Annapolis County Water Quality Data

The Centre for Marine Applied Research’s (CMAR) Coastal Monitoring Program provides high resolution data on ocean variables from around the coast of Nova Scotia. The program was initiated by the Nova Scotia Department of Fisheries and Aquaculture in the early 1990s. In 2019, CMAR assumed responsibility for the program and expanded its scope and mandate. Through the Water Quality Branch of the program, CMAR collects temperature, dissolved oxygen, and salinity data using sensors deployed on “sensor strings”. A sensor string typically consists of a line anchored to the sea floor by an acoustic release and suspended by a sub-surface buoy, with sensors attached at various depths below the surface (as measured at low tide). Alternatively, a string may be attached to surface moorings, including floating docks, buoys, and equipment. Sensor strings are deployed for several months, and data are measured every 1 minute to 1 hour. Sensors are retrieved for data offload by triggering the acoustic release when applicable, by directly removing from surface moorings, or occasionally by divers or grappling methods. Automated Quality Control tests have been applied to the data to identify outlying and unexpected observations. The results of these tests are summarized in the “qc_flag” columns of the dataset. Each data point is assigned a flag value of “Pass”, “Suspect/Of Interest”, “Fail”, or “Not Evaluated”. Observations flagged as “Pass” passed all tests and can be included in analyses. Dissolved oxygen observations flagged as “Suspect/Of Interest” likely indicate biofouling signals and should be excluded from analysis or used with extreme caution. Observations for other variables flagged as “Suspect/Of Interest” should be reviewed before being included in analyses. Observations flagged as “Fail” should be excluded from most analyses. Some tests cannot be applied to certain observations, which will be flagged as “Not Evaluated”. These observations can typically be included in analyses. Flags should be used as a guide only, and data users are responsible for evaluating the quality of the data prior to use in any analysis. For more information about the Quality Control tests, visit the CMAR Data Governance website (https://dempsey-cmar.github.io/cmp-data-governance/pages/cmp_about.html). The Coastal Monitoring Program Water Quality data is organized by county. These datasets are very large, typically exceeding the number of rows that can be viewed in Excel. CMAR recommends filtering the data to the waterbody, station, depth, quality control flag, and/or time period of interest before exporting. A chart derived from the dataset also allows for interactive filtering and export (https://data.novascotia.ca/d/a3qb-nf5k). The "Nova Scotia Water Quality Data: Station Locations" dataset on this Portal shows additional locations with available Water Quality data collected through CMAR’s Coastal Monitoring Program (https://data.novascotia.ca/Nature-and-Environment/Coastal-Monitoring-Program-Station-Locations/cjfb-f4d4). Summary reports by county are available on the CMAR website (https://cmar.ca/coastal-monitoring-program/). Data can also be downloaded from the ERDDAP server through the Canadian Integrated Ocean Observing System (CIOOS) platform (https://catalogue.cioosatlantic.ca/dataset?q=cmar). Data collection and retrieval are ongoing. The datasets and reports may be revised pending ongoing data collection and analyses. If you have accessed any Coastal Monitoring Program data, CMAR would appreciate your feedback: https://docs.google.com/forms/d/e/1FAIpQLSe3TD6umrsVVKnQL13VVMJIpckCi2ctONJsgN7_g-4c-tKTuw/viewform. Please acknowledge the Centre for Marine Applied Research in any published material that uses this data. Contact [e-mail] for more information.
