ESA selects WIVERN as eleventh Earth Explorer mission

The journey started in 2020, when ESA launched a Name for Concepts for daring new missions that would push the boundaries of Earth science and satellite tv for pc expertise. From 15 proposals, 4 have been subsequently shortlisted for detailed examine. In 2023, that shortlist was narrowed additional to 2 contenders: WIVERN and CAIRT.

Following the discharge of an in depth report for every mission (linked beneath) and through an in-depth Consumer Session Assembly in July, each mission ideas have been scrutinised by the scientific neighborhood and ESA’s Advisory Committee for Earth Commentary (ACEO). Primarily based on their analysis, ACEO really useful that WIVERN be chosen for implementation as Earth Explorer 11.

At the moment, ESA’s Earth Commentary Programme Board confirmed that call – formally choosing WIVERN as the subsequent Earth Explorer.

WIVERN, which is brief for wind velocity radar nephoscope, will present the primary measurements of wind inside clouds along with data on the interior construction of clouds, filling a major hole within the international satellite tv for pc observing system. It would additionally ship profiles of cloud water droplets, rain, snow and ice water.

Carrying a dual-polarisation, conically scanning, 94 GHz Doppler radar with an 800 km swath, the mission guarantees to enhance forecasts of hazardous climate and supply new insights into extreme storms. It would additionally contribute to the local weather document of cloud and precipitation profiling.

ESA’s Director of Earth Commentary Programmes, Simonetta Cheli, stated, “After a rigorous choice course of, we’re excited to welcome WIVERN to the Earth Explorer household and we’re desirous to see the groundbreaking science it can ship.

“Earth Explorer missions have persistently surpassed expectations, utilizing breakthrough expertise to ship important insights into our planet – from local weather dynamics to ice soften and gravity.

“Each the WIVERN and CAIRT ideas embody scientific excellence, and I need to thank all of the groups who labored tirelessly to develop them. Their excellent efforts made ACEO’s suggestion course of a very difficult one.”

CAIRT – quick for changing-atmosphere infrared tomography – would have supplied the measurements wanted to make a essential step change in understanding the hyperlinks between local weather change, atmospheric chemistry and dynamics within the altitude vary of about 5 to 115 km.

“Finally, WIVERN provided the broadest vary of scientific and societal functions – spanning environment, ocean, and ice – whereas its exceptionally huge swath promised near-daily protection of huge areas of Earth’s floor,” famous Rune Floberghagen, Head of ESA’s Local weather Motion, Sustainability and Science Division.

Professor René Forsberg, Chair of ACEO, added, “It was certainly a really troublesome resolution. CAIRT’s scientific objectives are each well timed and essential, addressing main unknowns with essential societal advantages as properly. Whereas we really useful WIVERN as Earth Explorer 11, we additionally strongly encourage continued scientific research and area campaigns for CAIRT to maintain the door open for doable future implementation.”