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Contribution of land use changes to meteorological parameters in Greater Jakarta: Case 17 January 2014

机译:土地利用变化对大雅加达的气象参数的贡献:案例2014年1月17日

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The impact of land use changes on meteorological parameters during a heavy rainfall event on 17 January 2014 in Greater Jakarta (GJ) was examined using the Weather Research and Forecasting (WRF) model. This study performed two experimental simulation methods. The first WRF simulation uses default land use (CTL). The second simulation applies the experiment by changing the size of urban and built-up land use (SCE). The Global Forecast System (GFS) data is applied to provide more realistic initial and boundary conditions for the nested model domains (3 km, 1 km). The simulations were initiated at 00:00 UTC January 13, 2014 and the period of modeling was equal to six days. The air temperature and the precipitation pattern in GJ shows a good agreement between the observed and simulated data. The results show a consistent significant contribution of urban development and accompany land use changes in air temperature and precipitation. According to the model simulation, urban and built-up land contributed about 6% of heavy rainfall and about 0.2 degrees of air temperatures in the morning. Simulations indicate that new urban developments led to an intensification and expansion of the rain area. The results can support the decision-making of flooding and watershed management.
机译:使用天气研究和预测(WRF)模型,研究了2014年1月17日在大雅加达(GJ)的大雨事件中对气象参数的影响。该研究进行了两种实验模拟方法。第一个WRF仿真使用默认土地使用(CTL)。第二种仿真通过改变城市和建筑土地使用(SCE)的大小来应用实验。应用全局预测系统(GFS)数据为嵌套模型域提供更现实的初始和边界条件(3公里,1公里)。仿真在2014年1月13日UTC 00:00开始,建模时期等于六天。 GJ中的空气温度和降水模式显示了观察和模拟数据之间的良好一致性。结果表明,城市发展的一致显着贡献,伴随着空气温度和降水的土地利用变化。根据模型仿真,城市和建筑土地占大约6%的大雨和早晨约0.2度的空气温度。模拟表明,新的城市发展导致了雨区的强化和扩张。结果可以支持洪水和流域管理的决策。

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