BOREAS TE-11: Leaf Gas Exchange Measurements

BOREAS TE-11 collected measurements of assimilation and transpiration from boreal vegetation at the OJP site during the 1993 and 1994 growing seasons. The dataset supports efforts to characterize sapflow, gas exchange, and lichen photosynthesis alongside meteorological data. It provides foundational time-series data on plant physiological responses in a boreal forest ecosystem.

Use Cases

• Modeling boreal forest carbon uptake based on assimilation rate measurements.
• Studying plant water use efficiency through paired transpiration and assimilation data.
• Calibrating remote sensing products with ground-truth leaf-level gas exchange observations.
• Analyzing seasonal physiological trends in boreal vegetation across two growing seasons.

Strengths

• Data collection is temporally focused, covering two full growing seasons (1993 and 1994).
• Dataset is part of the larger, well-documented BOREAS campaign, providing context.
• Cross-platform presence (Data.gov, NASA Earthdata) indicates established scientific use.

Limitations

• Column names and data structure are unspecified, hindering immediate analysis.
• Conflicting metadata: last update dates range from 1994 to 2026, obscuring data currency.
• Dataset size and row counts are unknown, making scale difficult to assess.

Provenance

Source

National Aeronautics and Space Administration (NASA), BOREAS TE-11 team.

Collection Method

Field measurements collected at the Old Jack Pine (OJP) site.

Time Range

Growing seasons of 1993 and 1994.

Freshness

Last updated dates conflict: 1994-08-19 (NASA Earthdata) and 2026-03-13 (Data.gov).

Geography

BOREAS OJP site, likely in a boreal forest region (e.g., Canada).