Data Access Form

Dataset Title:	NOAA ERSSTv5 (in situ only), 2°, Global, Monthly, 1854-present
Institution:	NOAA/NESDIS/NCEI/CCOG (Dataset ID: nceiErsstv5)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Files \| Make a graph

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Dimensions	Size	Spacing
time (Start Time, UTC)	2050	30 days 10h 38m 50s (uneven)

depth (m)	1	(just one value)

latitude (degrees_north)	89	2.0 (even)

longitude (degrees_east)	180	2.0 (even)

Grid Variables (which always also download all of the dimension variables)

sst (Extended reconstructed sea surface temperature, degree_C)

ssta (Extended reconstructed SST anomalies, degree_C)

File type: (more information)

(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 -3.6605952e+9, 1.7289504e+9;
    String avg_period "0000-01-00";
    String axis "T";
    String calendar "gregorian";
    String delta_t "0000-01-00";
    String ioos_category "Time";
    String long_name "Start 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";
    Float64 actual_range 0.0, 0.0;
    String axis "Z";
    String comment "Actual measurement depth of in situ sea surface temperature varies from 0.2 to 10 m, but corrected to the nominal depth of buoy at 0.2 m";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range -88.0, 88.0;
    String axis "Y";
    String comment "Uniform grid from -88 to 88 by 2";
    String coordinate_defines "center";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
    Float64 valid_max 88.0;
    Float64 valid_min -88.0;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range 0.0, 358.0;
    String axis "X";
    String comment "Uniform grid from 0 to 358 by 2";
    String coordinate_defines "center";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
    Float64 valid_max 358.0;
    Float64 valid_min 0.0;
  }
  sst {
    Float32 _FillValue NaN;
    Float64 colorBarMaximum 40.0;
    Float64 colorBarMinimum -10.0;
    String coordinates "time lev lat lon";
    String ioos_category "Temperature";
    String long_name "Extended reconstructed sea surface temperature";
    String standard_name "sea_surface_temperature";
    String units "degree_C";
    Float32 valid_max 45.0;
    Float32 valid_min -3.0;
  }
  ssta {
    Float32 _FillValue NaN;
    Float64 colorBarMaximum 4.0;
    Float64 colorBarMinimum -4.0;
    String coordinates "time lev lat lon";
    String ioos_category "Temperature";
    String long_name "Extended reconstructed SST anomalies";
    String units "degree_C";
    Float32 valid_max 12.0;
    Float32 valid_min -12.0;
  }
  NC_GLOBAL {
    String acknowledgment "The NOAA Extended Reconstructed Sea Surface Temperature (ERSST) data are provided by the NOAA National Centers for Environmental Information(NCEI)";
    String cdm_data_type "Grid";
    String climatology "Climatology is based on 1971-2000 SST, Xue, Y., T. M. Smith, and R. W. Reynolds, 2003: Interdecadal changes of 30-yr SST normals during 1871.2000. Journal of Climate, 16, 1601-1612.";
    String comment "SSTs were observed by conventional thermometers in Buckets (in sulated or un-insulated canvas and wooded buckets), Engine Room Intakers, or floats and drifters";
    String contributor_name "Huai-min Zhang";
    String contributor_role "Chief, NOAA/NESDIS/NCEI/CCOG/OSB Ocean Surface Section";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    String creator_email "boyin.huang@noaa.gov";
    String creator_institution "NOAA/NESDIS/NCEI";
    String creator_name "Boyin Huang";
    String creator_type "person";
    String creator_url "https://www.ncdc.noaa.gov";
    String dataset_citation_institution "NOAA/NESDIS/NCEI/CCOG";
    String dataset_citation_product "NOAA ERSSTv5";
    String dataset_citation_url "https://doi.org/10.7289/V5T72FNM";
    String dataset_citation_version "ERSSTv5";
    String dataset_doi "https://doi.org/10.7289/V5T72FNM";
    String date_created "2020-05-15";
    String date_issued "2020-05-15";
    String date_modified "2020-05-15";
    Float64 Easternmost_Easting 358.0;
    String geospatial_bounds "0 -88, 358 88";
    Float64 geospatial_lat_max 88.0;
    Float64 geospatial_lat_min -88.0;
    Float64 geospatial_lat_resolution 2.0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 358.0;
    Float64 geospatial_lon_min 0.0;
    Float64 geospatial_lon_resolution 2.0;
    String geospatial_lon_units "degrees_east";
    String grid_mapping_name "latitude_longitude";
    String history 
"Version 5 based on Version 4
New and revised data files are downloaded on the ~4th day of each month from https://www1.ncdc.noaa.gov/pub/data/cmb/ersst/v5/netcdf/ to NOAA NMFS SWFSC ERD by Bob Simons (erd.data@noaa.gov) in order to re-serve the up-to-date dataset on ERDDAP. The global metadata was lightly edited.
2024-11-21T11:55:29Z (local files)
2024-11-21T11:55:29Z https://coastwatch.pfeg.noaa.gov/erddap/griddap/nceiErsstv5.das";
    String id "gov.noaa.ncdc:C00927";
    String infoUrl "https://www.ncdc.noaa.gov/data-access/marineocean-data/extended-reconstructed-sea-surface-temperature-ersst-v5";
    String institution "NOAA/NESDIS/NCEI/CCOG";
    String instrument "Conventional thermometers";
    String instrument_vocabulary "NCEI";
    String keywords "&gt, anomalies, anomaly, ccog, centers, data, earth, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, environmental, ersstv5, extended, face, global, icoads, information, lev, national, ncei, nesdis, noaa, ocean, oceans, only, reconstructed, satellite, science, sea, service, situ, sst, ssta, sur, surface, temperature, time";
    String keywords_vocabulary "GCMD Science Keywords";
    String license 
"No constraints on data access or use.
        
