Seasonal, spatial, and temporal variation of Biogenic silica (bSi) and Lithogenic silica (LSi) during MOSAiC and HAVOC expedition 2019/2020

Biogenic silica (bSi) and Lithogenic silica (LSi) concentrations from First Year (FYI) and Second Year (SYI) ice cores and water samples were collected with Ice Corer Kovacs Mark II (9-cm) and CTD AWI-OZE (respectively) aboard RV Polarstern during the MOSAiC expedition (Multidisciplinary drifting Observatory for the Study of Arctic Climate) in 2019 to 2020 for projects MOSAiC and "Ridges – Safe HAVens for ice-associated flora and fauna in a seasonally ice-covered Arctic Ocean" (HAVOC). During MOSAiC and HAVOC, there were 95 events with a total of 750 samples for biogenic silica (bSi) and Lithogenic silica (LSi) concentration. Ice samples (once thawed) and water samples were filtered and kept for silica sequential extractions. First, filters went through a mild alkaline-leachable digestion with sodium carbonate (Na2CO3) to free reactive silica associated with the bSi pool. After filters were neutralized and dried, Hydroflouric Acid (HF) was added for a harsh digestion to release LSi.

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Cite this as

Lemke, Lindsey, Krause, Jeffrey W, Granskog, Mats A, Assmy, Philipp, Hoppe, Clara Jule Marie, Smith, Alexandra (2024). Dataset: Seasonal, spatial, and temporal variation of Biogenic silica (bSi) and Lithogenic silica (LSi) during MOSAiC and HAVOC expedition 2019/2020. https://doi.org/10.1594/PANGAEA.971253

DOI retrieved: 2024

Additional Info

Field Value
Imported on November 29, 2024
Last update November 29, 2024
License CC-BY-4.0
Source https://doi.org/10.1594/PANGAEA.971253
Author Lemke, Lindsey
Given Name Lindsey
Family Name Lemke
More Authors
Krause, Jeffrey W
Granskog, Mats A
Assmy, Philipp
Hoppe, Clara Jule Marie
Smith, Alexandra
Source Creation 2024
Publication Year 2024
Resource Type text/tab-separated-values - filename: MOSAiC_HAVOC_Silica
Subject Areas
Name: Cryosphere

Name: Lithosphere

Related Identifiers
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Identifier: https://doi.org/10.1029/2020GL087877
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Title: Heavy silicon isotopic composition of silicic acid and biogenic silica in Arctic waters over the Beaufort shelf and the Canada Basin
Identifier: https://doi.org/10.1002/2015GB005277
Type: DOI
Relation: References
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Authors: Pickering Rebecca A , Cassarino Lucie , Hendry Katharine R , Wang Xiangli L , Maiti Kanchan , Krause Jeffrey W , Varela Diana E , Brzezinski Mark A , Beucher Charlotte P , Jones Janice L , Giesbrecht Karina E , Lansard Bruno , Mucci Alfonso .