86.6 to 96.9 teragrams of inorganic nitrogen were deposited annually globally from 1984 to 2016, showing a 12% increase. This dataset provides wet and dry deposition estimates on a 2°×2.5° grid for 12 individual years across four decades, simulated using the GEOS-Chem Chemical Transport Model. It was created by Daniel Ackerman to improve understanding of short-term human impacts on the global nitrogen cycle.
Use Cases
- Analyzing regional trends in nitrogen deposition based on the provided decadal-scale time series.
- Modeling ecosystem responses to nitrogen inputs based on the wet and dry deposition estimates.
- Contextualizing local field studies within global nitrogen cycle patterns based on the spatially explicit estimates.
- Investigating shifts in the chemical forms of deposited nitrogen based on the reported proportion of reduced forms.
Strengths
- Data covers 12 individual years across four decades (1984-2016), providing decadal-scale temporal resolution.
- Global spatial coverage at a 2°×2.5° grid resolution.
- Includes separate estimates for wet and dry deposition of inorganic nitrogen.
- Quantifies a global increase in deposition from 86.6 to 96.9 TgN yr⁻¹ and a shift in chemical forms.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count and file size are unknown, which may limit suitability assessment.
- Last update date is unknown; freshness unverified.
Provenance
- Source
- Daniel Ackerman via paperswithcode.
- Collection Method
- Simulated using the GEOS-Chem Chemical Transport Model.
- Time Range
- 1984 to 2016 (covering years 1984-1986, 1994-1996, 2004-2006, 2014-2016).
- Geography
- Global.