| 講演名 | 2009-10-09 Application of GPR ground wave to monitor seasonal variations of surface moisture contents at a kanto loam field site , |
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| 抄録(英) | In the present study GPR ground wave was used to monitor the spatial distribution of surface moisture content at a kanto loam field site. To map the soil moisture variations at spatiotemporal scale, measurements were conducted on a regular interval of 2～3 days per week. To obtain more concise relation between the surface soil physical properties from the GPR, the study site was divided into two zones with and without vegetation to examine the influence of soil conditions respectively. Results revealed that GPR ground wave data were sensitive with the upper surface soil conditions as well as seasonal variations. Significant increase in dielectric constant, K, values was observed from the vegetated zone, while minor influence was found from the bare zone after a day after precipitation campaign. The cause of minor difference in the Zone-II was probably concerned with the percolation, runoff, evaporation, and the soil physical properties of the specific zone. Additionally, the depth influence based on Sperl (1999) and Pallavi et al. (2009) was found most accurate among other depth models. The above study signifies that the GPR ground wave can be used as a principal tool for spatial mapping of moisture content with the known sampling volume for Kanto loam. |
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| キーワード(英) | GPR / ground wave / dielectric constant / depth of influence |
| 資料番号 | SANE2009-80 |
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| 研究会情報 | |
| 研究会 | SANE |
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| 開催期間 | 2009/10/1(から1日開催) |
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| 申込み研究会 | Space, Aeronautical and Navigational Electronics (SANE) |
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| 本文の言語 | ENG |
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| タイトル（英） | Application of GPR ground wave to monitor seasonal variations of surface moisture contents at a kanto loam field site |
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| キーワード(1)（和/英） | / GPR |
| 第 1 著者 氏名（和/英） | / Baby PALLAVI |
| 第 1 著者 所属（和/英） | United Graduate School of Tokyo University of Agriculture and Technology |
| 発表年月日 | 2009-10-09 |
| 資料番号 | SANE2009-80 |
| 巻番号（vol） | vol.109 |
| 号番号（no） | 219 |
| ページ範囲 | pp.- |
| ページ数 | 5 |
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