Temperature and salinity time series measurements from the GAK1 Mooring in the Northern Gulf of Alaska near Seward, AK, 2017-2024, NGA LTER.

The data set contains measurements of temperature and salinity made by CTD instruments during year-long deployments of a mooring at the GAK1 site in the Northern Gulf of Alaska. Six instruments collect data at roughly standard depths during the annual deployments. Data are presented as annual CSV files containing data from all instruments on the mooring in the each deployment year. Also included in this dataset are .zip files containing .dat files from each instrument, each of which includes data from the instrument prefaced with multiple header rows describing instrument details and deployment information. This mooring has been recovered and redeployed annually since 1998; these particular measurements are a continuation of a mooring data set that was previously archived as part of the Environmental Drivers component of the Gulf Watch Alaska (GWA) program funded by the Exxon Valdez Oil Spill Trustee Council. Those measurements, in turn, extend a program of monthly CTD casts performed from ships at the GAK1 location from the 1970s to the current day. The sampling occurs at 59° 50.7' N, 149° 28.0' W and is located within the Alaska Coastal Current and is connected with the inner Gulf of Alaska shelf circulation. These data are part of the Northern Gulf of Alaska Long Term Ecological Research (NGA LTER) program. The LTER program is a National Science Foundation–funded network of 28 sites nationwide that focus on the influence of long-term and large-scale phenomenon on ecosystems. Additional funding for sampling is provided by the North Pacific Research Board (NPRB), the Alaska Ocean Observing System (AOOS), and the Exxon Valdez Oil Spill Trustee Council (EVOS) via the Gulf Watch Alaska program.

本数据集收录了阿拉斯加湾北部GAK1站位系泊阵列为期一年布放期间，由温盐深仪（CTD）采集的温度与盐度观测数据。在该年度布放周期内，6台仪器于标准预设深度开展数据采集工作。数据集以年度逗号分隔值（CSV）文件形式存储，每份文件包含对应布放年度内系泊阵列全部仪器的观测数据。本数据集还附带各仪器原始数据的压缩包（.zip格式），每个压缩包内含对应仪器的.dat格式数据文件，文件头部包含多行仪器详情与布放信息的标注行。该系泊阵列自1998年起每年完成回收与重新布放；本次收录的观测数据是此前归档系泊数据集的延续，该数据集原作为埃克森瓦尔迪兹石油泄漏赔偿委员会（Exxon Valdez Oil Spill Trustee Council，EVOS）资助的阿拉斯加海湾观察（Gulf Watch Alaska, GWA）计划的环境驱动因子组分完成归档。前述观测数据可追溯至20世纪70年代起，在GAK1站位由科考船开展的月度CTD剖面测量计划，并延续至今。本次采样站位位于59°50.7' N，149°28.0' W，地处阿拉斯加沿岸流海域，与阿拉斯加湾内陆架环流系统相连。本数据属于阿拉斯加湾北部长期生态研究（Northern Gulf of Alaska Long Term Ecological Research, NGA LTER）计划的一部分。该长期生态研究计划是由美国国家科学基金会资助的全国性28个观测站点组成的科研网络，旨在探究长期与大尺度现象对生态系统的影响。本采样工作还获得了北太平洋研究委员会（North Pacific Research Board, NPRB）、阿拉斯加海洋观测系统（Alaska Ocean Observing System, AOOS）以及埃克森瓦尔迪兹石油泄漏赔偿委员会（EVOS）通过阿拉斯加海湾观察计划提供的额外资助。