Author:
Anghileri D.,Pianosi F.,Soncini-Sessa R.
Abstract
Abstract. While quantitative assessment of the climate change impact on hydrology at the basin scale is quite addressed in the literature, extension of quantitative analysis to impact on the ecological, economic and social sphere is still limited, although well recognized as a key issue to support water resource planning and promote public participation. In this paper we propose a framework for assessing climate change impact on water-related activities at the basin scale. The peculiarities of our approach are that: (i) the impact quantification is based on a set of performance indicators defined together with the stakeholders, thus explicitly taking into account the water-users preferences; (ii) the management policies are obtained by optimal control techniques, linking stakeholder expectations and decision-making; (iii) the multi-objective nature of the management problem is fully preserved by simulating a set of Pareto-optimal management policies, which allows for evaluating not only variations in the indicator values but also tradeoffs among conflicting objectives. The framework is demonstrated by application to a real world case study, Lake Como basin (Italy). We show that the most conflicting water-related activities within the basin (i.e. hydropower production and agriculture) are likely to be negatively impacted by climate change. An uncertainty analysis is performed in order to assess how the climate natural variability and approximations in modeling the physical system (climate and hydrology) and the socio-economic system (management policy) affect the robustness of the estimated impacts. We demonstrate that the contribution of natural climate uncertainty is rather significant and that, among different modelling uncertainty sources, the one from climate modeling is very significant.
Reference35 articles.
1. Abbaspour, K. C., Faramarzi, M., Ghasemi, S. S., and Yang, H.: Assessing the impact of climate change on water resources in Iran, Water Resour. Res., 45, W10434, https://doi.org/10.1029/2008WR007615, 2009.
2. Ajami, N. K., Hornberger, G. M., and Sunding, D. L.: Sustainable water resource management under hydrological uncertainty, Water Resour. Res., 44, W11406, https://doi.org/10.1029/2007WR006736, 2008.
3. Anghileri, D., Soncini-Sessa, R., and Weber, E.: Joint management of irrigation and hydropower production as a way to solve conflicts in the Lake Como system, Environ. Modell. Softw., submitted, 2011.
4. Arnell, N. W.: Relative effects of multi-decadal climatic variability and changes in the mean and variability of climate due to global warming: future streamflows in Britain, J. Hydrol., 270, 195–213, https://doi.org/10.1016/S0022-1694(02)00288-3, 2003.
5. Arnell, N. W.: Climate change and global water resources: SRES emissions and socio-economic scenarios, Global Environ. Chang. 14, 31–52, https://doi.org/10.1016/j.gloenvcha.2003.10.006, 2004.
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献