STUDI RASIONALISASI POS CURAH HUJAN SISTEM SUNGAI SEMARANG BARAT
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Abstract
Hydrological data is basic data in the design or planning of water structures. Hydrological data was taken from
hydrological stations in the study area. In catchment area with a small number of stations, this will result in a greater
error rate. Meanwhile, a large number of stations will of course incur large operational and maintenance costs.
Therefore, rationalization studies are needed to obtain an effective and efficient stational network. This research was
conducted on the West Semarang river system. In this research, data is needed, including rainfall stations and
discharge or gauged stations data, and topographic data. The methods used are WMO, isohyet, stepwise and kagan.
From the results of analysis it’s known that based on WMO method, the existing rainfall station network meets the
criteria issued. The stepwise method analysis produces five rainfall stations that are effective and have an influence
on the Kalipancur watershed. An effective rainfall station network based on the Kagan method requires 18 stations
with a distance between stations of 5.13 km. In isohyet method, it can be seen that isohyet using the IDW method is
closer to field conditions. From the results of the multi-criteria analysis, it can be seen that the recommendation for
the rainfall station network in West Semarang River System is to maintain 7 rainfall stations, recommending 7 rainfall
stations for closed or relocated, as well as adding 12 new rainfall stations at points kagan still empty.
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This work is licensed under Jurnal Mitra Teknik Sipil (JMTS) Creative Commons Attribution-ShareAlike 4.0 International License.References
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