| HY-2A卫星雷达高度计数据的全球统计评价及质量分析 |
| |
| 引用本文： | 彭海龙,林明森,穆博,周武.HY-2A卫星雷达高度计数据的全球统计评价及质量分析[J].海洋学报,2015,37(7):54-66. |
| |
| 作者姓名： | 彭海龙 林明森 穆博 周武 |
| |
| 作者单位： | 1.中国海洋大学 信息科学与工程学院, 山东 青岛 266100;国家卫星海洋应用中心, 北京 100081 |
| |
| 基金项目： | 海洋公益性行业科研专项(201305032);国家国际科技合作专项项目(2014DFA21710). |
| |
| 摘 要： | 自HY-2A卫星发射以来,针对HY-2A卫星雷达高度计产品的交叉定标、真实性检验及质量评估工作一直在持续开展。本文主要以HY-2A卫星高度计第44周期的IGDR产品数据为例,通过使用全球分布图、二维直方图和每日均值统计的方法完成了与Jason-2IGDR产品的比对验证,同时对主要环境校正参数及地球物理产品的数据质量稳定性进行了分析,结果显示高度计产品数据质量较稳定,此外利用HY-2A卫星升降轨交叉点海面高度差、与Jason-2卫星交叉点海面高度差以及沿轨海平面异常数据分析的方法进行了HY-2A卫星高度计观测系统的性能评估,结果显示,HY-2A卫星海面高度精度约为7.48cm,精度接近Jason-2,能满足海洋应用与科学研究的需要。
|
| 关 键 词： | 海洋二号卫星 HY-2A 高度计 全球统计 海平面异常 |
| 收稿时间： | 3/6/2014 12:00:00 AM |
| 修稿时间： | 2014/6/15 0:00:00 |
Global statistical evaluation and performance analysis of HY-2A satellite radar altimeter data |
| |
| Peng Hailong,Lin Mingsen,Mu Bo and Zhou Wu.Global statistical evaluation and performance analysis of HY-2A satellite radar altimeter data[J].Acta Oceanologica Sinica (in Chinese),2015,37(7):54-66. |
| |
| Authors: | Peng Hailong Lin Mingsen Mu Bo and Zhou Wu |
| |
| Institution: | 1.Information Science and Engineering College, Ocean University of China, Qingdao 266100, China;Nation Satellite Ocean Application Service, Beijing 100081, China2.Nation Satellite Ocean Application Service, Beijing 100081, China |
| |
| Abstract: | Since the satellite launched,the cross-calibration,validation and quality assessment for HY-2A satellite radar altimeter product have been ongoing. In this paper,we finish the verification work that HY-2A satellite altimeter 44th cycle IGDR product data was compared with Jason-2 IGDR through global distribution,two-dimensional histogram and the daily average methods. While the main environmental parameters and geophysical product data quality analysis showed that data quality are stable. In addition,the analysis of the SSH differences at crossovers between HY-2A ascending and descending tracks,the SSH differences at HY-2A and Jason-2 and sea Level Anomaly (SLA) along track have been done to evaluate performance of HY-2A satellite altimeter observation system,the results showed that sea surface height accuracy is about 7.48 cm,close to Jason-2. It can meet the needs of marine applications and scientific research. |
| |
| Keywords: | HY-2A altimeter global statistic sea level abnormal |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《海洋学报》浏览原始摘要信息 |
| 点击此处可从《海洋学报》下载免费的PDF全文 |
|
