Data Access Form

Dataset Title:	Western Gulf of Maine, 2013-2017 - 10641sc-a
Institution:	Coastal and Marine Hazards and Resources Program, U.S. Geological Survey (Dataset ID: W_GMAINE_10641sc_a_nc)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Files \| Make a graph

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Variable	Minimum	Maximum
station_id	"W_GMAINE_10641sc_a..."	"W_GMAINE_10641sc_a..."
feature_type_instance	"10641sc-a"	"10641sc-a"
latitude (sensor latitude, degrees_north)	42.5228	42.5228

longitude (sensor longitude, degrees_east)	-70.566	-70.566

crs	-2147483647	-2147483647
platform	-2147483647	-2147483647
time (time of measurement, UTC)	2016-07-07T20:15:06Z	2017-01-30T13:45:06Z

z (m)	-52.0	-52.0
ATTN_55 (ATTENUATION 1, m-1)	0.1507641	2.564853
C_51 (Conductivity, S/m)	3.18203	3.97819
S_41 (Salinity, 1e-3)	32.019	33.1359
T_28 (degree_Celsius)	5.544708	14.6781
tran_4010 (TRANSMISSION (VOLTS) , Volts)	2.5372	4.5993

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  station_id {
    String actual_range 
"W_GMAINE_10641sc_a_nc
W_GMAINE_10641sc_a_nc";
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Station ID";
  }
  feature_type_instance {
    String ioos_category "Identifier";
    String long_name "Identifier for each feature type instance";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 42.5228, 42.5228;
    String axis "Y";
    String ioos_category "Location";
    String long_name "sensor latitude";
    String standard_name "latitude";
    String units "degrees_north";
    Float32 valid_max 42.5228;
    Float32 valid_min 42.5228;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -70.566, -70.566;
    String axis "X";
    String ioos_category "Location";
    String long_name "sensor longitude";
    String standard_name "longitude";
    String units "degrees_east";
    Float32 valid_max -70.566;
    Float32 valid_min -70.566;
  }
  crs {
    Int32 actual_range -2147483647, -2147483647;
    String epsg_code "EPSG:4326";
    String grid_mapping_name "latitude_longitude";
    Float64 inverse_flattening 298.257223563;
    String ioos_category "Identifier";
    String long_name "http://www.opengis.net/def/crs/EPSG/0/4326";
    Float64 semi_major_axis 6378137.0;
  }
  platform {
    Int32 actual_range -2147483647, -2147483647;
    String definition "http://mmisw.org/ont/ioos/definition/stationID";
    String ioos_category "Identifier";
    String ioos_code "10641sc-a";
    String long_name "USGS-CMG time-series data from the Western Gulf of Maine, 2013-2017 project, mooring 1064 and package 10641sc-a. Near-bottom Temperature, Conductivity, and Light Transmission Observations in the Western Gulf of Maine, 2013-2017";
    String nodc_name "FIXED PLATFORM, MOORINGS";
    String short_name "USGS-CMG time-series data: W_GMAINE - 1064 - 10641sc-a";
    String type "mooring";
  }
  time {
    UInt32 _ChunkSizes 1000;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.467922506e+9, 1.485783906e+9;
    String axis "T";
    String calendar "gregorian";
    String ioos_category "Time";
    String long_name "time of measurement";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  z {
    Float32 actual_range -52.0, -52.0;
    String axis "Z";
    String FillValue "-9999.900390625";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "z of the sensor relative to the water surface";
    String positive "up";
    String standard_name "height";
    String units "m";
    Float32 valid_max -52.0;
    Float32 valid_min -52.0;
  }
  ATTN_55 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 0.1507641, 2.564853;
    String ancillary_variables "platform";
    Float64 cal_factory 4.698, 4.805, 0.005;
    String cal_manufacturer "C-Star";
    Float64 cal_path_length 0.25;
    Float64 cal_pre 4.8389, 0.0054;
    Float64 cal_rsensor 0.9777;
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    String FillValue "1.0000000409184788e+35";
    String grid_mapping "crs";
    String height_depth_units "m";
    Float64 initial_sensor_height 13.0;
    String ioos_category "Other";
    String long_name "ATTENUATION 1";
    Float32 missing_value 1.0e+35;
    String platform "platform";
    Float64 sensor_depth 52.0;
    String sensor_type "transmissometer";
