Mapping marine emissions of reactive trace gases to understand their role in weather and climate
Marine ecosystems produce a wide variety of reactive gases that alter the properties of aerosols and clouds, hence influencing weather and climate. Because these compounds have an atmospheric lifetime of hours to days, the ocean-atmosphere interactions they mediate occur primarily on meteorological scales. Thus, knowing where and when relevant emissions occur is crucial. However, current research relies strongly on the climatological view, which smoothes out variability. In this talk I make the case for studying in greater depth how weather-scale (or “synoptic”) events successively shape intraseasonal and interannual variability. Understanding and predicting these scales has become a pressing need because global change is altering the frequency and magnitude of extreme events, shifting the mean seasonal cycles, and eventually pushing the coupled ocean-atmosphere system beyond critical thresholds. Ongoing advances in Earth observation from remote and in situ autonomous platforms, numerical modeling and data science are making the understudied scales accessible at unprecedented resolution. In this talk I will explore these ideas and illustrate them with examples drawn from both the literature and my own research, centered mostly on the biogenic gas dimethylsulfide and its impact on aerosols in polar regions. Finally, I will propose some pathways for advancing this research program
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| Format: | material didáctico biblioteca |
| Language: | English |
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CSIC - Instituto de Ciencias del Mar (ICM)
2022-11-11
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| Online Access: | http://hdl.handle.net/10261/284532 |
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