Stratification Influences on Instream Carbon Chemistry and Export within a Beaded Arctic Stream and Evaluation of Fluorescence Instrumentation ...
I investigated the effect of stratification in beaded stream pools on the quantity and quality of dissolved organic matter (DOM). Soil waters feeding the pool bottom waters overlapped in chromophoric (CDOM) and fluorescent (FDOM) quantity and quality, while pool surface waters had on average 56 and...
Main Author: | |
---|---|
Format: | Thesis |
Language: | English |
Published: |
University of North Carolina at Chapel Hill
2013
|
Subjects: | |
Online Access: | https://dx.doi.org/10.17615/fyzw-yd75 https://cdr.lib.unc.edu/concern/dissertations/q811kk61p?locale=en |
id |
ftdatacite:10.17615/fyzw-yd75 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.17615/fyzw-yd75 2024-03-31T07:51:01+00:00 Stratification Influences on Instream Carbon Chemistry and Export within a Beaded Arctic Stream and Evaluation of Fluorescence Instrumentation ... Harrold, Katherine H. 2013 https://dx.doi.org/10.17615/fyzw-yd75 https://cdr.lib.unc.edu/concern/dissertations/q811kk61p?locale=en en eng University of North Carolina at Chapel Hill In Copyright http://rightsstatements.org/vocab/InC/1.0/ Text thesis Dissertation Thesis 2013 ftdatacite https://doi.org/10.17615/fyzw-yd75 2024-03-04T11:34:09Z I investigated the effect of stratification in beaded stream pools on the quantity and quality of dissolved organic matter (DOM). Soil waters feeding the pool bottom waters overlapped in chromophoric (CDOM) and fluorescent (FDOM) quantity and quality, while pool surface waters had on average 56 and 32 % less CDOM and FDOM, respectively, compared to pool bottom waters. The observed differences between pool surface and bottom waters were consistent with shifts in CDOM and FDOM following experimental photodegradation of pool bottom waters. To improve FDOM characterization across time and instruments, FDOM analysis was evaluated using the Aqualog, a new instrument optimized for FDOM, and the Fluoromax-4, a conventional spectrofluorometer, across a range of CDOM and FDOM concentrations. While the application of an empirical inter-instrument correction factor improved the inter-instrument FDOM comparison, inter-instrument variability was not fully removed by application of a range of correction factors. ... Thesis Arctic DataCite Metadata Store (German National Library of Science and Technology) Arctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
description |
I investigated the effect of stratification in beaded stream pools on the quantity and quality of dissolved organic matter (DOM). Soil waters feeding the pool bottom waters overlapped in chromophoric (CDOM) and fluorescent (FDOM) quantity and quality, while pool surface waters had on average 56 and 32 % less CDOM and FDOM, respectively, compared to pool bottom waters. The observed differences between pool surface and bottom waters were consistent with shifts in CDOM and FDOM following experimental photodegradation of pool bottom waters. To improve FDOM characterization across time and instruments, FDOM analysis was evaluated using the Aqualog, a new instrument optimized for FDOM, and the Fluoromax-4, a conventional spectrofluorometer, across a range of CDOM and FDOM concentrations. While the application of an empirical inter-instrument correction factor improved the inter-instrument FDOM comparison, inter-instrument variability was not fully removed by application of a range of correction factors. ... |
format |
Thesis |
author |
Harrold, Katherine H. |
spellingShingle |
Harrold, Katherine H. Stratification Influences on Instream Carbon Chemistry and Export within a Beaded Arctic Stream and Evaluation of Fluorescence Instrumentation ... |
author_facet |
Harrold, Katherine H. |
author_sort |
Harrold, Katherine H. |
title |
Stratification Influences on Instream Carbon Chemistry and Export within a Beaded Arctic Stream and Evaluation of Fluorescence Instrumentation ... |
title_short |
Stratification Influences on Instream Carbon Chemistry and Export within a Beaded Arctic Stream and Evaluation of Fluorescence Instrumentation ... |
title_full |
Stratification Influences on Instream Carbon Chemistry and Export within a Beaded Arctic Stream and Evaluation of Fluorescence Instrumentation ... |
title_fullStr |
Stratification Influences on Instream Carbon Chemistry and Export within a Beaded Arctic Stream and Evaluation of Fluorescence Instrumentation ... |
title_full_unstemmed |
Stratification Influences on Instream Carbon Chemistry and Export within a Beaded Arctic Stream and Evaluation of Fluorescence Instrumentation ... |
title_sort |
stratification influences on instream carbon chemistry and export within a beaded arctic stream and evaluation of fluorescence instrumentation ... |
publisher |
University of North Carolina at Chapel Hill |
publishDate |
2013 |
url |
https://dx.doi.org/10.17615/fyzw-yd75 https://cdr.lib.unc.edu/concern/dissertations/q811kk61p?locale=en |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_rights |
In Copyright http://rightsstatements.org/vocab/InC/1.0/ |
op_doi |
https://doi.org/10.17615/fyzw-yd75 |
_version_ |
1795029536558022656 |