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Dataset Title:  GFDL CM2.1, 20C3M, Monthly Ocean Forcing Data, 1860-2000, Run #5, At Depths Subscribe RSS
Institution:  NOAA GFDL   (Dataset ID: gfdlCM2120C3M5OD)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Data Access Form
 
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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:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range -3.4383312e+9, 9.740304e+8;
    String axis "T";
    String calendar "noleap";
    String ioos_category "Time";
    String long_name "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 5.0, 5316.4287109375;
    String axis "Z";
    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 -81.5, 89.5;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range 0.5, 359.5;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  rhopoto {
    Float32 _FillValue 1.0e+20;
    String cell_measures "area:seaarea volume:oceanvol";
    String cell_methods "time: mean";
    Float64 colorBarMaximum 1030.0;
    Float64 colorBarMinimum 1018.0;
    String comment "Note: Values north of 65N have been interpolated from the model's native tripolar grid to a regular grid. Information about the interpolation is available at http://nomads.gfdl.noaa.gov/CM2.X/oceangrid.html. In particular note that the oceanvol field from oceanvol_O1.static.nc must be used to assure conserving volume integrals.";
    String history "At   16:28:45 on 05/10/2006: CMOR altered the data in the following ways: converted from type 'double' to type 'real'; replaced missing value flag (-1.00000E+01) with standard missing value (1.00000E+20);  Cyclical dimension was output starting at a different lon;";
    String ioos_category "Other";
    String long_name "Potential Density";
    Float32 missing_value 1.0e+20;
    String standard_name "sea_water_potential_density";
    String units "kg m-3";
  }
  so {
    Float32 _FillValue 1.0e+20;
    String cell_measures "area:seaarea volume:oceanvol";
    String cell_methods "time: mean";
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String comment "Note: Values north of 65N have been interpolated from the model's native tripolar grid to a regular grid. Information about the interpolation is available at http://nomads.gfdl.noaa.gov/CM2.X/oceangrid.html. In particular note that the oceanvol field from oceanvol_O1.static.nc must be used to assure conserving volume integrals.";
    String history "At   11:44:19 on 05/10/2006: CMOR altered the data in the following ways: converted from type 'double' to type 'real'; replaced missing value flag (-1.00000E+10) with standard missing value (1.00000E+20);  Cyclical dimension was output starting at a different lon;";
    String ioos_category "Salinity";
    String long_name "Sea Water Practical Salinity";
    Float32 missing_value 1.0e+20;
    String standard_name "sea_water_practical_salinity";
    String units "PSU";
  }
  thetao {
    Float32 _FillValue 1.0e+20;
    String cell_measures "area:seaarea volume:oceanvol";
    String cell_methods "time: mean";
    Float64 colorBarMaximum 305.0;
    Float64 colorBarMinimum 273.0;
    String comment "Note: Values north of 65N have been interpolated from the model's native tripolar grid to a regular grid. Information about the interpolation is available at http://nomads.gfdl.noaa.gov/CM2.X/oceangrid.html. In particular note that the oceanvol field from oceanvol_O1.static.nc must be used to assure conserving volume integrals.";
    String history "At   17:48:10 on 05/10/2006: CMOR altered the data in the following ways: converted from type 'double' to type 'real'; replaced missing value flag (-1.00000E+10) with standard missing value (1.00000E+20);  Cyclical dimension was output starting at a different lon;";
    String ioos_category "Temperature";
    String long_name "Potential Temperature";
    Float32 missing_value 1.0e+20;
    String standard_name "sea_water_potential_temperature";
    String units "K";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    Float32 cmor_version 0.94;
    String comment "GFDL experiment name = CM2.1U-D4_1860-2000-AllForc_H5. PCMDI experiment name = 20C3M (run5). Initial conditions for this experiment were taken from 1 January of year 161 of the 1860 control model experiment named CM2.1U_Control-1860_D4. Several forcing agents varied during the 140 year duration of the CM2.1U-D4_1860-2000-AllForc_H5 experiment in a manner based upon observations and reconstructions for the late 19th and 20th centuries. The time varying forcing agents were atmospheric CO2, CH4, N2O, halons, tropospheric and stratospheric O3, anthropogenic tropospheric sulfates, black and organic carbon, volcanic aerosols, solar irradiance, and the distribution of land cover types. The direct effect of tropospheric aerosols is calculated by the model, but not the indirect effects.";
