Damian Leonardo Arévalo Martínez

Carbon monoxide (CO) plays a crucial role for atmospheric chemistry and is a significant component of the marine carbon cycle. The ocean is considered as a relatively minor source of atmospheric CO however, a very high degree of uncertainty is associated with the available emission estimates due to the omission of coastal regions and potentially important biological sources such as production by phytoplankton. In this project, we aim to significantly improve CO emission estimates by reassessing its fluxes based on new measurements with unprecedented, high temporal and spatial coverage. Moreover, we will use a novel approach to estimate the global significance of biological production of CO. For this, we will use a multiyear, multiplatform analysis to (i) create a first global map of CO emissions, (ii) provide a first global estimate of the CO source from marine phytoplankton, and (iii) assess the development of future CO emissions under climate change scenarios.