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Dataset Title:  Satellite Glider Matchups Subscribe RSS
Institution:  University of Delaware   (Dataset ID: glider_satmatch_bathy_50m)
Range: longitude = -88.79958 to -63.31979°E, latitude = 29.27762 to 41.00956°N
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Data Access Form
 
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Things You Can Do With Your Graphs

Well, you can do anything you want with your graphs, of course. But some things you might not have considered are:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  row {
    UInt32 _ChunkSizes 1048576;
    Int32 actual_range 1, 138158;
    String ioos_category "Unknown";
    String long_name "row";
    String units "row_number";
  }
  mission {
    UInt32 _ChunkSizes 1, 25;
    String ioos_category "Unknown";
    String long_name "The name of the glider deployment";
  }
  depth_bin_m {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range 1.0, 49.0;
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String ioos_category "Location";
    String long_name "one meter depth bins used to average glider data positive down";
    String positive "down";
    String standard_name "depth";
    String units "meters";
  }
  bb {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range 0.0, 0.00667898;
    String ioos_category "Unknown";
    String long_name "backsatter from WetLABS ECO flbbcd [1/m*sr] obs type measured";
  }
  chl {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range 0.0, 16.213;
    String ioos_category "Unknown";
    String long_name "original chlorophyll fluorescence from WetLABS ECO flbbcd [ug/l] obs type measured";
    String standard_name "mass_concentration_of_chlorophyll_a_in_sea_water";
  }
  chl_npqcor {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range 0.0, 244.7365;
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Quality";
    String long_name "Non-photochemical quenching corrected chlorophyll obs type calculated (Smith et al 2021 unpublished)";
    String standard_name "mass_concentration_of_chlorophyll_a_in_sea_water";
  }
  time2 {
    UInt32 _ChunkSizes 138158;
    Float64 actual_range 1.3740192e+9, 1.5431904e+9;
    String ioos_category "Time";
    String long_name "Calendar date corresponding to the mid point of the profile, used to match to AQUA-MODIS and SNPP-VIIRS variables";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String tz "UTC";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    UInt32 _ChunkSizes 138158;
    String _CoordinateAxisType "Lat";
    Float32 _FillValue -999.0;
    Float32 actual_range 29.27762, 41.00956;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Value is interpolated to provide an estimate of the latitude at the mid-point of the profile";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    UInt32 _ChunkSizes 138158;
    String _CoordinateAxisType "Lon";
    Float32 _FillValue -999.0;
    Float32 actual_range -88.79958, -63.31979;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Value is interpolated to provide an estimate of the longitude at the mid-point of the profile";
    String standard_name "longitude";
    String units "degrees_east";
  }
  dist_traveled_m {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range 0.0, 46176.68;
    String ioos_category "Unknown";
    String long_name "distance in meters the glider traveled that day. From R function distGEO https://www.rdocumentation.org/packages/geosphere/versions/1.5-10/topics/distGeo";
    String observation_type "Calculated";
    String units "m";
  }
  matched_kd {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range 0.0212, 0.5246;
    String ioos_category "Unknown";
    String long_name "SNPP-VIIRS Diffuse attenuation coefficient at 490nm, KD2 algorithm, matched to co-incident glider profiles.";
  }
  matched_par {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range 0.5273303, 63.841;
    String ioos_category "Optical Properties";
    String long_name "SNPP-VIIRS Photosynthetically Available Radiation, R. Frouin. Matched to co-incident glider profiles.";
  }
  matched_chl_v {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range 0.03649778, 7.873127;
    String ioos_category "Unknown";
    String long_name "AQUA-MODIS matched_chl_v, matched to coincident glider profiles.";
  }
  matched_bb_v {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range -0.023835, 0.05715334;
    String ioos_category "Unknown";
    String long_name "AQUA-MODIS matched_bb_v, matched to coincident glider profiles.";
  }
  matched_443_v {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range -0.007343999, 0.01401267;
    String ioos_category "Unknown";
    String long_name "AQUA-MODIS matched_443_v, matched to coincident glider profiles.";
  }
  matched_486_v {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range 6.260009e-4, 0.01427733;
    String ioos_category "Unknown";
    String long_name "AQUA-MODIS matched_486_v, matched to coincident glider profiles.";
  }
  matched_551_v {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range 8.280009e-4, 0.01689667;
    String ioos_category "Unknown";
    String long_name "AQUA-MODIS matched_551_v, matched to coincident glider profiles.";
  }
  matched_wm_v {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range -153.4001, 9539.6;