    String serial_number "1746";
    String units "m-1";
    String varcomment "T=100(V_observed-V_blocked)/(r_sensor (V_airpredeployment-V_blocked)); attn = -(1/L) ln(T/100)";
  }
  C_51 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 3.18203, 3.97819;
    String ancillary_variables "platform";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 51;
    String FillValue "1.0000000409184788e+35";
    String FORTRAN_format "f10.3";
    String generic_name "con";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "Conductivity";
    Float32 missing_value 1.0e+35;
    String platform "platform";
    Float64 sensor_depth 52.0;
    String serial_number "6384";
    String standard_name "sea_water_electrical_conductivity";
    String units "S/m";
  }
  S_41 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 32.019, 33.1359;
    String ancillary_variables "platform";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 41;
    String FillValue "1.0000000409184788e+35";
    String FORTRAN_format "f10.2";
    String generic_name "sal";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "Salinity";
    Float32 missing_value 1.0e+35;
    String platform "platform";
    Float64 sensor_depth 52.0;
    String serial_number "1746";
    String standard_name "sea_water_practical_salinity";
    String units "1e-3";
  }
  T_28 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 5.544708, 14.6781;
    String ancillary_variables "platform";
    String comment "ITS-1990 Standard";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 28;
    String FillValue "1.0000000409184788e+35";
    String FORTRAN_format "f10.2";
    String generic_name "temp";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "Water Temperature";
    Float32 missing_value 1.0e+35;
    String platform "platform";
    Float64 sensor_depth 52.0;
    String serial_number "6384";
    String standard_name "sea_water_temperature";
    String units "degree_Celsius";
  }
  tran_4010 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 2.5372, 4.5993;
    String ancillary_variables "platform";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Float64 epic_code 4010.0;
    String FillValue "1.0000000409184788e+35";
    String FORTRAN_format "f10.3";
    String generic_name "trans";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "TRANSMISSION (VOLTS) ";
    Float32 missing_value 1.0e+35;
    String platform "platform";
    Float64 sensor_depth 52.0;
    String serial_number "1746";
    String units "Volts";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station_id";
    Int32 COMPOSITE 0;
    String contributor_name "B. Butman";
    String contributor_role "principalInvestigator";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String COORD_SYSTEM "GEOGRAPHIC";
    String CREATION_DATE "07-Feb-2018 13:58:11";
    String creator_email "rsignell@usgs.gov";
    String creator_name "Rich Signell";
    String creator_phone "+1 (508) 548-8700";
    String creator_url "https://www.usgs.gov";
    String DATA_SUBTYPE "MOORED";
    String date_created "2018-08-28T13:43:00Z";
    String date_issued "2018-08-28T13:43:00Z";
    String date_metadata_modified "2018-08-28T13:43:00Z";
    String date_modified "2018-08-28T13:43:00Z";
    Float64 DELTA_T 901.0;
    String Deployment_date "7-Jul-2016";
    Int32 DEPTH_CONST 0;
    String DESCRIPTION "Near bottom instruments- NERACOOS site M";
    Int32 DRIFTER 0;
    Float64 Easternmost_Easting -70.566;
    Int32 elapsed_days 234;
    String EXPERIMENT "Western Gulf of Maine";
    String experiment_name "W_GMAINE";
    String featureType "TimeSeries";
    Int32 FILL_FLAG 0;
    String geospatial_bounds "POINT(-70.56600189208984 42.52280044555664)";
    String geospatial_bounds_crs "EPSG:4326";
    Float64 geospatial_lat_max 42.5228;
    Float64 geospatial_lat_min 42.5228;
    Float64 geospatial_lat_resolution 0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -70.566;
    Float64 geospatial_lon_min -70.566;
    Float64 geospatial_lon_resolution 0;
    String geospatial_lon_units "degrees_east";
    String geospatial_vertical_positive "up";
    String geospatial_vertical_resolution "0";
    String geospatial_vertical_units "meters";
