Make A Graph

Dataset Title:	COADS Surface Marine Observations (1854-1993), 2.0°
Institution:	NOAA PMEL (Dataset ID: noaa_pmel_d8cb_24b8_baae)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Data Access Form

To work correctly, this web page requires that JavaScript be enabled in your browser. Please:
1) Enable JavaScript in your browser:
      • Chrome: "Settings : Advanced : Privacy and security : Site Settings : JavaScript"
      • Firefox: (it should be always on!)"
      • Opera: "Settings : Websites : JavaScript"
      • Safari: "Safari : Preferences : Security : Enable JavaScript"
2) Reload this web page.

Graph Type:
X Axis:
Y Axis:
Color:

Dimensions

Start

Stop

time (UTC)

specify just 1 value →

latitude (degrees_north)

longitude (degrees_east)

Graph Settings
Color Bar:	Continuity:	Scale:
Minimum:	Maximum:	N Sections:
Draw land mask:
Y Axis Minimum:	Maximum:

(Please be patient. It may take a while to get the data.)

Optional:
Then set the File Type: (File Type information)
and

or view the URL:
(Documentation / Bypass this form

)

Click on the map to specify a new center point.

Zoom:

[The graph you specified. Please be patient.]

Things You Can Do With Your Graphs

Well, you can do anything you want with your graphs, of course. But some things you might not have considered are:

Web page authors can embed a graph of the latest data in a web page using HTML <img> tags.
Anyone can use ERDDAPs Slide Sorter to build a personal web page that displays graphs with the latest data (or other images or HTML content), each in its own, draggable slide.

