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Dataset Title:  Top Dataset, annual, salt.raw5deg (NODC World Ocean Atlas 1998), 5.0°, 0001 Subscribe RSS
Institution:  CSIRO, NOAA NCEI OCL   (Dataset ID: noaa_esrl_3ae0_912b_6325)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Make a graph
 
Dimensions ? Start ? Stride ? Stop ?  Size ?    Spacing ?
 time (UTC) ?      1    (just one value)
  < slider >
 depth (m) ?      33    171.875 (uneven)
  < slider >
 latitude (degrees_north) ?      36    -5.0 (even)
  < slider >
 longitude (degrees_east) ?      72    5.0 (even)
  < slider >
 
Grid Variables (which always also download all of the dimension variables)
 salt (Ocean Salinity, unanalyzed, 5-deg grid, Annual, g/kg) ?

File type: (more info)

(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 -6.21357696e+10, -6.21357696e+10;
    String avg_period "0097-00-00 00:00:00";
    String axis "T";
    String delta_t "0001-00-00 00:00:00";
    String ioos_category "Time";
    String long_name "Time";
    Float64 ltm_range 693597.0, 729026.0;
    String prev_avg_period "0000-01-00 00:00:00";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 actual_range 0.0, 5500.0;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String source_name "level";
    String standard_name "depth";
    String units "m";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range -87.5, 87.5;
    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 2.5, 357.5;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  salt {
    Float32 actual_range 0.2011, 40.9345;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String ioos_category "Salinity";
    String level_desc "Multiple Levels";
    String long_name "Ocean Salinity, unanalyzed, 5-deg grid, Annual";
    Float32 missing_value -9.96921e+36;
    String parent_stat "Individual Observations";
    String standard_name "sea_water_absolute_salinity";
    String statistic "Mean";
    String units "g/kg";
    Float32 valid_range 0.0, 100.0;
    String var_desc "Ocean Salinity, unanalyzed";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "OCL.help@noaa.gov";
    String creator_name "CSIRO, NOAA NCEI OCL";
    String creator_type "institution";
    String creator_url "https://www.nodc.noaa.gov/access/oceanclimate.html";
    String dataset_title "NODC (Levitus) World Ocean Atlas 1998";
    Float64 Easternmost_Easting 357.5;
    Float64 geospatial_lat_max 87.5;
    Float64 geospatial_lat_min -87.5;
    Float64 geospatial_lat_resolution 5.0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 357.5;
    Float64 geospatial_lon_min 2.5;
    Float64 geospatial_lon_resolution 5.0;
    String geospatial_lon_units "degrees_east";
    String history 
"created February 2000 by Hoop
2018-07-21T00:26:00Z https://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/nodc.woa98/salinity/annual/salt.raw5deg.nc
2018-07-21T00:26:00Z http://upwell.pfeg.noaa.gov/erddap/griddap/noaa_esrl_3ae0_912b_6325.das";
    String id "Datasets/nodc.woa98/salinity/annual/salt.raw5deg.nchttps://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/nodc.woa98/salinity/annual/salt.raw5deg.nc";
    String infoUrl "https://www.esrl.noaa.gov/psd/data/gridded/data.nodc.woa98.html";
    String institution "CSIRO, NOAA NCEI OCL";
    String keywords "5-deg, absolute, annual, atlas, center, centers, climate, commonwealth, csiro, data, dataset, depth, environmental, grid, industrial, information, laboratory, latitude, longitude, national, ncei, nesdis, noaa, nodc, ocean, oceanographic, ocl, organisation, research, salinity, salt, salt.raw5deg, scientific, sea, sea_water_absolute_salinity, seawater, time, top, unanalyzed, water, woa, world";
    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 87.5;
    String platform "Marine Analyses";
    String references "https://www.esrl.noaa.gov/psd/data/gridded/data.nodc.woa98.html";
    String sourceUrl "https://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/nodc.woa98/salinity/annual/salt.raw5deg.nc";
    Float64 Southernmost_Northing -87.5;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String summary "National Oceanographic Data Center (NODC) World Ocean Atlas 1998 (Top Dataset, annual, salt.raw5deg)";
    String time_coverage_end "0001-01-01T00:00:00Z";
    String time_coverage_start "0001-01-01T00:00:00Z";
    String title "Top Dataset, annual, salt.raw5deg (NODC World Ocean Atlas 1998), 5.0°, 0001";
    Float64 Westernmost_Easting 2.5;
  }
}

 

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.

griddap request URLs must be in the form
https://upwell.pfeg.noaa.gov/erddap/griddap/datasetID.fileType{?query}
For example,
https://upwell.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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