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Author Eliades, M.; Bruggeman, A.; Djuma, H.; Christofi, C.; Kuells, C. url  doi
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  Title Quantifying Evapotranspiration and Drainage Losses in a Semi-Arid Nectarine (Prunus persica var. nucipersica) Field with a Dynamic Crop Coefficient (Kc) Derived from Leaf Area Index Measurements Type Journal Article
  Year 2022 Publication Water Abbreviated Journal  
  Volume (down) 14 Issue 5 Pages  
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  Abstract Quantifying evapotranspiration and drainage losses is essential for improving irrigation efficiency. The FAO-56 is the most popular method for computing crop evapotranspiration. There is, however, a need for locally derived crop coefficients (Kc) with a high temporal resolution to reduce errors in the water balance. The aim of this paper is to introduce a dynamic Kc approach, based on Leaf Area Index (LAI) observations, for improving water balance computations. Soil moisture and meteorological data were collected in a terraced nectarine (Prunus persica var. nucipersica) orchard in Cyprus, from 22 March 2019 to 18 November 2021. The Kc was derived as a function of the canopy cover fraction (c), from biweekly in situ LAI measurements. The use of a dynamic Kc resulted in Kc estimates with a bias of 17 mm and a mean absolute error of 0.8 mm. Evapotranspiration (ET) ranged from 41% of the rainfall (P) and irrigation (I) in the wet year (2019) to 57% of P + I in the dry year (2021). Drainage losses from irrigation (DR_I) were 44% of the total irrigation. The irrigation efficiency in the nectarine field could be improved by reducing irrigation amounts and increasing the irrigation frequency. Future studies should focus on improving the dynamic Kc approach by linking LAI field observations with remote sensing observations and by adding ground cover observations.  
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  ISSN 2073-4441 ISBN Medium  
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  Call Number THL @ christoph.kuells @ w14050734 Serial 85  
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Author Adolph, G.; KÜlls, C.; Willscheid, A. openurl 
  Title Determination and validation of age structures as an improved measure of hydrological dynamics Type Conference Article
  Year 2007 Publication Geophysical Research Abstracts Abbreviated Journal  
  Volume (down) 9 Issue 08013 Pages  
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  Call Number THL @ christoph.kuells @ Adolph2007determination Serial 58  
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Author Joseph, J.; Külls, C.; Arend, M.; Schaub, M.; Hagedorn, F.; Gessler, A.; Weiler, M. doi  openurl
  Title Application of a laser-based spectrometer for continuous in situ measurements of stable isotopes of soil CO2 in calcareous and acidic soils Type Journal Article
  Year 2019 Publication Soil Abbreviated Journal  
  Volume (down) 5 Issue 1 Pages 49-62  
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  Publisher Copernicus Place of Publication Editor  
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  Call Number THL @ christoph.kuells @ Joseph2019application Serial 15  
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Author Ardelt, G.; Külls, C.; Hellbrück, H. url  openurl
  Title Towards intrinsic molecular communication using isotopic isomerism Type Journal Article
  Year 2018 Publication Open Journal of Internet Of Things (OJIOT) Abbreviated Journal  
  Volume (down) 4 Issue 1 Pages 135-143  
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  Publisher RonPub Place of Publication Editor  
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  Call Number THL @ christoph.kuells @ Ardelt2018towards Serial 18  
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Author Androvitsanea, A.; Fawzy, M.; Fuchs, J.; Külls, C.; Fahlbusch, H.; Heiden, J. openurl 
  Title Hydrologische Bedingungen im Heraion von Samos vom 12. bis 8. Jh. v. Chr. und ihre Bedeutung für die wasserbauliche Infrastruktur Type Journal Article
  Year 2018 Publication Environmental Water Engineering Abbreviated Journal  
  Volume (down) 1 Issue 1 Pages 1-21  
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  Call Number THL @ christoph.kuells @ Androvitsanea2018hydrologische Serial 17  
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Author Krüger, N.; Külls, C.; Bruggeman, A.; Eliades, M.; Christophi, C.; Rigas, M.; Eracleous, T. openurl 
  Title Groundwater recharge estimates with soil isotope profiles-is there a bias on coarse-grained hillslopes? Type Conference Article
  Year 2020 Publication EGU General Assembly Conference Abstracts Abbreviated Journal  
  Volume (down) Issue Pages 9840  
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  Call Number THL @ christoph.kuells @ Krueger2020groundwater Serial 42  
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Author Doulgeris, C.; Tziritis, E.; Pisinaras, V.; Panagopoulos, A.; Külls, C. openurl 
  Title Prediction of seawater intrusion to coastal aquifers based on non-dimensional diagrams Type Conference Article
  Year 2020 Publication EGU Geophysical Abstracts Abbreviated Journal  
  Volume (down) Issue Pages 4073  
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  Call Number THL @ christoph.kuells @ Doulgeris2020prediction Serial 41  
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Author Leibundgut, C.; Maloszewski, P.; Külls, C. url  doi
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  Title Tracers in Hydrology Type Book Whole
  Year 2009 Publication Abbreviated Journal  
  Volume (down) Issue 1. Ed. Pages  
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  Publisher John Wiley & Sons, Ltd Place of Publication Editor  
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  Call Number THL @ christoph.kuells @ Leibundgut2009tracers Serial 37  
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Author Külls, C. pdf  url
openurl 
  Title Groundwater of the North-Western Kalahari, Namibia: estimation of recharge and quantification of the flow system Type Book Whole
  Year 2001 Publication Hydrogeologie und Umwelt Abbreviated Journal  
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  Corporate Author Thesis Doctoral thesis  
  Publisher Hydrogeologie und Umwelt Place of Publication Editor  
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  Call Number THL @ christoph.kuells @ Kuells2003groundwater Serial 38  
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Author Döll, P.; Krol, M.; Fuhr, D.; Gaiser, T.; Herfort, J.; Höynck, S.; Jaeger, A.; Külls, C.; Mendiondo, E.M.; Printz, A.; others url  openurl
  Title Integrated scenarios of regional development in Ceará and Piauí Type Book Chapter
  Year 2003 Publication Global Change and Regional Impacts Abbreviated Journal  
  Volume (down) Issue Pages 19-41  
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  Publisher Springer, Berlin, Heidelberg Place of Publication Editor  
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  Call Number THL @ christoph.kuells @ Doll2003integrated Serial 39  
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