Projected changes in mean annual cycle of temperature and precipitation over the Czech Republic: Comparison of CMIP5 and CMIP6

Holtanová, Eva; Belda, Michal; Halenka, Tomáš

doi:10.3389/feart.2022.1018661

Cited by 7 publications

(4 citation statements)

References 56 publications

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“…The results show that significant changes in European summers have already occurred and are expected to intensify in the future, leading to widespread dry conditions that are more extreme in the south. If only the effect of precipitation is taken into account, the contrast between the wetter conditions in the north and the drier conditions in southern Europe is apparent [54][55][56][57].…”

Section: Resultsmentioning

confidence: 99%

The Shadow Values of Soil Hydrological Properties in the Production Potential of Climatic Regionalization of the Czech Republic

et al. 2022

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The Czech Republic uses a dual system of agricultural land prices, namely the formal/official price—for tax purposes—and the market price in the case of a standard sale or purchase of farmland. This paper focuses on the construction of an econometric model to quantify the influence of soil hydrological characteristics on the production potential in a given climatic region. It also focuses on the use of this model for the determination of the official price of agricultural land, which is expressed on the basis of the code of the evaluated soil-ecological unit (ESEU) and based on defined soil characteristics. The pricing itself is based on the production potential of the land, which in practice is very important for spatial planning, as it determines the classes of agricultural land protection with regard to the possibility of setting aside agricultural land for non-productive purposes or for drawing subsidies for less favourable areas. In this context, the non-productive functions of agricultural land are also frequently discussed, especially its retention, which plays a very important role in the currently changing climatic conditions. There are a number of studies on soil retention, and numerous approaches to measuring it, but none of them address its impact on production potential and thus on the price of land. For this reason, this paper focuses on defining the influence of the retention of the main soil units (defined for the conditions of the Czech Republic) on production potential. For this definition, SUR models are used, where the endogenous variable is expressed as production potential and the exogenous variables include the basic soil characteristics such as grain size, porosity, hydrological component of the soil, and retention. The obtained outputs show both the high explanatory power of the model and the adequate parametric significance of most variables, which provides sufficient support for the use of the results in practice. In addition, the estimated models across all climatic regions are consistent with substantively logical assumptions about the link between production potential and soil hydrological properties, which secondarily demonstrates their applicability in practice, especially for state administration, but also for local government in the sense of municipalities, cities, and other organizational units.

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Section: Resultsmentioning

confidence: 99%

The Shadow Values of Soil Hydrological Properties in the Production Potential of Climatic Regionalization of the Czech Republic

et al. 2022

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“…Thus, daylength was the only metric with a positive effect connected with solar irradiance. Since the effect of RDR and SDSI on the growth of canopy trees was negative, it cannot be said that this was a positive effect of solar irradiance, but rather a ‘side effect’ of: (1) generally favorable temperature and precipitation patterns at the beginning of the growing season compared with summer and autumn conditions (Holtanová et al ., 2022); and (2) a possibly longer period of time when favorable conditions (intermediate solar radiation) were present.…”

Section: Discussionmentioning

confidence: 99%

The effects of solar radiation on daily and seasonal stem increment of canopy trees in European temperate old‐growth forests

Kašpar,

Krůček,

Král

2024

New Phytologist

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Summary It is well established that solar irradiance greatly influences tree metabolism and growth through photosynthesis, but its effects acting through individual climate metrics have not yet been well quantified. Understanding these effects is crucial for assessing the impacts of climate change on forest ecosystems. To describe the effects of solar irradiance on tree growth, we installed 110 automatic dendrometers in two old‐growth mountain forest reserves in Central Europe, performed detailed terrestrial and aerial laser scanning to obtain precise tree profiles, and used these to simulate the sum of solar irradiance received by each tree on a daily basis. Generalized linear mixed‐effect models were applied to simulate the probability of growth and the growth intensity over seven growing seasons. Our results demonstrated various contrasting effects of solar irradiance on the growth of canopy trees. On the one hand, the highest daily growth rates corresponded with the highest solar irradiance potentials (i.e. the longest photoperiod). Intense solar irradiance significantly decreased tree growth, through an increase in the vapor pressure deficit. These effects were consistent for all species but had different magnitude. Tree growth is the most effective on long rainy/cloudy days with low solar irradiance.

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“…This area covers the Czech Republic and has been previously used for GCM and RCM evaluation over this country (e.g. Holtanová et al 2022Holtanová et al , 2012. The GCM subset for the inner domain includes 14 GCMs less than the sample available for the upper air variables (for the lists of the models see Table 1).…”

Section: Cmip6 Ensemblementioning

confidence: 99%

On the relation of CMIP6 GCMs errors at RCM driving boundary condition zones and inner domain for Central Europe region

Holtanová,

Belda,

Crespo

et al. 2023

Preprint

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Global climate models (GCMs) are important tools for studying the climate system and climate change projections. Due to their coarse spatial resolution, downscaling is necessary on regional scale. Regional climate models (RCMs) represent a common solution for this issue. Nevertheless, outputs of RCMs are influenced by the boundary conditions provided by GCMs. This study evaluates CMIP6 GCMs regarding the variables relevant as RCM boundary conditions. Special focus is on the simulation of CNRM-ESM2-1, which is being used as a driving model for convection-permitting Aladin-Climate/CZ RCM, used as one source feeding new Czech climate change scenarios. The analysis is conducted over the boundaries and inside the RCM integration domain. Firstly, an evaluation of CFSR and ERA5 reanalyses against radiosondes is performed in order to choose an appropriate reference dataset for upper air variables. Revealed high correlation between both reanalysis and radiosondes slightly decreases at the most upper tropospheric levels. ERA5 is then chosen as the reference for the boundary analysis. Over the inner domain, simulated mean annual cycle of impact-relevant variables is validated against E-OBS. The CNRM-ESM2-1 performs well in terms of near-surface variables over the Czech Republic, but it exhibits larger errors along the boundaries, especially for air temperature and specific humidity. Weak statistical relationship between the GCM performance over the boundaries in the upper levels and over the inner domain suggests that the nested RCM simulation does not necessarily have to be influenced by the biases in the driving data.

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Projected changes in mean annual cycle of temperature and precipitation over the Czech Republic: Comparison of CMIP5 and CMIP6

Cited by 7 publications

References 56 publications

The Shadow Values of Soil Hydrological Properties in the Production Potential of Climatic Regionalization of the Czech Republic

The Shadow Values of Soil Hydrological Properties in the Production Potential of Climatic Regionalization of the Czech Republic

The effects of solar radiation on daily and seasonal stem increment of canopy trees in European temperate old‐growth forests

On the relation of CMIP6 GCMs errors at RCM driving boundary condition zones and inner domain for Central Europe region

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