and forecasting system p.30
4.2 Optional HIRLAM 2 forecasting system modules p.41
5. EVALUATION OF THE HIRLAM LEVEL 2 SYSTEM p.42
5.1 Parallel tests with Eulerian and semi-Lagrangian HIRLAM models and comparison with the Norwegian LAM system p.43
5.2 Parallel forecast experiments to test the effects using a longer time-step for the physics than for the dynamics calculations p.56
5.3 Parallel data assimilation and forecast experiments to evaluate the "Sundqvist"
condensation scheme p.58
5.4 Evaluation of HIRLAM Level 2 pre-operational nms at SMHI p.65
6. HIRLAM 2 RESEARCH ACTIVITIES p.67
6.1 Model Dynamics and Numerical Techniques p.67
6.2 Physical parameterization schemes p.78
6.3 Initialization schemes p.86
6.4 Data assimilation techniques p.88
6.5 Observations and Observing system experiments p.90
6.6 Development of an experimental mesoscale system p.94
7. VARIOUS OTHER HIRLAM 2 ACTIVITIES p.109
7.1 The ECMWF 00 UTC optional project p.109
7.2 Cooperation and exchange of software p.109
7.3 Presentations at international meetings. seminars and workshops p.110
7.4 The HIRLAM Mesoscale Modelling Workshop p.110
8. CONCLUDING REMARKS p.111
APPENDIX 1: Calendar of events p.113
APPENDIX 2: List of publications during HIRLAM 2 p.116
APPENDIX 3: Presentations about HIRLAM p.120
REFERENCES p.122

 

HIRLAM Technical Report No. 38 HIRLAM Technical Report No. 38

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Date modified: 03/15/2012
Filesize: 3.36 MB
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Impact of the Additional FASTEX Radiosonde Observations on the HIRLAM Data Assimilation and Forecasting System, Bjarne Amstrup, Xiang-Yu Huang, August 1998