Zobacz na żywo: Spotkanie konsultacyjne użytkowników Earth Explorer 11
On July 9, 2025, prominent scientists and specialists in Earth observation will assemble in Prague, Czechia, for a significant event in Earth science ? to explore and discuss the merits of the two finalist satellite mission candidates, CAIRT and WIVERN, as they vie to be chosen as ESA's eleventh Earth Explorer.
The concluding Earth Explorer 11 User Consultation Meeting will be broadcast live on ESA WebTV TWO accessible for everyone. Join us at 09:00 CEST (details below) to be part of this crucial juncture in the development of ESA's next groundbreaking Earth Explorer research mission.
Wednesday, July 9, 2025 ? agenda (all timings in CEST)
09:00 ? Greetings and introductions
09:50 ? CAIRT mission: Science (part 1)
10:25 ? CAIRT mission: Technology
10:55 ? Intermission
11:25 ? CAIRT mission: Science (part 2)
11:55 ? CAIRT mission: Programmatics
12:05 ? CAIRT mission Q&A
12:50 ? Afternoon break
14:00 ? WIVERN mission: Science (part 1)
14:35 ? WIVERN mission: Technology
15:05 ? Intermission
15:35 ? WIVERN mission: Science (part 2)
16:05 ? WIVERN mission: Programmatics
16:15 ? WIVERN mission: Q&A
17:00 ? Open forum
18:00 ? Conclusion
Earth Explorers, designed as part of ESA's FutureEO initiative, represent innovative missions that expand the scope of satellite observation, employing cutting-edge technologies to gain new understandings about our planet. These endeavors not only enhance scientific knowledge but also address critical societal issues tied to food security, water resource management, energy, public health, climate change, and natural resources.
Subsequent to the User Consultation Meeting and after extensive consideration, ESA's Advisory Committee for Earth Observation will offer a scientific recommendation to facilitate the choice of one candidate mission ? either CAIRT or WIVERN. The ultimate verdict will be rendered by ESA's Earth Observation Programme Board during their meeting in September.
CAIRT, which stands for changing-atmosphere infrared tomography, aims to provide essential measurements necessary for significantly enhancing our understanding of the interactions between climate change, atmospheric chemistry, and dynamics within the altitudinal range of about 5 to 115 km. It will concentrate on the processes linking atmospheric circulation with composition and regional climate change, yielding vital observations that existing or future satellite missions cannot provide. Notably, CAIRT will be the first limb-sounder employing imaging Fourier-transform infrared technology in outer space.
Read: CAIRT Mission Selection Report
WIVERN, an abbreviation for wind velocity radar nephoscope, is set to deliver the inaugural measurements of wind within cloudy regions and precipitation. There exists a significant gap in global data regarding wind in overcast areas. The mission is also expected to produce profiles of rain, snow, and ice water. Equipped with a dual-polarization, conically scanning, 94 GHz Doppler radar with an 800 km swath width, this initiative aims to enhance forecasts of severe weather events and provide novel insights into intense storms. Additionally, it will aid in establishing a climate database regarding cloud and precipitation profiling.
Read: WIVERN Mission Selection Report
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