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Dataset Title:	RADS Altimeter Along-Track Data
Institution:	Rutgers University (Dataset ID: RADS_ALTIMETER_V2)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Make a graph

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Variable

Optional
Constraint #1

Optional
Constraint #2

Minimum

or a List of Values

Maximum

time (UTC)

2010-07-16T05:44:06Z

2024-11-20T17:46:45Z

latitude (degrees_north)

32.0

45.999999

longitude (degrees_east)

-77.999951

-59.0

sla (Sea Level Anomaly, m)

-2.9714

2.9955

sat (Satelite Name)

provenance

dry_tropo (m)

-2.3825

0.3236

wet_tropo (m)

-31.0717

0.0

iono (m)

-0.1959

809175.1082

inv_bar (m)

-0.8437

0.906

tide_ocean_got410 (GOT4.10c ocean tide, m)

-4.9856

4.995

tide_load_got410 (GOT4.10 load tide, m)

-0.0491

0.0425

ssb (m)

-0.798

0.0894

mss_dtu15 (m)

-50.3571

-10.7378

cycle (Satelite cycle)

pass (Satelite pass)

Server-side Functions

distinct()

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.279259046193016e+9, 1.732124805530074e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range 32.0, 45.999999;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue NaN;
    Float64 actual_range -77.999951, -59.0;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  sla {
    Float64 _FillValue NaN;
    Float64 actual_range -2.9714, 2.9955;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum -10.0;
    String ioos_category "Location";
    String long_name "Sea Level Anomaly";
    String units "m";
  }
  sat {
    String ioos_category "Unknown";
    String long_name "Satelite Name";
  }
  provenance {
    Float64 _FillValue NaN;
    Float64 actual_range 403.0, 451.0;
    String ioos_category "Unknown";
    String long_name "Provenance";
  }
  dry_tropo {
    Float64 _FillValue NaN;
    Float64 actual_range -2.3825, 0.3236;
    String ioos_category "Unknown";
    String long_name "ECMWF dry tropospheric correction";
    String units "m";
  }
  wet_tropo {
    Float64 _FillValue NaN;
    Float64 actual_range -31.0717, 0.0;
    String ioos_category "Unknown";
    String long_name "radiometer, ECMWF wet tropospheric correction";
    String units "m";
  }
  iono {
    Float64 _FillValue NaN;
    Float64 actual_range -0.1959, 809175.1082;
    String ioos_category "Unknown";
    String long_name "smoothed dual-frequency, JPL GIM, NIC09 ionospheric correction ";
    String units "m";
  }
  inv_bar {
    Float64 _FillValue NaN;
    Float64 actual_range -0.8437, 0.906;
    Float64 colorBarMaximum 1050.0;
    Float64 colorBarMinimum 950.0;
    String ioos_category "Pressure";
    String long_name "MOG2D dynamic atmospheric correction (ERA Interim forcing), MOG2D dynamic atmospheric correction, MOK2D inverse barometer correction";
    String standard_name "air_pressure";
    String units "m";
  }
  tide_ocean_got410 {
    Float64 _FillValue NaN;
    Float64 actual_range -4.9856, 4.995;
    Float64 colorBarMaximum 2.0;
    Float64 colorBarMinimum -2.0;
    String ioos_category "Sea Level";
    String long_name "GOT4.10c ocean tide";
    String standard_name "sea_surface_height";
    String units "m";
  }
  tide_load_got410 {
    Float64 _FillValue NaN;
    Float64 actual_range -0.0491, 0.0425;
    Float64 colorBarMaximum 2.0;
    Float64 colorBarMinimum -2.0;
    String ioos_category "Sea Level";
    String long_name "GOT4.10 load tide";
    String standard_name "sea_surface_height";
    String units "m";
  }
  ssb {
    Float64 _FillValue NaN;
    Float64 actual_range -0.798, 0.0894;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Statistics";
    String long_name "CLS non-parametric sea state bias";
    String units "m";
  }
  mss_dtu15 {
    Float64 _FillValue NaN;
    Float64 actual_range -50.3571, -10.7378;
    Float64 colorBarMaximum 2.0;
    Float64 colorBarMinimum -2.0;
    String ioos_category "Sea Level";
    String long_name "DTU15 mean sea surface height";
    String standard_name "sea_surface_height";
    String units "m";
  }
  cycle {
    Float64 _FillValue NaN;
    Float64 actual_range 1.0, 395.0;
    String ioos_category "Unknown";
    String long_name "Satelite cycle";
  }
  pass {
    Float64 _FillValue NaN;
    Float64 actual_range 1.0, 999.0;
    String ioos_category "Unknown";
    String long_name "Satelite pass";
  }
 }
  NC_GLOBAL {
    String _NCProperties "version=2,netcdf=4.9.2,hdf5=1.14.0";
    String cdm_data_type "Point";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    Float64 Easternmost_Easting -59.0;
    String featureType "Point";
    Float64 geospatial_lat_max 45.999999;
    Float64 geospatial_lat_min 32.0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -59.0;
    Float64 geospatial_lon_min -77.999951;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-11-21T22:59:47Z (local files)
2024-11-21T22:59:47Z https://tds.marine.rutgers.edu/erddap/tabledap/RADS_ALTIMETER_V2.html";
    String infoUrl "???";
    String institution "Rutgers University";
    String keywords "air, air_pressure, altimetere, anomaly, atmosphere, atmospheric, barometer, bias, centre, cls, collecte, correction, cycle, data, dry, dry_tropo, dtu15, dual, dual-frequency, dynamic, Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements, Earth Science > Atmosphere > Atmospheric Pressure > Sea Level Pressure, Earth Science > Atmosphere > Atmospheric Pressure > Static Pressure, Earth Science > Oceans > Sea Surface Topography > Sea Surface Height, ecmwf, era, european, forcing, forecasts, frequency, gim, got4.10, got4.10c, height, interim, inv_bar, inverse, iono, ionospheric, jet, jpl, laboratory, latitude, level, load, localisation, longitude, mean, measurements, medium, medium-range, mog2d, mok2d, mss_dtu15, name, nic09, non, non-parametric, ocean, oceans, parametric, pass, pressure, propulsion, provenance, radiometer, rads, range, sat, satelite, satellites, sea, sea level, sea_surface_height, sla, smoothed, ssb, state, static, statistics, surface, tide, tide_load_got410, tide_ocean_got410, time, topography, tropospheric, weather, wet, wet_tropo";
    String keywords_vocabulary "GCMD Science Keywords";
    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 45.999999;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 32.0;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String subsetVariables "sat, provenance, cycle, pass";
    String summary "http://rads.tudelft.nl/rads/rads.shtml";
    String time_coverage_end "2024-11-20T17:46:45Z";
    String time_coverage_start "2010-07-16T05:44:06Z";
    String title "RADS Altimeter Along-Track Data";
    Float64 Westernmost_Easting -77.999951;
  }
}

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.

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