Impact of Environmental Conditions on Grass Phenology in the Regional Climate Model COSMO-CLM

Hartmann, E.; Schulz, Jan-Peter; Seibert, Ruben; Schmidt, Marius; Zhang, Mingyue; Luterbacher, Jürg; Tölle, Merja

doi:10.3390/atmos11121364

Cited by 3 publications

(2 citation statements)

References 65 publications

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“…This means that an increase in LAI results in a temperature decrease in the COSMO-CLM output. In winter, this relationship is not as distinct as in summer but still follows the same pattern [55]. The temperature does not react as much to plant coverage as to change in LAI during both seasons (Figure A1b,d and Figure A2b,d).…”

Section: Or Peer Review 15 Of 24mentioning

confidence: 75%

A Sensitivity Assessment of COSMO-CLM to Different Land Cover Schemes in Convection-Permitting Climate Simulations over Europe

et al. 2021

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The question of how sensitive the regional and local climates are to different land cover maps and fractions is important, as land cover affects the atmospheric circulation via its influence on heat, moisture, and momentum transfer, as well as the chemical composition of the atmosphere. In this study, we used three independent land cover data sets, GlobCover 2009, GLC2000 and ESACCI-LC, as the lower boundary of the regional climate model COSMO-CLM (Consortium for Small Scale Modeling in Climate Mode, v5.0-clm15) to perform convection-permitting regional climate simulations over the large part of Europe covering the years 1999 and 2000 at a 0.0275° horizontal resolution. We studied how the sensitivity of the impacts on regional and local climates is represented by different land cover maps and fractions, especially between warm (summer) and cold (winter) seasons. We show that the simulated regional climate is sensitive to different land cover maps and fractions. The simulated temperature and observational data are generally in good agreement, though with differences between the seasons. In comparison to winter, the summer simulations are more heterogeneous across the study region. The largest deviation is found for the alpine area (−3 to +3 °C), which might be among different reasons due to different classification systems in land cover maps and orographical aspects in the COSMO-CLM model. The leaf area index and plant cover also showed different responses based on various land cover types, especially over the area with high vegetation coverage. While relating the differences of land cover fractions and the COSMO-CLM simulation results (the leaf area index, and plant coverage) respectively, the differences in land cover fractions did not necessarily lead to corresponding bias in the simulation results. We finally provide a comparative analysis of how sensitive the simulation outputs (temperature, leaf area index, plant cover) are related to different land cover maps and fractions. The different regional representations of COSMO-CLM indicate that the soil moisture, atmospheric circulation, evaporative demand, elevation, and snow cover schemes need to be considered in the regional climate simulation with a high horizontal resolution.

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Section: Or Peer Review 15 Of 24mentioning

confidence: 75%

A Sensitivity Assessment of COSMO-CLM to Different Land Cover Schemes in Convection-Permitting Climate Simulations over Europe

et al. 2021

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“…In this respect, the application of process-based climate model evaluations taking into account synoptic weather types (Maraun et al, 2021) should be considered in future impact studies. On the other hand, regional or local climate modelling could be improved by integrating the water balance of wine-growing regions as a land use type (Tölle et al, 2014;Hartmann et al, 2020).…”

Section: Adaptation Measures With Respect To the Local Environmentmentioning

confidence: 99%

Downscaling of climate change scenarios for a high-resolution, site-specific assessment of drought stress risk for two viticultural regions with heterogeneous landscapes

et al. 2022

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Abstract. Extended periods without precipitation, observed for example in central Europe including Germany during the seasons from 2018 to 2020, can lead to water deficit and yield and quality losses for grape and wine production. Irrigation infrastructure in these regions to possibly overcome negative effects is largely non-existent. Regional climate models project changes in precipitation amounts and patterns, indicating an increase in frequency of the occurrence of comparable situations in the future. In order to assess possible impacts of climate change on the water budget of grapevines, a water balance model was developed, which accounts for the large heterogeneity of vineyards with respect to their soil water storage capacity, evapotranspiration as a function of slope and aspect, and viticultural management practices. The model was fed with data from soil maps (soil type and plant-available water capacity), a digital elevation model, the European Union (EU) vineyard-register, observed weather data, and future weather data simulated by regional climate models and downscaled by a stochastic weather generator. This allowed conducting a risk assessment of the drought stress occurrence for the wine-producing regions Rheingau and Hessische Bergstraße in Germany on the scale of individual vineyard plots. The simulations showed that the risk for drought stress varies substantially between vineyard sites but might increase for steep-slope regions in the future. Possible adaptation measures depend highly on local conditions and are needed to make targeted use of water resources, while an intense interplay of different wine-industry stakeholders, research, knowledge transfer, and local authorities will be required.

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Altitudinal patterns of species richness and flowering phenology in herbaceous community in Qilian Mountains of China

Wang

et al. 2022

Int J Biometeorol

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Impact of Environmental Conditions on Grass Phenology in the Regional Climate Model COSMO-CLM

Cited by 3 publications

References 65 publications

A Sensitivity Assessment of COSMO-CLM to Different Land Cover Schemes in Convection-Permitting Climate Simulations over Europe

A Sensitivity Assessment of COSMO-CLM to Different Land Cover Schemes in Convection-Permitting Climate Simulations over Europe

Downscaling of climate change scenarios for a high-resolution, site-specific assessment of drought stress risk for two viticultural regions with heterogeneous landscapes

Altitudinal patterns of species richness and flowering phenology in herbaceous community in Qilian Mountains of China

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