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 metadata_link "https://doi.org/10.7289/V5T72FNM";
    String naming_authority "gov.noaa.ncei";
    String NCO "netCDF Operators version 4.7.5 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco)";
    Int32 nco_openmp_thread_number 1;
    String necdf_version_id "V4 from GrADS sdfwrite";
    String netcdf_creator_email "boyin.huang@noaa.gov";
    String netcdf_creator_name "Boyin Huang";
    Float64 Northernmost_Northing 88.0;
    String platform "Ship and Buoy SSTs from ICOADS R3.0.2 and Argo SSTs from CCOG";
    String platform_vocabulary "NCEI";
    String processing_level "NOAA Level 4";
    String product_version "Version v5";
    String project "NOAA Extended Reconstructed Sea Surface Temperature (ERSST)";
    String publisher_email "boyin.huang@noaa.gov";
    String publisher_institution "NCEI";
    String publisher_name "Boyin Huang";
    String publisher_type "person";
    String publisher_url "https://www.ncdc.noaa.gov";
    String references "Huang et al, 2017: Extended Reconstructed Sea Surface Temperatures Version 5 (ERSSTv5): Upgrades, Validations, and Intercomparisons. Journal of Climate, https://doi.org/10.1175/JCLI-D-16-0836.1";
    String source "In situ data: ICOADS R3.0 before 2016, ICOADS R3.0.2 from 2016 to present, and Argo SST from 1999 to present. Ice data: HadISST2 ice before 2015, and NCEP ice after 2015.";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing -88.0;
    String spatial_resolution "2.0 degree grid";
    String standard_name_vocabulary "CF Standard Name Table (v40, 25 January 2017)";
    String summary 
"The Extended Reconstructed Sea Surface Temperature (ERSST) dataset is a global monthly sea surface temperature dataset derived from the International Comprehensive Ocean-Atmosphere Dataset (ICOADS). It is produced on a 2° × 2° grid with spatial completeness enhanced using statistical methods. This monthly analysis begins in January 1854 continuing to the present and includes anomalies computed with respect to a 1971-2000 monthly climatology.

This is the newest version of ERSST, version 5";
    String time_coverage_duration "P1M";
    String time_coverage_end "2024-10-15T00:00:00Z";
    String time_coverage_resolution "P1M";
    String time_coverage_start "1854-01-01T00:00:00Z";
    String title "NOAA ERSSTv5 (in situ only), 2°, Global, Monthly, 1854-present";
    Float64 Westernmost_Easting 0.0;
  }
}

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://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.