Forward-Looking Infrared Cameras for Micrometeorological Applications within Vineyards

Area of Science:

• Micrometeorology
• Atmospheric Science
• Agricultural Science

Background:

• Understanding atmospheric surface layer dynamics is crucial for agricultural applications.
• Vineyard canopies create complex microclimates influencing heat and moisture exchange.
• Traditional meteorological measurements may lack spatial resolution for canopy-level processes.

Purpose of the Study:

• To demonstrate the application of thermal infrared (TIR) cameras for studying vineyard micrometeorology.
• To correlate TIR-derived surface brightness temperature with in situ meteorological data.
• To enhance the spatial understanding of turbulent heat flux interactions within vineyard canopies.

Main Methods:

• Utilized forward-looking infrared cameras (7.5–14 μm bandwidth) at a 10-second temporal resolution.
• Collected infrared raster images and compared spatial patterns with in situ eddy-covariance data.
• Analyzed temporal surface brightness temperature signals during nighttime boundary layer conditions.

Main Results:

• Surface brightness temperature variations correlated with meteorological measurements and above-canopy wind.
• Spatial patterns in thermal images reflected cloud cover, long-wave radiation, and canopy turbulent heat flux.
• Self-organized spatial clusters in thermal data provided meteorological context.

Conclusions:

• Time-sequential thermography using TIR cameras is effective for micrometeorological research.
• TIR imaging offers enhanced spatial understanding of turbulent eddy interactions with vineyard surfaces.
• This approach provides valuable data for optimizing vineyard management and understanding plant-atmosphere interactions.