Forward-Looking Infrared Cameras for Micrometeorological Applications within Vineyards
We apply the principles of atmospheric surface layer dynamics within a vineyard canopy to demonstrate the use of forward-looking infrared cameras measuring surface brightness temperature (spectrum bandwidth of 7.5 to 14 μm) at a relatively high temporal rate of 10 s. The temporal surface brightness...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2016-09-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/16/9/1518 |
| _version_ | 1798003572619608064 |
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| author | Marwan Katurji Peyman Zawar-Reza |
| author_facet | Marwan Katurji Peyman Zawar-Reza |
| author_sort | Marwan Katurji |
| collection | DOAJ |
| description | We apply the principles of atmospheric surface layer dynamics within a vineyard canopy to demonstrate the use of forward-looking infrared cameras measuring surface brightness temperature (spectrum bandwidth of 7.5 to 14 μm) at a relatively high temporal rate of 10 s. The temporal surface brightness signal over a few hours of the stable nighttime boundary layer, intermittently interrupted by periods of turbulent heat flux surges, was shown to be related to the observed meteorological measurements by an in situ eddy-covariance system, and reflected the above-canopy wind variability. The infrared raster images were collected and the resultant self-organized spatial cluster provided the meteorological context when compared to in situ data. The spatial brightness temperature pattern was explained in terms of the presence or absence of nighttime cloud cover and down-welling of long-wave radiation and the canopy turbulent heat flux. Time sequential thermography as demonstrated in this research provides positive evidence behind the application of thermal infrared cameras in the domain of micrometeorology, and to enhance our spatial understanding of turbulent eddy interactions with the surface. |
| first_indexed | 2024-04-11T12:09:50Z |
| format | Article |
| id | doaj.art-a65d8b4f81eb4e4c90c7f50810da741e |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T12:09:50Z |
| publishDate | 2016-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-a65d8b4f81eb4e4c90c7f50810da741e2022-12-22T04:24:38ZengMDPI AGSensors1424-82202016-09-01169151810.3390/s16091518s16091518Forward-Looking Infrared Cameras for Micrometeorological Applications within VineyardsMarwan Katurji0Peyman Zawar-Reza1Center for Atmopsheric Research, University of Canterbury, Christchurch 8140, New ZealandCenter for Atmopsheric Research, University of Canterbury, Christchurch 8140, New ZealandWe apply the principles of atmospheric surface layer dynamics within a vineyard canopy to demonstrate the use of forward-looking infrared cameras measuring surface brightness temperature (spectrum bandwidth of 7.5 to 14 μm) at a relatively high temporal rate of 10 s. The temporal surface brightness signal over a few hours of the stable nighttime boundary layer, intermittently interrupted by periods of turbulent heat flux surges, was shown to be related to the observed meteorological measurements by an in situ eddy-covariance system, and reflected the above-canopy wind variability. The infrared raster images were collected and the resultant self-organized spatial cluster provided the meteorological context when compared to in situ data. The spatial brightness temperature pattern was explained in terms of the presence or absence of nighttime cloud cover and down-welling of long-wave radiation and the canopy turbulent heat flux. Time sequential thermography as demonstrated in this research provides positive evidence behind the application of thermal infrared cameras in the domain of micrometeorology, and to enhance our spatial understanding of turbulent eddy interactions with the surface.http://www.mdpi.com/1424-8220/16/9/1518time sequential thermographymicrometeorologyself-organizing mapssurface energy balanceturbulencemicroclimateinfrared camera |
| spellingShingle | Marwan Katurji Peyman Zawar-Reza Forward-Looking Infrared Cameras for Micrometeorological Applications within Vineyards Sensors time sequential thermography micrometeorology self-organizing maps surface energy balance turbulence microclimate infrared camera |
| title | Forward-Looking Infrared Cameras for Micrometeorological Applications within Vineyards |
| title_full | Forward-Looking Infrared Cameras for Micrometeorological Applications within Vineyards |
| title_fullStr | Forward-Looking Infrared Cameras for Micrometeorological Applications within Vineyards |
| title_full_unstemmed | Forward-Looking Infrared Cameras for Micrometeorological Applications within Vineyards |
| title_short | Forward-Looking Infrared Cameras for Micrometeorological Applications within Vineyards |
| title_sort | forward looking infrared cameras for micrometeorological applications within vineyards |
| topic | time sequential thermography micrometeorology self-organizing maps surface energy balance turbulence microclimate infrared camera |
| url | http://www.mdpi.com/1424-8220/16/9/1518 |
| work_keys_str_mv | AT marwankaturji forwardlookinginfraredcamerasformicrometeorologicalapplicationswithinvineyards AT peymanzawarreza forwardlookinginfraredcamerasformicrometeorologicalapplicationswithinvineyards |