Ammonia Concentration and Meteorological Data from Sri Lankan Forest Experiment 2023-2024

Queensberry, Sri Lanka hosts this dataset of meteorological conditions, ammonia concentration, and modeled deposition rates from a controlled NH3 enhancement experiment in a tropical forest. It contains continuous 15-minute interval data on NH3 release, air concentration, and micrometeorology from 2023 to 2024, supporting the study of vegetation tolerance thresholds. The work was conducted by the Environmental Information Data Centre with support from the UKRI GCRF South Asian Nitrogen Hub.

Use Cases

• Model monthly NH3 deposition rates using the bi-directional resistance model based on measured NH3 concentrations and micrometeorology.
• Analyze the relationship between NH3 release events and subsequent NH3 concentration measurements under suitable wind conditions.
• Study the effects of controlled NH3 enhancement on tropical vegetation by correlating meteorological data from the tower with deposition rates.
• Extend the analysis of the 2022 dataset to perform longer-term trend analysis on NH3 deposition in a tropical forest environment.

Strengths

• Provides high-temporal-resolution data recorded at 15-minute intervals for continuous analysis.
• Focuses on a specific, controlled field experiment for NH3 enhancement in a tropical forest, a less-studied environment.
• Extends a prior 2022 dataset, enabling longitudinal study of ammonia deposition effects.

Limitations

• The dataset's spatial scope is limited to a single experimental site in central Sri Lanka, limiting geographic generalizability.
• Deposition rates are modeled outputs rather than directly measured, introducing potential model-dependent uncertainty.
• Sample data and specific column structure are unavailable, complicating initial assessment of data usability.

Provenance

Source

Environmental Information Data Centre

Collection Method

Data from a controlled ammonia (NH3) enhancement field experiment, with meteorological measurements from a tower, NH3 release under specific wind conditions, and monthly passive sampler concentration measurements.

Time Range

2023 – 2024

Freshness

Data covers the period 2023-2024 and was last updated in the catalog on March 11, 2026.

Geography

Experimental site in a tropical forest in Queensberry, central Sri Lanka.