Hydrochemical Fluctuations in the Lena River Delta, 1980-2007

Hydrochemical data from the Lena River mouth area, collected by The State Service of Supervision between 1980 and 2007. The data shows spatial and temporal changes in pollutant and nutrient compound concentrations across three key locations: Kusur, Habarova, and Tiksi. The analysis indicates the formation of an anthropogenically modified natural background where concentrations exceed established limits.

Use Cases

• Modeling long-term trends in nutrient concentrations based on the 27-year time series.
• Comparing pollution levels across distinct geographical zones (river boundary, delta head, bay) mentioned in the description.
• Assessing the formation of anthropogenically modified environmental baselines based on exceedances of established concentration limits.
• Analyzing spatial-temporal variability of biogenic compounds and priority pollutants in a delta ecosystem.

Strengths

• Data covers a 27-year period (1980-2007), enabling long-term trend analysis.
• Spatial coverage includes three distinct monitoring locations within the Lena River delta system.

Limitations

• Last updated 2007-12 31 23:59:59.999000; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file formats are unknown, which may limit suitability assessment.

Provenance

Source

The State Service of Supervision, via NASA Earthdata and organization SCIOPS.

Collection Method

Long-standing hydrochemical monitoring and analysis.

Time Range

1980-2007

Freshness

Last updated 2007-12-31 23:59:59.999000

Geography

Lena River mouth area, specifically villages of Kusur, Habarova, and Tiksi (Neelov Bay).