CALIBRATION COMPAIGNS OF THE HY-2A SATELLITE ALTIMETER SIGNIFICANT WAVE HEIGHT BY A GNSS BUOY
文献类型：会议论文
| 作者 | Xu Xi-yu; Shen Hua; Xu Ke |
| 出版日期 | 2015 |
| 会议名称 | IEEE International Geoscience and Remote Sensing Symposium (IGARSS) |
| 会议日期 | JUL 26-31, 2015 |
| 会议地点 | Milan, ITALY |
| 关键词 | Altimetry calibration GNSS buoy significant wave height |
| 页码 | 3649-3651 |
| 通讯作者 | Xu, XY (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, CAS Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China. |
| 英文摘要 | GNSS buoys are innovative ocean instruments, and can provide calibrations of the sea surface height and significant wave height (SWH) products of satellite altimeters. This paper investigated the principles of the wave retrieval by GNSS buoys, and proposed a method of calibration of altimeter SWH product by GNSS buoys. The error sources in the calibration procedure were analyzed. Ocean calibration campaigns were implemented to measure the SWH at the HY-2 altimeter nadir points, and acquired a SWH bias of +7.92 +/- 5.04 cm using four-parameters retracking algorithm. The SWH bias was +20.37 +/- 12.79 cm base on the HY-2 operational SWH products. The calibration campaigns showed that, GNSS buoys could serve for the satellite altimeter SWH calibration under low sea state condition, and the four-parameters retracking algorithm outperformed the conventional three-parameters retracking algorithm in accuracy and consistency, at least for SWH retrieving. |
| 收录类别 | EI ; CPCI |
| 会议主办者 | IEEE |
| 会议录 | 2015 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
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| 语种 | 英语 |
| ISSN号 | 2153-6996 |
| ISBN号 | 978-1-4799-7929-5 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/5363]  |
| 专题 | 国家空间科学中心_微波遥感部 |
| 推荐引用方式 GB/T 7714 | Xu Xi-yu,Shen Hua,Xu Ke. CALIBRATION COMPAIGNS OF THE HY-2A SATELLITE ALTIMETER SIGNIFICANT WAVE HEIGHT BY A GNSS BUOY[C]. 见:IEEE International Geoscience and Remote Sensing Symposium (IGARSS). Milan, ITALY. JUL 26-31, 2015. |
入库方式： OAI收割
来源：国家空间科学中心
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