NFI4b data from the Swiss Federal Research Institute WSL tracks stemwood volume changes for trees above 12 cm dbh. The dataset includes negative values resulting from statistical corrections for bias in small sample sizes. It was published online in 2014 and updated on the NASA EarthData platform in 2018.
Use Cases
- Modeling forest carbon stock changes based on stemwood volume dynamics.
- Analyzing tree mortality rates between inventory periods.
- Calibrating forest growth models using bias-corrected volume estimates.
- Studying statistical correction impacts on small-sample forest data.
Strengths
- Data originates from the Fourth National Forest Inventory (NFI4b) conducted by the Swiss Federal Research Institute WSL.
- Includes methodological notes on statistical corrections for bias.
- Last updated on the platform in 2018.
Limitations
- Description metadata is limited; actual data quality requires manual inspection after download.
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
Provenance
- Source
- Swiss Federal Research Institute WSL, via ENVIDAT.
- Collection Method
- National forest inventory field measurements.
- Time Range
- Inventory period 2009-2013.
- Geography
- Switzerland.