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Sensitivity Analysis and Investigation of the Behaviour of the UTOPIA Land-Surface Process Model : A Case Study for Vineyards in Northern Italy C
| Content Provider | Semantic Scholar |
|---|---|
| Author | Confalonieri, Roberto |
| Abstract | We used sensitivity-analysis techniques to investigate the behaviour of the landsurface model UTOPIA while simulating the micrometeorology of a typical northern Italy vineyard (Vitis vinifera L.) under average climatic conditions. Sensitivity-analysis experiments were performed by sampling the vegetation parameter hyperspace using the Morris method and quantifying the parameter relevance across a wide range of soil conditions. This method was used since it proved its suitability for models with high computational time or with a large number of parameters, in a variety of studies performed on different types of biophysical models. The impact of input variability was estimated on reference model variables selected among energy (e.g. net radiation, sensible and latent heat fluxes) and hydrological (e.g. soil moisture, surface runoff, drainage) budget components. Maximum vegetation cover and maximum leaf area index were ranked as the most relevant parameters, with sensitivity indices exceeding the remaining parameters by about one order of magnitude. Soil variability had a high impact on the relevance of most of the vegetation parameters: coefficients of variation calculated on the sensitivity indices estimated for the different soils often exceeded 100 %. The only exceptions were represented by maximum vegetation cover and maximum leaf area index, which showed a low variability in sensitivity indices while changing soil type, and confirmed their key role in affecting model results. C. Francone · C. Cassardo · R. Richiardone Department of Physics, University of Turin, Via Giuria 1, 10125 Torino, Italy C. Francone (B) · R. Confalonieri Department of Plant Production, CASSANDRA, University of Milan, Via Celoria 2, 20133 Milano, Italy e-mail: caterina.francone@unimi.it C. Francone Department of Mechanical and Aerospace Engineering, Polytechnic of Turin, Corso Duca degli Abruzzi 24, Torino, Italy C. Cassardo · R. Richiardone CINFAI, National Inter/University Consortium for Physics of the Atmosphere and Hydrosphere, Turin, Italy |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://page-one.springer.com/pdf/preview/10.1007/s10546-012-9725-6 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
