The implication of input data aggregation on up-scaling soil organic carbon changes. Grosz, B., Dechow, R., Gebbert, S., Hoffmann, H., Zhao, G., Constantin, J., Raynal, H., Wallach, D., Coucheney, E., Lewan, E., Eckersten, H., Specka, X., Kersebaum, K., Nendel, C., Kuhnert, M., Yeluripati, J., Haas, E., Teixeira, E., Bindi, M., Trombi, G., Moriondo, M., Doro, L., Roggero, P., Zhao, Z., Wang, E., Tao, F., Roetter, R., Kassie, B., Cammarano, D., Asseng, S., Weihermueller, L., Siebert, S., Gaiser, T., & Ewert, F. Environmental Modelling & Software, 96:361–377, 2017. MACSUR or FACCE acknowledged.
doi  abstract   bibtex   
In up-scaling studies, model input data aggregation is a common method to cope with deficient data availability and limit the computational effort. We analyzed model errors due to soil data aggregation for modeled SOC trends. For a region in North West Germany, gridded soil data of spatial resolutions between 1 km and 100 km has been derived by majority selection. This data was used to simulate changes in SOC for a period of 30 years by 7 biogeochemical models. Soil data aggregation strongly affected modeled SOC trends. Prediction errors of simulated SOC changes decreased with increasing spatial resolution of model output. Output data aggregation only marginally reduced differences of model outputs between models indicating that errors caused by deficient model structure are likely to persist even if requirements on the spatial resolution of model outputs are low. (C)2017 Elsevier Ltd. All rights reserved.
@Article {Grosz2017b,
author = {Grosz, B. and Dechow, R. and Gebbert, S. and Hoffmann, H. and Zhao, G. and Constantin, J. and Raynal, H. and Wallach, D. and Coucheney, E. and Lewan, E. and Eckersten, H. and Specka, X. and Kersebaum, K.-C. and Nendel, C. and Kuhnert, M. and Yeluripati, J. and Haas, E. and Teixeira, E. and Bindi, M. and Trombi, G. and Moriondo, M. and Doro, L. and Roggero, P.P. and Zhao, Z. and Wang, E. and Tao, F. and Roetter, R. and Kassie, B. and Cammarano, D. and Asseng, S. and Weihermueller, L. and Siebert, S. and Gaiser, T. and Ewert, F.}, 
title = {The implication of input data aggregation on up-scaling soil organic carbon changes}, 
journal = {Environmental Modelling \& Software}, 
volume = {96}, 
pages = {361--377}, 
year = {2017}, 
doi = {10.1016/j.envsoft.2017.06.046}, 
abstract = {In up-scaling studies, model input data aggregation is a common method to cope with deficient data availability and limit the computational effort. We analyzed model errors due to soil data aggregation for modeled SOC trends. For a region in North West Germany, gridded soil data of spatial resolutions between 1 km and 100 km has been derived by majority selection. This data was used to simulate changes in SOC for a period of 30 years by 7 biogeochemical models. Soil data aggregation strongly affected modeled SOC trends. Prediction errors of simulated SOC changes decreased with increasing spatial resolution of model output. Output data aggregation only marginally reduced differences of model outputs between models indicating that errors caused by deficient model structure are likely to persist even if requirements on the spatial resolution of model outputs are low. (C)2017 Elsevier Ltd. All rights reserved.}, 
note = { MACSUR or FACCE acknowledged.}, 
keywords = {Biogeochemical model; Data aggregation; Up-scaling error; Soil organic carbon; DIFFERENT SPATIAL SCALES; NITROUS-OXIDE EMISSIONS; MODELING SYSTEM; DATA; RESOLUTION; CROP MODELS; CLIMATE; LONG; PRODUCTIVITY; CROPLANDS; DAYCENT}, 
type = {CropM}}

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