Laughing gas emissions from the ocean: is there a reason to laugh?

Arevalo-Martinez, Damian L. and Bange, Hermann W. (2018) Laughing gas emissions from the ocean: is there a reason to laugh? [Invited talk] In: 3. ClustersConference "Ocean - Climate - Sustainability Research Frontiers", 22.-23.10.2018, Berlin, Germany.

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Monitoring of climate-relevant trace gases is crucial for understanding the impact of the ocean in the climate system. Hand-on-hand with the development of highly accurate spectroscopic-based measurement systems for trace gases, analytical methods for implementing them for large-scale oceanographic surveys has evolved rapidly over the last decade. However, as large data gaps in key coastal and open ocean regions are being filled, it becomes clear that further steps have to be taken in order to evolve from punctual measurements to regional and global observation systems, in particular if the long-term trends of these gases are to be assessed. Nitrous oxide (commonly known as “laughing gas”) is the third most important greenhouse gas and the major ozone-depleting substance in the stratosphere. Given the large contribution of the ocean for the overall emissions of nitrous oxide, this gas is a prime candidate for establishing time series in order to better predict how it will respond to future climate change. In this talk we will show an overview of surface ocean nitrous oxide measurements collected over a large range of oceanic regions. We will present the major findings, as well as new scientific questions which arose over the last decade. Likewise we will discuss potential ways forward towards improved monitoring of nitrous oxide and other climate-relevant trace gases, as well as why observational systems can (and should) serve as key tools for keeping track of the health of marine ecosystems.

Document Type: Conference or Workshop Item (Invited talk)
Keywords: Nitrous oxide Environmental Monitoring
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-CH Chemical Oceanography
OceanRep > The Future Ocean - Cluster of Excellence
OceanRep > SFB 754 > B4
Projects: Future Ocean, SOPRAN, InGOS, SFB754
Date Deposited: 08 Feb 2019 06:45
Last Modified: 08 Feb 2019 06:45

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