Kotilainen, Aarno T; Kotilainen, Mia M; Vartti, Vesa-Pekka; Hutri, Kaisa-Leena; Virtasalo, Joonas J (2021): 137Caesium activity content data of seabed surface sediments from the Gulf of Bothnia, northern Baltic Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.938162
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Abstract:
This dataset includes contents of 137Caesium in surface sediments determined for 1-cm sediment slices of 54 short gravity-cores from the Gulf of Bothnia, northern Baltic Sea. The 137Cs activity of untreated samples was measured by gamma spectrometry using an EG&E Ortec ACE™-2K spectrometer with a four-inch NaI/TI detector at the Geological Survey of Finland (GTK), Espoo. Since 2017, the 137Cs activity of sediment samples has been measured for 60 min using a BrightSpec bMCA-USB pulse height analyser coupled to a well-type NaI(Tl) detector at the Geological Survey of Finland. The 137Cs activity contents are presented per wet weight (Bq kg-1). Samples collected and measured over different years from 2001 to 2019 gave 137Cs values representing discrete time frames during the 18-year sampling/measuring interval, and are not fully, directly comparable. Thus, dataset lists also 137Cs activity content values decay corrected to 2021.
Related to:
Kotilainen, Aarno T; Kotilainen, Mia M; Vartti, Vesa-Pekka; Hutri, Kaisa-Leena; Virtasalo, Joonas J (2021): Chernobyl still with us: 137Caesium activity contents in seabed sediments from the Gulf of Bothnia, northern Baltic Sea. Marine Pollution Bulletin, 172, 112924, https://doi.org/10.1016/j.marpolbul.2021.112924
Virtasalo, Joonas J; Österholm, Peter; Kotilainen, Aarno T; Åström, Mats E (2020): Enrichment of trace metals from acid sulfate soils in sediments of the Kvarken Archipelago, eastern Gulf of Bothnia, Baltic Sea. Biogeosciences, 17(23), 6097-6113, https://doi.org/10.5194/bg-17-6097-2020
Funding:
Academy of Finland, grant/award no. 292985: SmartSEA - Gulf of Bothnia as Resource for Sustainable Growth
European Regional Development Fund (ERDF), grant/award no. SEAmBOTH: SEAmless Maps and Management of the northern BOTHnian Bay
Executive Agency for Small and Medium-sized Enterprises (EASME), grant/award no. EASME/EMFF/2018/1.3.1.8 - Lot 1/SI2.811048: EMODnet Geology
Coverage:
Median Latitude: 64.194211 * Median Longitude: 22.644561 * South-bound Latitude: 61.068500 * West-bound Longitude: 19.730200 * North-bound Latitude: 65.744600 * East-bound Longitude: 24.458200
Date/Time Start: 2001-09-28T00:00:00 * Date/Time End: 2019-08-09T00:00:00
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.005 m
Event(s):
44-Ge-02 * Latitude: 64.035800 * Longitude: 22.871200 * Date/Time: 2002-07-23T00:00:00 * Elevation: -41.5 m * Location: Gulf of Bothnia * Method/Device: Gravity corer (GC) * Comment: Sampled with RVKaita
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Kotilainen, Aarno T | |||
| 2 | Identification | ID | Kotilainen, Aarno T | |||
| 3 | Sample ID | Sample ID | Kotilainen, Aarno T | |||
| 4 | DEPTH, sediment/rock | Depth sed | m | Kotilainen, Aarno T | Geocode | |
| 5 | LATITUDE | Latitude | Kotilainen, Aarno T | Geocode | ||
| 6 | LONGITUDE | Longitude | Kotilainen, Aarno T | Geocode | ||
| 7 | Depth, bathymetric | Bathy depth | m | Kotilainen, Aarno T | ||
| 8 | DATE/TIME | Date/Time | Kotilainen, Aarno T | Geocode | ||
| 9 | Vessel | Vessel | Kotilainen, Aarno T | RV | ||
| 10 | Caesium-137 | 137Cs | Bq/kg | Kotilainen, Aarno T | Gamma spectrometry, NaI(Tl) detector | Surface |
| 11 | Caesium-137, decay corrected | 137Cs dec corr | Bq/kg | Kotilainen, Aarno T | Decay correction | Surface: decay corrected to 2021 |
| 12 | Reference/source | Reference | Kotilainen, Aarno T |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
378 data points