| Records |
| Author |
Kharazi, P.; khazaeli, E.A.; Heshmatpour, A. |
Title  |
Delineation of suitable sites for groundwater dams in the semi-arid environment in the northeast of Iran using GIS-based decision-making method |
Type |
Journal Article |
| Year |
2021 |
Publication |
Groundwater for Sustainable Development |
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| Volume |
15 |
Issue |
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Pages |
100657 |
| Keywords |
Subsurface dam, Hybrid decision-making method, Geographic information system, Analytical hierarchy process, EDAS, TOPSIS1 |
| Abstract |
Competing commercial demands on water resources need to be balanced as the world’s population rises. Generally, groundwater is raised by subsurface dams. In this paper, the geographic information system (GIS) software and a decision-making method were applied. As the first step, the limitations that affect the establishment of the subsurface dam were identified using eliminating criteria by the Boolean logic. Regarding the second step, the most appropriate axis was determined for subsurface dam construction in each of the limits. The analytical hierarchy process (AHP) was applied according to the evaluation criteria in this study. The aim of using AHP was to weigh and prioritize the criteria of the groundwater dam for recognizing appropriate sites. Among various places and regarding the subsurface dam construction, AHP was conducted using a hierarchy process for finding the most suitable sites in the third stage of the decision-making method. Finally, among the ten appropriate sites, cross comparison was drawn by using Decision Expert (DEX), Evaluation based on Distance from Average Solution (EDAS), and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). Compared together (as a process of decision-making), DEX, TOPSIS, and EDAS methods assisted in ranking the most appropriate sites in the final step of subsurface dam pre-selection. A and C axes obtained scores between 1 and 2, among 10 axes according to the numerically ranked locations. Regarding the water shortage issue and better management of the underground water at certain levels, the findings of this study could be useful for the residents of Kajbid-Balaqly Watershed in the dry season. Further, water managers can use the above-mentioned methods for their decisions regarding the proper subsurface dam establishment. |
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2352-801x |
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THL @ christoph.kuells @ Kharazi2021100657 |
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250 |
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Külls, C. |
| Title |
Demonstration des Potentials der Nitrat-Isotopenanalytik für die Strategieentwicklung der Sanierung Nitrat-belasteter Brunnen |
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Report |
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2004 |
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Umweltbundesamt |
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Demonstration des Potentials der Nitrat-Isotopenanalytik für die Strategieentwicklung der Sanierung Nitrat-belasteter Brunnen |
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THL @ christoph.kuells @ |
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75 |
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Zagana, E.; Külls, C.; Udluft, P. |
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Der Wasserhaushalt des Aliakmonas |
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2000 |
Publication |
Vom Wasser |
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94 |
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29-39 |
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THL @ christoph.kuells @ Zagana2000saa |
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34 |
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Adolph, G.; Römer, T.; Külls, C. |
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Deriving complex groundwater age structure by combining age dating and analytic element modelling |
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G-DAT 2008-Leipzig |
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12 |
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THL @ christoph.kuells @ Adolph2008deriving |
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55 |
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Baram, S.; Ronen, Z.; Kurtzman, D.; Külls, C.; Dahan, O. |
| Title |
Desiccation-crack-induced salinization in deep clay sediment |
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Journal Article |
| Year |
2013 |
Publication |
Hydrology and Earth System Sciences |
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17 |
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4 |
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1533 |
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Copernicus GmbH |
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THL @ christoph.kuells @ Baram2013desiccation |
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21 |
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| Author |
Adolph, G.; KÜlls, C.; Willscheid, A. |
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Determination and validation of age structures as an improved measure of hydrological dynamics |
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2007 |
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Geophysical Research Abstracts |
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9 |
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08013 |
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THL @ christoph.kuells @ Adolph2007determination |
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58 |
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Zaeri, A.; Mohammadi, Z.; Rezanezhad, F. |
| Title |
Determining the source and mechanism of river salinity: An integrated regional study |
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Journal Article |
| Year |
2023 |
Publication |
Journal of Hydrology: Regional Studies |
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47 |
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101411 |
| Keywords |
River salinity, Salinization mechanism, Isotope, Halite brine, River sinuosity |
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Study region Zohreh River Basin, Southwest Iran Study focus The salinity of Zohreh River sharply increases in three salinity zones (SZs) along the river named SZ1, SZ2 (the focus of this study), and SZ3. Determining the salinity sources and salinization mechanism using an integrated approach including geological, hydrochemical, isotopic, geophysical, river sinuosity and hydrocarbon analysis are the main objectives of this study. The study focuses on the combination of evidence of regional-scale (i.e., river sinuosity and seismic data) and small-scale (i.e., drilling core analysis). New hydrologic insights for the region Among several known sources of river salinity, it was found that the water quality of the Zohreh River is mainly threatened by the salt-bearing Gachsaran Formation and oil-field brine. It is concluded that halite brine and oil-field brine simultaneously cause the salinization in SZ2, and their contributions were delineated to be 95% and 5%, respectively. The lack of reliable geological evidence to support halite dissolution in surficial layers by circulating waters suggests the possibility of a deep source of halite brine in SZ2. The results revealed that deep halite brine of the salt layers of Gachsaran Formation is mainly responsible for the salinization of SZ2. The mechanism of deep brine penetration to the river through the hidden fault failures detected by the combination of river sinuosity analysis and geophysical data for the first time. |
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2214-5818 |
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THL @ christoph.kuells @ Zaeri2023101411 |
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251 |
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Külls, C.J.; Ritter, M. |
| Title |
Deuterium excess anomaly of precipitation in Svalbard |
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Conference Article |
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2010 |
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American Geophysical Union |
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2010 |
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51 |
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THL @ christoph.kuells @ Kuells2010deuterium |
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50 |
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Romeo, N.; Mabry, J.; Hillegonds, D.; Kainz, G.; Jaklitsch, M.; Matsumoto, T. |
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Developments of a field gas extraction device and krypton purification system for groundwater radio-krypton dating at the IAEA |
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Journal Article |
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2022 |
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Applied Radiation and Isotopes |
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189 |
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110450 |
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The long-lived radio-krypton isotope 81Kr (t1/2 = 2.29 × 105 yr) is an ideal tracer for old groundwater age dating in the range of 105–106 years which goes beyond the reach of radio-carbon (14C) age dating. Analytical breakthrough made over the last two decades in Atom Trap Trace Analysis (ATTA) has enabled the use of this isotope with extremely low abundance (81Kr/Kr = 6 × 10−13) to be used as a practical dating tool for very old groundwater. The International Atomic Energy Agency aims to provide this new isotope tool for better groundwater resource management of Member States and developed a field sampling device to collect dissolved gas samples from groundwater and a system to separate and purify trace amounts of krypton from the gas samples for the ATTA analysis. The design, setup and performances of our sampling and purification systems are described here. Our system can produce a high purity aliquot of about 5 μL of krypton from 5 L of air sample (recovery yield of >90%). The samples made by our system were confirmed to be acceptable for the ATTA analysis. |
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0969-8043 |
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THL @ christoph.kuells @ Romeo2022110450 |
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214 |
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Severi, A.; Masoudian, M.; Kordi, E.; Roettcher, K. |
| Title |
Discharge coefficient of combined-free over-under flow on a cylindrical weir-gate |
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Journal Article |
| Year |
2015 |
Publication |
ISH Journal of Hydraulic Engineering |
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21 |
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1 |
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42-52 |
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Taylor & Francis |
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THL @ christoph.kuells @ doi:10.1080/09715010.2014.939503 |
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88 |
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