CD Skripsi
Karakteristik Muka Air Tanah Di Daerah Lereng (Studi Kasus : Kecamatan Tuah Madani, Kota Pekanbaru)
Groundwater is water that occupies a cavity in a geological layer that is continuously replenished by nature. According to David K. Todd's theory, it is known that the groundwater table tends to follow the elevation of the land above it. This theory was proven by several previous researchers in flat areas and obtained appropriate results. This study aims to compare the measurement results of the Aidu Golden Rod (AGR) tool with the monitoring well method, prove David K. Todd's theory on slopes, and map groundwater flow patterns in the study area. The method of collecting ground level elevation data uses Real Time Kinematic (RTK) tools with Networked Transport of RTCM via Internet Protocol (NTRIP) combined with DJI Mavic 3 Multispectral Drone image data. The data was processed using ArcGIS and Agisoft applications to obtain raster maps and topographic contours of the land surface. Groundwater table elevation data used AGR resistivity data and calibrated with monitoring well water depth data. The water table elevation data was then processed using ArcGIS application to obtain a raster map and contours of the water table elevation. Both raster maps were cross-sectioned to obtain their cross section models and prove David K. Todd's theory. The groundwater elevation map was processed into a groundwater flow pattern map by drawing a perpendicular line from the contour. The results of this study found that AGR resistivity data is less effective for obtaining groundwater table elevation than the monitoring well method, David K. Todd's theory is proven to be appropriate in slope areas, and groundwater flow patterns in the study area flow from east to west towards the river.
Keywords: groundwater, slope, elevation, AGR, RTK
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