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Dataset Title: | GRDC MEAN MONTHLY DISCHARGE (MQ) - CHEMISTRY |
Institution: | GRDC (Dataset ID: GRDC_MEAN_MONTHLY_DISCHARGE_CHEMISTRY) |
Information: | Summary | License | Metadata | Background | Subset | Files | Make a graph |
Attributes { s { GRDCno { String long_name "GRDC number"; } time { String _CoordinateAxisType "Time"; Float64 actual_range -5.17536e+9, 1.5513984e+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 time_precision "1970-01-01T00:00:00Z"; String units "seconds since 1970-01-01T00:00:00Z"; } Original { Float32 _FillValue -999.0; Float32 actual_range 0.0, 14520.0; String long_name "original (provided) data"; } Calculated { Float32 _FillValue -999.0; Float32 actual_range 0.0, 14673.33; String long_name "GRDC calculated from daily data"; } Flag { String _Unsigned "false"; Byte actual_range 0, 100; String long_name "percentage of valid values used for calculation from daily data"; } } NC_GLOBAL { String cdm_data_type "Other"; String Conventions "COARDS, CF-1.6, ACDD-1.3"; String creator_name "GRDC"; String creator_type "institution"; String creator_url "https://www.bafg.de/GRDC/EN/01_GRDC/grdc_node.html"; String history "2024-11-21T08:49:17Z (local files) 2024-11-21T08:49:17Z http://erddap.emodnet-physics.eu/erddap/tabledap/GRDC_MEAN_MONTHLY_DISCHARGE_CHEMISTRY.html"; String infoUrl "https://www.bafg.de/GRDC/EN/01_GRDC/grdc_node.html"; String institution "GRDC"; String keywords "calculated, data, discharge, flag, grdc, grdcno, hh_mm, identifier, mean, month, monthly, original, time, yyyy, yyyy-mm-dd"; String license "Creative Commons Attribution Share-Alike http://www.opendefinition.org/licenses/cc-by-sa"; String sourceUrl "(local files)"; String standard_name_vocabulary "CF Standard Name Table v55"; String subsetVariables "GRDCno"; String summary "GRDC Mean Monthly Discharge (mq). GRDC data from a local source. CHEMISTRY"; String time_coverage_end "2019-03-01T00:00:00Z"; String time_coverage_start "1806-01-01T00:00:00Z"; String title "GRDC MEAN MONTHLY DISCHARGE (MQ) - CHEMISTRY"; } }
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.