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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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.

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HIRLAM_TechnicalReport_70 HIRLAM_TechnicalReport_70

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Date added: 05/18/2017
Date modified: 05/18/2017
Filesize: 6.04 MB
Downloads: 728

HIRLAM TR70 - HARMONIE verifcation and evaluation - March 2017

Wim de Rooy and Hylke de Vries et al.

This report constitutes a summary of verification and evaluation research of the HARMONIE model. Main attention is on differences between Cy36-based HARMONIE and more recent Cy38- and Cy40-based versions but results of the HIRLAM and ECMWF model are also included. Apart from a conventional verification against synops and radiosonds, this report presents also comparisons of the models against a wide variety of observations such as: MSG retrieved radiation and cloud cover, scatterometer winds, radiosonde trajectories, radar rain data, MODE-S EHS data, and buoys. In this way, conclusions on model performance can be better founded than with standard verification. The results clearly demonstrate the overall improvement with the fully updated cy38 (which is similar to the reference cy40) against the cy36 version, most notable in the wind speed. Moreover, the updated cy38 HARMONIE version substantially outperforms the ECMWF and HIRLAM model on e.g. 10m wind speed and 2m temperature. Additional verification of precipitation using a.o. Fractions Skill Score, presented in de Vries et al. (to be submitted) is consistent with the results shown in this report.

HIRLAM Technical Report No. 06: Spectral Synthesis on Rotated and Regular Grids HIRLAM Technical Report No. 06: Spectral Synthesis on Rotated and Regular Grids

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Date added: 12/01/2014
Date modified: 12/01/2014
Filesize: 1.5 MB
Downloads: 2434

Authors: Peter Lynch and Ray McGrath

Date: December 1990

HIRLAM Technical Report No. 15: A Simple Framework for Testing the Quality of Atmospheric Limited Area Models HIRLAM Technical Report No. 15: A Simple Framework for Testing the Quality of Atmospheric Limited Area Models

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Date added: 10/24/2014
Date modified: 10/24/2014
Filesize: 10.65 MB
Downloads: 2785

By Bent H. Sass and Jens H. Christensen

August 1994