Arevalo-Martinez, Damian L. , Steinhoff, Tobias and Bange, Hermann W. (2020) Surface variability of climate-relevant trace gases (N2O, CO2, CO) in the tropical eastern South Pacific Ocean . In: Status Conference Research Vessels 2020: Conference transcript. . Schriftenreihe Projektträger Jülich, 13 . Forschungszentrum Jülich, Jülich, Germany, pp. 149-152, 412 pp. ISBN 978-3-95806-479-9

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Abstract

Given the climatic relevance of marine-derived trace gases, the investigation of their distribution and emissions from key oceanic regions is a crucial need in our efforts to better understand potential responses of the ocean and the overlying atmosphere to environmental changes such as warming and deoxygenation. Low-oxygen waters connected to coastal upwelling systems and the associated oxygen minimum zones(OMZ) are well-recognized strong sources of several trace gases. Our main goal during the M135-M138 cruises was to assess the distribution of different gases which are relevant for the biogeochemical cycling of carbon and nitrogen in the OMZ off Peru, as well as the spatial and temporal variability of their sea-air fluxes.

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