TY - CHAP A1 - He, Qianwen A1 - Molkenthin, Frank A1 - Wendland, Frank A1 - Herrmann, Frank T1 - Evaluation of different interpolation schemes for precipitation and reference evapotranspiration and the impact on simulated large-scale water balance in Slovenia T2 - European Geosciences Union, General Assembly 2016, Vienna, Austria N2 - Precipitation and reference evapotranspiration (ET0) are two main climate input components for hydrological models, which are often recorded or calculated based on measuring stations. Interpolation schemes are implemented to regionalize data from measuring stations for distributed hydrological models. This study had been conducted for 5 months, with the aim of: (1) evaluating three interpolation schemes for precipitation and reference evapotranspiration (ET0); (2) assessing the impact of the interpolation schemes on actual evapotranspiration and total runoff simulated by a distributed large-scale water balance model - mGROWA. The study case was the Republic of Slovenia, including a high variability in topography and climatic conditions, with daily meteorological data measured in 20 stations for a period of 44 years. ET0 were computed by both FAO Penman-Monteith equation and Hargreaves equation. The former equation is recommended as the standard equation, while the ET0 calculated by the latter one for Slovenia had a certain deviation (+150 mm/a) from it. Ordinary Kriging, Regression Kriging and Linear Regression were selected to regionalize precipitation and ET0. Reliability of the three interpolation schemes had been assessed based on the residual obtained from cross-validation. Monthly regionalized precipitation and ET0 were subsequently used as climate input for mGROWA model simulation. Evaluation of the interpolation schemes showed that the application of Regression Kriging and Linear Regression led to an acceptable interpolation result for reference evapotranspiration, especially in case the FAO Penman-Monteith equation was used. On the other hand, Regression Kriging also provided a more convincing interpolated result for precipitation. Meanwhile, mGROWA simulation results were affected by climate input data sets generated by applying difference interpolation schemes. Therefore, it is essential to select an appropriate interpolation scheme, in order to generate a convincing climate input. Y1 - 2016 UR - http://meetingorganizer.copernicus.org/EGU2016/EGU2016-8570.pdf N1 - EGU2016-8570 PB - European Geophysical Society CY - Katlenburg-Lindau ER - TY - CHAP A1 - Schley, Frank A1 - Molkenthin, Frank A1 - Mejstrik, M. T1 - Netzbasiertes Kollaborationsmodell im Spezialtiefbau - Virtuelle Baubude - T2 - Junge Wissenschaftler forschen, 13. Forum Bauinformatik, München 2001 Y1 - 2001 SN - 3-18-316904-5 SP - 70 EP - 77 PB - VDI-Verlag CY - Düsseldorf ER - TY - GEN A1 - He, Qianwen A1 - Wendland, Frank A1 - Molkenthin, Frank T1 - The analysis of nitrogen load and simulation uncertainty using SWAT in a catchment with paddy field in China T2 - Water Science & Technology Journal KW - critical source areas KW - hydrological model KW - nitrogen load KW - nitrogen source apportionment KW - SWAT KW - uncertainty analysis Y1 - 2019 U6 - https://doi.org/10.2166/wst.2019.326 SN - 0273-1223 SN - 1996-9732 VL - 80 IS - 4 SP - 806 EP - 816 ER - TY - THES A1 - Molkenthin, Frank T1 - WWW based Hydroinformatics Systems Y1 - 2001 SN - 3-934934-04-8 PB - BTU, Inst. für Bauinformatik CY - Cottbus ER - TY - JOUR A1 - Molkenthin, Frank A1 - Belleudy, Ph. A1 - Holz, Klaus-Peter A1 - Jozsa, J. A1 - Price, R. A1 - Veer, P. van der T1 - Hydro-Web "WWW based Collaborative Engineering in Hydroscience" - a European Education Experiment in the Internet JF - Journal of Hydroinformatics Y1 - 2001 SN - 1464-7141 VL - 3 IS - 4 SP - 239 EP - 243 ER - TY - JOUR A1 - Molkenthin, Frank A1 - Liang, Shin-Jye T1 - A Virtual GIS-based Hydrodynamic Model System for Tamshui River JF - Journal of Hydroinformatics Y1 - 2001 SN - 1464-7141 VL - 3 IS - 4 SP - 195 EP - 202 ER - TY - CHAP A1 - Holz, Klaus-Peter A1 - Hildebrandt, Gerald A1 - Molkenthin, Frank ED - Gnauck, Albrecht T1 - Virtual Laboratories for Projects in Environment Water T2 - The information society and enlargement of the European Union, 17th International Conference Informatics for Environment Protection, Cottbus 