Assessing the potential capabilities of UAV-Lidar scanners, thermal and multispectral cameras to upscale energy heat fluxes in ICOS stations
Research output: Contribution to conference › Conference abstract for conference › Research › peer-review
Unmanned aerial vehicles (UAVs)-based Light Detection and Ranging (Lidar) scanners, and optical imagery may facilitate a precisely description of atmospheric-surface processes in both high spatial and temporal resolution without being confined to a specific footprint. By monitoring the 3-d structure of a land, the reflected and thermal radiation using the current available technology we aim to evaluate a conceptual approach to infer turbulent heat fluxes over different agricultural fields in Denmark where an Integrated Carbon Observation System (ICOS) Class 1 station data will be utilized to validate the drone-based heat fluxes. Based on preliminary results the objectives of this study are to: i) reliably partition the point cloud data produced by the UAV-Lidar system into bare-earth and vegetation structure; ii) assign the aerodynamic resistance based on the retrieved geometry of the canopy and surface roughness models; iii) calculate the sensible heat flux and available energy using thermal and spectral reflectance maps; iv) estimate the spatial distribution of latent heat flux by applying a surface energy balance model. Mapping the energy fluxes using Lidar scanners, aerial photogrammetry and drones may narrow considerably the spatial and temporal gap in data between ground and space borne/aircraft measurements, thus providing more reliable surface energy budget on large spatial scale, and enabling the application of environmentally sustainable irrigation, fertilization and natural ecosystem restoration practices.
Original language | English |
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Publication date | 2019 |
Number of pages | 1 |
Publication status | Published - 2019 |
Event | 2nd Nordic ICOS Symposium, 24 - 25 October, Gothenburg, Sweden: Sources and Sinks of Greenhouse Gases - Gothenburg, Sweden Duration: 24 Oct 2019 → 25 Oct 2019 http://www.icos-sweden.se/NordicICOSsymp2019.html |
Conference
Conference | 2nd Nordic ICOS Symposium, 24 - 25 October, Gothenburg, Sweden |
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Country | Sweden |
City | Gothenburg |
Period | 24/10/2019 → 25/10/2019 |
Internet address |
Links
- http://www.icos-sweden.se/docs/AnnualWorkshop/2019/Nordic_ICOS_Symposium_2019.pdf
Final published version
ID: 234146767