Oceanographic conductivity, temperature, and depth (CTD) data from expedition GEOEO, North of Greenland, 2024 — raw data

Julia Muchowski, Christian Stranne, Johan Nilsson

Conductivity, temperature and depth (CTD) data collected from the Swedish icebreaker Oden during the GEOEO North of Greenland 2024 expedition between August and September 2024.

This dataset contains the raw native data collected with a Sea-Bird SBE 911plus CTD.

The CTD data include high resolution (0.2 m) vertical profiles of the water column properties in terms of conductivity (salinity), temperature, dissolved oxygen, turbidity, fluorescence, and colored dissolved organic matter (CDOM) over a total of 42 casts.

MarineHydrographyGEOEO 2024 expeditionArcticIcebreaker OdenCTDConductivityTemperatureDissolved OxygenTurbidityFluorescenceArctic Ocean

Name

Version

Citation

References

Muchowski J, Stranne C, Nilsson J (2025) Oceanographic conductivity, temperature, and depth (CTD) data from expedition GEOEO, North of Greenland, 2024. Dataset version 1. Bolin Centre Database. https://doi.org/10.17043/oden-geoeo-2024-ctd-1

Data description

This dataset is provided in two folders. Total size ~152 MB.

raw_data

Raw CTD data, as collected with a Sea-Bird SBE 911plus CTD. Each CTD cast includes four files, named as

GE24-[station number]-CTD[cast number].*

The files have the following file endings and content:

• bl Bottle files with information of water samples taken
• hdr Header files
• hex Raw data files
• XMLCON Configuration files

metadata

39 metadata files, using the same naming convention as the raw files. For stations at which two CTD casts were conducted back to back, only one metadata sheet is available. This was the case at stations 6, 14, and 32.

The raw data can be processed with the SBE Data Processing software. A python wrapper (Tunatools) around the SBE software is openly available on Github. Tunatools enables processing of single files or entire folders with raw files.

Comments

Related processed data

Processed data derived from this dataset are made available by Muchowski et al. (2025).

The expedition

Data were collected during the GEOEO North of Greenland 2024 expedition on board the Swedish icebreaker Oden, which was organized by the Swedish Polar Research Secretariat from 5 August through 17 September, 2024.

Project

GEOEO North of Greenland 2024 Expedition

Publisher

Bolin Centre Database

License

Creative Commons Attribution 4.0 International License (CC BY 4.0)

First name

Julia

Last name or organisation

Muchowski

Email address

julia.muchowski@polar.se

Address

Swedish Polar Research Secretariat; c/o Luleå tekniska universitet

Postal code

SE-971 87

City

Luleå

Country

Sweden

GCMD science keyword

Earth science > Oceans

GCMD location

Ocean > Arctic Ocean

Dataset language

English

Begin date

2024-08-08

End date

2024-09-13

DOI

Time