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HIRLAM Newsletter No. 36 October 2000 HIRLAM Newsletter No. 36 October 2000

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Contents

Introduction p.1
HIRLAM Management Group Visit to KNMI, September 2000 p.2
Results of the pre-operational HIRLAM 3D-VAR runs at DMI, Kristian S. Mogensen, Jess U. Jergensen, Bjarne Amstrup, Xiaohua Yang and Xiang-Yu Huang p.6
First impact study using AMSU-A radiances in HIRLAM 3D-Var, Nils Gustafsson,
Tomas Landelius, Magnus Lindskog, Harald Schyberg, Frank Tveter, Ole Vignes, Sigurdur Thorsteinsson p.16
Updates for the list of suspicious sounding stations, Kalle Eerola p.20
A robust mixing length formulation for a TKE-l turbulence scheme, Geert lenderink and Wim de Rooy p.25
Anomalous evaporation in arid regions, Carl Fortelius p.30
A land surface treatment at the Rossby Centre intended for RCA2, Bjorn Bringfelt p.32
Modification of Cloud Cover Initialization in the STRACO Scheme to Reduce Moisture Spin-up, Xiaohua Yang and Bent Hansen Sass p.42
Modification of the HIRLAM radiation scheme for use at the Rossby Centre, Petri Raisanen, Markku Rummukainen and Jouni Raisanen p.48
Preliminary Tests on Coupling Physics to Dynamics, Isabel Martinez p.55
Well-posed boundaries; progress report, Aidan McDonald p.63
Problems in the operational HIRLAM at FMI in spring and summer 2000,
Simo Jarvenoja p.68
Recent developments in postprocessing, Laura Rontu and Carl Fortelius p.80
HIRLAM under (mini-)SMS, Gerard Cats p.89
Reference system status, Gerard Cats and Per Unden p.95

 

HIRLAM Newsletter No. 35 April 2000 HIRLAM Newsletter No. 35 April 2000

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Contents

Introduction p.1
MGM1 Report p.3
HIRLAM Management Group Visit to INM p.10
All Staff Meeting SMHI, Norrkoping p.14
List of participants p.22
MGM2 Report p.26
Operational HIRLAM at DMI 1999-2000, Bent Hansen Sass p.30
The new operational HIRLAM at FMI, Kalle Eerola p.36
Report on Operational Implementations at MF, Jean-Francois Geleyn p.44
The Irish National Report, Ray McGrath p.47
HIRLAM at KNMI, Toon Moene p.49
HIRLAM at DNMI, Dag Bjorge p.54
The new operational HIRLAM at INM, Jose Antonio Garcia-Moya p.59
SMHI operational HIRLAM system, Lars Meuller 67

* * * * *

An estimate of the seasonal dependence of background error statistics in the HIRLAM 3D-VAR, Magnus Lindskog p.71
On the multivariate formulation of the HIRLAM 3D-VAR, Loik Berre p.87
Well posed boundary conditions for HIRLAM, Aidan McDonald p.95
Non-hydrostatic adiabatic kernel for HIRLAM, Rein Room, Aarne Mannik p.103
Boundary Filters using Half-sine Functions, Peter Lynch p.110
A precision error, Nils Gustafsson, Ulf Andree and Aidan McDonald p.119

Experiences with HIRLAM including the CBR scheme, Wim de Rooy p.121
A lower boundary condition for the mixing length in the CBR turbulence scheme, Niels Woetman-Nielsen and Bent Hansen Sass p.128
Application of an extended simularity theory for the stably stratified atmospheric surface layer to HIRLAM, Veniamin Perov and S. Zilitinkevich p.137
Some developments of HIRLAM land-surface treatment at the Rossby Centre, Bjorn Bringfelt p.143
Missing snow cover in the HIRLAM system in winter - a catastrophe or not? Simo Jarvenoja p.149
New Estonian and Eastern Baltic Region Land Use Database for HIRLAM, Marko Kaasik and Jiiri Roosaare p.157
The third COMPARE exercise. Sensitivity experiments using the HIRLAM model, Javier Calvo p.163
Testing the revised HIRLAM radiation scheme, Simo Jarvenoja and Laura Rontu p.171

* * * * *

Behaviour of the HIRLAM model for the Xmas storm over France, Jose Antonio
Garcia-Moya and Beatriz Navascues p.180
Comparison between different NWP and a research model on the November 99 flash flood in Southern France, Eric Bazile and Pierre Benard p.188
Status ofthe HIRLAM delayed mode data assimilation for BALTEX BRIDGE, Carl Fortelius p.193
Some views of F90 and HIRLAM, Kalle Eerola p.199
HIRLAM at the NUMLAB course at the University of Helsinki, Laura Rontu and Kimmo Rousteenoja p.208
Experience with HIRLAM on GNU/Linux PC cluster, Aarne Mannik p.211
HIRLAM Verification scores 1st Quarter 2000, Per Unden p.214
HIRLAM Release Notes p.223

 

