scholarly journals Identifying Urine Patches on Intensively Managed Grassland Using Aerial Imagery Captured From Remotely Piloted Aircraft Systems

2018 ◽  
Vol 2 ◽  
Author(s):  
Juliette Maire ◽  
Simon Gibson-Poole ◽  
Nicholas Cowan ◽  
Dave S. Reay ◽  
Karl G. Richards ◽  
...  
Keyword(s):  
Aerial Imagery ◽  
Aircraft Systems ◽  
Remotely Piloted Aircraft ◽  
Intensively Managed

scholarly journals Detailed Characterization and Monitoring of a Retrogressive Thaw Slump from Remotely Piloted Aircraft Systems and Identifying Associated Influence on Carbon and Nitrogen Export

2021 ◽  
Vol 13 (2) ◽  
pp. 171
Author(s):  
Kevin W. Turner ◽  
Michelle D. Pearce ◽  
Daniel D. Hughes
Keyword(s):  
Surface Model ◽  
Carbon And Nitrogen ◽  
Aircraft Systems ◽  
Detailed Classification ◽  
Fill Volume ◽  
Remotely Piloted Aircraft ◽  
Total Irradiance ◽  
Retrogressive Thaw Slump ◽  
Rain Events ◽  
Sediment Export

Ice-rich permafrost landscapes are sensitive to ongoing changes in climate. Permafrost retrogressive thaw slumps (RTSs) represent one of the more abrupt and prolonged disturbances, which occur along Arctic river and lake shorelines. These features impact local travel and infrastructure, and there are many questions regarding associated impacts on biogeochemical cycling. Predicting the duration and magnitude of impacts requires that we enhance our knowledge of RTS geomorphological drivers and rates of change. Here we demonstrate the utility of remotely piloted aircraft systems (RPAS) for documenting the volumetric change, associated drivers and potential impacts of the largest active RTS along the Old Crow River in Old Crow Flats, Yukon, Canada. RPAS surveys revealed that 29,174 m3 of sediment was exported during the initial evacuation in June 2016 and an additional 18,845 m3 continued to be exported until June 2019. More sediment export occurred during the warmer 2017 summer that experienced less cumulative rainfall than summer 2018. However, several rain events during 2017 were of higher intensity than during 2018. Overall mean soil organic carbon (SOC) and total nitrogen (TN) within sampled thaw slump sediment was 1.36% and 0.11%, respectively. A combination of multispectral, thermal and irradiance (derived from the RPAS digital surface model) data provided detailed classification of thaw slump floor terrain types including raised dry clay lobes, shaded and relatively stable, and low-lying evacuation-prone sediments. Notably, the path of evacuation-prone sediments extended to a series of ice wedges in the northern headwall, where total irradiance was highest. Using thaw slump floor mean SOC and TN values in conjunction with sediment bulk density and thaw slump fill volume, we estimated that 713 t SOC and 58 t TN were exported to the Old Crow River during the three-year study. Findings showcase the utility of high-resolution RPAS datasets for refining our knowledge of thaw slump geomorphology and associated impacts.

scholarly journals The use of RPAS - Remotely Piloted Aircraft Systems in the topographic mapping for mining

2018 ◽  
Vol 71 (2) ◽  
pp. 281-287 ◽  
Author(s):  
Rodrigo Pereira Lima ◽  
Cleiton Coelho ◽  
Germán Vinueza ◽  
Jean Thiago Grassi ◽  
Luiz Henrique Guimaraes Castiglione
Keyword(s):  
Topographic Mapping ◽  
Aircraft Systems ◽  
Remotely Piloted Aircraft

scholarly journals Risk Assessment of Remotely Piloted Aircraft Systems

2019 ◽  
Vol 49 (1) ◽  
pp. 95-106
Author(s):  
Monika Kardach ◽  
Paweł Fuć ◽  
Marta Galant ◽  
Marta Maciejewska
Keyword(s):  
Risk Assessment ◽  
Human Activity ◽  
National Level ◽  
Original Method ◽  
Assessment Methods ◽  
Safety Issues ◽  
Aircraft Systems ◽  
Remotely Piloted Aircraft ◽  
Operating Instructions ◽  
Intensive Growth

Abstract The intensive growth in the popularity of Remotely Piloted Aircraft Systems (RPAS) used for recreational, sporting and other purposes, may lead to an increase in accidents and incidents involving them. Therefore, it is advisable to raise the awareness of all users, related to safety issues, to harmonize standards and procedures applicable at international and national level. The article presents the legal conditions for unmanned operations and the risk assessment methods used in areas of human activity. On this basis, an original method of risk assessment in unmanned systems was proposed. The method can be part of the operating instructions of the RPAS operator. At the end, final conclusions were drawn up.

Sign in / Sign up

Export Citation Format

Share Document