Data Access Form

Dataset Title:	adriatic tiresias
Institution:	ISMAR-CNR, Venice, Italy (Dataset ID: VE_Delta_Po_2010_2011_CWC_UV)
Information:	Summary \| License \| Metadata \| Background \| Files \| Make a graph

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Dimensions	Size	Spacing
time (UTC)	372	2h 0m 0s (even)

node (count)	38904	1.0 (even)

depth (m)	20	1.736842 (uneven)

Grid Variables (which always also download all of the dimension variables)

u_velocity (Eastward Sea Water Velocity, m s-1)

v_velocity (Northward Sea Water Velocity, m s-1)

File type: (more information)

(Documentation / Bypass this form)

(Please be patient. It may take a while to get the data.)

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.262304e+9, 1.2649752e+9;
    String axis "T";
    String calendar "standard";
    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";
  }
  node {
    Int32 actual_range 0, 38903;
    String long_name "Node";
    String units "count";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 actual_range 1.0, 34.0;
    String axis "Z";
    String description "bottom of vertical layers";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String source_name "level";
    String standard_name "depth";
    String units "m";
  }
  u_velocity {
    Float32 _FillValue -999.0;
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String long_name "Eastward Sea Water Velocity";
    String standard_name "eastward_sea_water_velocity";
    String units "m s-1";
    Float32 valid_max 10.0;
    Float32 valid_min -10.0;
  }
  v_velocity {
    Float32 _FillValue -999.0;
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String long_name "Northward Sea Water Velocity";
    String standard_name "northward_sea_water_velocity";
    String units "m s-1";
    Float32 valid_max 10.0;
    Float32 valid_min -10.0;
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String comment "Data restriction: for academic research use only";
    String contact "email: georg.umgiesser@ismar.cnr.it";
    String Conventions "CF-1.10, COARDS, ACDD-1.3";
    String creator_email "georg.umgiesser@ismar.cnr.it";
    String creator_name "Georg Umgiesser";
    String creator_type "person";
    String history 
"created on 2020-03-17 17:06:38 MET
2024-11-10T02:10:09Z (local files)
2024-11-10T02:10:09Z http://erddap-danubius.ve.ismar.cnr.it/erddap/griddap/VE_Delta_Po_2010_2011_CWC_UV.das";
    String infoUrl "???";
    String institution "ISMAR-CNR, Venice, Italy";
    String keywords "adriatic, circulation, cnr, council, currents, data, earth, Earth Science > Oceans > Ocean Circulation > Ocean Currents, eastward, eastward_sea_water_velocity, ismar, ismar-cnr, italy, level, national, node, northward, northward_sea_water_velocity, ocean, oceans, research, science, sea, seawater, time, tiresias, u_velocity, v_velocity, velocity, venice, water";
    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.";
    String references "Model info: http://www.ismar.cnr.it/shyfem";
    String source "Model data produced by SHYFEM at ISMAR-CNR";
    String sourceUrl "(local files)";
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "Data restriction: for academic research use only";
    String time_coverage_end "2010-01-31T22:00:00Z";
    String time_coverage_start "2010-01-01T00:00:00Z";
    String title "adriatic tiresias";
  }
}

Using griddap to Request Data and Graphs from Gridded Datasets

griddap lets you request a data subset, graph, or map from a gridded dataset (for example, sea surface temperature data from a satellite), via a specially formed URL. griddap uses the OPeNDAP (external link)

Data Access Protocol (DAP) (external link)

and its projection 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. It makes 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.

griddap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/griddap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/griddap/jplMURSST41.htmlTable?analysed_sst[(2002-06-01T09:00:00Z)][(-89.99):1000:(89.99)][(-179.99):1000:(180.0)]
Thus, the query is often a data variable name (e.g., analysed_sst), followed by [(start):stride:(stop)] (or a shorter variation of that) for each of the variable's dimensions (for example, [time][latitude][longitude]).

For details, see the griddap Documentation.