hirlam

Contents

Introduction, Tilly Driesenaar

Using J_k in AROME 3D-VAR: Some Initial Tests, Per Dahlgren

Assimilation of Radar Reflectivity Data using the Field Alignment Technique, Carlos Geijo

Winter-time Convection - a Heavy Snowfall Case in Southern Finland, Sami Niemelä

Numerical Stability and Kinetic Energy Spectra in High-Resolution HARMONIE, Enda O'Brien

ATOVS Processing and Usage in the HARMONIE Reference System, Magnus Lindskog, Mats Dahlbom, Sigurdur Thorsteinsson, Per Dahlgren, Roger Randriamampianina, Jelena Bojarova

Note on a Comparison between HIRLAM 7.2 and HIRLAM 7.4 within EUCOS Experimentation, Nils Gustafsson and Sigurdur Thorsteinsson

Configuration of HARMONIE Cycling with a Asynoptic Time Base, Xiaohua Yang

Report on Pre-release Meteorological Evaluation of HARMONIE 37h1 in HIRLAM-B, Xiaohua Yang

Status of the HIRLAM/HARMONIE reference systems, Ulf Andrae

Annex A Programme and participant list of the ASM 2012/ALADIN 22th Wk

Contents

Introduction, Tilly Driesenaar

4D-Var HARMONIE Developments, Magnus Lindskog, Ole Vignes, Nils Gustafsson, Trygve Aspelien, Roger Randriamampianina, Mariano Hortal, Ulf Andræ, Per Dahlgren, Bernard Chapnik, Olivier Rivière, Claude Fischer,Gergely Bölöni, Florian Meier, Benedikt Strajnar, Antonin Bucanek, Vanja Kovač 

Assimilation of radar data in HARMONIE Activities and plans,  Martin Ridal, Bjarne Amstrup, Mats Dahlbom, Carlos Geijo, Martin Grønsleth, Siebren de Haan, Günther Haase, Tomislav Kovacic, Magnus Lindskog, Jeanette Onvlee, Roger Randriamampianina, Eoin Whelan

Studies of HARMONIE 3D-Var with 3-hourly rapid update cycling, Magnus Lindskog and Sigurdur Thorsteinsson

HARMONIE surface data assimilation, Mariken Homleid

Correcting phase errors using optical flow and image warping, Tomas Landelius and Magnus Lindskog

Data Assimilation by Field Alignment, Testing the Theory,  Carlos Geijo

The quality of EuroTEPS vs. EPS after the latest cycle updates, Inger-Lise Frogner

Predicting Intense Precipitation Using Upscaled, High-Resolution Ensemble Forecasts, Henrik Feddersen

High-resolution ensemble prediction of a polar low development, Jørn Kristiansen, Silje Sørland, Trond Iversen, Dag Bjørge and Morten Køltzow

Testing cloud parametrizations in NWP models against satellite data, Kristian P. Nielsen

Inter-comparison of radiative fluxes in the SURFEX TEB and observations from a moving platform in the streets of Helsinki, Carl Fortelius and Achim Drebs

What is going on in HIRLAM dynamics, Mariano Hortal

Sensitivity of HARMONIE to nesting strategy and initial conditions, Jana Sánchez, Javier Calvo and Ana Morata

Computationally efficient tilted independent column calculations of surface radiation, Kristian P. Nielsen and Bent H. Sass

Last updates of the Liu-Penner parametrization in Hirlam, Karl-Ivar Ivarsson

On-line boundary layer verification of weather models, Markku Kangas

The ALADIN/CHAPEAU model as a new tool for education and inter-comparison purposes at the Eötvös Loránd University in Budapest, Balogh, M., Horányi, A., Gyöngyösi, A. Z., André, K., Mile, M, Weidinger, T., Tasnádi P.

Annual Review of Operational HIRLAM 2011 and status of the reference system,Ulf Andræ

Annex A        Programme and participant list of the ASM 2011/ALADIN 21th Wk

Contents

Introduction, Tilly Driesenaar

Papers presented at the All-Staff Meeting 2010 (13 - 16 April, Utrecht)
Application of radar wind observations for wind atlas validation, Kirsti Salonen, Sami Nimelea, Carl Fortelius
New developments in EuroTEPS, Inger-Lise Frogner and Trond Iversen
Tests with Liu-Penner ice microphysics in HIRLAM, Karl-Ivar Ivarsson
Prediction of atmospheric icing with AROME, Ulf Andræ and Esjbörn Olsson
Winter time HIRLAM experiences, Laura Rontu

Other papers
Application and Verification of High-Resolution Model Fields for Forecasts of Convective Precipitation, Emil Björck
Review of Operational HIRLAM 2010, Xiaohua Yang
Status of the reference system, Xiaohua Yang

Annex A Programme and participant list of the ASM 2010/ALADIN 20th Wk

To be scanned from hardcopies.