Dataset: CDOM
Data Citation:
Cohn, M. R., Medeiros, P. M., Gifford, S. M. (2023) Chromophoric dissolved organic matter (CDOM) from two microcosm incubation experiments conducted under three light treatments using water originating from West Bay of the Neuse River Estuary, North Carolina USA in 2021 and 2022. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-09-18 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.908572.1 [access date]
Terms of Use
This dataset is licensed under Creative Commons Attribution 4.0.
If you wish to use this dataset, it is highly recommended that you contact the original principal investigators (PI). Should the relevant PI be unavailable, please contact BCO-DMO (info@bco-dmo.org) for additional guidance. For general guidance please see the BCO-DMO Terms of Use document.
DOI:10.26008/1912/bco-dmo.908572.1
Spatial Extent: N:34.925672 E:-76.365069 S:34.925672 W:-76.365069
Temporal Extent: 2021-09-02 - 2022-05-28
Principal Investigator:
Scott M. Gifford (University of North Carolina at Chapel Hill, UNC-Chapel Hill)
Scientist:
Patricia M. Medeiros (University of Georgia, UGA)
Student:
Samantha K. Cerda (University of North Carolina at Chapel Hill, UNC-Chapel Hill)
Melanie R. Cohn (University of North Carolina at Chapel Hill, UNC-Chapel Hill)
BCO-DMO Data Manager:
Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)
Version:
1
Version Date:
2023-09-18
Restricted:
No
Validated:
Yes
Current State:
Final no updates expected
Chromophoric dissolved organic matter (CDOM) from two microcosm incubation experiments conducted under three light treatments using water originating from West Bay of the Neuse River Estuary, North Carolina USA in 2021 and 2022
Abstract:
Chromophoric dissolved organic matter (CDOM) was collected for two microcosm incubation experiments. Sample water originated from West Bay of the Neuse River Estuary, North Carolina USA in 2021 and 2022. The microcosms were 60 liters, conducted in biological duplicates under three light treatment incubations: 12-hour light-dark cycle of photosynthetically active radiation (PAR), 12-hour light-dark cycle of UV-B radiation, or darkness. Samples were collected from the microcosms in duplicate every few days for over one month to examine how light and the resulting microbial activity altered the dissolved organic carbon (DOC) pool over time. Absorbance spectra of 0.2 micron filtered estuarine water was measured from 190 - 1100 nanometers (nm) on a Genesys 10S UV-Vis spectrophotometer for the calculation of absorbance coefficients, spectral slopes, and slope ratio which describe the organic matter complexity as it develops throughout the incubations.