Comparison of Heat Flux Observation at Three Different Locations around Bandung, West Java

International Conference On Tropical Meteorology And Atmospheric Sciences

生态环境科学;原子能学

Junnaedhi, I.D.G.A.^1 ; Muchtar, K.^1 ; Herho, S.H.S.^1 ; Kombara, P.Y.^1 ; Fajary, F.R.^2

Atmospheric Science Research Group, Faculty of Earth Sciences and Technology, Bandung Institute of Technology, Indonesia^1

National Disaster Management Authority, Indonesia^2

关键词: Bulk transfer;    Bulk transfer coefficients;    Estimation results;    Parameterization method;    Surface heat fluxes;    Surface skin temperature;    Urban residential areas;    Wind shear factors;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/303/1/012014/pdf
DOI  :  10.1088/1755-1315/303/1/012014

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

We observed heat flux profiles at three different locations around Bandung, West Java. Heat flux values were calculated using the covariance method with the vertical flow and potential air temperature fluctuation parameters. Observations have shown diurnal patterns in the three observation locations. Increasing heat flux during morning time flux on all three location shows similar pattern, but decreasing heat flux on the afternoon varies between locations. Urban residential area of Dago shows the most distinct pattern, with a rapid decrease in the afternoon and also after midnight. We also compared observed heat flux data with estimate values using the Bulk Parameterization method. We found that the estimated heat flux was not able to produce values in accordance with the observation data. Wind shear factor and inadequate implementation of the Bulk Parameterization method were thought to causing poor estimation of surface heat flux in Bandung. Improvements in this method, especially on the bulk transfer coefficient and surface skin temperature, are necessary to get better estimation result.