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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F14%3A10286022%21RIV15-MZP-11320___
rdf:type
skos:Concept n18:Vysledek
rdfs:seeAlso
http://dx.doi.org/10.1007/s11200-013-1107-0
dcterms:description
Nowadays Regional Climate Models (RCMs) are increasingly used for downscaling of information from coarse resolution of global climate models (GCMs) and they represent a more and more popular tool for assessment of future climate changes and their impacts at regional scales. In spite of continual progress of RCMs, their outputs still suffer from many uncertainties and biases. Therefore, it is necessary to assess their ability to simulate observed climate characteristics and uncertainties in their outputs before they are applied in subsequent studies. In the present study, the assessment of RCM performance in simulating climate in the reference period of 1961-1990 over the area of Czech Republic is presented. Furthermore, we focused on the intercomparison of the models' results, mainly on the comparison of the Czech model ALADIN-Climate/CZ with outputs of other RCMs. Simulation of ALADIN-Climate/CZ in 25-km horizontal resolution, and thirteen RCM simulations from the ENSEMBLES project were assessed. Attention was paid especially to comparison of simulated and observed spatial and temporal variability of several climatic variables. The monthly and seasonal values of surface air temperature, precipitation totals and relative humidity were examined for evaluation of temporal variability and 30-year seasonal and monthly values with respect to spatial variability. Climate model performance was evaluated in several ways, namely by boxplots, maps of variability characteristics, skill scores based on mean square error and Taylor diagrams. Model errors detected by model evaluation depend on many factors (e.g. considered variables and their characteristics, area of analysis, time scale of interest and the method of assessment). On the basis of incorporated performance criteria model ALADIN-Climate/CZ belonged to a better group of RCMs in most cases. However, it was definitely the worst in simulating spring monthly means of air temperature and relative humidity in all seasons. Nowadays Regional Climate Models (RCMs) are increasingly used for downscaling of information from coarse resolution of global climate models (GCMs) and they represent a more and more popular tool for assessment of future climate changes and their impacts at regional scales. In spite of continual progress of RCMs, their outputs still suffer from many uncertainties and biases. Therefore, it is necessary to assess their ability to simulate observed climate characteristics and uncertainties in their outputs before they are applied in subsequent studies. In the present study, the assessment of RCM performance in simulating climate in the reference period of 1961-1990 over the area of Czech Republic is presented. Furthermore, we focused on the intercomparison of the models' results, mainly on the comparison of the Czech model ALADIN-Climate/CZ with outputs of other RCMs. Simulation of ALADIN-Climate/CZ in 25-km horizontal resolution, and thirteen RCM simulations from the ENSEMBLES project were assessed. Attention was paid especially to comparison of simulated and observed spatial and temporal variability of several climatic variables. The monthly and seasonal values of surface air temperature, precipitation totals and relative humidity were examined for evaluation of temporal variability and 30-year seasonal and monthly values with respect to spatial variability. Climate model performance was evaluated in several ways, namely by boxplots, maps of variability characteristics, skill scores based on mean square error and Taylor diagrams. Model errors detected by model evaluation depend on many factors (e.g. considered variables and their characteristics, area of analysis, time scale of interest and the method of assessment). On the basis of incorporated performance criteria model ALADIN-Climate/CZ belonged to a better group of RCMs in most cases. However, it was definitely the worst in simulating spring monthly means of air temperature and relative humidity in all seasons.
dcterms:title
Performance of ALADIN-Climate/CZ over the area of the Czech Republic in comparison with ENSEMBLES regional climate models Performance of ALADIN-Climate/CZ over the area of the Czech Republic in comparison with ENSEMBLES regional climate models
skos:prefLabel
Performance of ALADIN-Climate/CZ over the area of the Czech Republic in comparison with ENSEMBLES regional climate models Performance of ALADIN-Climate/CZ over the area of the Czech Republic in comparison with ENSEMBLES regional climate models
skos:notation
RIV/00216208:11320/14:10286022!RIV15-MZP-11320___
n3:aktivita
n16:S n16:P n16:I
n3:aktivity
I, P(GAP209/11/2405), P(SP/1A6/108/07), S
n3:cisloPeriodika
1
n3:dodaniDat
n11:2015
n3:domaciTvurceVysledku
n7:4582411 n7:4982231 n7:8018251
n3:druhVysledku
n13:J
n3:duvernostUdaju
n20:S
n3:entitaPredkladatele
n19:predkladatel
n3:idSjednocenehoVysledku
36155
n3:idVysledku
RIV/00216208:11320/14:10286022
n3:jazykVysledku
n9:eng
n3:klicovaSlova
skill score; Taylor diagram; climate model performance; regional climate model
n3:klicoveSlovo
n12:regional%20climate%20model n12:Taylor%20diagram n12:skill%20score n12:climate%20model%20performance
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[12FADF4085E2]
n3:nazevZdroje
Studia Geophysica et Geodaetica
n3:obor
n6:DG
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
4
n3:projekt
n4:SP%2F1A6%2F108%2F07 n4:GAP209%2F11%2F2405
n3:rokUplatneniVysledku
n11:2014
n3:svazekPeriodika
58
n3:tvurceVysledku
Holtanová, Eva Kalvová, Jaroslava Crhová, Lenka Farda, Ales
n3:wos
000330977400009
s:issn
0039-3169
s:numberOfPages
22
n17:doi
10.1007/s11200-013-1107-0
n15:organizacniJednotka
11320