Complete Assessment of NGDC Data

这项续期拨款将允许一项雄心勃勃的项目继续进行，该项目将评估国家地球物理数据中心（NGDC）存档的所有正在进行的地球物理数据，这些数据在研究巡航期间的收购投资估计为30至60亿美元。船载数据比卫星数据提供更高的分辨率，但不具备卫星数据提供的全球覆盖。该项目将首次开发工具来评估NGDC存档数据的质量并应用校正。该项目旨在评估正在进行的地球物理数据的质量，并在数据应该一致的轨道沿线和两条船舶轨道的关键交叉点应用校正。这项研究的最终成果将是通用测绘工具的新功能，允许交叉数据的高级分析和NGDC文件的自动处理，包括各种可能错误的评估。

This renewal grant will permit the continuation of an ambitious project to assess all underway geophysical data archived at the National Geophysical Data Center (NGDC), data that represent an estimated $3 to $6 billion investment for acquisition during research cruises. The shipboard data provide higher resolution than satellite data, but do not have the global coverage afforded by the satellite data. For the first time, this project will develop tools to assess the quality of the NGDC archived data and to apply corrections. This project aims to assess the quality of the underway geophysical data and to apply corrections both along-track and at critical crossover points of two shiptracks, where data should agree. The final product of this research will be new capabilities for the Generic Mapping Tools, permitting advanced analysis of crossover data and automatic handling of NGDC files, including various assessments of possible errors.