Lena River Water Chemistry and Carbon Data from April 2018 to April 2019

High-frequency measurements of temperature, electrical conductivity, dissolved organic carbon (DOC), spectral CDOM absorption, stable water isotopes, and major ions in Lena River water from April 2018 to April 2019. The dataset was collected by Bennet Juhls of the Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung as part of a new monitoring program based at Samoylov Island. It provides a baseline for assessing intra-annual trends and future changes in Arctic river biogeochemistry.

Use Cases

• Modeling dissolved organic carbon (DOC) export fluxes to the Arctic Ocean based on high-frequency sampling.
• Identifying seasonal drivers of DOM concentration and composition using optical indices.
• Establishing a baseline for long-term monitoring of Arctic river water chemistry against climate change.

Strengths

• High-frequency sampling throughout a full year, facilitating flux calculations independent of load models.
• First-year baseline data from a planned long-term monitoring program at Samoylov Island.
• Includes multiple water parameters like DOC, CDOM, stable isotopes, and major ions.

Limitations

• Row count and column-level documentation are unknown, limiting suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung

Collection Method

High-frequency sampling program at the Research Station Samoylov Island.

Time Range

April 2018 to April 2019

Geography

Lena River, Arctic