MACC-II Deliverable D_57.7 Code for chemical box model Date: 07/2014 Lead Beneficiary: RIUUK (27) Nature: O Dissemination level: PU Grant agreement n°283576 Work-package Deliverable Title Nature Dissemination Lead Beneficiary Date Status Authors Approved by Contact 57 (GRG: Targeted research to improve model systems and development of C-IFS) D_57.7 Code for chemical box model kernel for variational emission source inversion O PU RIUUK (27) 07/2014 Final version Ketevan Kasradze, Hendrik Elbern (RIUUK) Martin Schultz (FZJ) [email protected] The objective of this work was to „Begin the development of code to allow for source inversion, i.e. provide of a MOZART based reactive gas kernel algorithm for emission rate correction by variational inversion“ (DoW). The code of a Kinetic PreProcessor (KPP) box model with forward and adjoint solvers has been submitted to FZJ and ECMWF on June 11, 2014 (kppbox.tar.gz). After unpacking, two directories with kppbox_adjoint and kppbox_forward are created which contain the source code of the box model and a Makefile as well as some test results. Runtime tests were performed which yielded the following results: autonomus non-autonomus | ros2 | 4m 5s | 6m 10s | ros3 |1m 30s |1m 50s | ros4 | 4m 5s | 6m 30s | rodas3 | 1m 20s | 1m 30s | rodas4 | 2m 5s | 3m 5s This document has been produced in the context of the MACC-II project (Monitoring Atmospheric Composition and Climate - Interim Implementation). The research leading to these results has received funding from the European Community's Seventh Framework Programme (FP7 THEME [SPA.2011.1.5-02]) under grant agreement n° 283576. All information in this document is provided "as is" and no guarantee or warranty is given that the information is fit for any particular purpose. The user thereof uses the information at its sole risk and liability. For the avoidance of all doubts, the European Commission has no liability in respect of this document, which is merely representing the authors view. 2/2