Use of recession-curve analysis for estimation of karstification degree and its application in assessing overflow/underflow conditions in closely spaced karstic springs

Malík, Peter; Vojtkova, Silvia

doi:10.1007/s12665-012-1596-0

Cited by 63 publications

(55 citation statements)

References 13 publications

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“…Penelitian ini mempunyai tujuan uantuk mengetahui distribusi sepasial perbedaan tingkat karstifikasi (dengan rumus Malik and Vojtkova, 2012) pada beberapa mataair dan sungai bawahtanah karst…”

Section: Tujuan Penelitianunclassified

Section: Introductionmentioning

confidence: 99%

“…In addition, secondary hydrograph data from several underground rivers and karst springs were used from Toto Cave, Seropan Cave, Beton Spring, Gilap Cave, Ngreneng Cave, and Bribin Cave. Furthermore, the karstification level calculation was performed by using the formula developed by Malik and Vojtkova (2012) to spatially describe the level of karst aquifer development.The calculation of karstification degree by using some selected data of flood recession confirms the lowest value of 3.7 (in Petoyan Spring) to the highest value of 7.7 in Bribin River. The value of 3.7 (lowest) indicates the combination of two or more sub-regimes with merely laminar flow characterized by different discharge coefficients, with irregularly developed aquifer of fissure network, with majority of open macro-fissures, also with possible presence of karst conduits in extreme condition.…”

mentioning

confidence: 99%

“…Selain itu, data sekunder dari beberapa hidrograf sungai bawah tanah dan mataair karst juga digunakan yakni data-data di Gua Toto, Gua Seropan, Mataair Beton, Gua Gilap, Gua Ngreneng, dan Gua Bribin. Selanjutnya, perhitungan tingkat karstifikasi dilakukan menggunakan rumus yang dikembangkan oleh Malik and Vojtkova (2012) pada lokasi-lokasi tersebut untuk kemudian ditentukan fase karstifikasi akuifer daerah tangkapannya secara spasial.…”

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Sebaran Spasial Tingkat Karstifikasi Area Pada Beberapa Mataair Dan Sungai Bawah Tanah Karst Menggunakan Rumus Resesi Hidrograph Malik Vojtkova (2012)

Adji¹

2017

Preprint

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This research was conducted in several springs and underground rivers in Gunung Sewu karst areas, Gunung Kidul, Yogyakarta and karst area of Tuban, East Java. The objective of this research is to determine the level of karstification in some springs and underground rivers in the two karst areas by using the available data of hydrograph recession.This research uses an inductive survey method, namely by installing two water level recording devices within Petoyan and Ngerong Springs during the period of 6 months in order to obtain the flood hydrograph data at the beginning, middle, and end of the rainy season. In addition, secondary hydrograph data from several underground rivers and karst springs were used from Toto Cave, Seropan Cave, Beton Spring, Gilap Cave, Ngreneng Cave, and Bribin Cave. Furthermore, the karstification level calculation was performed by using the formula developed by Malik and Vojtkova (2012) to spatially describe the level of karst aquifer development.The calculation of karstification degree by using some selected data of flood recession confirms the lowest value of 3.7 (in Petoyan Spring) to the highest value of 7.7 in Bribin River. The value of 3.7 (lowest) indicates the combination of two or more sub-regimes with merely laminar flow characterized by different discharge coefficients, with irregularly developed aquifer of fissure network, with majority of open macro-fissures, also with possible presence of karst conduits in extreme condition. Meanwhile, the value of 7.7 indicates highly developed karstification of the aquifer, formed by large open conduits (karst channels). Substantial role in groundwater discharge is played by subregimes with turbulent flow, while sub-regime with laminar flow is less significant. Furthermore, the general degree of karstification in the Gunung Sewu has been at a level which is more developed than in the karst region of Rengel, except those found in Petoyan Spring, which is located in the western part of Gunung Sewu karst region, which has karstification level in the beginning level with undeveloped type of turbulent flow.

