Long-term observations on the Bering Sea shelf: biophysical mooring data from site 2

Biophysical measurements have been made at mooring Site 2 (56.88N, 164.03W) almost continuously since 1995, providing the longest near continuous time-series of biophysical variables on the Bering Sea shelf. A series of moorings have also been deployed at Site 4 (57.85N, 168.87W) since 1995, providing almost six years of more sporadic data. In addition, another series of moorings have been deployed at Site 5 (59.90N, 171.70W) from 2004 to present. Added to the biophysical data collected by the moorings, water property measurements have been made at locations around the moorings and along the 70-m transect since 1995. Such long-term observations provide critical data that allow characterizations of interannual variability, quantification of regime shifts and climate change. This project partially funds continued measurements at Site 2 with water samples and plankton samples around the mooring site and along the monitoring line.

自1995年以来，科研人员在Site 2锚系观测站（56.88°N，164.03°W）开展了近乎连续的生物物理观测，获取了白令海陆架上时长最长的近连续生物物理变量时间序列数据集。自1995年起，科研团队还在Site 4锚系观测站（57.85°N，168.87°W）布设了多组锚系观测设备，累计获取近6年的间断式观测数据。此外，自2004年至今，科研人员在Site 5锚系观测站（59.90°N，171.70°W）布设了另一组锚系观测设备。除锚系观测采集的生物物理数据外，自1995年起，团队还在锚站周边海域及70米断面沿线开展了水团属性测量工作。此类长期观测数据可为年际变率特征表征、气候态转移与气候变化的定量分析提供关键支撑。本项目为Site 2锚系观测站的持续观测提供部分经费支持，同时开展锚站周边及监测断面沿线的水样与浮游生物样本采集工作。