Hydroacoustic Data to Support Embayment Monitoring in Long Island Sound, Mystic and Norwalk Embayments, Connecticut, 2023

This data release includes six months of hydroacoustic data collected during the 2023 water year, starting October 1, 2022 and ending April 11, 2023. Data were collected at four stations that are part of a discrete and continuous monitoring project in embayments on Long Island Sound to support nutrient management activities in Connecticut. The data were collected by the U.S. Geological Survey (USGS) in cooperation with the Connecticut Department of Energy and Environmental Protection. The data were collected using acoustic doppler current profilers (ADCPs) sampling 134 parameters every six minutes. Recorded values above the water surface were removed from files using an R script. The ADCPs were deployed at upstream and downstream locations in the Mystic and Norwalk embayments. For the Mystic River embayment, the upstream station is the Mystic River at Mystic Seaport near Mystic, CT (412141071580200), USGS streamgage and the downstream station is the Mystic River at Ram Island Yacht Club at Noank, CT (411940071590300), USGS streamgage. For the Norwalk embayment, the upstream station is the Norwalk River at Norwalk Aquarium near South Norwalk, CT (410606073245700), USGS streamgage and the downstream station is the Norwalk Harbor at the Cove Marina near East Norwalk, CT (410502073236000), USGS streamgage. Data are provided for each station in a ‘zip’ file and each zip file includes a description for the station’s ADCP setup.

本数据集发布包含2023水文年度（2022年10月1日至2023年4月11日）采集的六个月时长的水声数据。数据采集于四个站点，这些站点隶属于长岛湾沿岸海湾离散与连续监测项目，旨在为康涅狄格州的营养盐管理工作提供支撑。本数据集由美国地质调查局（U.S. Geological Survey, USGS）联合康涅狄格州能源与环境保护部完成采集。数据采集采用声学多普勒流速剖面仪（Acoustic Doppler Current Profilers, ADCP），每6分钟采集134项参数。数据处理阶段，研究人员使用R脚本剔除了数据文件中水面以上的无效记录值。ADCP布设点位覆盖米斯蒂克（Mystic）与诺沃克（Norwalk）两处海湾的上下游监测断面。针对米斯蒂克海湾，上游监测站为康涅狄格州米斯蒂克市附近米斯蒂克船港处的米斯蒂克河USGS水文站（编号：412141071580200），下游监测站为康涅狄格州诺安克市拉姆岛游艇俱乐部处的米斯蒂克河USGS水文站（编号：411940071590300）。针对诺沃克海湾，上游监测站为康涅狄格州南诺沃克附近诺沃克水族馆处的诺沃克河USGS水文站（编号：410606073245700），下游监测站为康涅狄格州东诺沃克附近科弗码头处的诺沃克港USGS水文站（编号：410502073236000）。各站点的原始数据均以zip压缩包形式提供，每个压缩包均附带对应站点ADCP的布设配置说明文档。

搜集汇总

背景与挑战

背景概述

该数据集包含2022年10月至2023年4月在长岛海峡Mystic和Norwalk海湾收集的六个月的声学数据，用于支持康涅狄格州的营养物管理。数据由美国地质调查局与地方机构合作，使用声学多普勒流速剖面仪在四个站点每六分钟采样134个参数，包括上游和下游位置，并以zip文件形式提供，包含站点设置描述。