Associate professor Colin Stedmon, Section for Oceanography and Climate, DTU Aqua talks about conservative and non conservative behavior of DOM in polar environments in the so-called Kaffeklubben at DTU Aqua. Kaffeklubben arranges seminars presenting recent research within aquatic sciences. Guests are welcome.
Abstract
Dissolved organic matter (DOM) represents a dynamic and large reservoir of organic carbon in the ocean. It consists of a complex mixture of largely unidentified organic compounds which range in thier reactivty from those supporting heterotrophic microbial production, which are turned over short time scales, to material which is thought to be essentially resistant to degradation and therefore a potential carbon sink. In this presentation I will provide some examples of how we are using the UV-Visible spectroscopic properties of DOM to trace its dynamics in polar environments at contrasting scales. An example of how these measurements can be used to trace the production and accumulation of DOM in Antarctic sea ice will be given. Then we will switch poles and see how tracing the refractory fraction
About Kaffeklubben
DTU Aqua’s so-called Kaffeklubben (The Coffee Club) arranges seminars presenting recent research on various topics across aquatic sciences, hence contribution to knowledge sharing in DTU Aqua.
The lectures are held by scientists from DTU Aqua or from other research institutes in Denmark or abroad. The audience consists mainly of employees at DTU Aqua, but others are welcome to participate. Registration is not necessary
The seminars are in English and last one hour. They take place at DTU Aqua in Charlottenlund, Copenhagen.