Open AccessComparison of WRF local and nonlocal boundary layer Physics in Greater Kuala Lumpur, Malaysia
Author(s) -
Maggie Chel Gee Ooi,
Andy Chan,
S. Kumarenthiran,
Kenobi Isima Morris,
Muhammad Yaasiin Oozeer,
MA Islam,
Siti Aekbal Salleh
Publication year - 2018
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/117/1/012015
Subject(s) - kuala lumpur , weather research and forecasting model , advection , planetary boundary layer , troposphere , meteorology , boundary layer , atmosphere (unit) , atmospheric sciences , momentum (technical analysis) , climatology , environmental science , geography , physics , geology , mechanics , thermodynamics , finance , marketing , economics , business
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.