BGS Seminar Series: Chromophoric dissolved organic matter and refractory carbon storage in the deep sea

About

Date: 

02/05/2020 - 12:00pm to 02/06/2020 - 11:45am

PI/Speaker: 

Norm Nelson
Please join us for BGS's weekly Wednesday seminar, at noon this Wednesday the 5th of February, in the Ellison ERI 6th floor conference room (6824).  There will be light refreshments and tea, and please feel free to bring your lunch.
 

 

We will hear from Norm Nelson, who will give us a talk entitled, "Chromophoric dissolved organic matter and refractory carbon storage in the deep sea".
 
Description:
'The deep ocean holds vast amounts of organic carbon (up to 700 Pg C), much of it in chemical forms that are resistant to microbial degradation. But the dissolved organic matter pool is poorly characterized because of the large numbers of compounds and the difficulty of identifying even a small fraction of them. However, certain optical properties of the DOM, spectral absorption and fluorescence, correlate well with diagenesis of refractory DOM in the ocean. I’ll speak briefly on the prospects for using spectroscopic tools to characterize DOM in the context of understanding the source and lifetime of the refractory carbon in the deep ocean.'