Determination of the Optimal Mounting Depth for Calculating Effective Soil Temperature at L-Band: Maqu Case
文献类型：期刊论文
| 作者 | Lv, Shaoning1,2; Zeng, Yijian1; Wen, Jun2; Zheng, Donghai1; Su, Zhongbo1 |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2016-06-01 |
| 卷号 | 8期号:6页码:19 |
| ISSN号 | 2072-4292 |
| 关键词 | microwave remote sensing soil effective temperature soil moisture Maqu Network Tibetan Plateau |
| DOI | 10.3390/rs8060476 |
| 通讯作者 | Lv, Shaoning(s.lv@utwente.nl) |
| 英文摘要 | Effective soil temperature T-eff is one of the basic parameters in passive microwave remote sensing of soil moisture. At present, dedicated satellite soil moisture monitoring missions use the L-band as the operating frequency. However, T-eff at the L-band is strongly affected by soil moisture and temperature profiles. Recently, a two-layer scheme and a corresponding multilayer form have been developed to accommodate such influences. In this study, the soil moisture/temperature data collected and simulated by the Noah land surface model across the Maqu Network are used to verify the newly developed schemes. There are two key findings. Firstly, the new two-layer scheme is able to assess which site provides relatively higher accuracy when estimating T-eff. It is found that, on average, nearly 20% of the T-eff signal cannot be captured by the Maqu Network, in the currently assumed common installation configuration. This knowledge is important, since the spatial averaged brightness temperature (a function of T-eff) is used to determine soil moisture. Secondly, the developed method has made it possible to identify that the optimal mounting depths for the observation pair are 5 cm and 20 cm for calculating T-eff at the center station in the Maqu Network. It has been suggested that the newly developed method can provide an objective way to configure an optimal soil moisture/temperature network and improve the representativeness of the existing networks regarding the calculation of T-eff. |
| 收录类别 | SCI |
| WOS关键词 | MICROWAVE EMISSION ; MOISTURE PRODUCTS ; TIBETAN PLATEAU ; MODEL ; SATELLITE ; VALIDATION ; SMOS ; RADIOMETRY ; ALGORITHM |
| WOS研究方向 | Remote Sensing |
| WOS类目 | Remote Sensing |
| 语种 | 英语 |
| 出版者 | MDPI AG |
| WOS记录号 | WOS:000379985300035 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557472 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Lv, Shaoning |
| 作者单位 | 1.Univ Twente, Fac Geoinformat Sci & Earth Observat ITC, Dept Water Resources, NL-7500 AE Enschede, Netherlands 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Land Surface Proc & Climate Change Cold &, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lv, Shaoning,Zeng, Yijian,Wen, Jun,et al. Determination of the Optimal Mounting Depth for Calculating Effective Soil Temperature at L-Band: Maqu Case[J]. REMOTE SENSING,2016,8(6):19. |
| APA | Lv, Shaoning,Zeng, Yijian,Wen, Jun,Zheng, Donghai,&Su, Zhongbo.(2016).Determination of the Optimal Mounting Depth for Calculating Effective Soil Temperature at L-Band: Maqu Case.REMOTE SENSING,8(6),19. |
| MLA | Lv, Shaoning,et al."Determination of the Optimal Mounting Depth for Calculating Effective Soil Temperature at L-Band: Maqu Case".REMOTE SENSING 8.6(2016):19. |
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来源：寒区旱区环境与工程研究所
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