XEMA provides information on the identification, location and status of the network of Automatic Meteorological Stations, owned by the Meteorological Service of Catalonia. On the occasion of the entry into force of Law 15/2001, of 14 November, the XEMA was created by grouping the stations of three different networks: the Network of Automatic Meteorological Stations (XMET) of the Meteorological Service of the Directorate General of Environmental Quality of the Department of the Environment, the Agrometeorological Network of Catalonia (XAC) of the Department of Agriculture, Livestock and Fisheries and the Snow-related Network of Catalonia (XANIC) of the Cartographic Institute of Catalonia. The EMAs are equipped with sensors that provide information on weather variables that allow to know the weather situation in real time and improve the country's climate knowledge (temperature, relative humidity, wind speed and direction, global solar irradiance, precipitation and atmospheric pressure). It is a 2D vectorial set of geographic information at 1:5.000 scale.