PRIORITAS ARAH PENEMPATAN TITIK PENGAMATAN KECEPATAN VERTIKAL DI KALIMANTAN MENGGUNAKAN ANALISIS ANISOTROPI
The existence of the forest as lungs of the world played an important role in generating oxygen gas. Borneo island is one of the world's lungs because of the extensive forests that reached 40.8 million hectares. However, at present the quality and quantity of forest on the island of Borneo precipitously due to deforestation and forest fires. Forest fires on the island of Borneo into the world spotlight because of the spread of the smoke caused air pollution in various regions of Indonesia. The impact of the spread of smoke of forest fires was influenced by the vertical wind speed in the area. This research aims to add a consideration in determining the vertical wind speed observation point on the island of Borneo, making known the priority distribution of the placement of the observation point can be used as mitigation efforts the spread of the forest fire smoke. The vertical wind speed data island of Borneo in June and October starting in 2008 – 2017 is presented in the form of spatial. The wind data analysis using the method of variogram surface with the software SAGA. Based on the analysis of anisotropy, obtained the results that the vertical wind speed observations on Borneo Island tend to have priority East-West direction in June to August, the priority of the Southeast-Northwest in September, and priority direction of Northeast-Southwest in October. Analysis and modeling of vertical wind speed on the island of Borneo in general get the dominant patterns of the East-West direction priority, so the priority placement of vertical velocity observations point on the island of Borneo is effective if it forms oval pattern which extends from North to South.
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