Groundwater resources mapping for small island using Geoelectrical Technique the case study of Ternate Island

Hadi, M. Pramono; Salam, Ramdani; Achmad, Rahim

doi:10.22146/ijg.41242

Cited by 5 publications

(3 citation statements)

References 2 publications

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“…The value 1.67 was used for the lag time (TL) defined as the time difference between the center of mass rainfall excess and the peak discharge (formula 6) [16] [17]. Tc = 1.67 TL or TL=0.6Tc.......... (6) Based on the rainfall data, CN value and TL value, the flow rate for each sub-watershed can be calculated. In Figure 7 an example of a flood hydrograph is presented in the D01 sub-watershed (upstream) and in D55 (middle part) resulting from modelling for 2021.…”

Section: Hydrological Modellingmentioning

confidence: 99%

“…As consequences, river's length are tend to be shorter than where it dominates by continent such as countries in central Asia. Therefore, the resources are more vulnerable when compared to continental regions [6]. Each island have its own water resources potency, however, because most of the island separate by the ocean, hence this potency tend to be used locally.…”

Section: Introductionmentioning

confidence: 99%

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Hydrological Potential Mapping to Generate Micro-Hydro Power in Code River

Hadi,

Suarma,

Sumunar

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Fossil fuel energy utilization in Indonesia is consider high consisting of 65% coal sources and 20% fuel, while only 15% are generate from new and renewable energy sources. This number is critical due to the commitment to reduce greenhouse gases by 29% or 41% as declared Glasgow in 2021. Alternatives source of energy could be obtained from solar, wind, and water. The energy generate from those sources are consider intermittent, however, water utilization can be optimized by construct several weirs (small-scale reservoirs) to accumulate the rain water as a kinetic energy source to generate electricity. Only some part of the world, especially tropical Indonesia archipelago, has enough rain to generate energy. This research intends to measure the potency of Code River, representing small river in generating micro-hydro power. The Code River is representing a small river on the island of Java as part of the archipelago in Indonesia which has the characteristics of a river, a small water catchment area, and has high discharge input from rainfall because it is in the tropics. The weir is equipped with a penstock pipe, as water intake to the generator. The pipe inner diameter made of high-density polyethylene material can be 200, 300, 400, 500, 700, 800, 1,000 and 1,600 mm. Each pipe size can produce discharges of 0.42, 0.75, 1.62, 2.1, 3.1, 3.5, 6.0 and 24.0 m3/s respectively. The combination of discharge and head height will produce electrical energy (in watts). Based on hydrological modelling consisting of 52 sub-watersheds, the highest electricity production in 2021 is 8,359,218.3 kWh with 800 mm pipe size (3.5 m3/sec discharge). The electricity production is based on reliable discharge between 7-96% which is different for each weir location. In conclusion, the electricity supply for the whole year (100%) is inadequate

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Section: Hydrological Modellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hydrological Potential Mapping to Generate Micro-Hydro Power in Code River

Hadi,

Suarma,

Sumunar

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Air tanah adalah salah satu elemen geosfer yang berperanan penting bagi tercapaianya pembangunan berkelanjutan. Sebagai salah satu sumber daya alam, air tanah digunakan sebagai sumber kebutuhan air bersih beragam sektor dan aktivitas penduduk (Hadi, Salam, & Achmad, 2019;Kodoatie & Widiarto, 2016;UNESCO, 2004). Air tanah digunakan sebagai sumber air bersih karena kondisi fisik, kimia, dan bekteriologinya lebih baik daripada air permukaan.…”

Section: Pendahuluanunclassified

Peningkatan Literasi Sumber Daya Air Tanah Menggunakan Media Interaktif Berbasis Android

Sejati¹,

Nurhidayanto

2022

DJPKM

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Groundwater is one of the elements of the geosphere that plays an important role in achieving sustainable development. The decrease in the quantity and quality of groundwater is very likely to occur due to intensive anthropogenic dynamics which often ignore environmental rules. The neglect of environmental rules that have the potential to reduce the quantity and quality of groundwater resources is caused by a lack of literacy and knowledge of groundwater science. Literacy of groundwater resources needs to be applied to all levels of society, especially the younger generation as the successor of sustainable development so that groundwater sustainability is maintained. Literacy resources to increase insight need to contain visual elements, animations, descriptions and can be accessed by Android-based smart phones. The realization of solutions to partner problems will be realized through training, discussions, and questions and answers. The training activities were carried out to provide an understanding of how to download, install, and use the Groundwater App with a smartphone. Discussion and question and answer activities were carried out to discuss the visual and interactive substance presented by the application. The activities that have been carried out have been able to increase the insight of the younger generation about groundwater resources.

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Sub-surface configuration in the northern part of Lembang groundwater basin recharge area

Nugraha,

Nur,

Sudrajat

et al. 2023

Appl Water Sci

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Lembang groundwater basin has an area of 209 km2. Increased tourism activities in the Lembang Groundwater Basin require sufficient groundwater resources to support the sustainability of these tourism activities. The purpose of this study was to analyze the hydrostratigraphy of the groundwater recharge zone of the Lembang groundwater basin in the Cikole-Lembang. Electrical Resistivity Tomography (ERT) with dipole–dipole electrode array and seismic refraction was used to analyze the hydrostratigraphy. The results of ERT and seismic refraction inversion show that Tangkubanparahu Pyroclastic Fall 2 can be characterized as aquifers. This layer consists of low (123–292 $$\Omega $$ Ω m) and intermediate (293–700 $$\Omega $$ Ω m) resistivity value and also has low (300–1350 m/s) to medium (2700–1350 m/s) velocity. Tangkubanparahu lava (Tl) layer has a high resistivity value (701–3875 $$\Omega $$ Ω m) and high (1350–2999 m/s) velocity. The Tangkubanparahu Pyroclastic Fall 1 has a resistivity of 300–700 ohms. Tangkubanparahu (Tl) lava deposits can be characterized as fracture aquifer and impermeable layers in the Tangkubanparahu volcanic hydrogeological system depend on the historical structural geology event.

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Groundwater resources mapping for small island using Geoelectrical Technique the case study of Ternate Island

Cited by 5 publications

References 2 publications

Hydrological Potential Mapping to Generate Micro-Hydro Power in Code River

Hydrological Potential Mapping to Generate Micro-Hydro Power in Code River

Peningkatan Literasi Sumber Daya Air Tanah Menggunakan Media Interaktif Berbasis Android

Sub-surface configuration in the northern part of Lembang groundwater basin recharge area

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