SiB4 Modeled Carbonyl Sulfide and Carbon Fluxes by Plant Type

NASA's Simple Biosphere Model version 4.2 provides hourly 0.5-degree gridded outputs for the high-latitude Northern Hemisphere (53N to 90N). The dataset includes fluxes for gross primary productivity, respiration, and carbonyl sulfide uptake by vegetation and soil, segmented by plant functional type. Model outputs cover the years 2000 to 2020 and are stored in NetCDF4 format.

Use Cases

• Analyzing spatial and temporal patterns of carbonyl sulfide (COS) vegetation and soil uptake using the gridded COS flux variables.
• Studying the relationship between gross primary productivity (GPP) and stomatal conductance of water across different plant functional types (PFTs).
• Investigating intra-canopy CO2 gradients using variables for partial pressure in the canopy air space, leaf surface, interior, and chloroplast.
• Model validation by comparing simulated respiration and GPP fluxes against independent observational datasets.
• Examining high-latitude ecosystem carbon and sulfur cycling from 2000 to 2020 using the coordinated time-series of multiple fluxes.

Strengths

• Data provides a 21-year time series (2000-2020) for analyzing long-term trends.
• Output is spatially explicit at 0.5-degree resolution and segmented by plant functional type (PFT).
• Includes a coordinated set of carbon and carbonyl sulfide flux variables, enabling multi-tracer studies.
• Presence on multiple authoritative platforms (Data.gov and NASA Earthdata) signals importance and curation.

Limitations

• Spatial coverage is limited to the high-latitude Northern Hemisphere (53N to 90N).
• Conflicting last updated dates exist between sources (2026-03-12 on Data.gov vs. 2020-12-31 on NASA Earthdata).
• Specific row counts, file sizes, and detailed column names are not provided in the available metadata.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Output from the Simple Biosphere Model (SiB) version 4.2.

Time Range

2000 to 2020

Freshness

2026-03-12 21:45:11.897879

Geography

53N to 90N latitude, 180W to IIIE longitude