Journal Article

FZJ-2017-05895

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The implication of input data aggregation on up-scaling soil organic carbon changes

Grosz, B. (Corresponding author) ; Dechow, R. ; Gebbert, S. ; Hoffmann, H. ; Zhao, G. ; Constantin, J. ; Raynal, H. ; Wallach, D. ; Coucheney, E. ; Lewan, E. ; Eckersten, H. ; Specka, X. ; Kersebaum, K.-C. ; Nendel, C. ; Kuhnert, M. ; Yeluripati, J. ; Haas, E. ; Teixeira, E. ; Bindi, M. ; Trombi, G. ; Moriondo, M. ; Doro, L. ; Roggero, P. P. ; Zhao, Z. ; Wang, E. ; Tao, F. ; Rötter, R. ; Kassie, B. ; Cammarano, D. ; Asseng, S. ; Weihermüller, L.FZJ* ; Siebert, S. ; Gaiser, T. ; Ewert, F.

2017
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: 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.

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Contributing Institute(s):

1. Agrosphäre (IBG-3)

Research Program(s):

1. 255 - Terrestrial Systems: From Observation to Prediction (POF3-255) (POF3-255)
2. MACSUR - Modelling European Agriculture with Climate Change for Food Security (2812-ERA-158) (2812-ERA-158)

Appears in the scientific report 2017

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Database coverage:
; Current Contents - Agriculture, Biology and Environmental Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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