Aeolus’s telescope requires periodic collimation and refocussing. To this end, the Instrument Telescope Refocussing activity aims to improve the radiometric performance of the Atmospheric Laser Doppler Instrument (ALADIN)’s telescope by optimizing the throughput at the field stop, the smallest aperture where the return light has to pass. This is done through a change of the temperature settings on the telescope.
Strateole-2 is a French-US project supported by ESA that uses CNES superpressure balloons drifting around the globe to study the climate processes in the Tropical Tropopause Layer (TTL) and the lower stratosphere, helping Aeolus validation activities along the way.
While news of COVID-19 dominates headlines and many of us practice social distancing, there still remains the need for action on climate change - and satellites are vital in providing the key facts on this global issue.
DIMAP is a public-domain format for describing geographic data. It is designed chiefly for raster imagery, but it also supports vector data. DIMAP was developed in partnership with CNES, the French space agency. DIMAP is a two-part format comprising image data and metadata.