Hydrographic (CTD) profiles during 4 expeditions from spring to fall in 2019, Mackenzie Delta Region (CA)

Bécu, Guislain; Juhls, Bennet; Oziel, Laurent; Leymarie, Edouard; Matsuoka, Atsushi; Lizotte, Martine; Ferland, Joannie; Babin, Marcel

During Leg 1, the CTD (CTD RBR Maestro) was manually lowered in the water through an ice hole with a velocity of less than 0.3 ms-1 and an acquisition frequency of 6 Hz, yielding a vertical resolution of a few centimetres. During legs 2 to 4, the CTD (CTD RBR Concerto) was installed on a Seabird Scientific optical package frame, which was deployed with a velocity of 0.3 m s-1 and an acquisition frequency of 8 Hz. Only data from downcasts were used and poor quality profiles, that had been affected by ice-covered sensors, were removed. Atmospheric pressure observed at weather stations near the sampling locations (Aklavik, Inuvik, Shingle Point and Tuktoyaktuk) was used to tare the CTD pressure sensors. CTD profiles were smoothed and binned to a regular 0.01 m depth grid.

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Contact

Bécu, Guislain

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Data and Resources

Additional Info

Field Value
Identifier DOI:10.1594/PANGAEA.937567
Project(s) NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation
Institute Takuvik International Research Laboratory (IRL 3376), ULaval – CNRS, Biology department, Laval University, Quebec, Canada
Source https://doi.org/10.1594/PANGAEA.937567
Publication Date 2021-10-26
Version 1.0
Product
Sensor CTD
Files
  1. NunaWP4Mackenzie19 CTD TAB delimited text file
Variables [Units]
  1. Event
  2. Expedition
  3. Latitude
  4. Longitude
  5. Date/Time
  6. Station
  7. Depth water [m]
  8. Temp: Temperature, water [°C] CTD RBR Maestro (Leg 1), CTD RBR Concerto (Leg 2,3,4)
  9. Temp: Temperature, water [°C] Handheldmeter
  10. Sal: Salinity, CTD RBR Maestro (Leg 1), CTD RBR Concerto (Leg 2,3,4)
  11. Sal: Salinity, Handheldmeter
Region Mackenzie Delta Region
Spatial Reference EPSG:4326 WGS 84
Spatial Resolution
Spatial Coverage Latitude 68.267000 to 69.649000, Longitude -138.135160 to -133.031410
Temporal Coverage 2019
Temporal Resolution April - September
Format TXT
Is Supplement To

Juhls, B., Lizotte, M., et al. (2021). Hydrographical, biogeochemical and bio-optical water properties in the Mackenzie Delta Region during 4 expeditions from spring to fall in 2019, https://doi.pangaea.de/10.1594/PANGAEA.937587
Related to

Lizotte, M. Juhls, B. et al. (2023). 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. Earth Syst. Sci. Data, 15, 1617–1653. https://doi.org/10.5194/essd-15-1617-2023

Juhls, B, Matsuoka, A., Lizotte, M. et al. (2022). Seasonal dynamics of dissolved organic matter in the Mackenzie Delta, Canadian Arctic waters: Implications for ocean colour remote sensing. Remote Sensing of Environment, 283,113327. https://doi.org/10.1016/j.rse.2022.113327.

Dataset extent