Hydraulic interconnections study of Seropan-Ngreneng-Bribin underground rivers in Gunung Kidul karst area using tracer technique

Sidauruk, Paston; Prasetio, Rasi; Satrio, N.A.

doi:10.1504/ijw.2018.090187

Cited by 3 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This indicates that all of the surface water samples have undergone evaporation process before entering Lake Toba. The same phenomenon has also been observed by one of the authors during the study of "Hydraulic interconnections study of Seropan-Ngreneng-Bribin underground rivers in Gunung Kidul karst area using tracer technique" [19]. In the study, it was found that the slope of the linear relationship between  18 O and D values in the underground rivers was 4.77 which is very close to the present study result of 4.89.…”

Section: Surface Water Samplessupporting

confidence: 90%

See 1 more Smart Citation

Isotopic Characterization of Precipitation, Inflow, and Outflow of Lake Toba as a First Assessment of Lake Water Balance Study

2018

View full text Add to dashboard Cite

Isotopic characterization of all identified hydrological units in Lake Toba such as precipitation, inflows, outflows, and lake water, as a first assessment of lake water balance study, has been conducted. The isotopic characterization was done through the interpretation of the relationship of D and  18 O values of collected samples from various water sources and their variations as a function of time and space. Rain water samples were collected from four rain collectors that were installed in the study area in a monthly sampling for a period of 12 months in 2014. Several samples from various water sources i.e., inflow streams, outflows, springs, and lake water, were also collected 2-3 times during this sampling period. From monthly sampling of rain water, local meteoric water line (LMWL) and the equation of elevations versus D values have been constructed. Due to the slightly higher temperature in the study area compared with the average temperature on the other parts of the world, the slope of the constructed LMWL is slightly less than the slope of global meteoric water line. Based on the equation of elevations versus D values, the elevations of four springs around study area have been identified. From the linear relationship of D and  18 O values of collected samples from inflow streams, it was found that most of the samples have experienced evaporation process before entering the lake. Due to mixing with other surface water and longer transit time, the D and  18 O values of those samples from streams in the Sumatran side are more enriched than those samples from streams in the Samosir side. It was also found that lake water has experienced significant evaporation as indicated by the D and  18 O values that were more enriched than any other samples. The D and  18 O of Asahan River samples, the only output of Lake Toba, were found to be very close to the D and  18 O of the lake. This is because almost all water that flowed in Asahan River originated from the lake.

show abstract

Section: Surface Water Samplessupporting

confidence: 90%

“…O and D are part of the constituents of water molecules. Three different molecules of water that are normally used by hydrologists are H2 16 O (18), HD 16 O (19), and H2 18 O (20) in which the number in the bracket represents molecular mass. In nature, the abundance of HD 16 O and H2 18 O are extremely small compared with the abundance of H2 16 O.…”

mentioning

confidence: 99%

Isotopic Characterization of Precipitation, Inflow, and Outflow of Lake Toba as a First Assessment of Lake Water Balance Study

2018

View full text Add to dashboard Cite

show abstract

Groundwater Flooding due to Tropical Cyclone Cempaka in Ngreneng Karst Window, Gunungsewu Karst Area, Indonesia

et al. 2019

View full text Add to dashboard Cite

Tropical Cyclone Cempaka occurred on November 27, 2017 in the Indian Ocean, just south of Central Java. This incident induced high rainfall leading to flash floods in the southern part of Central Java, including Gunungsewu Karst Area. The highest rainfall recorded on November 28, 2017, in this area was 239 mm/day (Automatic Rainfall Recorder/ARR Station in Pindul Cave) and 341 mm/day (ARR Station in Tepus). The extreme rainfall also caused groundwater flood in Ngreneng Karst Window. This study aimed to analyze the mechanism of this flood. The results of the analysis showed that it was caused by water filling up the conduit passage in the entire Bribin-Baron underground river system. The flow of the conduit pushed the diffuse flow into the surface fast, and the water that came out of Ngreneng Karst Window was thereby clear. The inundation lasted for ten days and submerged up to 26.4 ha of the study area.

show abstract

Water quality analysis of bribin underground river as the source of raw water for a government-owned water company (pdam) in the bribin management unit, Gunungkidul regency-Indonesia

Widyastuti

Irshabdillah

Firizqi

2020

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

Bribin Underground River supplies raw water for a government-owned water company, PDAM, and has more potential than the other three of its sources, namely Baron, Seropan, and Ngobaran. In addition to sufficient quantity, raw water has to meet a set of water quality standards. This research was intended to describe the quality of raw water from the source to the service areas spatially. The water quality was measured directly in the field and then in the laboratory using the water samples collected by the purposive sampling technique. The test analyzed physical, biological, and chemical parameters. According to Governor Regulation No. 20 of 2008, some water quality parameters of Bribin Underground River exceed the standards for Class I raw water i.e. TSS, pH and NO3. Besides, according to the Decree of Health Minister No 492/MENKES/PER/IV/2010, pH and total coliform number exceed the standard. A spatial variation in water quality was detected from Bribin Underground River to customer taps, especially in parameters that have significant changes, such as pH, EC, TDS, TSS, nitrate, and total coliform. Spatially, the content of TDS and EC that correlates each other show a fluctuating result according to water flow treatment in water treatment plant (WTP) and the reservoir. pH and total coliform show increasing trends of number from the source to customer taps, whereas TSS and nitrate show decline trends.

show abstract

Hydraulic interconnections study of Seropan-Ngreneng-Bribin underground rivers in Gunung Kidul karst area using tracer technique

Cited by 3 publications

References 12 publications

Isotopic Characterization of Precipitation, Inflow, and Outflow of Lake Toba as a First Assessment of Lake Water Balance Study

Isotopic Characterization of Precipitation, Inflow, and Outflow of Lake Toba as a First Assessment of Lake Water Balance Study

Groundwater Flooding due to Tropical Cyclone Cempaka in Ngreneng Karst Window, Gunungsewu Karst Area, Indonesia

Water quality analysis of bribin underground river as the source of raw water for a government-owned water company (pdam) in the bribin management unit, Gunungkidul regency-Indonesia

Contact Info

Product

Resources

About