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CL2.17

Physical and biogeochemical feedbacks in the climate system and climate observations from space
Convener: Vladimir Alexeev  | Co-Conveners: Gerd A. Folberth , Gottfried Kirchengast , Joerg Schulz 
Oral Programme
 / Thu, 07 Apr, 15:30–17:00  / Room 16
Poster Programme
 / Attendance Thu, 07 Apr, 17:30–19:00  / Display Thu, 07 Apr, 08:00–19:30  / Hall XL
The aim of the session is to present recent research and promote discussion relevant to feedbacks within the climate system (relevance to future climate change is particularly welcome, but not essential). Both physical and biogeochemical feedbacks are expected to feature prominently in the session.
In addition, climate observations from space are a key topic, related to climate feedbacks and otherwise (see further below).

Possible topics we would be very keen to have in the session include:
- cloud feedbacks
- ice-albedo feedbacks
- other polar amplification mechanisms
- hydrological feedbacks
- carbon cycle feedbacks
- vegetation and/or land-use change feedbacks
- ocean circulation feedbacks
- other biogeochemical feedbacks such as ocean DMS production, terrestrial nitrogen cycling, dust production and feedbacks involving atmospheric chemistry

Observational and modelling studies are equally encouraged, with modelling studies expected to span the range of model hierarchy from simple models to EMICs to coupled-GCMs.

Observations of the evolution of the Earth's climate from global to regional scales, and at time scales from months to decades, are of vital importance, and a key requisite, for further progress in virtually all areas of climate system and Earth system science, for example, global climate modeling & prediction, including impacts and feedbacks, and anthropogenic climate change detection & attribution.
Spaceborne observations, i.e., satellite measurements, are by far the most powerful means to fulfil these vast data needs in all parts of the climate system, including atmosphere, oceans, ice, and land. This session provides a forum for studies developing or utilizing such climate observations from space.