Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.11765/11784
HCLIM38: a flexible regional climate model applicable for different climate zones from coarse to convection-permitting scales
Title: HCLIM38: a flexible regional climate model applicable for different climate zones from coarse to convection-permitting scales
Authors: Belušić, DanijelVries, Hylke deDobler, AndreasLandgren, OskarLind, PetterLindstedt, DavidPedersen, Rasmus A.Sánchez Perrino, Juan CarlosAutor AEMETToivonen, Erikavan Ulft, BertWang, FuxingAndrae, UlfBatrak, YuriiKjellström, ErikLenderink, GeertNikulin, GrigoryPietikäinen, Joni-PekkaRodríguez Camino, ErnestoAutor AEMETSamuelsson, PatrickMeijgaard, Erik vanWu, Minchao
Keywords: Climate zones; Regional climate models; Numerical weather prediction
Issue Date: 2020
Publisher: European Geosciences Union
Citation: Geoscientific Model Development. 2020, 13(3), p. 1311–1333
Publisher version: https://dx.doi.org/10.5194/gmd-13-1311-2020
Abstract: This paper presents a new version of HCLIM, a regional climate modelling system based on the ALADIN–HIRLAM numerical weather prediction (NWP) system. HCLIM uses atmospheric physics packages from three NWP model configurations, HARMONIE–AROME, ALARO and ALADIN, which are designed for use at different horizontal resolutions. The main focus of HCLIM is convection-permitting climate modelling, i.e. developing the climate version of HARMONIE–AROME. In HCLIM, the ALADIN and ALARO configurations are used for coarser resolutions at which convection needs to be parameterized. Here we describe the structure and development of the current recommended HCLIM version, cycle 38. We also present some aspects of the model performance. HCLIM38 is a new system for regional climate modelling, and it is being used in a number of national and international projects over different domains and climates ranging from equatorial to polar regions. Our initial evaluation indicates that HCLIM38 is applicable in different conditions and provides satisfactory results without additional region-specific tuning. HCLIM is developed by a consortium of national meteorological institutes in close collaboration with the ALADIN–HIRLAM NWP model development. While the current HCLIM cycle has considerable differences in model setup compared to the NWP version (primarily in the description of the surface), it is planned for the next cycle release that the two versions will use a very similar setup. This will ensure a feasible and timely climate model development as well as updates in the future and provide an evaluation of long-term model biases to both NWP and climate model developers.
Sponsorship : This research has been supported by Horizon 2020 (EUCP (grant no. 776613)) and the Maj and Tor Nessling foundation.
URI: http://hdl.handle.net/20.500.11765/11784
ISSN: 1991-959X
1991-9603
Appears in Collections:Artículos científicos 2019-2020


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