Create CCI DRS Concept Scheme

[philipkershaw]

The CCI DRS (Directory Reference Syntax) is a set of key parameters to classify CCI ECV datasets and enable users to discover them. These are defined in a specification document. We now want to encode them in SKOS to enable better management and mapping of relationships between terms.

The terms are:

• Organisation (equiv. to Institute in CMIP5 DRS)
• Processing Level
• Platform
• Sensor
• Algorithm
• ECV Name
• Variable
• Frequency (i.e. temporal resolution)
• (Spatial Resolution) - needs clarification

Each of these terms itself has a vocabulary of terms aka Concept Scheme. In some case these have been defined, where they don't exist yet new issues have been raised.

The CCI DRS should be a concept scheme which contains all the concept schemes for the list above.