    String grid_mapping_epsg_code "EPSG:4326";
    Float64 grid_mapping_inverse_flattening 298.257223563;
    String grid_mapping_long_name "http://www.opengis.net/def/crs/EPSG/0/4326";
    String grid_mapping_name "latitude_longitude";
    Float64 grid_mapping_semi_major_axis 6378137.0;
    String history 
"Mon Nov  4 14:00:48 2019: ncatted -a project,global,a,c,, CMG_Portal W_GMAINE/10641sc-a.nc
lat, lon vars + global attributes corrected.:Trimmed using trunc_cdfNative,  SVN $Revision: 5793 $ to select records in the range 2601 to 22428.  :created using ipf_seabirdNative in Matlab 8.6.0.267246 (R2015b).
2018-08-28T13:43:00Z - pyaxiom - File created using pyaxiom
2025-04-07T13:12:44Z (local files)
2025-04-07T13:12:44Z https://cmgds.marine.usgs.gov/erddap/tabledap/W_GMAINE_10641sc_a_nc.html";
    String id "10641sc-a";
    String infoUrl "https://cmgds.marine.usgs.gov/ocean-time-series/";
    Float64 initial_instrument_height 13.0;
    String INST_TYPE "Seabird SeaCAT 16 plus";
    String institution "Coastal and Marine Hazards and Resources Program, U.S. Geological Survey";
    String keywords "Earth Science > Oceans > Ocean Pressure > Water Pressure, Earth Science > Oceans > Ocean Temperature > Water Temperature, Earth Science > Oceans > Salinity/Density > Conductivity, Earth Science > Oceans > Salinity/Density > Salinity";
    String keywords_vocabulary "GCMD Science Keywords";
    Float32 latitude 42.5228;
    String license 
"The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.";
    Float32 longitude -70.566;
    String metadata_link "http://doi.org/10.5066/P99U02U";
    Float64 MOORING 1064;
    String naming_authority "gov.usgs.cmgp";
    String ncei_template_version "NCEI_NetCDF_TimeSeries_Orthogonal_Template_v2.0";
    String NCO "netCDF Operators version 4.8.1 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco)";
    String NCProperties "version=1|netcdflibversion=4.6.1|hdf5libversion=1.10.1";
    Float64 Northernmost_Northing 42.5228;
    String original_filename "10641sc-a.nc";
    String original_folder "W_GMAINE";
    String platform_type "Mooring";
    Int32 POS_CONST 0;
    String project "U.S. Geological Survey Oceanographic Time-Series Data, CMG_Portal";
    String project_summary "Near-bottom Temperature, Conductivity, and Light Transmission Observations in the Western Gulf of Maine, 2013-2017";
    String project_title "Western Gulf of Maine, 2013-2017";
    String publisher_email "emontgomery@usgs.gov";
    String publisher_name "Ellyn Montgomery";
    String publisher_phone "+1 (508) 548-8700";
    String publisher_url "https://www.usgs.gov";
    String Recovery_date "30-Jan-2017";
    String SciPi "B.Butman";
    String serial_number "sc-6384";
    String source "USGS";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 42.5228;
    String standard_name_vocabulary "CF-1.6";
    String start_time "07-Jul-2016 20:15:06";
    String stop_time "30-Jan-2017 13:45:06";
    String summary "Near-bottom Temperature, Conductivity, and Light Transmission Observations in the Western Gulf of Maine, 2013-2017";
    String time_coverage_duration "PT17861400S";
    String time_coverage_end "2017-01-30T13:45:06Z";
    String time_coverage_resolution "PT900S";
    String time_coverage_start "2016-07-07T20:15:06Z";
    String title "Western Gulf of Maine, 2013-2017 - 10641sc-a";
    String VAR_DESC "T:C:S:tran:";
    Float64 VAR_FILL 1.0e+35;
    Float64 WATER_DEPTH 65.0;
    String WATER_DEPTH_datum "none";
    String WATER_DEPTH_source "shipboard echosounder";
    Float64 Westernmost_Easting -70.566;
  }
}

Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP (external link)

Data Access Protocol (DAP) (external link)

and its selection constraints (external link)

The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.

(easy) You can get data by using the dataset's Data Access Form or Subset form. They make the URL for you.
(easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
(not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.

Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names, followed by a collection of constraints (e.g., variable<value), each preceded by '&' (which is interpreted as "AND").

For details, see the tabledap Documentation.