HIRLAM Newsletter No. 34 November 1999 HIRLAM Newsletter No. 34 November 1999

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Contents

Introduction p.1
Calendar p.2
Report of Management Group Visit to DMI, 26th August, 1999 p.3
Workshop on Satellite Observation Processing, Noordwijk p.5
Planning Meeting on HIRLAM Remote Sensing, Noordwijk p.7
Proposal on Boundary Conditions for Limited Area Modelling p.9
Verification Development: Current Status p.12

* * * * *

Analysis Modifications of Box Sizes, Moving Platform Check and Observation Errors, Per Unden p.15
Towards a New Operational HIRLAM System at FMI Results from Pre-operational Tests, Simo Jarvenoja p.33
Implicit Treatment of Turbulent Kinetic Energy Dissipation in the CBR turbulence scheme, Bent Hansen Sass p.43
The Land Surface Treatment used for the Second Regional Climate Simulation (RCA1) at the Rossby Centre, Bjorn Bringfelt p.52
Impact of the Lateral Boundaries on the Digital Filter Initialization scheme in HIRLAM, Ray McGrath and Peter Lynch p.57
HIRLAM on Linux, Toon Moene p.61

* * * * *

Unified Model Experience with Higher Resolution, Clive Wilson p.64

* * * * *

Annual Trends in Forecast Skill at Met Eireann. p.76
HIRLAM Release Notes. p.80
Note on the Cover Illustration. p.82
THANKS. p.83

 

HIRLAM Newsletter No. 33 May 1999 HIRLAM Newsletter No. 33 May 1999

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Contents

Introduction p.1
All-Staff Meeting, KNMI, De Bilt, 15-17 March, 1999 p.3
Report of Management Group Visit to Met Eireann, 9 February, 1999 p.9
Notes from a Meeting on Variational Data Assimilation, 14 April, 1999 p.12
Report of Verification Meeting, KNMI, De Bilt, 19-20 May, 1999 p.15

* * * * *

Operational Reports

DMI: Operational HIRLAM at DMI p.18
FMI: The Operational HIRLAM System at FMI p.24
IMS: HIRLAM at Met Eireann p.32
KNMI : HIRLAM at KNMI p.37
DNMI: Operational HIRLAM at DNMI p.43
INM: HIRLAM Operational System at INM p.45
SMHI: Operational HIRLAM System at SMHI p.53
Meteo-France: Operational Changes at Meteo-France p.58

 * * * * *

Parallel HIRLAM Forecast Model: an Overview, Kalle Eerola p.60
Changes to the Semi-Lagrangian Scheme, Aidan McDonald p.69
Comparison of the HIRLAM Eulerian and Semi-Lagrangian Schemes in a Climate Mode Integration. Ulf Andree p.72
Stretched Grids: Large Area Forecasts and Parallel Approaches, Enda Kelly and Jim Hamilton p.78
Sensitivity of Precipitation Forecasts to Horizontal Resolution using the STRACO Scheme, Niels Woetman-Nielsen p.81
The Rasch-Kristjansson Scheme in HIRLAM: Status Report, Viel 0degaard p.89
The Soil Water Freezing in ISBA, Eric Bazile p.92
New Physiographic Data and Climate Generation at DMI, Kai Sattler p.96
HIRLAM Near-surface Output: Error Sources and Possible Improvements in T2m and VI0m Forecasts, Wim de Rooy p.101

* * * * *

Differences in the HIRLAM and ECMWF Forecast Quality A study of Contributing Factors. Simo Jarvenjoja p.110
Comparative Verification of HIRLAM at Met Eireann, Peter Lynch and Jim Hamilton p.121
Verification Results for HIRLAM 4.3, Ray McGrath p.125
Sate-of-the-art of Short Range Forecasting. HIRLAM Activities, ECAM99 Abstract. Peter Lynch p.128
YOK Think You Have Problems! P. Licentious Max p.131
HIRLAM Release Notes p.132

HIRLAM Newsletter No. 32 November 1998 HIRLAM Newsletter No. 32 November 1998

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Contents

Introduction p.1
Calendar of Events p.2
Management Group Visit tot SMHI, 24-25 August, 1998 p.3
Training Workshop, Riga, Latvia, 19-29 October p.8
The HIRLAM Workshop in Madrid, November, 1998 p.12
Regional Climate Modelling at the Rossby Centre with HIRLAM, Markku Rummukainen et al. p.14
The First Rossby Centre HIRLAM-based Climate Simulatinos, Jouni Raisanen and Markku Rummukainen
Cirrus Parameterisation in HIRLAM - Tropical Results, Dance Zurovac-Jevtic p.23
Parameterisation of Stratocumulus using a Prognostic Cloud SCheme, Robert Sigg p.30
Fluxes over Sea using Different Surface Parameterisations, Anna Rutgersson p.32
How to get your Code into HIRLAM, Peter Lynch p.39
Inclusion of Free Convection and a Smooth Sea Surface, Niels Woetman Nielsen, p.44
A Graphical User Interface for HIRLAM, Harrie Kostwinder p.52
Strategy for Y2K Praparations, Gerard Cats p.56
Rossby in Time magazine p.64