cdm_data_type=TimeSeries
cdm_timeseries_variables=waterbody,station,sensor_type,sensor_serial_number
contributor_name=Centre for Marine Applied Research (CMAR)
contributor_role=owner
Conventions=COARDS, CF-1.6, ACDD-1.3
Easternmost_Easting=-65.64477
featureType=TimeSeries
geospatial_lat_max=44.67825
geospatial_lat_min=44.63417
geospatial_lat_units=degrees_north
geospatial_lon_max=-65.64477
geospatial_lon_min=-65.71193
geospatial_lon_units=degrees_east
geospatial_vertical_max=6.0
geospatial_vertical_min=0.5
geospatial_vertical_positive=down
geospatial_vertical_units=m
infoUrl=https://cmar.ca/coastal-monitoring-program/
institution=Centre for Marine Applied Research (CMAR)
instrument=aquameasure-670367,hobo-20820380,aquameasure-670381,vr2ar-547089,vr2ar-547090,aquameasure-670380,aquameasure-675011,hobo-20291428,aquameasure-680322,hobo-20330413,aquameasure-670356,hobo-21082889,vr2ar-547094,aquameasure-671014,aquameasure-671020,hobo-21152416
Northernmost_Northing=44.67825
sourceUrl=(local files)
Southernmost_Northing=44.63417
standard_name_vocabulary=CF Standard Name Table v55
subsetVariables=waterbody, station, sensor_type, sensor_serial_number,lease,string_configuration,qc_flag_dissolved_oxygen,qc_flag_salinity,qc_flag_sensor_depth_measured,qc_flag_temperature,depth_crosscheck_flag
time_coverage_end=2023-05-24T17:23:45Z
time_coverage_start=2020-06-11T19:15:00Z
Westernmost_Easting=-65.71193

新斯科舍海洋应用研究中心（CMAR）的沿海监测计划提供了关于新斯科舍沿海地区海洋变量的高分辨率数据。该计划始于20世纪90年代初，由新斯科舍省渔业和水产养殖局发起。2019年，CMAR承担了该计划的责任，并扩大了其范围和职责。通过该计划的水质部门，CMAR利用部署在“传感器链”上的传感器收集温度、溶解氧和盐度数据。传感器链通常由固定在海底的声学释放器和通过水下浮标悬挂的缆绳组成，传感器附着在水面以下不同深度的位置（以低潮时测量的为准）。传感器链可能连接到表面系泊设施，包括浮船坞、浮标和设备。传感器链部署数月，数据每1分钟至1小时测量一次。在适用的情况下，通过触发声学释放、直接从表面系泊设施中移除或偶尔通过潜水员或抓取方法来回收传感器进行数据下载。已对数据进行自动质量控制测试，以识别异常和意外的观测值。这些测试的结果总结在数据集的“qc_flag”列中。每个数据点都被分配了“通过”、“可疑/感兴趣”、“失败”或“未评估”的标志值。标记为“通过”的观测值通过了所有测试，可以包含在分析中。标记为“可疑/感兴趣”的溶解氧观测值可能表明生物污垢信号，应从分析中排除或极端谨慎地使用。标记为“可疑/感兴趣”的其他变量的观测值在包含在分析之前应进行审查。标记为“失败”的观测值应从大多数分析中排除。某些测试不能应用于某些观测值，这些观测值将标记为“未评估”。这些观测值通常可以包含在分析中。标志仅应作为指导，数据使用者负责在使用任何分析之前评估数据的质量。有关质量控制测试的更多信息，请访问CMAR数据治理网站（https://dempsey-cmar.github.io/cmp-data-governance/pages/cmp_about.html）。沿海监测计划水质数据按县组织。这些数据集非常大，通常超过Excel可查看的行数。CMAR建议在导出之前过滤到感兴趣的水体、站点、深度、质量控制标志和时间段。从数据集中衍生的图表还允许进行交互式过滤和导出（https://data.novascotia.ca/d/a3qb-nf5k）。本门户上的“新斯科舍水质数据：站点位置”数据集显示了通过CMAR沿海监测计划收集的可用水质数据的额外位置（https://data.novascotia.ca/Nature-and-Environment/Coastal-Monitoring-Program-Station-Locations/cjfb-f4d4）。县级行政区的总结报告可在CMAR网站上获取（https://cmar.ca/coastal-monitoring-program/）。数据还可以通过加拿大综合海洋观测系统（CIOOS）平台上的ERDDAP服务器下载（https://catalogue.cioosatlantic.ca/dataset?q=cmar）。数据收集和检索正在进行中。数据集和报告可能会根据持续的数据收集和分析进行修订。如果您已访问任何沿海监测计划数据，CMAR将感谢您的反馈：https://docs.google.com/forms/d/e/1FAIpQLSe3TD6umrsVVKnQL13VVMJIpckCi2ctONJsgN7_g-4c-tKTuw/viewform。请在使用本数据时认可新斯科舍海洋应用研究中心。如需更多信息，请联系[e-mail]。