    String contact "GFDL.Climate.Model.Info@noaa.gov";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    Float64 Easternmost_Easting 359.5;
    String experiment_id "climate of the 20th Century experiment (20C3M)";
    Float64 geospatial_lat_max 89.5;
    Float64 geospatial_lat_min -81.5;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 359.5;
    Float64 geospatial_lon_min 0.5;
    Float64 geospatial_lon_resolution 1.0;
    String geospatial_lon_units "degrees_east";
    String gfdl_experiment_name "CM2.1U-D4_1860-2000-AllForc_H5";
    String history 
"Tue Oct 24 14:39:46 2006: ncks -O -d time,0,119 /vftmp/218048.1.ic1.a//archive/pcmdi/data1/gfdl_cm2_1/CM2.1U-D4_1860-2000-AllForc_H5/pp/ocean_interp/ts/monthly/rhopoto_O1.186101-200012.nc /vftmp/218048.1.ic1.a//archive/pcmdi/data1/gfdl_cm2_1/CM2.1U-D4_1860-2000-AllForc_H5/pp/ocean_interp/ts/monthly/rhopoto_O1.186101-187012.nc
  At 16:28:45 on 05/10/2006, CMOR rewrote data to comply with CF standards and IPCC Fourth Assessment and US CCSP Projects requirements
2018-02-24T04:26:46Z http://data1.gfdl.noaa.gov:9192/opendap/gfdl_cm2_1/CM2.1U-D4_1860-2000-AllForc_H5/pp/ocean_interp/ts/monthly/rhopoto_O1.186101-187012.nc
2018-02-24T04:26:46Z http://coastwatch.pfeg.noaa.gov/griddap/gfdlCM2120C3M5OD.das";
    String infoUrl "http://nomads.gfdl.noaa.gov/CM2.X/";
    String institution "NOAA GFDL";
    String keywords "1860-2000, 20c3m, cm2.1, data, density, depths, Earth Science > Atmosphere > Atmospheric Pressure > Surface Pressure, Earth Science > Atmosphere > Atmospheric Temperature > Surface Air Temperature, Earth Science > Atmosphere > Atmospheric Winds > Surface Winds, Earth Science > Atmosphere > Atmospheric Winds > Wind Stress, Earth Science > Oceans > Ocean Heat Budget > Heat Flux, Earth Science > Oceans > Ocean Temperature > Potential Temperature, Earth Science > Oceans > Ocean Temperature > Water Temperature, Earth Science > Oceans > Salinity/Density > Potential Density, Earth Science > Oceans > Salinity/Density > Salinity, forcing, gfdl, monthly, noaa, ocean, oceans, potential, run, salinity, sea, sea_water_potential_density, sea_water_potential_temperature, sea_water_practical_salinity, seawater, temperature, water";
    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 89.5;
    String project_id "IPCC Fourth Assessment and US CCSP Projects";
    Int32 realization 5;
    String references "The GFDL Data Portal (http://nomads.gfdl.noaa.gov/) provides access to NOAA/GFDL's publicly available model input and output data sets. From this web site one can view and download data sets and documentation, including those related to the GFDL CM2.1 model experiments run for the IPCC's 4th Assessment Report and the US CCSP.";
    String source "GFDL_CM2.1 (2004): atmosphere: AM2.1 (am2p13fv, M45L24); ocean: OM3.1 (mom4p1p7_om3p5, tripolar360x200L50); sea ice: SIS; land: LM2; infrastructure: FMS preK release";
    String sourceUrl "http://data1.gfdl.noaa.gov:9192/opendap/gfdl_cm2_1/CM2.1U-D4_1860-2000-AllForc_H5/pp/ocean_interp/ts/monthly/rhopoto_O1.186101-187012.nc";
    Float64 Southernmost_Northing -81.5;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String summary 
"This is monthly ocean forcing data, 1860-2000, run #5, from the NOAA Geophysical Fluid Dynamics Laboratory's (GFDL) CM2.1 climate model, specifically: GFDL CM2.1, 20C3M (run5) climate of the 20th Century experiment (20C3M) output for IPCC AR4 and US CCSP.

In 2004, a new family of GFDL climate models (the CM2.x family) was first used to conduct climate research. The GFDL CM2.x models have become the workhorse model for GFDL's climate research. They are being applied to topics focusing on decadal-to-centennial (deccen) time scale issues (including multi-century control experiments and climate change projections), as well as to seasonal-to-interannual (si) problems, such as El Niño research and experimental forecasts.";
    String table_id "Table O1 (7 September 2004)";
    String time_coverage_end "2000-11-12T12:00:00Z";
    String time_coverage_start "1861-01-16T12:00:00Z";
    String title "GFDL CM2.1, 20C3M, Monthly Ocean Forcing Data, 1860-2000, Run #5, At Depths";
    Float64 Westernmost_Easting 0.5;
  }
}

 

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.

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.


 
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