BOREAS TGB-08: Photosynthetic Rates in Boreal Forest Trees

BOREAS TGB-08 data contains photosynthetic rate measurements from mature Jack Pine and Black Spruce stands in the Southern Study Area of the BOREAS region. The dataset was collected to investigate controls over non-methane hydrocarbon (NMHC) fluxes from boreal forest tree species. Measurements cover the period from 24-May-1994 to 19-Sep-1994 at the SSA Old Jack Pine and Old Black Spruce tower-flux locations.

Use Cases

• Modeling biosphere-atmosphere exchange of non-methane hydrocarbons based on photosynthetic rate measurements.
• Comparing physiological responses of mature Jack Pine versus Black Spruce stands in a boreal environment.
• Calibrating or validating ecosystem models for the BOREAS Southern Study Area using site-specific photosynthetic data.
• Studying seasonal dynamics of photosynthesis in boreal forests during the 1994 growing season.

Strengths

• Data originates from the NASA-led BOREAS program, a major international field campaign.
• Provides specific site characteristics, including tree ages (80-155 years) and heights (10-15 m).
• Covers a defined temporal range (24-May-1994 to 19-Sep-1994) for two distinct, mature forest sites.

Limitations

• Column names and data structure are not specified in the available metadata.
• Conflicting 'last updated' dates (1994 vs. 2026) suggest potential metadata inconsistency across platforms.
• The exact data volume (row count, file size) is unknown.

Provenance

Source

National Aeronautics and Space Administration (NASA), TGB-08 team.

Collection Method

Field measurements collected at tower-flux locations.

Time Range

1994-05-24 to 1994-09-19

Freshness

Last updated metadata dates conflict: 1994-09-19 (nasa_earthdata) and 2026-03-13 (datagov).

Geography

BOREAS Southern Study Area (SSA), specifically the SSA Old Jack Pine (OJP) and Old Black Spruce (OBS) sites.