Comparing Background Error Covariance in WRF for Micro-Meteorological Simulations Hailong Shu, Yue Wang, Huichuang Guo, Chaoqun Li and Zhen Song E3S Web of Conf., 536 (2024) 01012 Published online: 10 June 2024 DOI: 10.1051/e3sconf/202453601012