    String ioos_category "Unknown";
    String long_name "AQUA-MODIS matched_wm_v, matched to coincident glider profiles.";
  }
  matched_chl_m {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range 0.05545107, 16.21612;
    String ioos_category "Unknown";
    String long_name "AQUA-MODIS matched_chl_m, matched to coincident glider profiles.";
  }
  matched_bb_m {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range 9.550041e-4, 0.2314933;
    String ioos_category "Unknown";
    String long_name "AQUA-MODIS matched_bb_m, matched to coincident glider profiles.";
  }
  matched_443_m {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range -0.007515333, 0.012994;
    String ioos_category "Unknown";
    String long_name "AQUA-MODIS matched_443_m, matched to coincident glider profiles.";
  }
  matched_488_m {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range -0.003434666, 0.01461267;
    String ioos_category "Unknown";
    String long_name "AQUA-MODIS matched_488_m, matched to coincident glider profiles.";
  }
  matched_547_m {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range -6.593325e-4, 0.016366;
    String ioos_category "Unknown";
    String long_name "AQUA-MODIS matched_547_m, matched to coincident glider profiles.";
  }
  matched_wm_m {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range 38.0, 455.0;
    String ioos_category "Unknown";
    String long_name "AQUA-MODIS Water Mass Classification, matched to coincident glider profiles. Oliver & Irwin 2008";
  }
  kd_inverse {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range 1.906214, 47.16981;
    String ioos_category "Unknown";
    String long_name "1 / matched_kd, the depth at which light at the surface is reduced by a factor of e (2.71...).";
  }
  bathy {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range -4807.0, -11.0;
    String ioos_category "Unknown";
    String long_name "matched bathymettry from NOAA’s ETOPO1 database. Amante & Eakins 2009. .";
  }
  temperature_degc {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range 5.040122, 29.3427;
    String ioos_category "Unknown";
    String long_name "Sea Water temperature.";
    String observation_type "measured";
    String standard_name "sea_water_temperature";
    String units "Celsius";
  }
  conductivity_s_m {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range -1.0, 5.919658;
    String ioos_category "Unknown";
    String long_name "Sea Water conductivity.";
    String observation_type "measured";
    String standard_name "sea_water_electrical_conductivity";
    String units "S m-1";
  }
  salinity_psu {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range 0.03510811, 50.28427;
    String ioos_category "Unknown";
    String observation_type "calculated";
    String standard_name "sea_water_salinity";
    String units "psu";
  }
  density_calc {
    UInt32 _ChunkSizes 138158;
    Float32 _FillValue -999.0;
    Float32 actual_range 999.3481, 1037.486;
    String ioos_category "Unknown";
    String observation_type "calculated";
    String standard_name "sea_water_density";
    String units "mg/m3";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    Float64 Easternmost_Easting -63.31979;
    Float64 geospatial_lat_max 41.00956;
    Float64 geospatial_lat_min 29.27762;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -63.31979;
    Float64 geospatial_lon_min -88.79958;
    String geospatial_lon_units "degrees_east";
    String history 
"2025-10-31T06:10:56Z (local files)
2025-10-31T06:10:56Z http://basin.ceoe.udel.edu/tabledap/glider_satmatch_bathy_50m.das";
    String infoUrl "orb.udel.edu";
    String institution "University of Delaware";
    String keywords "available, bathy, chl, chl_npqcor, chlorophyll, data, depth, depth_bin_m, dist, dist_traveled_m, inverse, kd_inverse, latitude, local, longitude, matched, matched_443_m, matched_443_v, matched_486_v, matched_488_m, matched_547_m, matched_551_v, matched_bb_m, matched_bb_v, matched_chl_m, matched_chl_v, matched_kd, matched_par, matched_wm_m, matched_wm_v, mission, npqcor, optical, optical properties, par, photosynthetically, properties, quality, radiation, row, source, time, time2, traveled\\\\.m, v";
    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.";
    Float64 Northernmost_Northing 41.00956;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 29.27762;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String summary "Aggregate 62 slocum glider deployments from 2013 - 2018 in the North West Atlantic. Reprocessed to include optical data. Glider Optics must have been factory calibrated withing one year of deployment. Data from glider profiles are averaged to one daily profile, and subset to the top fifty (50) meters in one-meter depth bins. Includes matched chl_oc3 chlorophyll and remote sensing reflectances from AQUA-MODIS and SNPP-VIIRS, as well as matched diffuse attenuation coefficient at 490nm (Kd_490) and Photosynthetically Active Radiation (par) from SNPP-VIIRS.";
    String title "Satellite Glider Matchups";
    Float64 Westernmost_Easting -88.79958;
  }
}

 

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.

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.


 
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