Make A Graph

Dataset Title:	CDR Leaf Area and Fraction of Absorbed Photosynthetically Active Radiation, Preliminary lat_bnds By latitude, nv
Institution:	NASA/GSFC/SED/ESD/HBSL/TIS/MODIS-LAND > MODIS Land Science Team, Terrestrial Information Systems, Hydrospheric and Biospheric Science Laboratory, Earth Sciences Division, Science and Exploration Directorate, GSFC, NASA (Dataset ID: cdr_lai_fapar_prelim_by_latitude_nv)
Information:	Summary \| License \| Metadata \| Background \| Data Access Form

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Graph Type:
X Axis:
Y Axis:
Color:

Dimensions

Start

Stop

latitude (degrees_north)

nv (count)

specify just 1 value →

Graph Settings

Marker Type:

Size:

Color:

Color Bar:

Continuity:

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Minimum:

Maximum:

N Sections:

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:
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X range:
[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 {
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range -89.97499, 89.975;
    String axis "Y";
    String bounds "lat_bnds";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  nv {
    Int16 actual_range 0, 1;
    String units "count";
  }
  lat_bnds {
  }
  NC_GLOBAL {
    String _CoordSysBuilder "ucar.nc2.dataset.conv.CF1Convention";
    String cdm_data_type "Grid";
    String cdr_variable "LAI, FAPAR";
    String Conventions "CF-1.4, ACDD-1.3";
    String date_created "2023-11-13T21:21:25Z";
    Float64 geospatial_lat_max 89.975;
    Float64 geospatial_lat_min -89.97499;
    String geospatial_lat_units "degrees_north";
    String history 
"FMRC Best Dataset
2024-04-19T09:45:19Z https://www.ncei.noaa.gov/thredds/dodsC/ncFC/cdr/lai-fapar-pre-avh15c1-fc/LAI-FAPAR_preliminary:__Aggregation_best.ncd
2024-04-19T09:45:19Z https://www.ncei.noaa.gov/griddap/cdr_lai_fapar_prelim_by_latitude_nv.das";
    String id "VIIRS-Land_v001-preliminary_NPP15C1_S-NPP_20151015_c20231113212125.nc";
    String identifier_product_doi "10.5067/VIIRS/S-NPP_AVH15C1_NC.001";
    String identifier_product_doi_authority "https://www.doi.org";
    String infoUrl "https://www.ncei.noaa.gov/thredds/catalog/ncFC/cdr/lai-fapar-pre-avh15c1-fc/catalog.html?dataset=ncFC/cdr/lai-fapar-pre-avh15c1-fc/LAI-FAPAR_preliminary:__Aggregation_best.ncd";
    String institution "NASA/GSFC/SED/ESD/HBSL/TIS/MODIS-LAND &gt; MODIS Land Science Team, Terrestrial Information Systems, Hydrospheric and Biospheric Science Laboratory, Earth Sciences Division, Science and Exploration Directorate, GSFC, NASA";
    String Instrument "VIIRS";
    String instrument_vocabulary "Global Change Master Directory (GCMD) Instrument Keywords";
    String keywords "Earth Science > Biosphere > Vegetation > Photosynthetically Active Radiation, Earth Science > Biosphere > Vegetation > Vegetation Index";
    String keywords_vocabulary "NASA Global Change Master Directory (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 LocalGranuleID "VIIRS-Land_v001-preliminary_NPP15C1_S-NPP_20151015_c20231113212125.nc";
    String location "Proto fmrc:LAI-FAPAR_preliminary:__Aggregation";
    String LongName "VIIRS Atmospherically Corrected Leaf Area Index and Fraction of Absorbed Photosynthetically Active Radiation Daily L3 Global 0.05 Deg CMG NetCDF";
    String metadata_link "gov.noaa.ncei:C00898";
    String naming_authority "gov.noaa.ncei";
    Float64 Northernmost_Northing 89.975;
    String platform "S-NPP";
    String platform_vocabulary "Global Change Master Directory (GCMD) Platform Keywords";
    String PostProcessingVersion "2.10";
    String Process "LTDR_GAPS";
    String product_version "v1r0-preliminary";
    String ProductionTime "2023-11-13T21:21:25.000000Z";
    String program "NOAA Climate Data Record Program for satellites";
    String RangeBeginningDate "2015-01-00";
    String RangeBeginningTime "00:00:00.0000";
    String RangeEndingDate "2015-01-00";
    String RangeEndingTime "23:59:59.9999";
    String Satellite "S-NPP";
    String sensor "VIIRS > Visible Infrared Imaging Radiometer Suite";
    String ShortName "S-NPP_AVH15C1_NC";
    String source "BRDFCOR_VNP09CMG.A2015288.001.2017124165259.hdf, LANDCOVER_IGBP_1981_1994.hdf,";
    String sourceUrl "https://www.ncei.noaa.gov/thredds/dodsC/ncFC/cdr/lai-fapar-pre-avh15c1-fc/LAI-FAPAR_preliminary:__Aggregation_best.ncd";
    Float64 Southernmost_Northing -89.97499;
    String spatial_resolution "0.050000 degrees per pixel";
    String standard_name_vocabulary "CF Standard Name Table (v27)";
    String summary "Climate Data Record, preliminary version, Advanced Very High Resolution Radiometer (AVHRR) High Resolution Picture Transmission (HRPT) data from NOAA-18 for 2013, days 364 to 364, processed by the Long-Term Land Data Record (LTDR) project (v3.5.33) into Leaf Area, Fraction of Absorbed Photosynthetically Active Radiation and quality-control flags. lat_bnds Dimensioned By latitude, nv.";
    String title "CDR Leaf Area and Fraction of Absorbed Photosynthetically Active Radiation, Preliminary lat_bnds By latitude, nv";
  }
}

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/erdBAssta5day.htmlTable?sst[(2007-10-21T00:00:00)][0][(-75):100:(75)][(180):100:(360)]
Thus, the query is often a data variable name (e.g., sst), followed by [(start):stride:(stop)] (or a shorter variation of that) for each of the variable's dimensions (for example, [time][altitude][latitude][longitude]).

For details, see the griddap Documentation.

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