Hege Hisdal (Norway) 1; Wai Kwok Wong (Norway) 1
1 - the Norwegian Water Resources and energy Directorate (NVE)
The Norwegian Centre for Climate Services (NCCS), a collaboration among Norwegian research institutions and government agencies, has experienced an increased request for downscaled climate and hydrological projections. In particular, there is a need for gridded data at a high spatial and temporal resolution for climate change impact studies. NCCS provides an interactive web service for climate and hydrological data dissemination including the Norwegian Climate Data Store (NCDS). This Data Store allows users to define and select their region of interest and specify a time period. It also supports different map projections and formats for downloading. After receiving a user request, it will process and prepare the tailor-made data sets of 1 km spatial resolution and daily temporal resolution.
Climate and hydrological projections based on an ensemble of ten EURO-CORDEX regional climate model simulation runs including two emission scenarios (RCP4.5 and RCP8.5) are available. For each model and scenario, downscaled and bias-adjusted daily mean temperature and daily precipitation at a 1 km resolution for the entire mainland Norway for the period 1971–2100 were derived. These climate data sets were used as forcing data for a spatially distributed, gridded conceptual precipitation-runoff model (the HBV-model) to provide daily time series of various hydrological variables such as runoff, soil moisture deficit, snow water equivalent and groundwater. These high-resolution climate and hydrological projections, despite their limitations, represent a valuable data source for different types of impact studies at a national and local scale.