A Comparison of UAV Derived Thermal Infrared Observations over Forested Environments

With advances to UAV technology, in particular with regards to digital image sensors, applications of visible and thermal infrared imagery applied to forest ecosystems are increasing. In this case study methods for mapping thermal infrared temperature within hardwood and pine recreational study sites are employed. Absolute forest ecosystem surface temperature values were calculated from UAV obtained digital imagery to compare microclimate habitat within two hiking trails on the Stephen. F. Austin State University Campus.  Results show that hardwood study site had a mean temperature that was significantly lower than that of the pine study site, whereas there was no difference between trail area and the entire study site. It indicates that UAV digital thermal infrared data can be used for recreation management purposes.  Recreational foresters, with access to thermal infrared UAV data, can make more informed management decisions about the forest resources within their management jurisdiction.