At continuous monitoring sites throughout Maryland, water quality is monitored at shallow water sites located in Chesapeake Bay, Chesapeake Bay tributaries and Maryland Coastal Bay tributaries. YSI (6600 V2 or EXO2) data loggers sample seven environmental parameters: water temperature, specific conductance, dissolved oxygen concentration, oxygen percent saturation, pH, turbidity and fluorescence. Water depth is measured at stations where loggers were deployed at fixed depths. Salinity and chlorophyll are derived from specific conductance and fluorescence, respectively. Each parameter is generally sampled at 15-minute intervals. Most continuous monitoring sites are deployed during the SAV growing season (April-October) with a few sites deployed year-round. _NCProperties=version=2,netcdf=4.9.4-development,hdf5=1.14.2 acknowledgement=The Maryland Department of Natural Resources' continuous monitoring project is made possible with funding provided by The State of Maryland, the United States Environmental Protection Agency Chesapeake Bay Program, the National Oceanic and Atmospheric Administration Chesapeake Bay Office and National Estuarine Research Reserve System program, the Dominion Foundation, the National Fish and Wildlife Foundation, the Oyster Recovery Partnership, the National Aquarium in Baltimore, and The Nature Conservancy. cdm_data_type=TimeSeries cdm_timeseries_variables=station_name, latitude, longitude comment=All current and prior years’ continuous monitoring data are available on the \“Eyes on the Bay\” website (www.eyesonthebay.net). Annual Quality Assurance Project Plans and metadata records for the Maryland Department of Natural Resources, Chesapeake Bay Shallow Water Quality Monitoring Program can be found using publication type 'Quality Assurance Project Plan' and ‘Metadata’ to search the Monitoring News & Reports page (http://eyesonthebay.dnr.maryland.gov/eyesonthebay/stories.cfm) of the “Eyes on the Bay” website. Conventions=CF-1.6, ACDD-1.3, COARDS date_metadata_modified=2025-07-13T23:50:39Z Easternmost_Easting=-76.27456667 featureType=TimeSeries geospatial_bounds=POINT(39.45078333 -76.27456667) geospatial_bounds_crs=EPSG:4326 geospatial_bounds_vertical_crs=EPSG:4297 geospatial_lat_max=39.45078333 geospatial_lat_min=39.45078333 geospatial_lat_units=degrees_north geospatial_lon_max=-76.27456667 geospatial_lon_min=-76.27456667 geospatial_lon_units=degrees_east geospatial_vertical_max=0.3 geospatial_vertical_min=0.3 geospatial_vertical_positive=down geospatial_vertical_units=m history=Created by the RPS harvester from data at 'http://eyesonthebay.dnr.maryland.gov/contmon/JustDownload.cfm' on 20181103 00:16 infoUrl=http://eyesonthebay.dnr.maryland.gov/eyesonthebay/ConMonStationTable.cfm institution=Maryland Department of Natural Resources (MDDNR) keywords_vocabulary=GCMD Science Keywords Metadata_Conventions=Unidata Dataset Discovery v1.0 metadata_link=http://eyesonthebay.dnr.maryland.gov/eyesonthebay/ConMonStationTable.cfm naming_authority=maryland.dnr nodc_template_version=NODC_NetCDF_TimeSeries_Orthogonal_Template_v2.0 Northernmost_Northing=39.45078333 platform=fixed platform_id=XJG7035 platform_name=MDDNR - Otter_Point_Creek platform_vocabulary=https://mmisw.org/ont/ioos/platform processing_level=Automated data quality assurance checks performed project=Maryland Department of Natural Resources Shallow Water Monitoring Program. This program includes the continuous monitoring project, as well as water quality mapping of the tidal tributaries of Maryland’s Chesapeake Bay. real_time=true references=http://eyesonthebay.dnr.maryland.gov/eyesonthebay/DataTypes.cfm source=http://eyesonthebay.dnr.maryland.gov/ sourceUrl=http://eyesonthebay.dnr.maryland.gov/ Southernmost_Northing=39.45078333 standard_name_vocabulary=CF Standard Name Table v55 time_coverage_duration=PT79200S time_coverage_end=2025-07-13T22:00:00Z time_coverage_resolution=PT900S time_coverage_start=2017-04-04T13:45:23Z Westernmost_Easting=-76.27456667

Open the Data Resource: https://eyesonthebay.dnr.maryland.gov Eyes on the Bay features Maryland tidal water quality data and information. The data displayed on this website represent many key measures of water and habitat quality for living resources such as fish, crabs and oysters. This information is being collected to guide the restoration of the Chesapeake Bay, its tributaries, Coastal Bays and Maryland lakes by identifying specific problems and evaluating the success of management initiatives.

