National hydrological and water resource impacts of climate change
Project Duration: 1 July 2017 – 30 June 2019
Project Budget: $ 400,000
This century, climate change is projected to alter New Zealand’s hydrological cycle in complex ways, inducing shifts in snow, ice and soil water stores, as well as evaporative, river and groundwater flows. These impacts will have implications for a wide variety of freshwater uses and hazards central to the country’s environmental, economic, social and cultural well-being. In order to provide the foundation for comprehensive analyses of these impacts and implications, this project will carry out a national study of the potential effects of climate change on the entire hydrological cycle is needed. CMIP5-based climate change projections will be used to drive physically based hydrological modelling from 1971 to 2100. Hydrological states and fluxes will be analysed for changes in their temporal and spatial statistics and interpreted in the context of the changing climate, including the time of emergence of the climate change signal. The implications of these changes will be further assessed in terms of the major water resource issues of agricultural water resources, hydropower potential, and flooding. In order to provide the necessary tools for managing floods in the changing climate, a method for non-stationary flood frequency analysis will be developed for New Zealand.
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In the second of the Deep South Challenge seminar series, Jonny will introduce us to climate and earth system modelling, show how the NZESM fits within the Deep South Challenge and discuss how the NZESM contributes to understanding our climate future.
The Deep South Challenge is proud to be supporting the new Aotearoa New Zealand Science Journalism Fund - the first independent journalism fund dedicated to furthering coverage of the science-related issues that impact New Zealanders.
Includes funding for projects and advice related to climate change impacts and opportunities.