TY - GEN
AU - J.-J. Morcrette
AU - Angela Benedetti
AU - A Ghelli
AU - J. Kaiser
AU - A.P. Tompkins
AB - Prognostic aerosols were experimentally introduced in the ECMWF Integrated Forecasting System (IFS) as part of the GEMS project in 2005. Their representation was refined as part of the MACC project, starting in 2009. Here, the MACC aerosol system is used to explore the impact of different levels of interactions between the aerosols and either the radiation and/or the cloud processes on radiation and precipitation fields, and objective scores. Ten-day forecasts including fully interactive aerosols are compared to forecasts with aerosols specified from the analysis and kept constant thereafter. Whereas the temporal variability of the prognostic aerosols is shown to have strong local effects on surface parameters, the impact on objective scores is much smaller.
BT - ECMWF Technical Memoranda
DA - 12/2011
DO - 10.21957/wjuxaujrn
LA - eng
M1 - 660
N2 - Prognostic aerosols were experimentally introduced in the ECMWF Integrated Forecasting System (IFS) as part of the GEMS project in 2005. Their representation was refined as part of the MACC project, starting in 2009. Here, the MACC aerosol system is used to explore the impact of different levels of interactions between the aerosols and either the radiation and/or the cloud processes on radiation and precipitation fields, and objective scores. Ten-day forecasts including fully interactive aerosols are compared to forecasts with aerosols specified from the analysis and kept constant thereafter. Whereas the temporal variability of the prognostic aerosols is shown to have strong local effects on surface parameters, the impact on objective scores is much smaller.
PB - ECMWF
PY - 2011
EP - 36
T2 - ECMWF Technical Memoranda
TI - Aerosol-cloud-radiation interactions and their impact on ECMWF/MACC forecasts
UR - https://www.ecmwf.int/node/11283
ER -