Integration of Drone and Satellite Imagery Improves Agricultural Management Agility
Effective agricultural management hinges upon timely decision-making. Here, we evaluated whether drone and satellite imagery could improve real-time and remote monitoring of pasture management. Using unmanned aerial systems (UAS), we quantified grassland biomass through changes in sward height pre-...
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MDPI AG
2024-12-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/16/24/4688 |
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| author | Michael Gbenga Ogungbuyi Caroline Mohammed Andrew M. Fischer Darren Turner Jason Whitehead Matthew Tom Harrison |
| author_facet | Michael Gbenga Ogungbuyi Caroline Mohammed Andrew M. Fischer Darren Turner Jason Whitehead Matthew Tom Harrison |
| author_sort | Michael Gbenga Ogungbuyi |
| collection | DOAJ |
| description | Effective agricultural management hinges upon timely decision-making. Here, we evaluated whether drone and satellite imagery could improve real-time and remote monitoring of pasture management. Using unmanned aerial systems (UAS), we quantified grassland biomass through changes in sward height pre- and post-grazing by sheep. As optical spectral data from Sentinel-2 satellite imagery is often hindered by cloud contamination, we assessed whether machine learning could help improve the accuracy of pasture biomass prognostics. The calibration of UAS biomass using field measurements from sward height change through 3D photogrammetry resulted in an improved regression (R<sup>2</sup> = 0.75, RMSE = 1240 kg DM/ha, and MAE = 980 kg DM/ha) compared with using the same field measurements with random forest-machine learning and Sentinel-2 imagery (R<sup>2</sup> = 0.56, RMSE = 2140 kg DM/ha, and MAE = 1585 kg DM/ha). The standard error of the mean (SEM) for the field biomass, derived from UAS-measured sward height changes, was 1240 kg DM/ha. When UAS data were integrated with the Sentinel-2-random forest model, SEM reduced from 1642 kg DM/ha to 1473 kg DM/ha, demonstrating that integration of UAS data improved model accuracy. We show that modelled biomass from 3D photogrammetry has significantly higher accuracy than that predicted from Sentinel-2 imagery with random forest modelling (S2-RF). Our study demonstrates that timely, accurate quantification of pasture biomass is conducive to improved decision-making agility, and that coupling of UAS with satellite imagery may improve the accuracy and timeliness of agricultural biomass prognostics. |
| format | Article |
| id | doaj-art-90eb8343f0264176b1ededa9e2579fbb |
| institution | OA Journals |
| issn | 2072-4292 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj-art-90eb8343f0264176b1ededa9e2579fbb2025-08-20T02:01:21ZengMDPI AGRemote Sensing2072-42922024-12-011624468810.3390/rs16244688Integration of Drone and Satellite Imagery Improves Agricultural Management AgilityMichael Gbenga Ogungbuyi0Caroline Mohammed1Andrew M. Fischer2Darren Turner3Jason Whitehead4Matthew Tom Harrison5Tasmanian Institute of Agriculture, University of Tasmania, Launceston, TAS 7248, AustraliaTasmanian Institute of Agriculture, University of Tasmania, Launceston, TAS 7248, AustraliaInstitute for Marine and Antarctic Studies, University of Tasmania, Launceston, TAS 7248, AustraliaSchool of Geography, Planning, and Spatial Sciences, College of Sciences and Engineering, University of Tasmania, Private Bag 78, Hobart, TAS 7001, AustraliaCape Herbert Pty Ltd., Blackstone Heights, TAS 7250, AustraliaTasmanian Institute of Agriculture, University of Tasmania, Launceston, TAS 7248, AustraliaEffective agricultural management hinges upon timely decision-making. Here, we evaluated whether drone and satellite imagery could improve real-time and remote monitoring of pasture management. Using unmanned aerial systems (UAS), we quantified grassland biomass through changes in sward height pre- and post-grazing by sheep. As optical spectral data from Sentinel-2 satellite imagery is often hindered by cloud contamination, we assessed whether machine learning could help improve the accuracy of pasture biomass prognostics. The calibration of UAS biomass using field measurements from sward height change through 3D photogrammetry resulted in an improved regression (R<sup>2</sup> = 0.75, RMSE = 1240 kg DM/ha, and MAE = 980 kg DM/ha) compared with using the same field measurements with random forest-machine learning and Sentinel-2 imagery (R<sup>2</sup> = 0.56, RMSE = 2140 kg DM/ha, and MAE = 1585 kg DM/ha). The standard error of the mean (SEM) for the field biomass, derived from UAS-measured sward height changes, was 1240 kg DM/ha. When UAS data were integrated with the Sentinel-2-random forest model, SEM reduced from 1642 kg DM/ha to 1473 kg DM/ha, demonstrating that integration of UAS data improved model accuracy. We show that modelled biomass from 3D photogrammetry has significantly higher accuracy than that predicted from Sentinel-2 imagery with random forest modelling (S2-RF). Our study demonstrates that timely, accurate quantification of pasture biomass is conducive to improved decision-making agility, and that coupling of UAS with satellite imagery may improve the accuracy and timeliness of agricultural biomass prognostics.https://www.mdpi.com/2072-4292/16/24/4688machine learningartificial intelligencedronephotogrammetrypasturegrassland |
| spellingShingle | Michael Gbenga Ogungbuyi Caroline Mohammed Andrew M. Fischer Darren Turner Jason Whitehead Matthew Tom Harrison Integration of Drone and Satellite Imagery Improves Agricultural Management Agility Remote Sensing machine learning artificial intelligence drone photogrammetry pasture grassland |
| title | Integration of Drone and Satellite Imagery Improves Agricultural Management Agility |
| title_full | Integration of Drone and Satellite Imagery Improves Agricultural Management Agility |
| title_fullStr | Integration of Drone and Satellite Imagery Improves Agricultural Management Agility |
| title_full_unstemmed | Integration of Drone and Satellite Imagery Improves Agricultural Management Agility |
| title_short | Integration of Drone and Satellite Imagery Improves Agricultural Management Agility |
| title_sort | integration of drone and satellite imagery improves agricultural management agility |
| topic | machine learning artificial intelligence drone photogrammetry pasture grassland |
| url | https://www.mdpi.com/2072-4292/16/24/4688 |
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