H10734B: NOS Hydrographic Survey , Northern Stephens Passage, Alaska, 1997-04-21

The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe...美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration，NOAA）拥有法定职权，可收集水文数据以支撑为保障[原文未完整表述]的海图编制工作。