Environmental Variability in the Central North Pacific Near Hawaii

研究人员将检查北太平洋环流的数据，以确定环流正常变化的程度，以及夏威夷周围地区典型环流的程度。对历史数据的初步分析表明，在夏威夷附近的上层海洋中，在夏威夷以北约750公里的Climax站的长横断面上和多年来所看到的特征结构可能存在差异。目前尚不清楚这些初步确定的差异是由于岛屿质量效应，还是它们是大尺度空间梯度的一部分。正在收集和分析水文、营养和氧气数据，以确定夏威夷附近和阿罗哈站的结构在多大程度上是典型的北太平洋中央环流，以及所确定的任何差异是否可能对联合地面观测系统具有重要意义。

Data from the North Pacific Gyre will be examined to determine the degree of variability normal to the gyre, and the extent to which the area around Hawaii is typical of the gyre. A preliminary analysis of historical data suggests that differences may exist in upper ocean near Hawaii with respect to the characteristic structure seen on long transects and over many years at the Climax Station, about 750 km north of Hawaii. It is not known whether these tentatively-identified differences are due to island mass effects, or if they are part of a large-scale spatial gradient. Hydrographic, nutrient and oxygen data are being gathered and analyzed in order to determine the extent to which the structure near Hawaii and at station Aloha is typical of the North Pacific central gyre, and whether any differences identified are likely to be important in the context of JGOFS.