Journal of Infrared and Millimeter Waves, Volume. 42, Issue 6, 815(2023)
Novel local calibration optimization from soil mid-infrared spectral library
Figures & Tables(8)
Fig. 1. 677 site locations of with MIR spectra and SOC in the Global Soil Spectral Library
Fig. 3. Average absorbance with 95% confidence intervals of SSL （a，c） and Test （b，d）
Fig. 4. The capacity （a），continuum-removal （b） and model accuracy （c，d） for all rows of the distance matrix
Fig. 5. The capacity （a），continuum-removal （b） and model accuracy （c，d） for the first 200 rows of the distance matrix
Fig. 6. The PCA score plot from five Locals （red dots） projected onto Test （blue dots） by MD
Table 1. Characteristic statistics of SOC content (%)
View tableView in ArticleTable 1. Characteristic statistics of SOC content (%)
数据集 样本数 最小值 第1四分位数 中值 均值 第3四分位数 最大值 标准差 SSL 3167 0.00 0.21 0.47 1.19 1.18 60.00 2.75 Test 588 0.00 0.24 0.55 1.21 1.29 24.00 2.03
Table 2. The comparison of prediction accuracy from Local0, Local1 and Global
View tableView in ArticleTable 2. The comparison of prediction accuracy from Local0, Local1 and Global
数据集 Local0 Local1 Global R2 RMSE 库容 R2 RMSE 库容 R2 RMSE 库容 ED 0.708 1.105% 333 0.733 1.060% 926 0.704 MD 0.752 1.135% 262 0.764 1.021% 430 1.108% CD 0.715 1.086% 338 0.730 1.066% 1038 3167
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Jia-Li SHEN, Song-Chao CHEN, Yong-Sheng HONG, Shuo LI. Novel local calibration optimization from soil mid-infrared spectral library[J]. Journal of Infrared and Millimeter Waves, 2023, 42(6): 815
Paper Information
Category: Research Articles
Received: Aug. 25, 2022
Accepted: --
Published Online: Dec. 26, 2023
The Author Email: Shuo LI (shuoguoguo@zju.edu.cn)
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