Remedy 1: The use of traceably calibrated radiometers in land surface measurement campaigns (both airborne and ground-based).

Primary gap remedy type: 
Deployment
Secondary gap remedy type: 
Research
Proposed remedy description: 

This remedy concerns the use of traceably calibrated radiometers in land surface measurement campaigns (both airborne and ground-based). Such campaigns can be used to validate both the (combined) emissivity and skin temperature estimates calculated from window-channels observations for temperature and humidity sounders, and emissivity models. Such campaigns would need to be undertaken across a sufficiently diverse set of land-surface types and meteorological seasons to provide representative results that enabled broad applicability. There is also a need for robust ground-truth activities in such campaigns to minimise the uncertainty. 

Relevance: 

It is proposed to use traceably calibrated radiometers in land surface measurements campaigns (both airborne and ground-based. Such campaigns can be used to validate both the (combined) emissivity and skin temperature estimates calculated from window-channels observations for temperature and humidity sounders, and emissivity models. 

Measurable outcome of success: 

Documented, quantitative evaluation of land surface radiative transfer contributions with respect to measurements obtained during airborne campaigns for a globally representative range of land surfaces. 

Expected viability for the outcome of success: 
  • Medium
Scale of work: 
  • Consortium
Time bound to remedy: 
  • Less than 5 years
Indicative cost estimate (investment): 
  • Medium cost (< 5 million)
Indicative cost estimate (exploitation): 
  • No
Potential actors: 
  • National funding agencies
  • National Meteorological Services
  • ESA, EUMETSAT or other space agency
  • Academia, individual research institutes