10.26165/JUELICH-DATA/UDIDUGDreger, RaphaelRaphaelDreger0009-0004-6269-4025Forschungszentrum Jülich (ICE-3)CAABA/MECCA model output for evaluating optimized step size control in Rosenbrock solvers for stiff ODEsJülich DATA2025ChemistryComputer and Information ScienceEarth and Environmental SciencesMathematical SciencesDreger, RaphaelRaphaelDregerForschungszentrum Jülich (ICE-3)2025-08-042025-09-1010.5194/gmd-18-4273-202560472869application/zip1.1CC0 WaiverThe dataset contains CAABA/MECCA simulations that were done to analyze the step size control of a rosenbrock solver for stiff chemical ordinary differential equations. Multiple 12 hour simulations were done with different controller settings for 3 scenarios with different starting concentrations, emphasizing different aspects of the chemical mechanism.