| Records |
| Author |
Zagana, E.; Külls, C.; Udluft, P.; Constantinou, C. |
| Title |
Methods of groundwater recharge estimation in eastern Mediterranean water balance model application in Greece, Cyprus and Jordan |
Type |
Journal Article |
| Year |
2007 |
Publication |
Hydrological Processes: An International Journal |
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| Volume |
21 |
Issue |
18 |
Pages |
2405-2414 |
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John Wiley & Sons, Ltd. Chichester, UK |
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THL @ christoph.kuells @ Zagana2007methods |
Serial |
30 |
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| Author |
Zagana, E.; Obeidat, M.; Külls, C.; Udluft, P. |
| Title |
Chloride, hydrochemical and isotope methods of groundwater recharge estimation in eastern Mediterranean areas: a case study in Jordan |
Type |
Journal Article |
| Year |
2007 |
Publication |
Hydrological Processes: An International Journal |
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| Volume |
21 |
Issue |
16 |
Pages |
2112-2123 |
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John Wiley & Sons, Ltd. Chichester, UK |
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THL @ christoph.kuells @ Zagana2007chloride |
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29 |
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Zagana, E.; Külls, C.; Udluft, P. |
| Title |
Der Wasserhaushalt des Aliakmonas |
Type |
Journal Article |
| Year |
2000 |
Publication |
Vom Wasser |
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| Volume |
94 |
Issue |
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Pages |
29-39 |
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THL @ christoph.kuells @ Zagana2000saa |
Serial |
34 |
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| Author |
Eliades, M.; Bruggeman, A.; Djuma, H.; Christofi, C.; Kuells, C. |
| 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 |
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| Volume |
14 |
Issue |
5 |
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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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2073-4441 |
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no |
| Call Number |
THL @ christoph.kuells @ w14050734 |
Serial |
81 |
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| Author |
Eliades, M.; Bruggeman, A.; Djuma, H.; Christofi, C.; Kuells, C. |
| 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 |
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| Volume |
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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2073-4441 |
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no |
| Call Number |
THL @ christoph.kuells @ w14050734 |
Serial |
85 |
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| Author |
Voerkelius, S.; Külls, C.; Santiago, M.M.F.; Frischkorn, H.; dos Santos Semrau, L.A.; Heinrichs, G.; Gil, M.M.L. |
| Title |
Investigations on water management and water quality in Picos/PI and Tauá/CE |
Type |
Book Chapter |
| Year |
2003 |
Publication |
Global change and regional impacts |
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173-184 |
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Springer, Berlin, Heidelberg |
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THL @ christoph.kuells @ Voerkelius2003investigations |
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40 |
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| Author |
Udluft, P.; Dünkeloh, A.; Mederer, J.; Külls, C.; Schaller, J. |
| Title |
Re-evaluation of the groundwater resources of Cyprus |
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Report |
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2006 |
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Lefkosia |
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THL @ christoph.kuells @ Udluft2006re |
Serial |
66 |
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| Author |
Udluft, P.; Külls, C. |
| Title |
Mapping the availability and dynamics of groundwater recharge. Part 1: modelling techniques |
Type |
Conference Article |
| Year |
2000 |
Publication |
Proceedings of the Third Congress on Regional Geological Cartography and Information Systems |
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337-340 |
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THL @ christoph.kuells @ Udluft2000mapping |
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64 |
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Tziritis, E.; Aschonitis, V.; Balacco, G.; Daras, P.; Doulgeris, C.; Fidelibus, M.D.; Gaubi, E.; Gueddari, M.; Güler, C.; Hamzaoui, F.; others |
| Title |
MEDSAL Project-Salinization of critical groundwater reserves in coastal Mediterranean areas: Identification, risk assessment and sustainable management with the use of integrated modelling and smart ICT tools |
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Conference Article |
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2020 |
Publication |
EGU General Assembly Conference Abstracts |
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2326 |
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THL @ christoph.kuells @ Tziritis2020medsal |
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43 |
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Tröger, U.; Dias, C.L.; Guillaumon, J.R.; Iritani, M.A.; Külls, C.; Schuler, G. |
| Title |
Remarks and new data about the recharge of the Guarani Aquifer System |
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Conference Article |
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2004 |
Publication |
XXXIII IAH Congress, Abstracts, IAH, Mexico |
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THL @ christoph.kuells @ Troeger2004remarks |
Serial |
59 |
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