TY - JOUR TI - Comparison of WRF local and nonlocal boundary layer Physics in Greater Kuala Lumpur, Malaysia AU - Maggie Chel Gee Ooi AU - Andy Chan AU - S Kumarenthiran AU - Kenobi Isima Morris AU - Muhammad Yaasiin Oozeer AU - M. A. Islam AU - Siti Aekbal Salleh PY - 2018 JO - IOP Conference Series Earth and Environmental Science DO - 10.1088/1755-1315/117/1/012015 UR - https://doi.org/10.1088/1755-1315/117/1/012015 AB - Abstract The urban boundary layer (UBL) is the internal advection layer of atmosphere above urban region which determines the exchanges of momentum, water and other atmospheric constituents between the urban land surface and the free troposphere. This paper tested the performance of three planetary boundary layer (PBL) physics schemes of Weather Research and Forecast (WRF) software to ensure the appropriate representation of vertical structure of UBL in Greater Kuala Lumpur (GKL). Comparison was conducted on the performance of respective PBL schemes to generate vertical and near-surface weather profile and rainfall. Mellor-Yamada- Janjíc (MYJ) local PBL scheme coupled with Eta MM5 surface layer scheme was found to predict the near-surface temperature and wind profile and mixing height better than the nonlocal schemes during the intermonsoonal period with least influences of the synoptic background weather. ER -