SISTEM PERAMALAN BANJIR SECARA SPATIAL (STUDI KASUS PADA SUNGAI TUNTANG)

Suharyanto Suharyanto, Sumbogo Pranoto, Hari Nugroho, Priyo Nugroho Parmantoro


Abstract


Flooding is a natural disaster which can not be prevented totally, Some countermeasures to alleviate the flooding’s damaging effects have been implemented with some deggree of succes and some with limited succes (fail). These countermeasures include normalizing the river courses, increasing its embankment, providing revetment, or providing with flood control structures. However, these countermeasures are not the only action to reduce flooding damage. An equally important action contributing to the success on reducing flood damaged is non-technical measures especially system information on flooding characteristics This non-technical measure requiring flood forcasting procedures (software, equipments, information exhange, procedures, and coordination). When the time, the places, and the magnitudes of the incoming floods can be predicted with better confidence then the affected regions and people can prepared to anticipate well before the flood occurrence. This will definitelyreduce the possible flood damages. This paper presents the development of flood forecasting function in the Tuntang River, i.e., from Glapan weir to Gubug, and Buyaran bridges. Additioanlly, the flood forecasting functions along the river, i.e., at every potentially vulnerable embankments are also presented. These functions have also been calibrated by the floods occuring on 2001.

Keywords


Flood Forecasting; Tuntang River

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