At continuous monitoring sites throughout Maryland, water quality is monitored at shallow water sites located in Chesapeake Bay, Chesapeake Bay tributaries and Maryland Coastal Bay tributaries. YSI (6600 V2 or EXO2) data loggers sample seven environmental parameters: water temperature, specific conductance, dissolved oxygen concentration, oxygen percent saturation, pH, turbidity and fluorescence. Water depth is measured at stations where loggers were deployed at fixed depths. Salinity and chlorophyll are derived from specific conductance and fluorescence, respectively. Each parameter is generally sampled at 15-minute intervals. Most continuous monitoring sites are deployed during the SAV growing season (April-October) with a few sites deployed year-round. _NCProperties=version=1|netcdflibversion=4.4.1.1|hdf5libversion=1.8.18 acknowledgement=The Maryland Department of Natural Resources' continuous monitoring project is made possible with funding provided by The State of Maryland, the United States Environmental Protection Agency Chesapeake Bay Program, the National Oceanic and Atmospheric Administration Chesapeake Bay Office and National Estuarine Research Reserve System program, the Dominion Foundation, the National Fish and Wildlife Foundation, the Oyster Recovery Partnership, the National Aquarium in Baltimore, and The Nature Conservancy. cdm_data_type=TimeSeries cdm_timeseries_variables=station_name, latitude, longitude comment=All current and prior years’ continuous monitoring data are available on the \“Eyes on the Bay\” website (www.eyesonthebay.net). Annual Quality Assurance Project Plans and metadata records for the Maryland Department of Natural Resources, Chesapeake Bay Shallow Water Quality Monitoring Program can be found using publication type 'Quality Assurance Project Plan' and ‘Metadata’ to search the Monitoring News & Reports page (http://eyesonthebay.dnr.maryland.gov/eyesonthebay/stories.cfm) of the “Eyes on the Bay” website. Conventions=CF-1.6, ACDD-1.3, COARDS date_metadata_modified=2021-11-03T00:53:19Z Easternmost_Easting=-76.0848 featureType=TimeSeries geospatial_bounds=POINT(39.54778333 -76.0848) geospatial_bounds_crs=EPSG:4326 geospatial_bounds_vertical_crs=EPSG:4297 geospatial_lat_max=39.54778333 geospatial_lat_min=39.54778333 geospatial_lat_units=degrees_north geospatial_lon_max=-76.0848 geospatial_lon_min=-76.0848 geospatial_lon_units=degrees_east geospatial_vertical_max=1.0 geospatial_vertical_min=1.0 geospatial_vertical_positive=down geospatial_vertical_units=m history=Created by the RPS harvester from data at 'http://eyesonthebay.dnr.maryland.gov/contmon/JustDownload.cfm' on 20181103 00:16 infoUrl=http://eyesonthebay.dnr.maryland.gov/eyesonthebay/ConMonStationTable.cfm institution=Maryland Department of Natural Resources (MDDNR) keywords_vocabulary=GCMD Science Keywords Metadata_Conventions=Unidata Dataset Discovery v1.0 metadata_link=http://eyesonthebay.dnr.maryland.gov/eyesonthebay/ConMonStationTable.cfm naming_authority=maryland.dnr NCO=netCDF Operators version 4.7.5 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco) nodc_template_version=NODC_NetCDF_TimeSeries_Orthogonal_Template_v2.0 Northernmost_Northing=39.54778333 platform=fixed processing_level=Automated data quality assurance checks performed project=Maryland Department of Natural Resources Shallow Water Monitoring