涡流实验：从低空飞机上定向海面粗糙度反演的GNSS-R反射测量法
The Eddy Experiment: GNSS-R speculometry for directional sea-roughness retrieval from low altitude aircraft
摘要：
我们报告的检索方向海面粗糙度，在其完整的方向均方斜率（包括方向和各向同性），从全球导航卫星系统反射（GNSS-R）延迟多普勒地图（DDM）的数据收集在1公里的高度实验飞行。本研究强调利用整个DDM更精确地推断海洋粗糙度方向参数。特别是，我们认为，DDM表现出粗糙度和散射速度的影响。得到的估计进行了分析和比较，并共同位于杰森-1测量，ECMWF数值天气模式输出和光学数据。
英文摘要：
We report on the retrieval of directional sea surface roughness, in terms of its full directional mean square slope (including direction and isotropy), from Global Navigation Satellite System Reflections (GNSS-R) Delay-Doppler-Map (DDM) data collected during an experimental flight at 1 km altitude. This study emphasizes the utilization of the entire DDM to more precisely infer ocean roughness directional parameters. In particular, we argue that the DDM exhibits the impact of both roughness and scatterer velocity. Obtained estimates are analyzed and compared to co-located Jason-1 measurements, ECMWF numerical weather model outputs and optical data.
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