MIRAVI: the Earth live   Ozone forecasts       Responding to the growing demand for ozone data to monitor the ozone layer and improve ultraviolet (UV) radiation forecasts, the GOME instrument aboard ERS-2 has been working since 1997 in near-real time, providing data on ozone levels, coverage of other trace gases, UV and air-pollution monitoring.   Utilising data from Envisat’s Advanced Along Track Scanning Radiometer (AATSR) instrument, as well as other instruments aboard different satellites, ESA provides daily sea surface temperature maps of the European seas in near-real time as part of the agency’s Medspiration project.   Hot spots across Southeastern Europe from 21 to 26 August 2007 have been detected with instruments aboard ESA satellites, which have been continuously surveying fires burning across the Earth’s surface for a decade. Working like thermometers in the sky, the Along Track Scanning Radiometer (ATSR) on ESA’s ERS-2 satellite and the Advanced Along Track Scanning Radiometer (AATSR) on ESA’s Envisat satellite measure thermal infrared radiation to take the temperature of Earth's land surfaces.   Swell systems in Near Real Time from 18-25 January 2008 across the Pacific Ocean as observed by Envisat’s ASAR Wave Mode. Colour indicates wavelength, with red being the longest.