GECKO-A

The generated mechanism is typically used inside a 0D box model, and has been applied to study chemistry in urban and rural plumes, or simulate chamber experiments. The GECKO-A box model comes with a solver capable of handling the large number of species and reactions.

The development of GECKO-A is a collaborative effort between scientists at NCAR/ACOM and LISA/CNRS France. The GECKO-A generator is still a research code and can only be obtained for collaborative projects. However, a number of pre-generated mechanisms (see list below) can be made available for use with the box model.

GECKO-A Library for Selected Hydrocarbon Precursors

The GECKO-A Output Library provides the main gas and particle phase products from individual precursor hydrocarbons, under different conditions ranging from pristine remote to polluted urban. Results include distributions of functional groups, vapor pressures, solubility coefficients, yields of secondary organic aerosols (SOA) and van Krevelen diagrams of the oxidation pathways.

U.S. Funding:

National Center for Atmospheric Research (NCAR) https://ncar.ucar.edu/
U.S. National Science Foundation https://www.nsf.gov/
U.S. Department of Energy, Atmospheric System Research program https://asr.science.energy.gov/

GECKO-A at LISA

Laboratoire Inter-Universitaire des Systèmes Atmosphériques (LISA)
Led by Prof. Bernard Aumont http://geckoa.lisa.u-pec.fr/