Assimilated 3D Ozone Record
This service provides historic records of multi-year assimilated 3D stratospheric ozone analyses combining satellite observations, meteorological data and chemical-transport modelling. Data from ERS-2, ENVISAT, MetOP and UARS atmospheric instruments will be processed in synergy. Two state-of-the-art four-dimensional variational (4Dvar) assimilation systems are deployed: BASCOE by the Belgian Institute for Space Aeronomy (BIRA-IASB) and SACADA by the German Aerospace Center (DLR) and the Rhenish Institute for Environmental Research (RIU). Using 4Dvar assimilation allows the derivation of most consistent analyses of the atmospheric chemical state.The state of earth's ozone layer and its future trend has serious implications for the biosphere and climate. Therefore, a better understanding of stratospheric processes related to ozone depletion is a top priority of organizations like SPARC (Stratospheric Processes And their Role in Climate), WMO-GAW (World Meteorological Organization - Global Atmospheric Watch) and the European Commission (DG Environment).
We focus on two main issues:
|DLR ozone profile record||Validation results|
|GOME-ROSE ozone mixing ratios near Neumayer Station||GOME-ROSE/SACADA comparison to HALOE|
|BIRA-IASB ozone profile record||Validation results|
|BASCOE/MIPAS ozone analyses and coincident South Pole station observations||BASCOE/MIPAS daily mean results compared to HALOE sunrise observations|
We thank the German Ministry for Education and Research for funding the projects HGF-ENVISAT (HGF/BMBF-Vernetzungsfonds), INVERT (via grant 07ATF11) and SACADA (via grant 07ATF49). We are grateful to our colleagues from the National Center for Atmospheric Research (NCAR) and from the Rhenish Institute for Environmental Research (RIU).
Last modified: January 2007