CCI Permafrost requirements
The ultimate objective of Permafrost_cci is to develop and deliver permafrost maps as ECV products primarily derived from satellite measurements. The required associated parameters by GCOS for the ECV Permafrost are “Depth of active layer (m)” and “Permafrost temperature (K)”. Permafrost_cci will provide for different epochs consistent global maps of the parameters permafrost temperature and active layer thickness based on Earth Observation records ingested into a permafrost model scheme. More information: http://cci.esa.int/Permafrost

The aim of this survey is to determine the requirements of the climate and landsurface modelling community.

The survey coveres the two target parameters separately: (1) ground temperatures and (2) active layer thickness.

Definition of categories
Threshold (minimum) requirement:
The limit at which the observation becomes ineffectual and is not of use for the climate-related application.

Target (optimal) requirement:
The maximum performance limit for the observation, beyond which no significant improvement would result for climate applications.

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