CT24B:
New Approaches to Opening DOM's "Black Box" Using Its Optical and Chemical Properties Posters
CT24B:
New Approaches to Opening DOM's "Black Box" Using Its Optical and Chemical Properties Posters
New Approaches to Opening DOM's "Black Box" Using Its Optical and Chemical Properties Posters
Session ID#: 22989
Session Description:
Investigations focusing on chromophoric dissolved organic matter (CDOM) – dissolved organic matter (DOM) that absorbs light – and the subset of compounds that further exhibit fluorescence (FDOM) are key in tracing production, turnover and mineralisation of DOM in aquatic environments and resolving its role as a carbon reservoir and microbial substrate within the context of biogeochemical cycling of carbon and other elements. The spectroscopic properties of CDOM and FDOM are increasingly being used as proxies for the chemical composition of DOM in freshwater, estuarine and marine waters, and tracing its mixing and fate. Sensor development and high sampling frequency offer great potential. However, these data also provide numerous analytical challenges, such as linking DOM’s optical properties and chemical composition. This session invites contributions offering insight into methodological developments and novel applications of optical and chemical characterization of DOM from all aquatic environments as well as CDOM’s role in radiative transfer. We welcome contributions that focus on optical signals and biogeochemical properties of DOM at interfaces: terrestrial-aquatic, land-ocean, ocean-atmosphere, benthic-pelagic, dissolved-particulate, water-sediment. We also welcome contributions that utilize remote sensing and in situ monitoring to make connections between optical and chemical properties of organic matter and quantify fluxes across the aforementioned interfaces.
Primary Chair: John R Helms, Morningside College, Biology and Chemistry Department, Sioux City, IA, United States
Co-chairs: Urban Johannes Wünsch, Technical University of Denmark, National Institute of Aquatic Resources, Kgs. Lyngby, Denmark, Colin A Stedmon, Technical University of Denmark, National Institute for Aquatic Resources, Kgs. Lyngby, Denmark and Chris L Osburn, North Carolina State University, Marine, Earth, and Atmospheric Sciences, Raleigh, NC, United States
Moderators: Urban Johannes Wünsch, Technical University of Denmark, National Institute of Aquatic Resources, Kgs. Lyngby, Denmark, Chris L Osburn, North Carolina State University, Marine, Earth, and Atmospheric Sciences, Raleigh, NC, United States and Colin A Stedmon, Technical University of Denmark, National Institute for Aquatic Resources, Kgs. Lyngby, Denmark
Student Paper Review Liaison: John R Helms, Morningside College, Biology and Chemistry Department, Sioux City, IA, United States
Index Terms:
4264 Ocean optics [OCEANOGRAPHY: GENERAL]
4803 Analytical chemistry [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4850 Marine organic chemistry [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Cross-Topics:
- BN - Biogeochemistry and Nutrients
- CD - Coastal Dynamics
- E - Estuarine Processes
- IS - Ocean Observatories, Instrumentation and Sensing Technologies
Abstracts Submitted to this Session:
Mixing Behavior of the Chromophoric Dissolved Organic Matter in the Pearl River Estuary in Spring (310988)
See more of: Chemical Tracers, Organic Matter and Trace Elements