Program. This program includes the continuous monitoring project, as well as water quality mapping of the tidal tributaries of Maryland’s Chesapeake Bay. real_time=true references=http://eyesonthebay.dnr.maryland.gov/eyesonthebay/DataTypes.cfm source=http://eyesonthebay.dnr.maryland.gov/ sourceUrl=http://eyesonthebay.dnr.maryland.gov/ Southernmost_Northing=39.54778333 standard_name_vocabulary=CF Standard Name Table v55 time_coverage_duration=PT43200S time_coverage_end=2021-11-02T12:00:00Z time_coverage_resolution=PT900S time_coverage_start=2017-04-13T14:15:21Z Westernmost_Easting=-76.0848

This dataset was collected by a citizen science initiative named Chesapeake DolphinWatch, which is available as a web-based application or a phone application for iPhones/Androids. The daily dolphin sighting information was summed to weekly dolphin sightings. All environmental data, collected from the Maryland Department of Natural Resources (http://eyesonthebay.dnr.maryland.gov), the National Oceanic and Atmospheric Admistration (https://buoybay.noaa.gov), the Chesapeake Bay Program (http://data.chesapeakebay.net/WaterQuality), and the Astronomical Applications Department of the US Naval Observatory (https://www.usno.navy.mil/USNO/astronomical-applications). These data, too, were summed to represent weekly values.

At continuous monitoring sites throughout Maryland, water quality is monitored at shallow water sites located in Chesapeake Bay, Chesapeake Bay tributaries and Maryland Coastal Bay tributaries. YSI (6600 V2 or EXO2) data loggers sample seven environmental parameters: water temperature, specific conductance, dissolved oxygen concentration, oxygen percent saturation, pH, turbidity and fluorescence. Water depth is measured at stations where loggers were deployed at fixed depths. Salinity and chlorophyll are derived from specific conductance and fluorescence, respectively. Each parameter is generally sampled at 15-minute intervals. Most continuous monitoring sites are deployed during the SAV growing season (April-October) with a few sites deployed year-round. _NCProperties=version=1|netcdflibversion=4.4.1.1|hdf5libversion=1.8.18 acknowledgement=The Maryland Department of Natural Resources' continuous monitoring project is made possible with funding provided by The State of Maryland, the United States Environmental Protection Agency Chesapeake Bay Program, the National Oceanic and Atmospheric Administration Chesapeake Bay Office and National Estuarine Research Reserve System program, the Dominion Foundation, the National Fish and Wildlife Foundation, the Oyster Recovery Partnership, the National Aquarium in Baltimore, and The Nature Conservancy. cdm_data_type=TimeSeries cdm_timeseries_variables=station_name, latitude, longitude comment=All current and prior years’ continuous monitoring data are available on the \“Eyes on the Bay\” website (www.eyesonthebay.net). Annual Quality Assurance Project Plans and metadata records for the Maryland Department of Natural Resources, Chesapeake Bay Shallow Water Quality Monitoring Program can be found using publication type 'Quality Assurance Project Plan' and ‘Metadata’ to search the Monitoring News & Reports page (http://eyesonthebay.dnr.maryland.gov/eyesonthebay/stories.cfm) of the “Eyes on the Bay” website. Conventions=CF-1.6, ACDD-1.3, COARDS date_metadata_modified=2019-11-07T22:50:49Z