R_EDA: European environmental data assimilation
The wealth of earth observation data of both types, in situ and remote sensing, provides an increasing information stream to improve daily air quality forecasts. However, satellite-borne sensors in particular need special techniques for exploitation in data assimilation algorithms. R-EDA will develop and deliver improved data assimilation methods to assure optimal exploitation of observations. Both in situ and remote sensing in combination with participating regional chemistry transport models serve as the underlying data. The ability to provide analysed chemical fields along with locally and temporally resolved error estimates is a key objective, making use of a multi-model ensemble approach. Assimilated chemical constituents include all routinely measured species and particulate matter, irrespective of direct or indirect (e.g. tropospheric column or aerosol optical depth) data provision. The resulting analyses of the chemical state of the atmosphere are required to be chemically consistent, that is to preserve the integrity of natural balance within chemical families.
Data assimilation systems developed in R-EDA will use data provided via sub-projects D-INSITU and D-SAT. The application and operation will serve two other sub-projects:
- Regional air quality ensemble forecasts (R-ENS), and
- Validated assessments of air quality in Europe (R-EVA).
The added value of this data assimilation development activity leads to validated improvements of air quality monitoring and forecasting from European to local scales in downstream services, based on statistical assessments pertinent to data assimilation algorithms.
CERFACS - Andrea Piacentini, Danielle Cariolle, Sebastien Massart
FMI - Mikhail Sofiev
FRIUUK - Elmar Friese, Hendrik Elbern (lead)
INERIS - Laurence Rouïl
KNMI - Henk Eskes
LMD - Gilles Foret
LISA University Paris 12 - Mathias Beekmann
Météo-France CNRM - Laaziz Elamraoui
MET. NO - Alvaro Valdebenito, Michael Gauss
NILU - Leonor Tarrason
SMHI - Lennart Robertson, Magnus Engardt, Michael Kahnert
TNO - Martijn Schaap, Peter Builtjes, Renske Timmermans