Estimation of Snow Depth From GLONASS SNR and Phase-Based Multipath Reflectometry
文献类型：期刊论文
| 作者 | Qian, Xiaodong1,2; Jin, Shuanggen3,4 |
| 刊名 | IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
 |
| 出版日期 | 2016-10-01 |
| 卷号 | 9期号:10页码:4817-4823 |
| 关键词 | Global Navigation Satellite Systems-reflectometry (Gnss-r) Glonass Global Positioning System (Gps) Signal-to-noise Ratio (Snr) Snow Depth |
| ISSN号 | 1939-1404 |
| DOI | 10.1109/JSTARS.2016.2560763 |
| 英文摘要 | Monitoring snow variations can know how fast the snow is melted and how much water is frozen on the Earth. However, traditional ground techniques have some limitations to monitor snow variations due to high cost. Recently, global navigation satellite systems-reflectometry (GNSS-R) has been developed and used to sense snow variations, while previous studies mostly used global positioning system (GPS) observations to estimate snow depth. In this paper, snow depth is estimated from GLONASS signal-to-noise ratio (SNR) and phase-based multipath reflectometry at one IGS GANP station in Slovakia, which is compared with in situ observations. For two snow seasons, snow depth estimations from GLONASS SNR1 and SNR2 data have a good agreement with in situ results with correlations of 0.94 and 0.94 in 2012 and 0.92 and 0.89 in 2013, respectively. Compared to GPS results, snow depth results from GLONASS are almost similar, but have some differences due to low coverage of less GLONASS satellites. However, results from GLONASS geometry-free linear combination (L4) are not pretty much, which needs more works to improve it in the future. Combined GPS and GLONASS observations have no significant improvement on the precision, but improve the spatial resolution because of more satellites. |
| WOS关键词 | HYDROLOGICAL MODELS ; REFLECTED SIGNALS ; GPS SIGNALS |
| WOS研究方向 | Engineering ; Physical Geography ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000387454400027 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/24106]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Jin, Shuanggen |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Planetary Sci, Shanghai 200030, Peoples R China 4.Bulent Ecevit Univ, Dept Geomat Engn, TR-67100 Zonguldak, Turkey |
| 推荐引用方式 GB/T 7714 | Qian, Xiaodong,Jin, Shuanggen. Estimation of Snow Depth From GLONASS SNR and Phase-Based Multipath Reflectometry[J]. IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,2016,9(10):4817-4823. |
| APA | Qian, Xiaodong,&Jin, Shuanggen.(2016).Estimation of Snow Depth From GLONASS SNR and Phase-Based Multipath Reflectometry.IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,9(10),4817-4823. |
| MLA | Qian, Xiaodong,et al."Estimation of Snow Depth From GLONASS SNR and Phase-Based Multipath Reflectometry".IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING 9.10(2016):4817-4823. |
入库方式： OAI收割
来源：紫金山天文台
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