Data Access Form

Dataset Title:	Laura Bassi 39th PNRA
Institution:	OGS (Dataset ID: laurabassi_pnra39)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Files \| Make a graph

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Variable	Minimum	Maximum
time (Time Utc, UTC)	2024-01-06T00:00:02Z	2024-03-01T18:10:01Z

latitude (degrees_north)	-78.721908783333	-43.581891166667

longitude (degrees_east)	-179.99070411667	179.99978121667

speed_kts	0.0	15.5
course	0.0	359.99
heading	0.0	359.99
temperature	-15.4	16.4
pressure	964.5	1019.8000000000001

Server-side Functions

distinct()

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File type: (more information)

(Documentation / Bypass this form )

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.704499202e+9, 1.709316601e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Time Utc";
    String source_name "time_utc";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01T00:00:00Z";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range -78.721908783333, -43.581891166667;
    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 actual_range -179.99070411667, 179.99978121667;
    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";
  }
  speed_kts {
    Float32 actual_range 0.0, 15.5;
    String ioos_category "Currents";
    String long_name "Speed Kts";
  }
  course {
    Float32 actual_range 0.0, 359.99;
    String ioos_category "Unknown";
    String long_name "Course";
  }
  heading {
    Float32 actual_range 0.0, 359.99;
    String ioos_category "Unknown";
    String long_name "Heading";
  }
  temperature {
    Float32 _FillValue NaN;
    Float32 actual_range -15.4, 16.4;
    String ioos_category "Temperature";
    String long_name "Temperature";
  }
  pressure {
    Float64 _FillValue NaN;
    Float64 actual_range 964.5, 1019.8000000000001;
    String ioos_category "Pressure";
    String long_name "Pressure";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Point";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_name "OGS";
    String creator_type "institution";
    Float64 Easternmost_Easting 179.99978121667;
    String featureType "Point";
    Float64 geospatial_lat_max -43.581891166667;
    Float64 geospatial_lat_min -78.721908783333;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 179.99978121667;
    Float64 geospatial_lon_min -179.99070411667;
    String geospatial_lon_units "degrees_east";
    String history 
"2025-05-15T11:43:29Z (local files)
2025-05-15T11:43:29Z https://lbnode.ogs.it/erddap/tabledap/laurabassi_pnra39.html";
    String infoUrl "???";
    String institution "OGS";
    String keywords "39th, bassi, course, currents, data, heading, kts, latitude, laura, longitude, ogs, pnra, pressure, speed, speed_kts, temperature, time";
    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 -43.581891166667;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing -78.721908783333;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "Laura Bassi 39th PNRA";
    String time_coverage_end "2024-03-01T18:10:01Z";
    String time_coverage_start "2024-01-06T00:00:02Z";
    String title "Laura Bassi 39th PNRA";
    Float64 Westernmost_Easting -179.99070411667;
  }
}

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.