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range -3.6593856e+9, 7.559136e+8;
    String axis "T";
    String edges "TIMEedges";
    String ioos_category "Time";
    String long_name "Time";
    String point_spacing "uneven";
    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";
    Float64 actual_range -89.0, 89.0;
    String axis "Y";
    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 1.0, 359.0;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String point_spacing "even";
    String standard_name "longitude";
    String units "degrees_east";
  }
  AIR {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 40.0;
    Float64 colorBarMinimum -10.0;
    String history "From all_coads_grid";
    String ioos_category "Temperature";
    String long_name "Air Temperature";
    Float32 missing_value -1.0e+34;
    String standard_name "air_temperature";
    String units "deg C";
  }
  CLDC {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 1.0;
    Float64 colorBarMinimum 0.0;
    String history "From all_coads_grid";
    String ioos_category "Meteorology";
    String long_name "Cloudiness";
    Float32 missing_value -1.0e+34;
    String standard_name "cloud_area_fraction";
    String units "okta";
  }
  LFLX {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 250.0;
    Float64 colorBarMinimum -250.0;
    String history "From all_coads_grid";
    String ioos_category "Heat Flux";
    String long_name "Latent Heat Parameter";
    Float32 missing_value -1.0e+34;
    String standard_name "surface_downward_latent_heat_flux";
    String units "grams/kg m/s";
  }
  NAIR {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String history "From all_coads_grid";
    String ioos_category "Statistics";
    String long_name "Number of air obs";
    Float32 missing_value -1.0e+34;
  }
  NCLDC {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String history "From all_coads_grid";
    String ioos_category "Statistics";
    String long_name "Number of cldc obs";
    Float32 missing_value -1.0e+34;
  }
  NLFLX {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String history "From all_coads_grid";
    String ioos_category "Statistics";
    String long_name "Number of lflx obs";
    Float32 missing_value -1.0e+34;
  }
  NRHUM {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String history "From all_coads_grid";
    String ioos_category "Statistics";
    String long_name "Number of rhum obs";
    Float32 missing_value -1.0e+34;
  }
  NSFLX {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String history "From all_coads_grid";
    String ioos_category "Statistics";
    String long_name "Number of sflx obs";
    Float32 missing_value -1.0e+34;
  }
  NSHUM {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String history "From all_coads_grid";
    String ioos_category "Statistics";
    String long_name "Number of shum obs";
    Float32 missing_value -1.0e+34;
  }
  NSLP {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String history "From all_coads_grid";
    String ioos_category "Statistics";
    String long_name "Number of slp obs";
    Float32 missing_value -1.0e+34;
  }
  NSST {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String history "From all_coads_grid";
    String ioos_category "Statistics";
    String long_name "Number of sst obs";
    Float32 missing_value -1.0e+34;
  }
  NUSTR {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String history "From all_coads_grid";
    String ioos_category "Statistics";
    String long_name "Number of ustr obs";
    Float32 missing_value -1.0e+34;
  }
  NUWND {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String history "From all_coads_grid";
    String ioos_category "Statistics";
    String long_name "Number of uwnd obs";
    Float32 missing_value -1.0e+34;
  }
  NVSTR {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String history "From all_coads_grid";
    String ioos_category "Statistics";
    String long_name "Number of vstr obs";
    Float32 missing_value -1.0e+34;
  }
  NVWND {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String history "From all_coads_grid";
    String ioos_category "Statistics";
    String long_name "Number of vwnd obs";
    Float32 missing_value -1.0e+34;
  }
  NWSPD {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String history "From all_coads_grid";
    String ioos_category "Statistics";
    String long_name "Number of wspd obs";
    Float32 missing_value -1.0e+34;
  }
  RHUM {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String history "From all_coads_grid";
    String ioos_category "Meteorology";
    String long_name "Relative Humidity";
    Float32 missing_value -1.0e+34;
    String standard_name "relative_humidity";
    String units "percent";
  }
  SFLX {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 250.0;
    Float64 colorBarMinimum -250.0;
    String history "From all_coads_grid";
    String ioos_category "Heat Flux";
    String long_name "Sensible Heat Parameter";
    Float32 missing_value -1.0e+34;
    String standard_name "surface_downward_sensible_heat_flux";
    String units "deg C m/s";
  }
  SHUM {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 30.0;
    Float64 colorBarMinimum 0.0;
    String history "From all_coads_grid";
    String ioos_category "Meteorology";
    String long_name "Specific Humidity";
    Float32 missing_value -1.0e+34;
    String standard_name "specific_humidity";
    String units "gm/kg";
  }
  SLP {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 1050.0;
    Float64 colorBarMinimum 950.0;
    String history "From all_coads_grid";
    String ioos_category "Pressure";
    String long_name "Sea Level Pressure";
    Float32 missing_value -1.0e+34;
    String standard_name "surface_air_pressure";
    String units "mb";
  }
  SST {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String history "From all_coads_grid";
    String ioos_category "Temperature";
    String long_name "Sea Surface Temperature";
    Float32 missing_value -1.0e+34;
    String standard_name "sea_surface_temperature";
    String units "deg C";
  }
  USTR {
    Float32 _FillValue -1.0e+34;
    String history "From all_coads_grid";
    String ioos_category "Physical Oceanography";
    String long_name "Zonal Pseudostress";
    Float32 missing_value -1.0e+34;
    String units "m**/s**2";
  }
  UWND {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum -15.0;
    String history "From all_coads_grid";
    String ioos_category "Wind";
    String long_name "Zonal Wind";
    Float32 missing_value -1.0e+34;
    String standard_name "eastward_wind";
    String units "m/s";
  }
  VSTR {
    Float32 _FillValue -1.0e+34;
    String history "From all_coads_grid";
    String ioos_category "Physical Oceanography";
    String long_name "Meridional Pseudostress";
    Float32 missing_value -1.0e+34;
    String units "m**/s**2";
  }
  VWND {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum -15.0;
    String history "From all_coads_grid";
    String ioos_category "Wind";
    String long_name "Meridional Wind";
    Float32 missing_value -1.0e+34;
    String standard_name "northward_wind";
    String units "m/s";
  }
  WSPD {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum 0.0;
    String history "From all_coads_grid";
    String ioos_category "Wind";
    String long_name "Wind Speed";
    Float32 missing_value -1.0e+34;
    String standard_name "wind_speed";
    String units "m/s";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "pmel.info@noaa.gov";
    String creator_name "NOAA PMEL";
    String creator_type "institution";
    String creator_url "https://www.pmel.noaa.gov/";
    Float64 Easternmost_Easting 359.0;
    Float64 geospatial_lat_max 89.0;
    Float64 geospatial_lat_min -89.0;
    Float64 geospatial_lat_resolution 2.0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 359.0;
    Float64 geospatial_lon_min 1.0;
    Float64 geospatial_lon_resolution 2.0;
    String geospatial_lon_units "degrees_east";
    String history 
"FERRET V4.11 (debug/no GUI) 19-Nov-95FERRET V4.20 (debug/no GUI) 12-Mar-96
2024-04-27T11:53:22Z https://data.pmel.noaa.gov/pmel/thredds/dodsC/coads
2024-04-27T11:53:22Z http://upwell.pfeg.noaa.gov/griddap/noaa_pmel_d8cb_24b8_baae.das";
    String id "coads";
    String infoUrl "https://data.pmel.noaa.gov/pmel/thredds/dodsC/coads.html";
    String institution "NOAA PMEL";
    String keywords "1854-1993, air, air_temperature, amount, area, atmosphere, atmospheric, budget, cldc, cloud, cloud cover, cloud_area_fraction, cloudiness, clouds, coads, comprehensive, cover, data, downward, earth, Earth Science > Atmosphere > Atmospheric Pressure > Surface Pressure, Earth Science > Atmosphere > Atmospheric Radiation > Heat Flux, Earth Science > Atmosphere > Atmospheric Temperature > Air Temperature, Earth Science > Atmosphere > Atmospheric Temperature > Surface Air Temperature, Earth Science > Atmosphere > Atmospheric Water Vapor > Humidity, Earth Science > Atmosphere > Atmospheric Winds > Surface Winds, Earth Science > Atmosphere > Clouds > Cloud Amount/Frequency, Earth Science > Oceans > Ocean Heat Budget > Heat Flux, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, eastward, eastward_wind, environmental, flux, fraction, frequency, heat, heat flux, humidity, icoads, international, laboratory, latent, latitude, level, lflx, longitude, marine, meridional, meteorology, NAIR, NCLDC, NLFLX, noaa, northward, northward_wind, NRHUM, NSFLX, NSHUM, NSLP, NSST, number, NUSTR, NUWND, NVSTR, NVWND, NWSPD, obs, observations, ocean, oceanography, oceans, pacific, parameter, physical, physical oceanography, pmel, pressure, pseudostress, radiation, relative, relative_humidity, rhum, science, sea, sea_surface_temperature, seawater, sensible, set, sflx, shum, slp, specific, specific_humidity, speed, sst, statistics, surface, surface_air_pressure, surface_downward_latent_heat_flux, surface_downward_sensible_heat_flux, temperature, time, ustr, uwnd, vapor, vstr, vwnd, water, wind, wind_speed, winds, wspd, zonal";
    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, 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 89.0;
    String sourceUrl "https://data.pmel.noaa.gov/pmel/thredds/dodsC/coads";
    Float64 Southernmost_Northing -89.0;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "Comprehensive Ocean Atmosphere Data Set (COADS) Surface Marine Observations (1854-1993)";
    String time_coverage_end "1993-12-15T00:00:00Z";
    String time_coverage_start "1854-01-15T00:00:00Z";
    String title "COADS Surface Marine Observations (1854-1993), 2.0°";
    Float64 Westernmost_Easting 1.0;
  }
}

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.

(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://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.