Geophysical survey for groundwater potential investigation in peat land area, Riau, Indonesia

Islami, Nur; Irianti, Mitri; Azhar,; Nor, Muhammad; Fakhrudin,

doi:10.1088/1755-1315/144/1/012001

Cited by 9 publications

(4 citation statements)

References 12 publications

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“…The porosity of peat in natural peatlands varies significantly with depth; at the surface, porosity can exceed 0.8, whereas at deeper points (~50 cm), it can be less than 0.5 (Rezanezhad et al 2016). Although the peat porosity described in Rezanezhad et al (2016) corresponds to non-tropical peat, a study in Indonesian tropical peatlands revealed that the peat porosity at a 50 cm depth was approximately 0.41 (Islami et al 2018). In KAPAS II, we selected the average of surface (0.8) and deep (0.41) peat porosity values; thus, a porosity of 0.61.…”

Section: Input Parameters and Validation Datasetsmentioning

confidence: 99%

KAPAS II: simulation of peatland wildfires with daily variations of peat moisture content

Purnomo

Apers

Bechtold

et al. 2023

Int. J. Wildland Fire

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Background. Peatland wildfires involve flaming vegetation and smouldering peat. The smouldering behaviour strongly depends on peat moisture, which can change significantly and quickly due to weather or human activities. Aims. We simulated wildfire in peatlands at the field scale and, for the first time, included daily variations of peat moisture. Methods. We developed KAPAS II, a cellular automaton that includes flaming and smouldering, and coupled it with PEATCLSM (Catchment Land Surface Model) for peatland hydrology. Key results. Compared with the satellite observations over 90 days of a 2018 wildfire in Borneo, KAPAS II predictions provide good agreement for burn scars (79% accuracy) and for the number of smouldering hotspots (85% accuracy). For the same burn scar, the model predicts that 54 ha of peat would smoulder when considering daily moisture variations, but only 12 ha if moisture was constant. Simulations at the same Borneo location, but in different years from 2000 to 2019, show the importance of seasons and climate events like El Niño. Conclusion. Temporal variations in peat moisture, which are strongly influenced by weather and climate, are important to predict the behaviour and severity of peatland wildfires. Implications. This model improves our understanding of wildfire behaviour in peatlands and can contribute to its mitigation.

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Section: Input Parameters and Validation Datasetsmentioning

confidence: 99%

KAPAS II: simulation of peatland wildfires with daily variations of peat moisture content

Purnomo

Apers

Bechtold

et al. 2023

Int. J. Wildland Fire

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“…Geophysical techniques provide preassessment of groundwater drilling work for making informed decisions on multiple platforms, such as technical, economic, and social, for the development of groundwater resources. Groundwater is an alternative source of water to the systematized, treated scheme for most communities globally, and it is still expanding boundaries in many facets of the development and implementation stages [1][2][3][4][5]. The detection of groundwater through multiple geophysical methods has developed over the years with the use of electronic instruments and consistent upgrades in technology.…”

Section: Introductionmentioning

confidence: 99%

Groundwater Detection Using Resistivity at Nubutautau Village in Viti Levu in Fiji

Maharaj,

Kumar,

Rollings

et al. 2023

Water

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A geophysical method, electrical resistivity tomography, was applied to identify potential groundwater-bearing zones around Nubutautau village on Viti Levu island, Fiji. Apparent resistivity data of the subsurface were collected through an electrode assembly along survey lines by injecting current into the subsurface using an ABEM Terrameter LS2. The apparent resistivity data were inverted using Res2DINVx64 software to produce the final electrical resistivity through an iterative process to compare the resistivity of layers and draw analogical hydrogeological results. Analysis revealed the presence of two potential groundwater-bearing zones as potential targets for future drilling. The two targets indicated the presence of potentially saturated vertical fractures through which infiltrating rainwater percolates through the volcanic rock towards a deeper basal aquifer. The identification of the two potential targets demonstrated great potential of this geophysical technique to effectively inform drilling operations. A scientific approach can increase the successful delivery of water security interventions in remote, drought-prone communities of the Pacific.

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“…Geoelectrical resistivity method has been used widely to investigate the subsurface condition. The geoelectrical resistivity method was also can be used to detect the thickness of the peat soil and to predict the potential of groundwater resources in the coastal area (Islami et al, 2018a). The method was successfully employed to investigate the heavy metal zone in the groundwater system.…”

Section: Introductionmentioning

confidence: 99%

The Weak Soil Investigation at the Slope Zone in the Hot Spring Area, Rokan Hulu, Indonesia

Islami

2019

J. Geoscience Eng. Environ. Technol.

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The slope failure can occur due to the soil on the slope area is relatively porous and the surface water is easily to move in the soil. The zone of the weak zone of the soil should be detected early to avoid the ground mass movement on the slope area. This study is to investigate the weak zone of the soil on the slope area of the hot spring tourism location using geoelectrical resistivity and soil property analysis methods. The Wenner configuration with a total of 40 electrodes has been employed at each four resistivity survey lines. The electrode spacing was adjusted to be 2 – 5 meter in order to get relatively higher resolution of the resistivity data. Soil samples were collected at several site to measure the soil characteristics of the study area. The soil analysis results show that the study area consist of gravel, sand, clay, silt and weathered methasediment. The geoelectrical resistivity model shows the relatively low resistivity value of about 30 ohm.m at the slope zone which is indicating that the soil has higher porosity. Generally only a few locations with the weak soil zone detected in the slope of the hot spring area, however, it is not potential for the ground mass movement due to the soil is relatively thin.

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Geophysical survey for groundwater potential investigation in peat land area, Riau, Indonesia

Cited by 9 publications

References 12 publications

KAPAS II: simulation of peatland wildfires with daily variations of peat moisture content

KAPAS II: simulation of peatland wildfires with daily variations of peat moisture content

Groundwater Detection Using Resistivity at Nubutautau Village in Viti Levu in Fiji

The Weak Soil Investigation at the Slope Zone in the Hot Spring Area, Rokan Hulu, Indonesia

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