TY - GEN
AU - Souhail Boussetta
AU - Gianpaolo Balsamo
AU - Anton Beljaars
AU - Agusti Panareda
AU - J-C. Calvet
AU - C. Jacobs
AU - B.J.J. van den Hurk
AU - P. Viterbo
AU - S. Lafont
AU - Emanuel Dutra
AU - L. Jarlan
AU - M. Balzarolo
AU - D. Papale
AU - G. van der Werf
AB - A carbon module has been added to the land surface model of the European Centre for Medium-Range Weather Forecasts (ECMWF) in order to simulate the photosynthesis processes fixing carbon dioxide into the biomass (the gross primary production) and the release of carbon dioxide via land biogenic processes (ecosystem respiration). This land carbon parameterization, integrated with the Hydrology-Tiled ECMWF Scheme for Surface Exchange over Land (HTESSEL), benefits from accurate simulations of soil moisture and introduces the capability of interacting with atmospheric carbon transport models by providing a biospheric CO2 flux (the Net Ecosystem Exchange NEE) as surface boundary condition. A description of the new carbon-based land surface scheme is provided here, together with its optimization and extensive verification based on field site experiments representing different types of vegetation and climate regimes. In areas where field-sites observations are not available, inter-comparison with well established and widely used NEE products are presented and discussed. The key features and the limitations of the model are evaluated in offline simulations driven by realistic meteorological forcing. In addition, global land surface carbon fluxes are compared with similar outputs from other state-of-the-art carbon models both in offline and in atmospheric-coupled simulations within a global transport model, showing an improved description of the interannual variability of atmospheric CO2 concentrations.
BT - ECMWF Technical Memoranda
DA - 05/2012
DO - 10.21957/8kr6q0y3z
LA - eng
M1 - 675
N2 - A carbon module has been added to the land surface model of the European Centre for Medium-Range Weather Forecasts (ECMWF) in order to simulate the photosynthesis processes fixing carbon dioxide into the biomass (the gross primary production) and the release of carbon dioxide via land biogenic processes (ecosystem respiration). This land carbon parameterization, integrated with the Hydrology-Tiled ECMWF Scheme for Surface Exchange over Land (HTESSEL), benefits from accurate simulations of soil moisture and introduces the capability of interacting with atmospheric carbon transport models by providing a biospheric CO2 flux (the Net Ecosystem Exchange NEE) as surface boundary condition. A description of the new carbon-based land surface scheme is provided here, together with its optimization and extensive verification based on field site experiments representing different types of vegetation and climate regimes. In areas where field-sites observations are not available, inter-comparison with well established and widely used NEE products are presented and discussed. The key features and the limitations of the model are evaluated in offline simulations driven by realistic meteorological forcing. In addition, global land surface carbon fluxes are compared with similar outputs from other state-of-the-art carbon models both in offline and in atmospheric-coupled simulations within a global transport model, showing an improved description of the interannual variability of atmospheric CO2 concentrations.
PB - ECMWF
PY - 2012
EP - 39
T2 - ECMWF Technical Memoranda
TI - Natural carbon dioxide exchanges in the ECMWF Integrated Forecasting System: Implementation and offline validation
UR - https://www.ecmwf.int/node/8338
ER -