Danish Coastal Water Eutrophication Indicators from 1980 to 2023

109 Danish coastal waterbodies were monitored from 1980 to 2023 for indicators of eutrophication. The dataset includes trends for dissolved inorganic nitrogen, dissolved inorganic phosphorus, chlorophyll a, light penetration depth, eelgrass main depth limit, a benthic fauna index, and bottom water oxygen concentration. It was authored by Marie Neel Jørgensen and shared under a CC-BY-4.0 license.

Use Cases

• Analyzing long-term trends in nutrient concentrations based on winter DIN and DIP data
• Modeling the relationship between nutrient levels and biological indicators like chlorophyll a and eelgrass depth
• Assessing the spatial and temporal recovery status of coastal ecosystems based on multiple eutrophication indicators
• Evaluating the effectiveness of national nutrient reduction plans on coastal water quality

Strengths

• Covers a 43-year time series from 1980 to 2023
• Includes data from 109 distinct coastal waterbodies
• Tracks seven key indicators of eutrophication as described in the study

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data freshness should be verified as the last update is listed as 2026-05-19

Provenance

Source

figshare, authored by Marie Neel Jørgensen

Collection Method

Likely contains observational monitoring data from Danish coastal waters as part of a study on eutrophication recovery.

Time Range

1980 to 2023

Freshness

Last updated 2026-05-19 08:53:47

Geography

Danish coastal waters (109 waterbodies)