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| Hauptseite > Publikationsdatenbank > Linking electromagnetic induction data to soil properties at field scales aided by neural network clustering > print |
| Hauptseite > Publikationsdatenbank > Linking electromagnetic induction data to soil properties at field scales aided by neural network clustering > print |
| 001 | 1021940 | ||
| 005 | 20250204113757.0 | ||
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| 100 | 1 | _ | |a O'Leary, Dave |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Linking electromagnetic induction data to soil properties at field scales aided by neural network clustering |
| 260 | _ | _ | |a Lausanne |c 2024 |b Frontiers Media |
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| 520 | _ | _ | |a The mapping of soil properties, such as soil texture, at the field scale is important in the context of national agricultural planning/policy and precision agriculture. Electromagnetic Induction (EMI) surveys are commonly used to measure soil apparent electrical conductivity and can provide valuable insights into such subsurface properties. Multi-receiver or multi-frequency instruments provide a vertical distribution of apparent conductivity beneath the instrument, while the mobility of such instruments allows for spatial coverage. Clustering is the grouping together of similar multidimensional data, such as the processed EMI data over a field. A neural network clustering process, where the number of clusters can be objectively determined, results in a set of one-dimensional apparent electrical conductivity cluster centers, which are representative of the entire threedimensional dataset. These cluster centers are used to guide inversions of apparent conductivity data to give an estimate of the true electrical conductivity distribution at a site. The method is applied to two sites and the results demonstrate a correlation between (true) electrical conductivity with sampled soil texture (sampled prior to the EMI surveys) which is superior to correlations where no clustering is included. The method has the potential to be developed further, with the aim of improving the prediction of soil properties at cluster scale, such as texture, from EMI data. A particularly important conclusion from this initial study is that EMI data should be acquired prior to a focused soil sampling campaign to calibrate the electrical conductivitysoil property correlations. |
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| 536 | _ | _ | |a DFG project 357874777 - FOR 2694: Large-Scale and High-Resolution Mapping of Soil Moisture on Field and Catchment Scales - Boosted by Cosmic-Ray Neutrons (357874777) |0 G:(GEPRIS)357874777 |c 357874777 |x 1 |
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| 700 | 1 | _ | |a Daly, Eve |0 P:(DE-HGF)0 |b 4 |e Corresponding author |
| 773 | _ | _ | |a 10.3389/fsoil.2024.1346028 |0 PERI:(DE-600)3099984-4 |p 1346028 |t Frontiers in soil science |v 4 |y 2024 |x 2673-8619 |
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