2003 N2 - Modern information and communication technology (ICT) enables new technical solutions to support collaboration in environmental engineering over distance. The establishment of "virtual laboratories" including application of Internet based project platforms, distributed team work and collaboration methods require new kinds of soft skills, knowledge and experience and a new "technological culture" to be generated just by doing - a task for education, training and profession in Hydro-Informatics. This is a challenge for the European dimension, where in future experts and engineers from different countries with different languages, different mentalities as well as different specialization and professional experience have to collaborate in research, teaching and practice. Training of collaborating in such new environment is the challenge of the courses HydroWeb and HydroEurope which by collaboration of 23 universities world-wide will help to establish common high quality university teaching courses and establish links between students from the involved countries. The students are solving a given environmental engineering task in distributed teams in the Internet. The students acquired in this course experience in interdisciplinary team work, net based project co-ordination and Web based reporting. They strengthened their social competence to collaborate in heterogeneous teams with members of different habits, nationalities, ages, educational backgrounds. The described experiment might be the basis to introduce Web based collaborative engineering in the regular course programme of water-environment related curricula at universities. Y1 - 2003 SN - 3-89518-440-3 PB - Metropolis-Verlag CY - Marburg ER - TY - JOUR A1 - Holz, Klaus-Peter A1 - Hildebrandt, Gerald A1 - Molkenthin, Frank T1 - Virtual Laboratories for Projects in Environment Water JF - Forum der Forschung N2 - Modern information and communication technology (ICT) enables new technical solutions to support collaboration in environmental engineering over distance. The establishment of "virtual laboratories" including application of Internet based project platforms, distributed team work and collaboration methods require new kinds of soft skills, knowledge and experience and a new "technological culture" to be generated just by doing - a task for education, training and profession in Hydro-Informatics. This is a challenge for the European dimension, where in future experts and engineers from different countries with different languages, different mentalities as well as different specialization and professional experience have to collaborate in research, teaching and practice. Training of collaborating in such new environment is the challenge of the courses HydroWeb and HydroEurope which by collaboration of 23 universities world-wide will help to establish common high quality university teaching courses and establish links between students from the involved countries. The students are solving a given environmental engineering task in distributed teams in the Internet. The students acquired in this course experience in interdisciplinary team work, net based project co-ordination and Web based reporting. They strengthened their social competence to collaborate in heterogeneous teams with members of different habits, nationalities, ages, educational backgrounds. The described experiment might be the basis to introduce Web based collaborative engineering in the regular course programme of water-environment related curricula at universities. Y1 - 2003 SN - 0947-6989 VL - 16 IS - 7 SP - 94 EP - 97 ER - TY - JOUR A1 - Molkenthin, Frank A1 - Holz, Klaus-Peter A1 - Brüggemann, Bernhard Markus A1 - Belleudy, Ph. A1 - Josza, J. A1 - Price, R. A1 - Veer, P. van der T1 - HydroWeb: 'WWW based collaborative engineering in hydroscience' - a European education experiment in the Internet JF - Forum der Forschung Y1 - 2001 VL - 6 IS - 13 SP - 12 EP - 16 ER - TY - CHAP A1 - Molkenthin, Frank A1 - Holz, Klaus-Peter ED - Jun, Byong-Ho T1 - Generalised Information Systems for Physical State Variables in Hydroscience T2 - Water engineering for the future, Vol. 1., Abstracts of XXXI IAHR Congress, Coex, Seoul, September 11 - 16, 2005 Y1 - 2005 SN - 89-87898-25-3 SP - S. 107 PB - Korea Water Resources Association CY - Seoul ER -