Matsuoka, Atsushi; Juhls, Bennet; Bécu, Guislain; Oziel, Laurent; Leymarie, Edouard; Lizotte, Martine; Ferland, Joannie; Béguin, Marine; Laberge-Carignan, Audrey; Guilmette, Caroline; Maury, Juliette; Hilborn, Andrea; Tisserand, Lucas; Devred, Emmanuel; Doxaran, David; Bossé-Demers, Thomas; Babin, Marcel (2021): Colored dissolved organic matter absorption (aCDOM) and spectal slopes (S) in the surface water of the Mackenzie Delta Region during 4 expeditions from spring to fall in 2019 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.937580, In: Juhls, Bennet; Lizotte, Martine; Matsuoka, Atsushi; Mével, Gaëlle; Bécu, Guislain; Overduin, Pier Paul; Devred, Emmanuel; Doxaran, David; Ferland, Joannie; Forget, Marie-Hélène; Hilborn, Andrea; Leymarie, Edouard; Maury, Juliette; Oziel, Laurent; Tisserand, Lucas; Miles, Dillon; Anikina, David Obie James; Guilmette, Caroline; Béguin, Marine; Couture, Raoul-Marie; Bossé-Demers, Thomas; Laberge-Carignan, Audrey; Chaillou, Gwénaëlle; Bélanger, Simon; Bruyant, Flavienne; Babin, Marcel (2021): Hydrographical, biogeochemical and biooptical water properties in the Mackenzie Delta Region during 4 expeditions from spring to fall in 2019 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.937587
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Abstract:
Measurement of CDOM absorption was conducted from a water sample within 12 hours of collection using an UltraPath liquid waveguide system (World Precision Instruments, Inc.) over the wavelengths ranging from 200 to 722 nm (see also Matsuoka et al. (2012; doi:10.5194/bg-9-925-2012) for details). To minimize temperature effects, both the sample and the reference water were kept at 4 °C for at least 30 minutes prior to analysis. We followed the International Ocean Colour Coordinating Group (IOCCG) Ocean Optics and Biogeochemistry CDOM protocols (Mannino et al., 2019 (see further details)) with a few modifications: 1) reference water with salinity ±2 relative to the sample was prepared on site a few hours before sample analysis to minimize the effect of difference in refractive index between sample and reference; 2) aCDOM(λ) was measured in flow mode, meaning, a measurement was made while water was running using a peristaltic pump (Lefering et al., 2017; doi:10.1364/AO.56.006357). While the use of a long optical cell provides a good better signal particularly withinin the visible spectral domain essential to SOCRS, it necessarily suffers from light saturation in the UV domain. To overcome this issue, an optimal length of a cell (i.e. 10 cm or 200 cm) was selected following an empirical relationship between optical density observed at 350 and 443 nm based on Matsuoka et al. (2012; doi:10.5194/bg-9-925-2012). For each sample, measurements were done in triplicates of which each was visually inspected for quality control. CDOM measurements were fitted using following equation: a_CDOM (λ)=a_CDOM (λ_0 )*e^(-S(λ-λ_0)), where S is the spectral slope of aCDOM(λ) between 350 and 500 nm (Babin et al., 2003; doi:10.1029/2001JC000882 and Matsuoka et al., 2012; doi:10.5194/bg-9-925-2012).
Related to:
Juhls, Bennet; Matsuoka, Atsushi; Lizotte, Martine; Mével, Gaëlle; Bécu, Guislain; Overduin, Pier Paul; El-Kassar, Jan; Devred, Emmanuel; Doxaran, David; Ferland, Joannie; Forget, Marie-Hélène; Hilborn, Andrea; Leymarie, Edouard; Maury, Juliette; Oziel, Laurent; Tisserand, Lucas; Babin, Marcel (accepted): Seasonal dynamics of dissolved organic matter of the Mackenzie Delta, Canadian Arctic waters: implications for ocean colour remote sensing.
