Make A Graph

Dataset Title:	GOES 24-Hour Spike Filter and UD Declouding Composite
Institution:	Rutgers University, University of Delaware (Dataset ID: goes_24h_composite)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Data Access Form

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Graph Type:
X Axis:
Y Axis:
Color:

Dimensions

Start

Stop

time (UTC)

specify just 1 value →

depth (m)

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 1.6409952e+9, 1.7156448e+9;
    String axis "T";
    String calendar "gregorian";
    String comment "timestamp denotes end time of composite";
    String ioos_category "Time";
    Float64 least_significant_digit 0;
    String long_name "EPOCH Time";
    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, 0.0;
    String axis "Z";
    String comment "all measurements are at surface";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String source_name "z";
    String standard_name "depth";
    String units "m";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 34.30193, 43.18903;
    String axis "Y";
    String comment "subset of the GOES NOAA SST grid";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -80.49615, -68.50815;
    String axis "X";
    String comment "subset of the GOES NOAA SST grid";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  sst {
    Float32 _FillValue -999.0;
    String ancillary_variables "included_images, sst_qc_flag";
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String comment "composite of data output originally from http://basin.ceoe.udel.edu/thredds/dodsC/GOESNOAASST.nc, http://robots.ceoe.udel.edu/erddap/griddap/spike_filter";
    String ioos_category "Temperature";
    String long_name "cold-water preserving sea surface temperature";
    String platform "platform";
    String short_name "sst";
    String source "GOES-16";
    String standard_name "sea_surface_temperature";
    String units "degree_C";
  }
  sst_qc_flag {
    Int32 _FillValue -1;
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String comment "placeholder for future quality control measures";
    String ioos_category "Quality";
    String long_name "sea surface temperature quality control flag";
    String standard_name "sea_surface_temperature_status_flag";
  }
  NC_GLOBAL {
    String acknowledgement "This product supported by the Board of Public Utilities.";
    String cdm_data_type "Grid";
    String contributor_name "Scott Glenn, Travis Miles, Michael Crowley, Matthew Oliver, Matthew Shatley, Laura Nazzaro, Lori Garzio";
    String contributor_role "Principal Investigator, Principal Investigator, Satellite Operations, Principal Investigator, Data Manager, Data Manager, Data Manager";
    String Conventions "CF-1.6, ACDD-1.3, COARDS";
    String creator_email "nazzaro@marine.rutgers.edu";
    String creator_name "Laura Nazzaro";
    String creator_type "person";
    String creator_url "rucool.marine.rutgers.edu";
    String date_created "May-14-2024 04:15 GMT";
    String date_modified "May-14-2024 04:15 GMT";
    Float64 Easternmost_Easting -68.50815;
    Float64 geospatial_lat_max 43.18903;
    Float64 geospatial_lat_min 34.30193;
    Float64 geospatial_lat_resolution 0.01810000000000001;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -68.50815;
    Float64 geospatial_lon_min -80.49615;
    Float64 geospatial_lon_resolution 0.018;
    String geospatial_lon_units "degrees_east";
    String history 
"Created May-14-2024 04:15 GMT
2024-05-18T12:41:16Z (local files)
2024-05-18T12:41:16Z http://ruwrf-archive.marine.rutgers.edu/griddap/goes_24h_composite.das";
    String infoURL "https://rucool.marine.rutgers.edu/; https://sites.udel.edu/ceoe-moliver/";
    String infoUrl "https://rucool.marine.rutgers.edu/;";
    String institution "Rutgers University, University of Delaware";
    String ioos_regional_association "MARACOOS";
