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Author Külls, C.J.; Ritter, M. openurl 
  Title Deuterium excess anomaly of precipitation in Svalbard Type Conference Article
  Year 2010 Publication American Geophysical Union Abbreviated Journal  
  Volume (down) 2010 Issue Pages 51  
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  Call Number THL @ christoph.kuells @ Kuells2010deuterium Serial 50  
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Author Külls, C.J.; Zabori, J. openurl 
  Title On the representation of hydrological processes in current SVAT schemes-comparison and perspective Type Conference Article
  Year 2009 Publication American Geophysical Union Fall Meeting Abbreviated Journal  
  Volume (down) 2009 Issue Pages 14  
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  Call Number THL @ christoph.kuells @ Kuells2009representation Serial 52  
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Author Müller, M.; Alaoui, A.; Külls, C.; Leistert, H.; Meusburger, K.; Stumpp, C.; Weiler, M.; Alewell, C. url  doi
openurl 
  Title Tracking water pathways in steep hillslopes by δ18O depth profiles of soil water Type Journal Article
  Year 2014 Publication Journal of hydrology Abbreviated Journal  
  Volume (down) 519 Issue Pages 340-352  
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  Publisher Elsevier Place of Publication Editor  
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  Call Number THL @ christoph.kuells @ Mueller2014tracking Serial 20  
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Author Jin, Z.; Külls, C. doi  openurl
  Title FDM based OA-ICOS for high accuracy 13C quantification in gaseous CO2 Type Journal Article
  Year 2020 Publication Earth and Environmental Science Abbreviated Journal EES  
  Volume (down) 446 Issue 3 Pages 032061  
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  Series Editor Series Title IOP Conference Series Abbreviated Series Title  
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  Call Number THL @ christoph.kuells @ Jin2020fdm Serial 16  
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Author Morin, E.; Grodek, T.; Dahan, O.; Benito, G.; Külls, C.; Jacoby, Y.; Van Langenhove, G.; Seely, M.; Enzel, Y. url  doi
openurl 
  Title Flood routing and alluvial aquifer recharge along the ephemeral arid Kuiseb River, Namibia Type Journal Article
  Year 2009 Publication Journal of Hydrology Abbreviated Journal  
  Volume (down) 368 Issue 1-4 Pages 262-275  
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  Call Number THL @ christoph.kuells @ Morin2009flood Serial 26  
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Author Klaus, J.; Külls, C.; Dahan, O. url  doi
openurl 
  Title Evaluating the recharge mechanism of the Lower Kuiseb Dune area using mixing cell modeling and residence time data Type Journal Article
  Year 2008 Publication Journal of Hydrology Abbreviated Journal  
  Volume (down) 358 Issue 3-4 Pages 304-316  
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  Call Number THL @ christoph.kuells @ Klaus2008evaluating Serial 28  
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Author Klock, H.; Külls, C.; Udluft, P. openurl 
  Title Quantification of Groundwater Recharge-Estimating recharge values using hydrochemical and geological data: A case study from the semiarid Kalahari catchment of northern Namibia Type Journal Article
  Year 2001 Publication IAHS Publications-Series of Proceedings and Reports-Intern Assoc Hydrological Sciences Abbreviated Journal  
  Volume (down) 269 Issue Pages 25-32  
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  Publisher Wallingford [Oxfordshire]: IAHS, 1981- Place of Publication Editor  
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  Call Number THL @ christoph.kuells @ Klock2001 Serial 32  
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Author Külls, C.; Adar, E.M.; Udluft, P. openurl 
  Title Tracer Studies and Modelling of Regional Groundwater Systems-Resolving patterns of groundwater flow by inverse hydrochemical modelling in a semiarid Kalahari basin Type Journal Article
  Year 2000 Publication IAHS Publications-Series of Proceedings and Reports-Intern Assoc Hydrological Sciences Abbreviated Journal  
  Volume (down) 262 Issue Pages 447-452  
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  Publisher Wallingford [Oxfordshire]: IAHS, 1981- Place of Publication Editor  
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  Call Number THL @ christoph.kuells @ Kuells2006 Serial 31  
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Author Külls, C.; Leibundgut, C.; Schwarz, U.; Schick, A.P. openurl 
  Title Channel infiltration study using dye tracers Type Journal Article
  Year 1995 Publication IAHS Publications-Series of Proceedings and Reports-Intern Assoc Hydrological Sciences Abbreviated Journal  
  Volume (down) 232 Issue Pages 429-436  
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  Publisher Wallingford [Oxfordshire]: IAHS, 1981- Place of Publication Editor  
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  Call Number THL @ christoph.kuells @ Kuells1995channel Serial 36  
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Author Ola, I.; Drebenstedt, C.; Burgess, R.M.; Mensah, M.; Hoth, N.; Okoroafor, P.; Külls, C. url  doi
openurl 
  Title Assessing petroleum contamination in parts of the Niger Delta based on a sub-catchment delineated field assessment Type Journal Article
  Year 2024 Publication Environmental Monitoring and Assessment Abbreviated Journal  
  Volume (down) 196 Issue 6 Pages 585  
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  Abstract The Niger Delta in Nigeria is a complex and heavily contaminated area with over 150,000 interconnected contaminated sites. This intricate issue is compounded by the region’s strong hydrological processes and high-energy environment, necessitating a science-based approach for effective contamination assessment and management. This study introduces the concept of sub-catchment contamination assessment and management, providing an overarching perspective rather than addressing each site individually. A description of the sub-catchment delineation process using the digital elevation model data from an impacted area within the Delta is provided. Additionally, the contamination status from the delineated sub-catchment is reported. Sediment, surface water and groundwater samples from the sub-catchment were analyzed for total petroleum hydrocarbons (TPH) and polycyclic aromatic hydrocarbons (PAHs), respectively. Surface sediment TPH concentrations ranged from 129 to 20,600 mg/kg, with subsurface (2-m depth) concentrations from 15.5 to 729 mg/kg. PAHs in surface and subsurface sediment reached 9.55 mg/kg and 0.46 mg/kg, respectively. Surface water exhibited TPH concentrations from 10 to 620 mg/L, while PAHs ranged from below detection limits to 1 mg/L. Groundwater TPH concentrations spanned 3 to 473 mg/L, with total PAHs varying from below detection limits to 0.28 mg/L. These elevated TPH and PAH levels indicate extensive petroleum contamination in the investigated sediment and water environment. Along with severe impacts on large areas of mangroves and wetlands, comparison of TPH and PAH concentrations with sediment and water quality criteria found 54 to 100% of stations demonstrated exceedances, suggesting adverse biological effects on aquatic and sediment biota are likely occurring.  
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  Call Number THL @ christoph.kuells @ Ola2024 Serial 290  
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