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Section: Tujuan Penelitianunclassified

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

unclassified

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Sebaran Spasial Tingkat Karstifikasi Area Pada Beberapa Mataair Dan Sungai Bawah Tanah Karst Menggunakan Rumus Resesi Hidrograph Malik Vojtkova (2012)

Adji¹

2017

Preprint

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“…In surface-water hydrology, constructing the master recession curve is a routine step in base-flow studies. However, the master curve has been also constructed and used for karst springs (e.g., Angelini and Dragoni, 1997;Desmarais and Rojstaczer, 2002;Posavec et al, 2006Posavec et al, , 2010Doctor, 2008;Malík and Vojtková , 2012;Gregor and Malík, 2012).…”

Section: Introductionmentioning

confidence: 99%

Estimation of Groundwater Mean Residence Time in Unconfined Karst Aquifers Using Recession Curves

Kavousi¹,

Raeisi²

2015

JCKS

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A new parsimonious method is proposed to estimate the mean residence time of groundwater emerging at any specific time during recession periods from karst springs. The method is applicable to unconfined karstic aquifers with no-flow boundaries. The only required data are numerous consecutive spring hydrographs involving a wide range of discharge from high to low flow and the relevant precipitation hyetographs. First, a master recession curve is constructed using the matching-strip method. Then, discharge components corresponding to the individual hydrographs at any desired time are estimated by extrapolation of recession curves based on the master curve. Residence times are also taken from the time elapsed since the events' centroids. Finally, the mean residence time is calculated by a discharge-weighted average. The proposed method was evaluated for the Sheshpeer Spring in Iran. There are 259 sinkholes in the catchment area of the Sheshpeer unconfined aquifer, and all the boundaries are physically no-flow. The mean residence time calculated by the proposed method was about one year longer than that of uranine dye tracer. The tracer mean time is representative of flowing water between the injection and emergence points, but the mean time by the proposed method is representative of all active circulating water throughout the entire aquifer. The proposed method is more appropriate, in practice, especially in groundwater recharge and contaminant vulnerability assessments, than isotopic methods, in cases where a small portion of water with exceptionally high residence time increases the mean. Moreover, isotopic methods are more expensive and not capable of directly determining the residence-time distribution.

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Long‐term assessment of nutrient flow pathway dynamics and in‐stream fate in a temperate karst agroecosystem watershed

Ford

Husic

Fogle

et al. 2019

Hydrological Processes

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Nutrient dynamics in karst agroecosystems remain poorly understood, in part due to limited long-term nested datasets that can discriminate upland and in-stream processes. We present a 10-year dataset from a karst watershed in the Inner-Bluegrass Region of central Kentucky, consisting of nitrate (nitrate-N [NO 3 − ]), dissolved reactive phosphorus (DRP), total organic carbon (TOC), and total ammoniacal-N (TAN) measurements at nested spring and stream sites as well as flowrate at the watershed outlet. Hydrograph separation techniques were coupled with multiple linear regression and Empirical Mode Decomposition time-series analysis to determine significance of seasonal processes and to generate continuous estimates of nutrient pathway loadings. Further, we used model results of benthic algae growth and decomposition dynamics from a nearby watershed to assess if transient storage in algal biomass could explain differences in spring and downstream watershed nutrient loading. Results highlight statistically significant seasonality for all nutrients at stream sites, but only for NO 3 − at springs with longitudinal variability showing significant decreases occurring from spring to stream sites for NO 3 − and DRP, and significant increases for TOC and TAN. Pathway loading analysis highlighted the importance of slow flow pathways to source approximately 70% of DRP and 80% of NO 3 − . Results for in-stream dynamics suggest that benthic autotroph dynamics can explain summer deviations for TOC, TAN, and DRP but not NO 3 − . Regarding upland dynamics, our findings agree well with existing perceptions in karst for N pathways and upland source seasonality but deviate from perceptions that karst conduits are retentive of P, reflecting the limited buffering capacity of the soil profile and conduit sediments in the Inner-Bluegrass. Regarding in-stream fate, our findings highlighted the significance of seasonally driven nutrient processing in the bedrock-controlled streambed to influence nutrient fluxes at the watershed outlet. Contrary to existing perceptions, we found high N attenuation and an unexplained NO 3 − sink in the bedrock stream, leading us to postulate that floating macrophytes facilitate high rates of denitrification. KEYWORDS bedrock stream, hydrologic pathways, in-stream fate, karst agroecosystem watershed, nutrient loadings, time-series analysis

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Use of recession-curve analysis for estimation of karstification degree and its application in assessing overflow/underflow conditions in closely spaced karstic springs

Cited by 63 publications

References 13 publications

Sebaran Spasial Tingkat Karstifikasi Area Pada Beberapa Mataair Dan Sungai Bawah Tanah Karst Menggunakan Rumus Resesi Hidrograph Malik Vojtkova (2012)

Sebaran Spasial Tingkat Karstifikasi Area Pada Beberapa Mataair Dan Sungai Bawah Tanah Karst Menggunakan Rumus Resesi Hidrograph Malik Vojtkova (2012)

Estimation of Groundwater Mean Residence Time in Unconfined Karst Aquifers Using Recession Curves

Long‐term assessment of nutrient flow pathway dynamics and in‐stream fate in a temperate karst agroecosystem watershed

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