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Comparison of WRF local and nonlocal boundary layer Physics in Greater Kuala Lumpur, Malaysia

  • M C G Ooi
  • , A Chan
  • , S Kumarenthiran
  • , K I Morris
  • , M Y Oozeer
  • , M A Islam
  • , S A Salleh

Research output: Chapter in Book/Report/Published conference proceedingConference contributionpeer-review

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.
Original languageEnglish
Title of host publicationIOP Conference Series: Earth and Environmental Science
PublisherIOP Publishing Ltd.
Volume117
DOIs
Publication statusPublished - 8 Nov 2017
Externally publishedYes
Event3rd International Conference on Research Methodology for Built Environment and Engineering - Shah Alam, Selangor, Malaysia
Duration: 8 Nov 20179 Nov 2017

Publication series

NameIOP Conference Series: Earth and Environmental Science
ISSN (Electronic)1755-1315

Conference

Conference3rd International Conference on Research Methodology for Built Environment and Engineering
Country/TerritoryMalaysia
CitySelangor
Period8/11/179/11/17

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