Temperature and salinity time series measurements from the GAK1 Mooring in the Northern Gulf of Alaska near Seward, AK, 2017-2019, 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 CSV files, with a separate file for each depth and year. Files for each year are grouped in a .zip file. 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北湾GAK1站位锚系全年布放期间，由温盐深仪（CTD）采集的温度与盐度实测数据。年度布放期间，共6台仪器在近似标准深度处开展数据采集工作。数据以CSV格式存储，按不同深度与年份分设独立文件，单年度的全部数据文件将打包为单个.zip压缩文件。该锚系自1998年起每年回收并重新布放；本次收录的实测数据是此前归档的锚系数据集的延续，该数据集曾作为由埃克森·瓦尔迪兹溢油赔偿信托理事会（Exxon Valdez Oil Spill Trustee Council, EVOS）资助的"阿拉斯加海湾观察（Gulf Watch Alaska, GWA）"项目中"环境驱动因子"子项目的组成部分进行归档。而该批此前归档的实测数据，实则延续了自20世纪70年代起至今、在GAK1站位由科考船开展的月度CTD剖面观测项目。本次采样站位为北纬59°50.7′、西经149°28.0′，地处阿拉斯加沿岸流海域，与阿拉斯加北湾内陆架环流系统相连通。本数据集隶属于阿拉斯加北湾长期生态研究（Northern Gulf of Alaska Long Term Ecological Research, NGA LTER）计划。LTER计划是由美国国家科学基金会资助的全国性研究网络，目前在全美设有28个观测站点，聚焦长期、大尺度现象对生态系统的影响。本次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），以及通过"阿拉斯加海湾观察"项目提供资助的埃克森·瓦尔迪兹溢油赔偿信托理事会（Exxon Valdez Oil Spill Trustee Council, EVOS）的额外资金支持。