PENGGUNAAN FISHFINDER GARMIN GPSMAP 585 SEBAGAI ALTERNATIF PENGUKURAN BATIMETRI DI MUARA SUNGAI (STUDI KASUS MUARA SUNGAI BATANG KANDIS)

Junaidi, Junaidi PENGGUNAAN FISHFINDER GARMIN GPSMAP 585 SEBAGAI ALTERNATIF PENGUKURAN BATIMETRI DI MUARA SUNGAI (STUDI KASUS MUARA SUNGAI BATANG KANDIS). Andalas Civil Engineering (ACE) Conference 2018.

Text Sertifikat dan artikel ACE 5_28 Nov 2018_Junaidi_merged.pdf - Published Version Available under License Creative Commons Attribution. Download (582kB)

Abstract

Batang Kandis River, which is located in Pasir Jambak of Padang, often overflows in the event of heavy rain (rainfall intensity > 15 mm), thus inundating the Lubuk Buaya and Pasir Jambak areas. After the construction of the floodway which bypassing the flow of the Batang Kandis river directly into the sea, which previously flow out to the Batang Anai river, the overflow of water has begun to decrease. This is very interesting to study further about the effect of the floodway on water overflow by flow modeling such as with HEC RAS. But the unavailability of secondary data in the form of river cross sections needed in flow modeling, and the amount of cost for measurement, then in this study the author tries to make measurements using the Garmin GPSMAP 585 Fishfinder tool which is relatively inexpensive and accurate in measuring water depth. This research was conducted on May 5, 2018 in Batang Kandis and Batang Kandis Floodway. Processing data using Basecamp, Google Earth Pro, Autocad and Arcgis software. The results of the study show that GPSMAP 585 can show the depth of the river which cannot be measured by the conventional method. In addition, bathymetry measurements can also be carried out up to 10 m intervals with accuracy of 0.2 m.

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