Objectives (5 yr plan)

• 3.1.1 To collect existing main driving climate, weather, soil and land use characteristics of the area.
• 3.1.2 To produce a 2 km resolution database of fossil fuel emission for the area.
• 3.1.3 To produce a geo-referenced set of forest growth and land use data since 1980.
• 3.1.4 To optimise flight and deployment patterns for the experimental aircraft and ground based systems using a high-resolution modelling framework.
• 3.1.5 To develop and maintain an easily accessible system for data entry, storage and retrieval for all regional modelling efforts.
• 3.1.6 To compile, check, store and make available the data of the Regional Experiment Component.

Outline of work plan

Tasks 3.1.1. The main purpose of this task is to provide estimates of the carbon balance of the region using all available data and atmospheric model information. It will involve inventories of existing data (Obj 3.1.1), a new assessment at high resolution (2 km) of fossil fuel emissions of the area of the experiment.

Task 3.1.2: For the slow cycle, we will use the 8 km resolution downscaled weather information that is available at CNRM and will be extended for use in biogeochemical models. These models will be calibrated with flux data for the main land use types and then run for a 20-year period. The required input data on land use history and management is obtained in WP1. We intend to use the MesoNH model, which will be extended to carry CO 2 in the simulation.

Task 3.1.3: For the fast cycle we will use a data assimilation system at mesoscale that mirrors the system developed for the large scale (Camels and Continental Integration Component). We will mainly use the French Arome system developed at CNRM for this purpose and extend it to carry CO 2 in the assimilation procedure.

Task 3.1.4 Operation of data centre for atmosphere data

The data base of the regional experiment will primarily be based at CNRM. The Data Centre of the regional component receives, checks and stores the data of the component, delivers meta-data to the Central Database and creates links for data access with the Central Database. The regioanl component has assigned Dr. Noilhan of CNRM as Data Centre manager. It will contain links to the RECAB database and consolidated datasets of the RECAB campaigns. It will contain in an easily accessible form all the data the reanalysis of the RECAB campaigns, main driving climate, weather, soil and land use characteristics of the area of the Regional experiment, the 2 km resolution data of fossil fuel emission for the area and a geo-referenced set of forest growth and land use data since 1980. It will contain all the experimental data collected during the experiment (aircraft data, meteorological data and surface observations and remote sensing).