NSCAT Level 1.7 SDR, Sigma-0 Cells

The NASA Scatterometer (NSCAT) Level 1.7 ocean sigma-0 referenced to 50 km wind vector cells (WVC) contains daily backscatter (sigma-0) data from ascending and descending passes. Rain flagging information is not included. Data is flagged where measurements are either missing, ambiguous, or contaminated by land/sea ice. This is the most up-to-date version, which designates the final phase of calibration, validation and science data processing, which was completed in November of 1998, on behalf of the JPL NSCAT Project; re-processing had only minor impacts on the Level 1.7 data.

美国国家航空航天局散射计（NASA Scatterometer, NSCAT）1.7级海洋sigma-0数据集以50千米风矢量单元（Wind Vector Cells, WVC）为参照基准，包含升轨与降轨过境获取的每日后向散射（sigma-0）数据。该数据集未包含降雨标识信息，已对存在缺失、歧义或受陆地/海冰污染的测量数据进行标记。本版本为当前最新迭代版本，对应由喷气推进实验室（Jet Propulsion Laboratory, JPL）NSCAT项目组于1998年11月完成的校准、验证与科学数据处理最终阶段；此次数据再处理对该1.7级产品仅产生轻微影响。