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Dataset Title:  Ice Concentration, NOAA S-NPP VIIRS, Near Real-Time, Polar
Stereographic (South), Daily
  RSS
Institution:  NOAA NESDIS STAR   (Dataset ID: noaacwVIIRSnppiceconcSP06Daily)
Information:  Summary ? | License ? | Metadata | Background | Make a graph
 
Dimensions ? Start ? Stride ? Stop ?  Size ?    Spacing ?
 time (UTC) ?      151    1 day 5h 3m 0s (uneven)
  < slider >
 altitude (m) ?      1    (just one value)
  < slider >
 rows (km) ?      8192    -0.795 (even)
  < slider >
 cols (km) ?      8192    0.795 (even)
  < slider >
 
Grid Variables (which always also download all of the dimension variables)
 IceConc (Ice Concentration, percent) ?

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 1.552687955e+9, 1.568374943e+9;
    String axis "T";
    String bounds "time_bounds";
    String calendar "gregorian";
    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";
  }
  altitude {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "up";
    Float64 actual_range 0.0, 0.0;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Altitude";
    String positive "up";
    String standard_name "altitude";
    String units "m";
  }
  rows {
    Float64 actual_range -3255.9225, 3255.9225;
    String ioos_category "Location";
    String standard_name "projection_y_coordinate";
    String units "km";
  }
  cols {
    Float64 actual_range -3255.9225, 3255.9225;
    String ioos_category "Location";
    String standard_name "projection_x_coordinate";
    String units "km";
  }
  IceConc {
    Float32 _FillValue -999.0;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String coordinates "longitude latitude";
    Int32 cw%3afraction_digits 16;
    String grid_mapping "polar_stereographic_proj";
    String ioos_category "Ice Distribution";
    String long_name "Ice Concentration";
    Float32 missing_value -999.0;
    String units "percent";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    String creator_url "https://coastwatch.noaa.gov";
    String cw%3acwhdf_version "3.1";
    Int32 cw%3agctp_datum 12;
    Float64 cw%3agctp_parm 0.0, 0.0, 0.0, 0.0, -1.8e+8, -6.0e+7, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0;
    Int32 cw%3agctp_sys 6;
    Int32 cw%3agctp_zone 0;
    String cw%3aorbit_type "ascending/descending";
    Int32 cw%3apass_date 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151, 18151;
    String cw%3apass_type "day/night";
    Float64 cw%3apolygon_latitude -47.76339414830053, -56.05956231016224, -59.4727020347941, -56.05956231016224, -47.76339414830053, -56.05956231016224, -59.4727020347941, -56.05956231016224, -47.76339414830053, -56.05956231016224, -59.4727020347941, -56.05956231016224, -47.76339414830053, -56.05956231016224, -59.4727020347941, -56.05956231016224, -47.76339414830053;
    Float64 cw%3apolygon_longitude 135.0, 153.43494882292202, -180.0, -153.43494882292202, -135.0, -116.56505117707799, -90.0, -63.43494882292201, -45.0, -26.56505117707799, 0.0, 26.56505117707799, 45.0, 63.43494882292201, 90.0, 116.56505117707799, 135.0;
    String cw%3aprojection "Polar Stereographic";
    String cw%3asatellite "S-NPP";
    String cw%3asensor "VIIRS";
    Float64 cw%3astart_time 2909.0, 2994.0, 3080.0, 3165.0, 3250.0, 3336.0, 3421.0, 3507.0, 3592.0, 3677.0, 3763.0, 3848.0, 3934.0, 4019.0, 4104.0, 4190.0, 4275.0, 4361.0, 9054.0, 9140.0, 9225.0, 9311.0, 9396.0, 9481.0, 9567.0, 9652.0, 9738.0, 9823.0, 9994.0, 10079.0, 10165.0, 10250.0, 10335.0, 10421.0, 10506.0, 15115.0, 15200.0, 15285.0, 15371.0, 15456.0, 15542.0, 15627.0, 15712.0, 15798.0, 15883.0, 15969.0, 16054.0, 16139.0, 16308.0, 16394.0, 16479.0, 16565.0, 21175.0, 21260.0, 21346.0, 21431.0, 21516.0, 21602.0, 21687.0, 21856.0, 21942.0, 22027.0, 22112.0, 22198.0, 22283.0, 22369.0, 22454.0, 22539.0, 