This data set supplements manuscript "Temperature quenching of DOM fluorescence sensor: spatial variability of the temperature response in the ice-covered fjords of the Northern Canadian Arctic Archipelago Eddies in ice-covered fjords of the northern Canadian Arctic Archipelago" by Igor A. Dmitrenko, Colin A. Stedmon, David Capelle, Tonya Burgers, Sergei A. Kirillov, Rachel Mandryk, David G. Babb, Jens Ehn, and Dorthe Dahl-Jensen submitted to Journal of Geophysical Research: Oceans.

Using in situ observations in the Nansen Sound fiord system, we assessed the temperature quenching of DOM fluorescence subtracting a linear relationship with temperature for the Atlantic-derived water layer, where the terrestrial and Pacific-derived DOM fractions are weak or absent. After correcting for temperature quenching, DOM fluorescence has been used as an effective proxy for identifying water dynamics in the landfast ice-covered fjords of the Nansen Sound fiord system. Data file is in ASCII format.

The data set consists of 49 CTD (conductivity-temperature-depth) and FCDOM (fluorescence of colored dissolved organic matter) profiles taken in the Nansen Sound fiord system between 7 and 25 May 2025 using snowmobiles and a Twin Otter aircraft operated on skis. Observations were carried out with a RBRconcerto3 CTD outfitted with a Seapoint FCDOM sensor for EX/EM = 370/460 nm. FCDOM vertical profiles were averaged with a 7-m moving window. CTD profiles were 1-meter binned.

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Field Value
Dataset Name Oceanographic observations (CTD and DOM fluorescence) in the Nansen Sound fiord system of the eastern Canadian Arctic Archipelago in May 2025
Dataset General Type CTD data
Dataset Type Dataset
Dataset Level
Program Website
Keyword Vocabulary
Keyword Vocabulary URL
Theme Cryosphere
Marine
Dataset Status Planned
Maintenance and Update Frequency As needed
Dataset Last Revision Date 2026-05-13
Dataset DOI 10.17632/tg79gn7b2z.1
Metadata Creation Date 2026
Publisher CanWIN
Field Value
Dataset Collection Start Date 2025-05-07
Dataset Collection End Date
Spatial regions Canadian Arctic Archipelago
Spatial extent West Bound Longitude
Spatial extent East Bound Longitude
Spatial extent South Bound Latitude
Spatial extent North Bound Latitude
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Sample Collection
Sample Collection 1
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Standardized Sampling Instrument Name
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Comment
Method Link
Method Summary

The data set consists of 49 CTD (conductivity-temperature-depth) and FCDOM (fluorescence of colored dissolved organic matter) profiles taken in the Nansen Sound fiord system between 7 and 25 May 2025 using snowmobiles and a Twin Otter aircraft operated on skis. Observations were carried out with a RBRconcerto3 CTD outfitted with a Seapoint FCDOM sensor for EX/EM = 370/460 nm. FCDOM vertical profiles were averaged with a 7-m moving window. CTD profiles were 1-meter binned.
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Licence Type Open
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Dataset Authors
Dataset Authors 1
Name
Dmitrenko, Igor
Type of Name
Personal
Email
Affiliation
Centre for Earth Observation Science - University of Manitoba
ORCID ID
Dataset Authors 2
Name
Kirillov, Sergei
Type of Name
Personal
Email
Affiliation
Centre for Earth Observation Science - University of Manitoba
ORCID ID
Dataset Authors 3
Name
Capelle, David
Type of Name
Personal
Email
Affiliation
Fisheries and Oceans Canada
ORCID ID
Dataset Authors 4
Name
Mandryk, Rachel
Type of Name
Personal
Email
Affiliation
Fisheries and Oceans Canada
ORCID ID
Contributors
Contributors 1
Name
Role
Email
Affiliation
ORCID ID
Project Data Curator Igor Dmitrenko
Project Data Curator email dmitreni@cc.umanitoba.ca
Project Data Curator Affiliation Centre for Earth Observation Science - University of Manitoba
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Related Resources 1
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Publications 1
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