Capturing Cold-Air Flow Using Thermal Imaging

We present a thermal imaging field design for climatological studies with an application to microscale cold-air flow analysis. Measurements of microclimatic processes are often limited by a lack of spatial coherence and consequently incomplete information on spatial and temporal patterns in the airf...

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Bibliographic Details
Published in:Boundary-layer meteorology 2015-11, Vol.157 (2), p.321-332
Main Authors: Grudzielanek, A. Martina, Cermak, Jan
Format: Article
Language:English
Subjects:
Air flow
Atmospheric boundary layer
Atmospheric Protection/Air Quality Control/Air Pollution
Atmospheric Sciences
Cameras
Climate science
Earth and Environmental Science
Earth Sciences
Flow characteristics
Meteorology
Notes and Comments
Scientific imaging
Statistical analysis
Temperature
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Summary:We present a thermal imaging field design for climatological studies with an application to microscale cold-air flow analysis. Measurements of microclimatic processes are often limited by a lack of spatial coherence and consequently incomplete information on spatial and temporal patterns in the airflow. We introduce and evaluate an approach for investigating cold-air flow using an infrared camera pointed at a custom-built projection screen. A statistical analysis of a cold-air-flow case study is presented that explores the potential and limitations of the proposed technique. Results indicate good compatibility with traditional methods, while spatial coherence in measurements is achieved. A few examples of additional information obtained from the thermal camera analysis are presented, including analyses of cold-air-flow characteristics.
ISSN:0006-8314
1573-1472
DOI:10.1007/s10546-015-0042-8