Data Access Form

Dataset Title:	Daily near-surface temperature in Trieste harbour from digital records (1986- 2015)
Institution:	CNR-ISMAR (Dataset ID: TS_SEA_WATER_TEMPERATURE_86_15_DIG)
Information:	Summary \| License \| Metadata \| Background \| Files \| Make a graph

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Variable	Minimum	Maximum
time (UTC)	1986-01-01T00:00:00Z	2015-12-31T00:00:00Z

a_2_m_SEA_TEMPERATURE (degree_C)	4.0	29.5

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 5.049216e+8, 1.45152e+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";
  }
  a_2_m_SEA_TEMPERATURE {
    Float32 actual_range 4.0, 29.5;
    String ioos_category "water_temperature";
    String long_name "2-m SEA TEMPERATURE (deg C)";
    String units "degree_C";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_name "CNR-ISMAR";
    String creator_type "institution";
    String history 
"2025-01-18T08:06:08Z (local files)
2025-01-18T08:06:08Z http://erddap.ve.ismar.cnr.it/erddap/tabledap/TS_SEA_WATER_TEMPERATURE_86_15_DIG.html";
    String infoUrl "???";
    String institution "CNR-ISMAR";
    String keywords "1986-2015, 2-m, a_2_m_SEA_TEMPERATURE, cnr, cnr-ismar, council, daily, data, date, DATE_2_m_SEA_TEMPERATURE, day, digital, harbour, identifier, ismar, national, near, near-surface, records, research, sea, surface, temperature, trieste";
    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.";
    String sourceUrl "(local files)";
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "The data set includes daily near-surface sea temperatures measured in the harbour of Trieste (Italy) during 1899-2015. Two time series are formed: the first is derived from analogue measurements performed in the 1899-2008 period, the second is derived from digital records in 1986-2015. From these time series a composite time series for 1899-2015 is built. Data records consist of date and daily temperature in degrees Celsius to the 0.1 °C precision.";
    String time_coverage_end "2015-12-31T00:00:00Z";
    String time_coverage_start "1986-01-01T00:00:00Z";
    String title "Daily near-surface temperature in Trieste harbour from digital records (1986-2015)";
  }
}

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.