Search Results - "Wegehenkel, M"

Analysis and classification of data sets for calibration and validation of agro-ecosystem models by Kersebaum, K C, Boote, K J, Jorgenson, J S, Nendel, C, Bindi, M, Fruehauf, C, Gaiser, T, Hoogenboom, G, Kollas, C, Olesen, JE, Rotter, R P, Ruget, F, Thorburn, P J, Trnka, M, Wegehenkel, M

“…Experimental field data are used at different levels of complexity to calibrate, validate and improve agro-ecosystem models to enhance their reliability for…”
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The MONICA model: Testing predictability for crop growth, soil moisture and nitrogen dynamics by Nendel, C., Berg, M., Kersebaum, K.C., Mirschel, W., Specka, X., Wegehenkel, M., Wenkel, K.O., Wieland, R.

“…► A thoroughly revised and extended version of the long-known HERMES model is presented under the name MONICA. ► MONICA is calibrated for a range of important…”
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Long-term analysis of measured and simulated evapotranspiration and soil water content by Wegehenkel, M., Rummel, U., Beyrich, F.

“…In our study, we analysed a period from 2003 to 2012 with micrometeorological data measured at a boundary-layer field site operated by the Lindenberg…”
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Modelling hourly evapotranspiration and soil water content at the grass-covered boundary-layer field site Falkenberg, Germany by Wegehenkel, M, Beyrich, F

“…The study analyses a 2-year period of hourly rates of real evapotranspiration (ETr) derived from eddy covariance measurements and soil water contents at depths…”
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Modeling of vegetation dynamics in hydrological models for the assessment of the effects of climate change on evapotranspiration and groundwater recharge by Wegehenkel, M

“…Vegetation affects water balance of the land surface by e.g. storage of precipitation water in the canopy and soil water extraction by transpiration…”
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Evaluation of three different regional climate change scenarios for the application of a water balance model in a mesoscale catchment in Northeast Germany by Wegehenkel, M, Heinrich, U, Jochheim, H, Kersebaum, K. C, Röber, B

“…Future climate changes might have some impacts on catchment hydrology. An assessment of such impacts on e.g. ground water recharge is required to derive…”
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The impact of different spatial land cover data sets on the outputs of a hydrological model – a modelling exercise in the Ucker catchment, North-East Germany by Wegehenkel, M., Heinrich, U., Uhlemann, St, Dunger, V., Matschullat, J.

“…The spatial distribution of forests, meadows, arable land, water bodies and settlements in a catchment influences the spatial and temporal dynamics of…”
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Operational use of agro-meteorological data and GIS to derive site specific nitrogen fertilizer recommendations based on the simulation of soil and crop growth processes by Kersebaum, K.C., Lorenz, K., Reuter, H.I., Schwarz, J., Wegehenkel, M., Wendroth, O.

“…The spatial and temporal coincidence of nutrient supply and the demand of the crops is especially important for nitrogen to prevent ground water contamination…”
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Validation of a soil water balance model using soil water content and pressure head data by Wegehenkel, Martin

“…The validation of soil water balance models and the evaluation of the quality of the model predictions at field‐scale require time‐series of in situ measured…”
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Test of a modelling system for simulating water balances and plant growth using various different complex approaches by Wegehenkel, Martin

“…In this paper, a modelling system that integrates various complex model components for the purposes of water balance modelling and crop growth simulation is…”
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Estimating of the impact of land use changes using the conceptual hydrological model THESEUS––a case study by Wegehenkel, Martin

“…As a result of a new agricultural funding policy established in 1992 by the European Community, it was assumed that up to 15–20% of arable land would have been…”
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Crop growth, soil water and nitrogen balance simulation on three experimental field plots using the OPUS model : A case study by WEGEHENKEL, Martin, MIRSCHEL, Wilfried

“…Over a period of 5 years, the agro-ecosystem model Opus was used to simulate soil water and nitrogen balance as well as crop growth for three experimental…”
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Longterm evaluation of land use changes on catchment water balance––a case study from North-East Germany by Wegehenkel, Martin

“…In this paper, the longterm effects of an afforestation scenario on catchment water balance are analyzed taking into account the results of a regional case…”
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Comparison of real evapotranspiration measured by weighing lysimeters with simulations based on the Penman formula and a crop growth model by Wegehenkel, Martin, Gerke, Horst H

“…Although the quantification of real evapotranspiration (ETr) is a prerequisite for an appropriate estimation of the water balance, precision and uncertainty of…”
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The application of simple methods using remote sensing data for the regional validation of a semidistributed hydrological catchment model by Wegehenkel, Martin, Jochheim, Hubert, Kersebaum, Kurt Christian

“…Simulation runs of a semidistributed hydrological conceptual catchment model were performed using a spatial data set from a mesoscale catchment located at the…”
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The validation of a modelling system for calculating water balance and catchment discharge using simple techniques based on field data and remote sensing data by Wegehenkel, Martin, Kersebaum, Kurt Christian

“…In a regional case study, simulation runs of a simple hydrological conceptual catchment model were performed using a spatial data set, which covers a mesoscale…”
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Predictions of soil water and crop growth dynamics using the agroecosystem models THESEUS and OPUS by Wegehenkel, Martin, Mirschel, Wilfried, Wenkel, Karl-Otto

“…The agroecosystem models THESEUS and OPUS were tested with data obtained from three agricultural experimental field plots on sandy soils without groundwater…”
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Simulation of the water and nitrogen balances of forests within a catchment in the northeastern German lowlands by Wegehenkel, Martin, Jochheim, Hubert, L ttschwager, Dietmar

“…The simulation model FOREST-BGC was used to calculate the regional water and nitrogen balances of coniferous and deciduous forests within the Stöbber catchment…”
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12 super(th) workshop on large scale hydrological modelling by Schmalz, B, Fohrer, N, Hagemann, S, Doell, P, Kiesel, J, Marx, A, Reichenau, T G, Volkholz, J, Wegehenkel, M

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Wirkung von Böden und Fruchtarten auf die Grundwasserneubildung pleistozäner Ackerstandorte Ostbrandenburgs by Schindler, U., Wegehenkel, M., Müller, L., Eulenstein, F.

“…Für grundwasserferne Böden Ostbrandenburgs wurde für unterschiedliche Fruchtarten und Fruchtfolgen die Sickerwasserbildung für die Jahre 1992-1995 berechnet…”
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