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Q&A about the Data Shop
What are “Ready to use" City climate projections ?
City Data Package Description It is a data package of 1 weather variable or 40 indicators with time series of monthly or daily values from 1951 to 2100, as simulated by 17 to 21 models (according to the variable) under 2 greenhouse gases emission scenarios (RCP4.5 and RCP8.5). Data are time series from a single site, corresponding to the center of a model grid box of 0.25°x 0.25° (about 25km x 25km). They are "Ready to use" because they are suitable for direct use in climate change impact s
Which climate variables do your provide ?
5 Surface climate variables We provide 5 surface climate variables that correspond to specific model variables as listed below: Temperature Temperature corresponds to model daily values of near-surface (2 meters height) mean air temperature expressed in °C. Maximum temperature Maximum temperature corresponds to model daily maximum of near-surface (2 meters height) air temperature expressed in °C. Minimum temperature Minimum temperature corresponds to the model da
Do you provide historical observations?
Reanalysis data as observations The historical data we provide are reanalysis, but practitioners often refer to them as “observations” and use them for the same purposes as observations from weather stations. In locations where observations are scarse, reanalysis are one of the solutions that provides past conditions over long time periods. _Reanalysis is a scientific method for developing a comprehensive record of how weather and climate are changing over time. In it, observations and a num
What's your original data source ?
Data Sourcing The original model data we process come from research organisations around the world that run Earth System Models to simulate future world climate under different greenhouse gas scenarios. These data are accessible to everyone through a peta-scale distributed database called the Earth System Grid System Federation or ESGF or for a subset through Copernicus Climate Change Service or C3S. You can also check the list