Easternmost_Easting=-76.7208 featureType=TimeSeries geospatial_bounds=POINT(38.796 -76.7208) geospatial_bounds_crs=EPSG:4326 geospatial_bounds_vertical_crs=EPSG:4297 geospatial_lat_max=38.796 geospatial_lat_min=38.796 geospatial_lat_units=degrees_north geospatial_lon_max=-76.7208 geospatial_lon_min=-76.7208 geospatial_lon_units=degrees_east geospatial_vertical_max=0.3 geospatial_vertical_min=0.3 geospatial_vertical_positive=down geospatial_vertical_units=m history=Created by the RPS harvester from data at 'http://eyesonthebay.dnr.maryland.gov/contmon/JustDownload.cfm' on 20181103 00:16 infoUrl=http://eyesonthebay.dnr.maryland.gov/eyesonthebay/ConMonStationTable.cfm institution=Maryland Department of Natural Resources (MDDNR) keywords_vocabulary=GCMD Science Keywords Metadata_Conventions=Unidata Dataset Discovery v1.0 metadata_link=http://eyesonthebay.dnr.maryland.gov/eyesonthebay/ConMonStationTable.cfm naming_authority=maryland.dnr NCO=netCDF Operators version 4.7.5 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco) nodc_template_version=NODC_NetCDF_TimeSeries_Orthogonal_Template_v2.0 Northernmost_Northing=38.796 platform=fixed processing_level=Automated data quality assurance checks performed project=Maryland Department of Natural Resources Shallow Water Monitoring Program. This program includes the continuous monitoring project, as well as water quality mapping of the tidal tributaries of Maryland’s Chesapeake Bay. real_time=true references=http://eyesonthebay.dnr.maryland.gov/eyesonthebay/DataTypes.cfm source=http://eyesonthebay.dnr.maryland.gov/ sourceUrl=http://eyesonthebay.dnr.maryland.gov/ Southernmost_Northing=38.796 standard_name_vocabulary=CF Standard Name Table v55 time_coverage_duration=PT55800S time_coverage_end=2019-10-08T15:30:00Z time_coverage_resolution=PT900S time_coverage_start=2017-04-01T00:00:26Z Westernmost_Easting=-76.7208

Station Chesapeake Bay Segment 4 Dares Beach Pier, MDDNR Nutrient Challenge cdm_data_type=TimeSeries cdm_timeseries_variables=station_id, latitude, longitude Conventions=CF-1.6, ACDD-1.3, COARDS date_metadata_modified=2019-01-03T19:45:05Z Easternmost_Easting=-76.5154 featureType=TimeSeries geospatial_bounds=POINT(38.5597 -76.5154) geospatial_bounds_crs=EPSG:4326 geospatial_bounds_vertical_crs=EPSG:4297 geospatial_lat_max=38.5597 geospatial_lat_min=38.5597 geospatial_lat_units=degrees_north geospatial_lon_max=-76.5154 geospatial_lon_min=-76.5154 geospatial_lon_units=degrees_east geospatial_vertical_max=1.5 geospatial_vertical_min=1.5 geospatial_vertical_positive=down geospatial_vertical_units=m history=Thu Jan 13 18:19:26 2022: ncatted -O -a platform,global,c,c,fixed /data/mddnr_nutrient_challenge/Chesapeake_Bay_Segment_4_Dares_Beach_Pier/Chesapeake_Bay_Segment_4_Dares_Beach_Pier_20190101.nc /data/mddnr_nutrient_challenge/Chesapeake_Bay_Segment_4_Dares_Beach_Pier/Chesapeake_Bay_Segment_4_Dares_Beach_Pier_20190101.nc Wed Jan 9 09:49:30 2019: ncatted -O -a valid_max,,d,, ./Chesapeake_Bay_Segment_4_Dares_Beach_Pier/Chesapeake_Bay_Segment_4_Dares_Beach_Pier_20190101.nc ./Chesapeake_Bay_Segment_4_Dares_Beach_Pier/Chesapeake_Bay_Segment_4_Dares_Beach_Pier_20190101.nc Wed Jan 9 09:48:47 2019: ncatted -O -a valid_min,,d,, ./Chesapeake_Bay_Segment_4_Dares_Beach_Pier/Chesapeake_Bay_Segment_4_Dares_Beach_Pier_20190101.nc ./Chesapeake_Bay_Segment_4_Dares_Beach_Pier/Chesapeake_Bay_Segment_4_Dares_Beach_Pier_20190101.nc Created by the RPS harvester from data at 'http://eyesonthebay.dnr.maryland.gov/contmon/csvforcedownload_remotenutrientsensor.cfm?' on 20190103 19:45 id=XEE3691 infoUrl=http://eyesonthebay.dnr.maryland.gov/contmon/NutrientSensor.cfm institution=Maryland Department of Natural Resources (MDDNR) keywords_vocabulary=GCMD Science Keywords naming_authority=maryland.dnr NCO=netCDF Operators version 4.7.5 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco) nodc_template_version=NODC_NetCDF_TimeSeries_Orthogonal_Template_v2.0 Northernmost_Northing=38.5597 platform=fixed project=Nutrient Sensor Action Challenge references=http://eyesonthebay.dnr.maryland.gov/contmon/nutrientsensor.cfm source=http://eyesonthebay.dnr.maryland.gov/ sourceUrl=(local files) Southernmost_Northing=38.5597 standard_name_vocabulary=CF Standard Name Table v55 time_coverage_duration=PT43206S time_coverage_end=2019-01-01T12:48:37Z time_coverage_resolution=PT7201S time_coverage_start=2018-10-11T11:00:00Z Westernmost_Easting=-76.5154

Station Arundel on the Bay, MDDNR Nutrient Challenge cdm_data_type=TimeSeries cdm_timeseries_variables=station_id, latitude, longitude Conventions=CF-1.6, ACDD-1.3, COARDS date_metadata_modified=2019-01-03T23:47:03Z Easternmost_Easting=-76.4584 featureType=TimeSeries geospatial_bounds=POINT(38.9168 -76.4584) geospatial_bounds_crs=EPSG:4326 geospatial_bounds_vertical_crs=EPSG:4297 geospatial_lat_max=38.9168 geospatial_lat_min=38.9168 geospatial_lat_units=degrees_north geospatial_lon_max=-76.4584 geospatial_lon_min=-76.4584 geospatial_lon_units=degrees_east geospatial_vertical_max=1.0 geospatial_vertical_min=1.0 geospatial_vertical_positive=down geospatial_vertical_units=m history=Thu Jan 13 18:19:24 2022: ncatted -O -a platform,global,c,c,fixed /data/mddnr_nutrient_challenge/Arundel_on_the_Bay/Arundel_on_the_Bay_20190103.nc /data/mddnr_nutrient_challenge/Arundel_on_the_Bay/Arundel_on_the_Bay_20190103.nc Wed Jan 9 09:49:29 2019: ncatted -O -a valid_max,,d,, ./Arundel_on_the_Bay/Arundel_on_the_Bay_20190103.nc ./Arundel_on_the_Bay/Arundel_on_the_Bay_20190103.nc Wed Jan 9 09:48:46 2019: ncatted -O -a valid_min,,d,, ./Arundel_on_the_Bay/Arundel_on_the_Bay_20190103.nc ./Arundel_on_the_Bay/Arundel_on_the_Bay_20190103.nc Created by the RPS harvester from data at 'http://eyesonthebay.dnr.maryland.gov/contmon/csvforcedownload_remotenutrientsensor.cfm?' on 20190103 23:47 id=XGF5025 infoUrl=http://eyesonthebay.dnr.maryland.gov/contmon/NutrientSensor.cfm institution=Maryland Department of Natural Resources (MDDNR) keywords_vocabulary=GCMD Science Keywords naming_authority=maryland.dnr NCO=netCDF Operators version 4.7.5 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco) nodc_template_version=NODC_NetCDF_TimeSeries_Orthogonal_Template_v2.0 Northernmost_Northing=38.9168 platform=fixed project=Nutrient Sensor Action Challenge references=http://eyesonthebay.dnr.maryland.gov/contmon/nutrientsensor.cfm source=http://eyesonthebay.dnr.maryland.gov/ sourceUrl=(local files) Southernmost_Northing=38.9168 standard_name_vocabulary=CF Standard Name Table v55 subsetVariables=longitude, NO3, PO4, depth, station_id, latitude time_coverage_duration=PT7201S time_coverage_end=2019-01-03T03:57:57Z time_coverage_resolution=PT7201S time_coverage_start=2018-10-02T15:36:33Z Westernmost_Easting=-76.4584