ERDDAP > griddap > Data Access Form

Dataset Title:	EMODnet Physics - Total Suspended Matter - GridSeriesObservation - Concentration of total suspended matter - River regions of interest
Institution:	CNR-GOS   (Dataset ID: TSM_RROI)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Files | Make a graph

 

Dimensions	Start	Stride	Stop	Size	Spacing
time (reference time, UTC)				2186	1 day 0h 3m 18s (uneven)
latitude (degrees_north)				445	0.002699054 (even)
longitude (degrees_east)				426	0.003753035 (even)

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

TSMNN

File type: (more information) .largePdf - View a large .pdf image file with a graph or map. .pdf - View a standard, medium-sized .pdf image file with a graph or map. .nccsv - Download a NetCDF-3-like 7-bit ASCII NCCSV .csv file with COARDS/CF/ACDD metadata. .ncml - View the dataset's structure and metadata as a UTF-8 NCML .xml file. .esriAscii - Download an ISO-8859-1 ESRI ASCII file (latitude longitude data only; longitude must be all below or all above 180). .kml - View a Google Earth .kml file (for latitude, longitude data only). .csv0 - Download a ISO-8859-1 .csv file without column names or units. Times are ISO 8601 strings. .csv - Download a ISO-8859-1 comma-separated text table (line 1: names; line 2: units; ISO 8601 times). .xhtml - View a UTF-8 XHTML (XML) file with the data in a table. Times are ISO 8601 strings. .htmlTable - View a UTF-8 .html web page with the data in a table. Times are ISO 8601 strings. .ncoJson - Download a UTF-8 NCO lvl=2 JSON file with COARDS/CF/ACDD metadata. .ncHeader - View the UTF-8 header (the metadata) for the NetCDF-3 .nc file. .geotif - View a grayscale GeoTIFF .tif file (for latitude longitude data; longitude must be all below or all above 180). .parquet - Download as a parquet file. Metadata contains column names ("column_names") and units ("column_units"). .nc - Download a NetCDF-3 binary file with COARDS/CF/ACDD metadata. .asc - View OPeNDAP-style ISO-8859-1 comma-separated text. .jsonlCSV1 - View a UTF-8 JSON Lines CSV file with column names on line 1 (mv = 'null'; times are ISO 8601 strings). .csvp - Download a ISO-8859-1 .csv file with line 1: name (units). Times are ISO 8601 strings. .json - View a table-like UTF-8 JSON file (missing value = 'null'; times are ISO 8601 strings). .smallPng - View a small .png image file with a graph or map. .fgdc - View the dataset's UTF-8 FGDC .xml metadata. .tsv0 - Download a ISO-8859-1 .tsv file without column names or units. Times are ISO 8601 strings. .itx - Download an ISO-8859-1 Igor Text File. Each axis variable and each data variable becomes a wave. .wav - Download a .wav audio file. All columns must be numeric and of the same type. .odvTxt - Download time,latitude,longitude,otherVariables as an ODV Generic Spreadsheet File (.txt). .largePng - View a large .png image file with a graph or map. .png - View a standard, medium-sized .png image file with a graph or map. .smallPdf - View a small .pdf image file with a graph or map. .timeGaps - View a UTF-8 list of gaps in the time values which are larger than the median gap. .iso19115 - View the dataset's ISO 19115-2/19139 UTF-8 .xml metadata. .parquetWMeta - Download as a parquet file. Metadata contains column names ("column_names") and units ("column_units"). .mat - Download a MATLAB binary file. .nccsvMetadata - View the dataset's metadata as the top half of a 7-bit ASCII NCCSV .csv file. .jsonlCSV - View a UTF-8 JSON Lines CSV file without column names (mv = 'null'; times are ISO 8601 strings). .jsonlKVP - View a UTF-8 JSON Lines file with Key:Value pairs (missing value = 'null'; times are ISO 8601 strings). .tsv - Download a ISO-8859-1 tab-separated text table (line 1: names; line 2: units; ISO 8601 times). .dods - OPeNDAP clients use this to download the data in the DODS binary format. .das - View the dataset's metadata via an ISO-8859-1 OPeNDAP Dataset Attribute Structure (DAS). .transparentPng - View a .png image file (just the data, without axes, landmask, or legend). .tsvp - Download a ISO-8859-1 .tsv file with line 1: name (units). Times are ISO 8601 strings. .dds - View the dataset's structure via an ISO-8859-1 OPeNDAP Dataset Descriptor Structure (DDS).

