Performance Evaluation of Volumetric Water Content and Relative Permittivity Models
In recent years many models have been proposed for measuring soil water content (θ) based on the permittivity (ε) value. Permittivity is one of the properties used to determine θ in measurements using the electromagnetic method. This method is widely used due to quite substantial differences in valu...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2013/421762 |
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| author | Muhammad Mukhlisin Almushfi Saputra |
| author_facet | Muhammad Mukhlisin Almushfi Saputra |
| author_sort | Muhammad Mukhlisin |
| collection | DOAJ |
| description | In recent years many models have been proposed for measuring soil water content (θ) based on the permittivity (ε) value. Permittivity is one of the properties used to determine θ in measurements using the electromagnetic method. This method is widely used due to quite substantial differences in values of ε for air, soil, and water, as it allows the θ value to be measured accurately. The performance of six proposed models with one parameter (i.e., permittivity) and five proposed models with two or more parameters (i.e., permittivity, porosity, and dry bulk density of soil) is discussed and evaluated. Secondary data obtained from previous studies are used for comparison to calibrate and evaluate the models. The results show that the models with one parameter proposed by Roth et al. (1992) and Topp et al. (1980) have the greatest R2 data errors, while for the model with two parameters, the model proposed by Malicki et al. (1996) agrees very well with the data compared with other models. |
| format | Article |
| id | doaj-art-db8c28d7f35644dca5cdf673fe62ed2c |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-db8c28d7f35644dca5cdf673fe62ed2c2025-08-20T03:24:20ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/421762421762Performance Evaluation of Volumetric Water Content and Relative Permittivity ModelsMuhammad Mukhlisin0Almushfi Saputra1Department of Civil and Structural Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaDepartment of Civil and Structural Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaIn recent years many models have been proposed for measuring soil water content (θ) based on the permittivity (ε) value. Permittivity is one of the properties used to determine θ in measurements using the electromagnetic method. This method is widely used due to quite substantial differences in values of ε for air, soil, and water, as it allows the θ value to be measured accurately. The performance of six proposed models with one parameter (i.e., permittivity) and five proposed models with two or more parameters (i.e., permittivity, porosity, and dry bulk density of soil) is discussed and evaluated. Secondary data obtained from previous studies are used for comparison to calibrate and evaluate the models. The results show that the models with one parameter proposed by Roth et al. (1992) and Topp et al. (1980) have the greatest R2 data errors, while for the model with two parameters, the model proposed by Malicki et al. (1996) agrees very well with the data compared with other models.http://dx.doi.org/10.1155/2013/421762 |
| spellingShingle | Muhammad Mukhlisin Almushfi Saputra Performance Evaluation of Volumetric Water Content and Relative Permittivity Models The Scientific World Journal |
| title | Performance Evaluation of Volumetric Water Content and Relative Permittivity Models |
| title_full | Performance Evaluation of Volumetric Water Content and Relative Permittivity Models |
| title_fullStr | Performance Evaluation of Volumetric Water Content and Relative Permittivity Models |
| title_full_unstemmed | Performance Evaluation of Volumetric Water Content and Relative Permittivity Models |
| title_short | Performance Evaluation of Volumetric Water Content and Relative Permittivity Models |
| title_sort | performance evaluation of volumetric water content and relative permittivity models |
| url | http://dx.doi.org/10.1155/2013/421762 |
| work_keys_str_mv | AT muhammadmukhlisin performanceevaluationofvolumetricwatercontentandrelativepermittivitymodels AT almushfisaputra performanceevaluationofvolumetricwatercontentandrelativepermittivitymodels |