CMP1 – Collecting, harmonizing and synthesizing global carbon observations

The Component is divided into 7 work packages, the first six of which are dedicated to each of the four major systems, i.e. Land fluxes and stocks, ocean fluxes and inventories, atmospheric and other constraints, and fossil fuel and other anthropogenic emissions. The seventh workpackage is devoted to the synthesis. This component will establish the data element of the integrated carbon observing system vision put forth in the GEO Carbon Strategy publication by merging and synthesizing data streams from a broad array of sensors and sources, and covering the land, ocean, atmosphere, and human dimension.

The overall strategy of building a coordinated system of global carbon cycle observations requires a highly integrated approach that permits to collect, harmonize, and synthesize carbon observations from a wide variety of platforms and techniques within a coherent framework. This component assembles a large team of specialists for the various data streams and tasks them to produce prototypes of these streams. This will require them to develop the procedures needed in order to ensure that observations produced by different networks and observing systems and covering differing spatial and temporal domains are fully compatible and can readily be used. In addition, this component will undertake a data-driven synthesis in order to establish budgets that are independent of the data assimilation systems and thereby provide a means to evaluate their results. Furthermore, this permits larger flexibility as not all data streams can be readily integrated into the data assimilation system. Finally, hotspots and trends will be investigated in order to recognize emerging changes early and clearly.

Specific objectives of this Component are:

  • establishment of prototypes for the key data streams required to establish global and regional carbon budgets through data assimilation systems and based on data alone, consistent with the goals laid out in the GEO Carbon Observation Strategy Report;
  • establishment of procedures for data assemblage, quality control, data flows, and data storage for each of the key data streams;
  • synthesis of observations into pure data-driven products, including uncertainty estimates;
  • identification and assessment of hotspots and trends.