Evaluation of observation impact on the meteorological forecasts associated with heat wave in 2018 over East Asia using observing system experiments.

ABSTRACT: Heat waves are meteorological disasters that inflict damage on public health and societal systems over extensive areas. The frequency and intensity of heat waves are increasing in many regions worldwide. However, insufficient research has been conducted to reduce forecast errors for heat waves in terms of short-range predictions. In this study, observing system experiments were performed using the Weather Research and Forecasting model and a three-dimensional variational data assimilation (DA), and the effects of observations used for DA on forecast errors for meteorological variables (i.e., upper atmospheric geopotential height, upper temperature, upper wind, and near-surface 2-m temperature) associated with heat wave were analyzed. As the forecast time increased, the 200 and 500 hPa geop

SUBMITTER: Kim DH 

PROVIDER: S-EPMC10703856 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature