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Abstract <p>The paper presents the results of evaluating the impact of the TERRA_URB urban canopy parameterization on the quality of numerical air temperature forecasts for Novosibirsk using the regional configuration of the COSMO-Ru2Sib model. Some high-resolution simulations were performed for the model configuration modifications with altered values of the impervious surface area and anthropogenic heat flux. The results were compared with observational data on near-surface air temperature and the data on land surface temperature that were derived from remote sensing data for the winter and summer periods. The findings have demonstrated that applying the urban parameterization improves the accuracy of air temperature forecasts during predawn hours. The comparison with remote sensing data has revealed a consistent overestimation of land surface temperature by the COSMO-Ru2Sib in the warm season and underestimation of it in winter.</p>

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Evaluation of the Impact of Using the TERRA_URB Parameterization on Surface Air Temperature Forecasting in the COSMO-RuSib Prediction System for Novosibirsk

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • T. F. Gazimov,
  • A. V. Gochakov,
  • A. B. Kolker,
  • I. V. Kuzhevskaya

摘要

Abstract

The paper presents the results of evaluating the impact of the TERRA_URB urban canopy parameterization on the quality of numerical air temperature forecasts for Novosibirsk using the regional configuration of the COSMO-Ru2Sib model. Some high-resolution simulations were performed for the model configuration modifications with altered values of the impervious surface area and anthropogenic heat flux. The results were compared with observational data on near-surface air temperature and the data on land surface temperature that were derived from remote sensing data for the winter and summer periods. The findings have demonstrated that applying the urban parameterization improves the accuracy of air temperature forecasts during predawn hours. The comparison with remote sensing data has revealed a consistent overestimation of land surface temperature by the COSMO-Ru2Sib in the warm season and underestimation of it in winter.