    String keywords "cold, cold-water, cold-water-preserving, composite, control, data, delaware, earth, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, environmental, flag, forecasting, geostationary, goes, goes-16, model, ocean, oceans, operational, preserving, quality, research, rutgers, satellite, science, sea, sea_surface_temperature, sea_surface_temperature_status_flag, seawater, sst, sst_qc_flag, status, surface, temperature, time, university, water, weather, wrf";
    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.";
    String naming_authority "edu.rutgers.marine";
    Float64 Northernmost_Northing 43.18903;
    String processing_level "composite using GOES data stacked in the following order (top to bottom):  goes_hourly_May-13-2024T23:30 goes_hourly_May-13-2024T22:30 goes_hourly_May-13-2024T21:30 goes_hourly_May-13-2024T20:30 goes_hourly_May-13-2024T19:30 goes_hourly_May-13-2024T18:30 goes_hourly_May-13-2024T17:30 goes_hourly_May-13-2024T16:30 goes_hourly_May-13-2024T15:30 goes_hourly_May-13-2024T14:30 goes_hourly_May-13-2024T13:30 goes_hourly_May-13-2024T12:30 goes_hourly_May-13-2024T11:30 goes_hourly_May-13-2024T10:40 goes_hourly_May-13-2024T09:30 goes_hourly_May-13-2024T08:30 goes_hourly_May-13-2024T07:30 goes_hourly_May-13-2024T06:30 goes_hourly_May-13-2024T05:30 goes_hourly_May-13-2024T04:30 goes_hourly_May-13-2024T03:30 goes_hourly_May-13-2024T02:30 goes_hourly_May-13-2024T02:05 spike_filter_May-13-2024T18:30 spike_filter_May-13-2024T17:30 spike_filter_May-13-2024T16:30 spike_filter_May-13-2024T15:30 spike_filter_May-13-2024T14:30 spike_filter_May-13-2024T13:30 spike_filter_May-13-2024T12:30 spike_filter_May-13-2024T11:30 spike_filter_May-13-2024T10:40 spike_filter_May-13-2024T09:30 spike_filter_May-13-2024T08:30 spike_filter_May-13-2024T07:30 spike_filter_May-13-2024T06:30 spike_filter_May-13-2024T05:30 spike_filter_May-13-2024T04:30 spike_filter_May-13-2024T03:30 spike_filter_May-13-2024T02:05";
    String publisher_email "nazzaro@marine.rutgers.edu";
    String publisher_name "Laura Nazzaro";
    String publisher_type "person";
    String publisher_url "rucool.marine.rutgers.edu";
    String references "https://rucool.marine.rutgers.edu/; https://sites.udel.edu/ceoe-moliver/; https://www.sciencedirect.com/science/article/pii/S0034425721002054";
    String sea_name "Mid-Atlantic Bight";
    String source "GOES-16";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 34.30193;
    String standard_name_vocabulary "CF Standard Name Table v52";
    String summary "This daily product is a combination of Geostationary Operational Environmental Satellite (GOES)-16 composites designed specifically for ingestion in the the RU-Weather Research and Forecasting Model (WRF) wind model. The specific products and methodology used throughout the time-series will vary; check individual file attributes and/or included_images variable for details on specific composites (products included, time period included, etc). A 24-hour GOES composite using traditional declouding will always be included if available. When relevant, particularly during summer (upwelling) and fall (storm mixing), composites based on spike-filter declouding following Murphy et al. (2021), or gap-filled DinEOF reconstructions based on the spike-filtered data, will also be included in this product. The spike filter method of declouding relies on detection of fast-moving clouds and is more likely to preserve anomalously cold water (e.g. due to upwelling or storm mixing events) than traditional declouding methods.";
    String testOutOfDate "now-1day";
    String time_coverage_end "2024-05-14T00:00:00Z";
    String time_coverage_start "2022-01-01T00:00:00Z";
    String title "GOES 24-Hour Spike Filter and UD Declouding Composite";
    Float64 Westernmost_Easting -80.49615;
  }
}

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://coastwatch.pfeg.noaa.gov/erddap/griddap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/griddap/jplMURSST.htmlTable?analysed_sst[(2015-06-09T09:00:00Z)][(-89.9945):1000:(89.9945)][(-179.995):1000:(179.995)]
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.