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.4832288e+9, 1.6724448e+9;
    String axis "T";
    String calendar "Gregorian";
    String ioos_category "Time";
    String long_name "reference 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";
    Float32 actual_range 44.40081, 45.59919;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range 29.00139, 30.59643;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  TSMNN {
    Float32 _FillValue -999.0;
    String applied_flags "(WATER, INLAND_WATER) and not (CLOUD, CLOUD_AMBIGUOUS, CLOUD_MARGIN, INVALID, COSMETIC, SATURATED, SUSPECT, HISOLZEN, HIGHGLINT, SNOW_ICE, ADJAC, OCNN_FAIL)";
    String band_name "OLCI band name TSM_NN";
    String long_name "TSMNN";
    String source "OLCI - Level2";
  }
  NC_GLOBAL {
    String area "bs";
    String cdm_data_type "Grid";
    String contact "technical@gos.artov.isac.cnr.it";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    String creation_date "2022-05-01";
    String creation_time "15:52:49 UTC";
    String creator_email "technical@gos.artov.isac.cnr.it";
    String creator_name "TECHNICAL";
    String creator_type "institution";
    Float64 Easternmost_Easting 30.59643;
    Float64 geospatial_lat_max 45.59919;
    Float64 geospatial_lat_min 44.40081;
    Float64 geospatial_lat_resolution 0.0026990540540540544;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 30.59643;
    Float64 geospatial_lon_min 29.00139;
    Float64 geospatial_lon_resolution 0.003753035294117649;
    String geospatial_lon_units "degrees_east";
    String grid_mapping "Equirectangular";
    String grid_resolution "0.3 km";
    String history 
"Mon May 30 11:56:20 2022: /usr/bin/ncks -O -d lon,29.0,30.6 -d lat,44.4,45.6 -v TSMNN /DataArchive/OC/OLCI/daily_3.01//2017/345/O2017345-tsmnn-bs-fr.nc /store3/snapshot/data2/2017/345/O2017345-tsmnn-dan-fr.nc
2025-10-25T21:13:04Z (local files)
2025-10-25T21:13:04Z http://erddap.emodnet-physics.eu/erddap/griddap/TSM_RROI.das";
    String infoUrl "https://map.emodnet-physics.eu/";
    String institution "CNR-GOS";
    String keywords "cnr, cnr-gos, council, data, gos, local, national, research, source, time, tsmnn";
    String license "Creative Commons Attribution Share-Alike http://www.opendefinition.org/licenses/cc-by-sa";
    String mosaic "/home/gosuser/Processing/OC_PROC_EIS202112/s3olciProcessing/s3olcimosaic.py";
    String NCO "netCDF Operators version 4.7.5 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco)";
    String netcdf_version "v4";
    String noQI "No climatatology data available for tsmnn variable";
    Float64 Northernmost_Northing 45.59919;
    String platform "Sentinel3A+B";
    String product_level "L3";
    String product_version "v02";
    String reproject "/home/gosuser/Processing/OC_PROC_EIS202112/s3olciProcessing/s3olciL2proc.py";
    String sensor "Ocean and Land Colour Instrument";
    String sensor_name "OLCIA+B";
    String site_name "BS";
    String software_name "GOS Processing chain";
    String source "surface observation";
    String source_files "Oa2017345-tsmnn-bs-fr.nc";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 44.40081;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "EMODnet Physics - Total Suspended Matter - GridSeriesObservation - Concentration of total suspended matter - River regions of interest";
    String time_coverage_end "2022-12-31T00:00:00Z";
    String time_coverage_start "2017-01-01T00:00:00Z";
    String timeliness "NT";
    String title "EMODnet Physics - Total Suspended Matter - GridSeriesObservation - Concentration of total suspended matter - River regions of interest";
    Float64 Westernmost_Easting 29.00139;
  }
}

 

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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 Data Access Protocol (DAP) and its projection constraints.

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.

 

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