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ERDDAP > griddap > Make a Graph

Dataset Title:  SST, Pathfinder Ver 5.0, Day and Night, Global, Science Quality (Monthly Composite)
Dataset ID:  erdPHsstamday
Institution:  NOAA CoastWatch, West Coast Node
Information:  Summary | Variables | Background | Data Access Form  

Graph Type: 
X Axis: 
Y Axis: 
Color: 

Dimension Ranges    Start    Stop
time (UTC)     specify just 1 value →
   
altitude (m)     specify just 1 value →
   
latitude (degrees_north)
   
   
longitude (degrees_east)
   
   

Graph Settings
Color Bar:    Continuity:    Scale:
      Min:    Max:    N Sections:
Draw the land mask:

Then set the File Type: and
  or view the URL:
    The graph you specified. Please be patient. It may take a long time to get data from the source.

Things You Can Do With Your Graphs

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 4.747248e+8, 1.1978064e+9;
    String axis "T";
    Int32 fraction_digits 0;
    String ioos_category "Time";
    String long_name "Centered 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";
    Int32 fraction_digits 0;
    String ioos_category "Location";
    String long_name "Altitude";
    String positive "up";
    String standard_name "altitude";
    String units "m";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range -89.97803, 89.97803;
    String axis "Y";
    String coordsys "geographic";
    Int32 fraction_digits 3;
    String ioos_category "Location";
    String long_name "Latitude";
    String point_spacing "even";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range 0.02197266, 359.978;
    String axis "X";
    String coordsys "geographic";
    Int32 fraction_digits 3;
    String ioos_category "Location";
    String long_name "Longitude";
    String point_spacing "even";
    String standard_name "longitude";
    String units "degrees_east";
  }
  sst {
    Float32 _FillValue -9999999.0;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String coordsys "geographic";
    Int32 fraction_digits 1;
    String ioos_category "Temperature";
    String long_name "Sea Surface Temperature";
    Float32 missing_value -9999999.0;
    String standard_name "sea_surface_temperature";
    String units "degree_C";
  }
  NC_GLOBAL {
    String acknowledgement "NOAA NESDIS COASTWATCH, NOAA SWFSC ERD";
    String cdm_data_type "Grid";
    String composite "true";
    String contributor_name "NOAA NODC";
    String contributor_role "Source of level 2 data.";
    String Conventions "COARDS, CF-1.0, Unidata Dataset Discovery v1.0";
    String creator_email "dave.foley@noaa.gov";
    String creator_name "NOAA CoastWatch, West Coast Node";
    String creator_url "http://coastwatch.pfel.noaa.gov";
    String date_created "2008-07-08Z";
    String date_issued "2008-07-08Z";
    Float64 Easternmost_Easting 359.978;
    Float64 geospatial_lat_max 89.97803;
    Float64 geospatial_lat_min -89.97803;
    Float64 geospatial_lat_resolution 0.0439453137973138;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 359.978;
    Float64 geospatial_lon_min 0.02197266;
    Float64 geospatial_lon_resolution 0.04394530916127457;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 0.0;
    Float64 geospatial_vertical_min 0.0;
    String geospatial_vertical_positive "up";
    String geospatial_vertical_units "m";
    String history 
"NOAA NODC
2008-07-08T23:35:09Z NOAA CoastWatch (West Coast Node) and NOAA SFSC ERD
2009-02-17 http://192.168.31.18/thredds/dodsC/satellite/PH/ssta/mday
2009-02-17 http://coastwatch.pfeg.noaa.gov/griddap/erdPHsstamday.das";
    String infoUrl "http://coastwatch.pfel.noaa.gov/infog/PH_ssta_las.html";
    String institution "NOAA CoastWatch, West Coast Node";
    String keywords "EARTH SCIENCE > Oceans > Ocean Temperature > Sea Surface Temperature";
    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, 
CoastWatch, 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.pfel.coastwatch";
    Float64 Northernmost_Northing 89.97803;
    String origin "NOAA NODC";
    String processing_level "3";
    String project "CoastWatch (http://coastwatch.noaa.gov/)";
    String projection "geographic";
    String projection_type "mapped";
    String references "Pathfinder project: http://www.nodc.noaa.gov/sog/pathfinder4km/ .";
    String satellite "POES";
    String sensor "AVHRR";
    String source "satellite observation: POES, AVHRR";
    String sourceUrl "http://192.168.31.18/thredds/dodsC/satellite/PH/ssta/mday";
    Float64 Southernmost_Northing -89.97803;
    String standard_name_vocabulary "CF-1.0";
    String summary 
"AVHRR Pathfinder Oceans Project seeks to create a long-term, continuous sea 
surface temperature data series for use in climate research.  The Pathfinder 
SST data begins with historic AVHRR Global Area Coverage SST.  This data is 
re-evaluated and re-calibrated, improving both the accuracy and number of 
valid SST values (due to improved cloud-masking).";
    String title 
"SST, Pathfinder Ver 5.0, Day and Night, Global, Science Quality (Monthly 
Composite)";
    Float64 Westernmost_Easting 0.02197266;
  }
}

 

Using griddap to Request Data and Graphs from Gridded Datasets

griddap lets you request gridded data (for example, environmental data from satellites) and graphs of gridded data, via specially formed URLs.
The URLs specify everything: the dataset, the desired file type for the response, and the subset of data that you want to receive.
You can form these URLs by hand or with a computer program,
or (much easier) you can use the dataset's "Data Access Form" (oriented to requests for data)
or the dataset's "Make A Graph" form (oriented to requests for graphs and maps),
both of which generate the URL when the form is submitted.
griddap is a superset of the OPeNDAP DAP hyperslab protocol.

griddap request URLs must be in the form
   http://coastwatch.pfeg.noaa.gov/erddap/griddap/ datasetID fileType {?query}
For example,
   http://coastwatch.pfeg.noaa.gov/erddap/griddap/erdBAssta5day.htmlTable?sst[(2007-10-21T00:00:00)][0][(-75):100:(75)][(180):100:(360)]

For details, see the griddap Documentation.
 
ERDDAP Version 1.12

Questions, comments, suggestions? Contact bob dot simons at noaa dot gov.
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