Sensitivity analysis of different parameterization schemes using RegCM4.3 for the Carpathian region

  • Ildikó Pieczka
  • Rita Pongrácz
  • Karolina Szabóné André
  • Fanni Dóra Kelemen
  • Judit Bartholy
Original Paper

DOI: 10.1007/s00704-016-1941-4

Cite this article as:
Pieczka, I., Pongrácz, R., Szabóné André, K. et al. Theor Appl Climatol (2016). doi:10.1007/s00704-016-1941-4
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Abstract

In order to quantify the impact of the use of different parameterization schemes on regional climate model outputs, hindcast experiments have been completed applying the Regional Climate Model version 4.3 (RegCM4.3) for the Carpathian region and its surroundings at 10-km horizontal resolution with three different cumulus convection schemes. Besides, the sensitivity of outputs for subgrid-scale processes is also studied by activating the subgrid Biosphere-Atmosphere Transfer Scheme (BATS) model within other RegCM experiments. Among the analyzed factors, RegCM is most sensitive to the applied convection scheme. The impact of closure assumption related to the used convective parameterization is secondary, while the use of subgridding has less influence on the outputs. RegCM4.3 results show improved performance over our previous model simulations but still have larger amplitude for annual precipitation cycle than the measurement-based reference data. Our validation results for temperature and precipitation suggest that for the selected region, the overall best performance is achieved when using the mixed Grell-Emanuel scheme together with Fritsch and Chappell closure.

Copyright information

© Springer-Verlag Wien 2016

Authors and Affiliations

  • Ildikó Pieczka
    • 1
  • Rita Pongrácz
    • 1
  • Karolina Szabóné André
    • 1
  • Fanni Dóra Kelemen
    • 1
    • 2
  • Judit Bartholy
    • 1
  1. 1.Department of MeteorologyEötvös Loránd UniversityBudapestHungary
  2. 2.Institute for Geophysics and MeteorologyUniversity of CologneCologneGermany

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