Install
Weather Analytics terms
Forecast models, ensembles, radar and the rise of AI weather prediction.
Degree days A measure of how much and for how long temperature departs from a reference point, used to estimate heating and cooling demand. Ensemble forecasting Running many slightly varied forecast simulations to express weather or climate uncertainty as a range instead of one number. Numerical weather prediction (NWP) Forecasting weather by solving the physical equations governing the atmosphere on a computer, using current observations as a start. Reanalysis data A consistent, gridded historical weather record built by rerunning a modern forecast model over past observations. Sea surface temperature (SST) The temperature of ocean water at or near the surface, a core input to weather, climate and marine-ecosystem models. Urban heat island (UHI) The tendency of built-up urban areas to be significantly warmer than surrounding rural land, mainly from surfaces and structures. Weather normalization Adjusting energy usage or other weather-sensitive data to remove the effect of unusually hot, cold or wet conditions.