Lizotte, Martine; Juhls, Bennet; Matsuoka, Atsushi; Massicotte, Philippe; Mével, Gaëlle; Anikina, David Obie James; Antonova, Sofia; Bécu, Guislain; Béguin, Marine; Bélanger, Simon; Bossé-Demers, Thomas; Bröder, Lisa; Bruyant, Flavienne; Chaillou, Gwénaëlle; Comte, Jérôme; Couture, Raoul-Marie; Devred, Emmanuel; Deslongchamps, Gabrièle; Dezutter, Thibaud; Dillon, Miles; Doxaran, David; Eglinton, Timothy Ian; Flamand, Aude; Fell, Frank; Ferland, Joannie; Forget, Marie-Hélène; Fritz, Michael; Gordon, Thomas J; Guilmette, Caroline; Hilborn, Andrea; Hussherr, Rachel; Irish, Charlotte; Joux, Fabien; Kipp, Lauren; Laberge-Carignan, Audrey; Lantuit, Hugues; Leymarie, Edouard; Mannino, Antonio; Maury, Juliette; Overduin, Pier Paul; Oziel, Laurent; Stedmon, Colin A; Thomas, Crystal S; Tisserand, Lucas; Tremblay, Jean-Éric; Vonk, Jorien E; Whalen, Dustin; Babin, Marcel (in review): Nunataryuk field campaigns: Understanding the origin and fate of terrestrial organic matter in the coastal waters of the Mackenzie Delta region. Earth System Science Data (ESSD) preprint, https://doi.org/10.5194/essd-2022-163
Further details:
Mannino, Antonio; Novak, Michael G; Nelson, Norman; Belz, Mathias; Berthon, Jean-François; Blough, Neil V; Boss, Emmanuel; Bricaud, Annick; Chaves, Joaquin E; Del Castillo, Carlos; Del Vecchio, Rossana; D'Sa, Eurico J; Freeman, Scott; Matsuoka, Atsushi; Miller, Richard L; Neeley, Aimee; Röttgers, Rüdiger; Tzortziou, Maria; Werdell, P Jeremy (2019): Measurement protocol of absorption by chromophoric dissolved organic matter (CDOM) and other dissolved materials. In: Inherent Optical Property Measurements and Protocols: Absorption Coefficient, Mannino, A. and Novak, M. G. (eds.), IOCCG Ocean Optics and Biogeochemistry Protocols for Satellite Ocean Colour Sensor Validation, IOCCG, Dartmouth, NS, Canada., https://ioccg.org/wp-content/uploads/2019/10/cdom_abs_protocol_public_draft-19oct-2019-sm.pdf
Project(s):
Funding:
Horizon 2020 (H2020), grant/award no. 773421: NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation
Coverage:
Median Latitude: 69.101251 * Median Longitude: -134.991317 * South-bound Latitude: 68.264050 * West-bound Longitude: -138.135120 * North-bound Latitude: 69.648520 * East-bound Longitude: -133.031410
Date/Time Start: 2019-04-20T15:34:00 * Date/Time End: 2019-09-08T12:00:00
Minimum DEPTH, water: 0.30 m * Maximum DEPTH, water: 1.66 m
Event(s):
NunaWP4Mackenzie19_1_STN0a (1_STN0a) * Latitude: 68.504830 * Longitude: -134.147960 * Date/Time: 2019-04-20T15:34:00 * Location: Mackenzie Delta, Canada * Method/Device: Multiple investigations (MULT)
Comment:
Empty cells = NA
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Juhls, Bennet | |||
| 2 | Cruise/expedition | Expedition | Juhls, Bennet | |||
| 3 | LATITUDE | Latitude | Juhls, Bennet | Geocode | ||
| 4 | LONGITUDE | Longitude | Juhls, Bennet | Geocode | ||
| 5 | DATE/TIME | Date/Time | Juhls, Bennet | Geocode | ||
| 6 | Station label | Station | Juhls, Bennet | |||
| 7 | DEPTH, water | Depth water | m | Juhls, Bennet | Geocode | |
| 8 | Absorption coefficient, colored dissolved organic matter at 254 nm | aCDOM_254 | 1/m | Matsuoka, Atsushi | UltraPath, World Precision Instruments, Inc. | see Matsuoka et al. (2012) and (2017; doi:10.1016/j.rse.2017.08.009) |
| 9 | Absorption coefficient, colored dissolved organic matter at 350 nm | aCDOM_350 | 1/m | Matsuoka, Atsushi | UltraPath, World Precision Instruments, Inc. | see Matsuoka et al. (2012) and (2017; doi:10.1016/j.rse.2017.08.009) |
| 10 | Absorption coefficient, colored dissolved organic matter at 375 nm | aCDOM_375 | 1/m | Matsuoka, Atsushi | UltraPath, World Precision Instruments, Inc. | see Matsuoka et al. (2012) and (2017; doi:10.1016/j.rse.2017.08.009) |
| 11 | Absorption coefficient, colored dissolved organic matter at 443 nm | aCDOM_443 | 1/m | Matsuoka, Atsushi | UltraPath, World Precision Instruments, Inc. | see Matsuoka et al. (2012) and (2017; doi:10.1016/j.rse.2017.08.009) |
| 12 | Spectral slope of colored dissolved organic matter absorption, 350-500 nm | S350-500 | 1/nm | Matsuoka, Atsushi | UltraPath, World Precision Instruments, Inc. | see Matsuoka et al. (2012) and (2017; doi:10.1016/j.rse.2017.08.009) |
Change history:
2022-03-22T06:56:52 – Dataset title update of request from the author.
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
877 data points