22625.0, 27404.0, 27489.0, 27575.0, 27660.0, 27746.0, 27831.0, 27916.0, 28002.0, 28087.0, 28173.0, 28258.0, 28343.0, 28429.0, 28514.0, 28600.0, 28685.0, 28770.0, 33379.0, 33464.0, 33550.0, 33635.0, 33720.0, 33806.0, 33891.0, 33977.0, 34062.0, 34147.0, 34233.0, 34318.0, 34404.0, 34489.0, 34574.0, 34660.0, 34745.0, 34831.0, 39439.0, 39524.0, 39610.0, 39695.0, 39781.0, 39866.0, 39951.0, 40037.0, 40122.0, 40208.0, 40293.0, 40378.0, 40464.0, 40549.0, 40635.0, 40720.0, 40805.0, 40891.0, 45585.0, 45670.0, 45841.0, 45926.0, 46012.0, 46097.0, 46182.0, 46268.0, 46353.0, 46439.0, 46524.0, 46693.0, 46778.0, 46864.0, 46949.0, 47035.0, 51645.0, 51730.0, 51986.0, 52072.0, 52241.0, 52326.0, 52668.0, 52839.0, 52924.0, 53009.0, 57789.0, 57874.0, 57959.0, 58045.0, 58130.0, 58216.0, 58301.0, 58386.0, 58472.0, 58557.0, 58643.0, 58728.0, 58813.0, 58899.0, 58984.0, 59070.0, 59155.0, 63849.0, 63934.0, 64020.0, 64105.0, 64190.0, 64276.0, 64361.0, 64447.0, 64532.0, 64617.0, 64703.0, 64788.0, 64874.0, 64959.0, 65044.0, 65130.0, 65215.0, 65301.0, 69909.0, 69994.0, 70080.0, 70165.0, 70251.0, 70336.0, 70421.0, 70507.0, 70592.0, 70678.0, 70763.0, 70848.0, 70934.0, 71019.0, 71105.0, 71190.0, 71275.0, 71361.0, 75969.0, 76055.0, 76140.0, 76225.0, 76311.0, 76396.0, 76482.0, 76567.0, 76652.0, 76738.0, 76823.0, 76909.0, 76994.0, 77163.0, 77248.0, 77334.0, 77419.0, 77505.0, 82115.0, 82200.0, 82286.0, 82371.0, 82456.0, 82542.0, 82711.0, 82796.0, 82882.0, 82967.0, 83052.0, 83138.0, 83223.0, 83309.0, 83394.0, 83479.0, 83565.0;
    Int32 cw%3aswath_sync_lines 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16;
    Float64 cw%3atemporal_extent 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 85.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0, 84.0, 84.0, 84.0, 85.0, 84.0;
    String cw%3aviirs_band_naming_convention "IDPS";
    String cw_satellite "S-NPP";
    String defaultGraphQuery "IceConc%5B(time_coverage_end)%5D%5B(0.0)%5D%5B(3255.9225):(-3255.9225)%5D%5B(-3255.9225):(3255.9225)%5D&.draw=surface&.vars=cols%7Crows%7CIceConc&.colorBar=KT_ice%7C%7C%7C%7C%7C&.bgColor=0xffccccff";
    Float64 geospatial_vertical_max 0.0;
    Float64 geospatial_vertical_min 0.0;
    String geospatial_vertical_positive "up";
    String geospatial_vertical_units "m";
    String history 
"JRR Ice Concentration v2r0
2019-09-15T13:47:33Z https://coastwatch.noaa.gov/thredds/dodsC/CoastWatch/VIIRS/npp/IceConc/DailySector/SP06
2019-09-15T13:47:33Z https://coastwatch.noaa.gov/erddap/griddap/noaacwVIIRSnppiceconcSP06Daily.das";
    String identifier_product_doi_authority "https://dx.doi.org";
    String infoUrl "https://coastwatch.noaa.gov";
    String institution "NOAA NESDIS STAR";
    String keywords "Earth Science > Cryosphere > Sea Ice > Sea Ice Concentration, Earth Science > Oceans > Sea Ice > Sea Ice Concentration";
    String keywords_vocabulary "GCMD Science Keywords";
    String license 
"https://science.nasa.gov/earth-science/earth-science-data/data-information-policy/ 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 naming_authority "gov.noaa.coastwatch";
    String OBSERVED_PROPERTY "IceConc";
    String source "NPP_VIIRS_IceConc";
    String sourceUrl "https://coastwatch.noaa.gov/thredds/dodsC/CoastWatch/VIIRS/npp/IceConc/DailySector/SP06";
    String standard_name_vocabulary "CF Standard Name Table v29";
    String summary "Enterprise Ice Concentration/ Ice Mask/ Ice Surface Temperature Products";
    String time_coverage_end "2019-09-13T11:42:23Z";
    String time_coverage_start "2019-03-15T22:12:35Z";
    String title "Ice Concentration, NOAA S-NPP VIIRS, Near Real-Time, Polar Stereographic (South), Daily";
  }
}

 

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://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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