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Frequently Asked Questions


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The round robin exercise comapres in the first year a larger set of algorithms to find the best performing combinations or modules out of them. These will then be implemented into the prototype algorithms which are then used for the ECV production in the second year of the project.

The round robin exercise will be based on 4 months of global data (March, June, September, December 2008). The ECV product will comprise of the full year of 2008 dataset.

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The round robin in aerosol_cci will  compare different algorithms. There are different algorithms applied to the same instrument and other algorithms applied to different instruments. The overall purpose is the selection of best performing algorithms/modules for the ECV aerosol prototype.

In this comparison it is expected that no single algorithm will perform best everywhere and under all conditions. Therefore the round robin exercise has the following goals:

  • selecting modules which perform best for several instruments
  • selecting one of several algorithms (or combinations) for the same instrument
  • selecting algorithms which can provide additional information (e.g. coverage, parameters)