Hydrological and chemical budgets in a volcanic caldera lake: Lake Kussharo, Hokkaido, Japan

Chikita, Kazuhisa A.; Nishi, M.; Fukuyama, Ryuji; Hamahara, Kazuhiro

doi:10.1016/j.jhydrol.2003.12.014

Cited by 10 publications

(3 citation statements)

References 5 publications

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“…However, spatial distributions of water temperatures in the lake are not shown, and groundwater input and output in the water budget are not estimated. In a volcanic caldera lake, Lake Kussharo, Japan, Chikita et al [17] evaluated groundwater outflow and groundwater inflow including the input of geothermal water by estimating the water and chemical budgets of the lake. In the present study, the heat budget of a hydrothermal pond with water temperature of mostly 50-70 • C is estimated over four years.…”

Section: Introductionmentioning

confidence: 99%

Geothermal Linkage between a Hydrothermal Pond and a Deep Lake: Kuttara Volcano, Japan

et al. 2019

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Kuttara Volcano, Hokkaido, Japan, consists of temperate Lake Kuttara and the western Noboribetsu geothermal area. In order to explore geothermal relations between Lake Kuttara and the geothermal area, the heat budget of a hydrothermal pond, Okunoyu, was evaluated, and the heat storage change in the lower layer of Lake Kuttara was calculated by monitoring the water temperature at the deepest point. The lake water temperature consistently increased during the thermal stratification in June–November of 2013–2016. The heat flux QB at lake bottom was then calculated at a range of 4.1–10.9 W/m2, which is probably due to the leakage from a hydrothermal reservoir below the lake bottom. Meanwhile, the heat flux HGin by geothermal groundwater input in Okunoyu was evaluated at 3.5–8.5 kW/m2, which is rapidly supplied through faults from underlying hydrothermal reservoirs. With a time lag of 5 months to monthly mean QB values in Lake Kuttara, the correlation with monthly mean HGin in Okunoyu was significant (R2 = 0.586; p < 0.01). Applying Darcy’s law to the leakage from the hydrothermal reservoir at 260–310 m below the lake bottom, the time needed for groundwater’s passage through the media 260–310 m thick was evaluated at 148–149 days (ca. 5 months). These findings suggest that the hydrothermal reservoir below lake bottom and the underlying hydrothermal reservoirs in the western geothermal area are both connected to a unique geothermal source in the deeper zone as a geothermal flow system of Kuttara Volcano.

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Section: Introductionmentioning

confidence: 99%

Geothermal Linkage between a Hydrothermal Pond and a Deep Lake: Kuttara Volcano, Japan

et al. 2019

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“…Chikita et al (2004) examined how ground-water output and input contribute to a lake's chemistry by estimating the hydrological and chemical budgets of a volcanic caldera lake in Hokkaido, Japan. Atekwana and Richardson (2004) measured major inorganic ions and stable C and O isotopes in surface and ground-water of the Corral Canyon Meadows Complex (Nevada, USA) to determine whether stream water or ground-water was the water source supporting vegetation.…”

Section: Introductionmentioning

confidence: 99%

Estimation of ground-water exchange with semi-arid playa lakes (Antequera region, southern Spain)

Rodríguez‐Rodríguez

Benavente

Julián

et al. 2006

Journal of Arid Environments

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“…Lake Kussharo, Hokkaido, Japan, exists in the Kussahro Caldera (43 • 37 35 N, 144 • 20 08 E) which includes Atosanupuri Volcano and is thermally affected by hot spring water from a geothermal heat source. Chikita et al [8] evaluated the groundwater inflow and outflow in Lake Kussharo by estimating the hydrological and chemical budgets of the lake and specified the location of the lake bottom area to outflow the lake water as groundwater. Kuttara Volcano, Hokkaido, Japan (42 • 30 19 N, 141 • 08 40 E), has an active volcanic area with hydrothermal ponds and geothermal fields in the westernmost region and Lake Kuttara in the eastern region.…”

Section: Introductionmentioning

confidence: 99%

Hydrological and Chemical Budgets of Okama Crater Lake in Active Zao Volcano, Japan

et al. 2022

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The Okama Crater Lake is located in the highly active Zao Volcano on the boundary of Miyagi and Yamagata Prefectures, Japan. At present, the lake stays relatively calm with neither bubbling, steaming nor gas smell at a pH of 3.2–3.4, though the lake did change color with steaming from the water surface in 1939 as the result of one of Zao’s volcanic activities. In order to clarify the geothermal effect on Okama and the groundwater flow system below or around Okama, field observations were performed in 2019 and 2020. Groundwater inflow and outflow in Okama were separately evaluated by estimating the hydrological and chemical budgets of the lake, based on the hydrometeorology, water temperature and river inflow measured in the field. The average groundwater inflow and outflow were estimated at 0.012 m3/s and 0.039 m3/s during the non-rainfall periods of 2020, respectively. A surplus of groundwater outflow makes the lake level consistently decrease during non-rainfall periods or the completely ice-covered season. In the completely ice-covered periods, the water temperature consistently increased at 0–15 m above the lake bottom, which is probably due to thermal leakage from a hydrothermal reservoir below the lake bottom. The heat fluxes averaged over December 2019–April 2020 and December 2020–March 2021 were calculated at 2.5 and 2.9 W/m2, respectively. A coupling between the estimated groundwater inflow and the calculated geothermal heat flux was used to evaluate the temperature of inflowing groundwater.

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Hydrological and chemical budgets in a volcanic caldera lake: Lake Kussharo, Hokkaido, Japan

Cited by 10 publications

References 5 publications

Geothermal Linkage between a Hydrothermal Pond and a Deep Lake: Kuttara Volcano, Japan

Geothermal Linkage between a Hydrothermal Pond and a Deep Lake: Kuttara Volcano, Japan

Estimation of ground-water exchange with semi-arid playa lakes (Antequera region, southern Spain)

Hydrological and Chemical Budgets of Okama Crater Lake in Active Zao Volcano, Japan

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