A Simulated Radar Reflectivity Calculation Method in Numerical Weather Prediction Models
نویسندگان
چکیده
Abstract The simulated radar reflectivity used by current mesoscale numerical weather prediction models can reflect the grid precipitation but cannot subgrid generated a cumulus parameterization scheme. To solve this problem, study developed new calculation method to obtain corresponding subgrid-scale and grid-scale based on Global/Regional Assimilation Prediction System (GRAPES) model of China Meteorological Administration. Based method, two 15-day forecast experiments were carried out for different time periods (11–25 April 2019 1–15 August 2019), products obtained previous compared. results show that gives clear indication in model. Verification threat scores improved are better than those control general reliability is improved. It concluded effective significantly improves products. This has good prospects providing more information about forecasting convective activity operational models.
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ژورنال
عنوان ژورنال: Weather and Forecasting
سال: 2021
ISSN: ['0882-8156', '1520-0434']
DOI: https://doi.org/10.1175/waf-d-20-0030.1