Particulate carbon concentrations from research cruises for the Northern Gulf of Alaska (NGA) LTER site, 2018-present

This dataset consists of particulate carbon concentrations obtained during NGA-LTER research cruises conducted in the Gulf of Alaska during spring, summer and fall, starting in 2018. The data were collected to determine whether particulate carbon concentration varies with time (season), location and depth. Total particulate carbon (TPC), particulate organic carbon (POC) and particulate inorganic carbon (PIC) concentrations at 4 depths (10, 30, 50, 75 meters in spring; 0, 10, 20, 40 meters in summer and fall) were calculated. Excel spreadsheets were converted to CSV files for preservation. These data are part of the Northern Gulf of Alaska Long Term Ecological Research (NGA LTER) program (OCE-1656070). 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.

本数据集包含2018年起在阿拉斯加湾开展的NGA-LTER（阿拉斯加湾北部长期生态研究，Northern Gulf of Alaska Long Term Ecological Research）研究航次中，于春、夏、秋三季采集得到的颗粒碳浓度 (particulate carbon concentrations) 数据。本研究旨在探究颗粒碳浓度是否随时间（季节）、采样位置及采样深度发生变化。研究人员计算了4个采样深度下的总颗粒碳 (Total Particulate Carbon, TPC)、颗粒有机碳 (Particulate Organic Carbon, POC) 及颗粒无机碳 (Particulate Inorganic Carbon, PIC) 浓度：春季采样深度为10、30、50、75米，夏季与秋季采样深度为0、10、20、40米。为便于长期保存，已将原始Excel电子表格转换为CSV格式文件。本数据集隶属于阿拉斯加湾北部长期生态研究（NGA-LTER）项目（项目编号：OCE-1656070）。LTER计划是由美国国家科学基金会资助的全国性研究网络，涵盖28个观测站点，聚焦长期及大尺度现象对生态系统的影响。本采样工作额外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溢油赔偿委员会 (Exxon Valdez Oil Spill Trustee Council, EVOS) 通过阿拉斯加海湾观察计划提供的资助。