The CNES campaign are part of the infrastructure project Hemera, within the European program Horizon 2020. The project is coordinated by the French space agency CNES.
A total of four flights were operated on the Esrange by CNES during August, starting on 13 August. On board the stratospheric balloons were as many as 17 different instruments, which were used to measure the presence of carbon dioxide, carbon monoxide, methane and other greenhouse gases at different levels in the atmosphere. The purpose of the measurements is to find out how climate change has affected the earth's system and the carbon dioxide cycle.
23 August: The fourth and last balloon carried a gondola of 523 kg aiming at researching on the greenhouse effect by using an aircore absorber and an amulse laser diode spectrometer to make a sounding of the atmosphere.
In addition to the four main balloons, SSC launched daily metrological sounding balloons and ozonesondes, as well as supported the recovery of 10 smaller balloons via helicopter.
A total of four flights were operated on the Esrange by CNES during August, starting on 13 August. On board the stratospheric balloons were as many as 17 different instruments.