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Dataset Title:  Top Dataset, pressure, omega.mon.mean (Monthly NCEP/DOE Reanalysis 2), 2.5°,
1979-present
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Institution:  National Centers for Environmental Prediction   (Dataset ID: noaa_esrl_9746_2b95_c7a4)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Make a graph
 
Dimensions ? Start ? Stride ? Stop ?  Size ?    Spacing ?
 time (UTC) ?      475    30 days 10h 25m 49s (uneven)
  < slider >
 level (millibar) ?      17    -61.875 (uneven)
  < slider >
 latitude (degrees_north) ?      73    -2.5 (even)
  < slider >
 longitude (degrees_east) ?      144    2.5 (even)
  < slider >
 
Grid Variables (which always also download all of the dimension variables)
 omega (Monthly Omega on Pressure Levels, Pascal/s) ?

File type: (more info)

(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 2.839968e+8, 1.5304032e+9;
    String avg_period "0000-01-00 00:00:00";
    String axis "T";
    String coordinate_defines "start";
    String delta_t "0000-01-00 00:00:00";
    String ioos_category "Time";
    String long_name "Time";
    String prev_avg_period "0000-00-01 00:00:00";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  level {
    Float32 actual_range 10.0, 1000.0;
    String axis "Z";
    String coordinate_defines "point";
    Int16 GRIB_id 100;
    String GRIB_name "hPa";
    String ioos_category "Pressure";
    String long_name "Level";
    String positive "down";
    String units "millibar";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range -90.0, 90.0;
    String axis "Y";
    String coordinate_defines "point";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range 0.0, 357.5;
    String axis "X";
    String coordinate_defines "point";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  omega {
    Float32 _FillValue -4.002;
    Float32 actual_range -0.6472924, 0.5803314;
    String cell_methods "time: mean (monthly from 6-hourly values)";
    Float64 colorBarMaximum 0.1;
    Float64 colorBarMinimum -0.1;
    String drawLandMask "under";
    Int16 GRIB_id 39;
    String GRIB_name "VVEL";
    String ioos_category "Pressure";
    Int16 least_significant_digit 3;
    String level_desc "Pressure Levels";
    String long_name "Monthly Omega on Pressure Levels";
    Float32 missing_value 61.531;
    String parent_stat "Other";
    Int16 precision 3;
    String standard_name "omega";
    String statistic "Individual Obs";
    String units "Pascal/s";
    Float32 valid_range -4.0, 8.0;
    String var_desc "Omega (dp/dt)";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String comment 
"Data is from 
NCEP/DOE AMIP-II Reanalysis (Reanalysis-2)
(4x/day).  It consists of most variables interpolated to
pressure surfaces from model (sigma) surfaces.";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    String creator_email "Wesley.Ebisuzaki@noaa.gov";
    String creator_name "NOAA NWS NCEP, NCAR";
    String creator_type "institution";
    String creator_url "http://www.cpc.ncep.noaa.gov/products/wesley/reanalysis.html";
    String dataset_title "NCEP-DOE AMIP-II Reanalysis";
    Float64 Easternmost_Easting 357.5;
    Float64 geospatial_lat_max 90.0;
    Float64 geospatial_lat_min -90.0;
    Float64 geospatial_lat_resolution 2.5;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 357.5;
    Float64 geospatial_lon_min 0.0;
    Float64 geospatial_lon_resolution 2.5;
    String geospatial_lon_units "degrees_east";
    String history 
"created 2002/03 by Hoop (netCDF2.3)
2018-08-19T23:08:03Z https://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/ncep.reanalysis2.derived/pressure/omega.mon.mean.nc
2018-08-19T23:08:03Z http://upwell.pfeg.noaa.gov/erddap/griddap/noaa_esrl_9746_2b95_c7a4.das";
    String id "Datasets/ncep.reanalysis2.derived/pressure/omega.mon.mean.nchttps://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/ncep.reanalysis2.derived/pressure/omega.mon.mean.nc";
    String infoUrl "https://www.esrl.noaa.gov/psd/data/gridded/data.ncep.reanalysis2.html";
    String institution "National Centers for Environmental Prediction";
    String keywords "amip, atmosphere, centers, data, dataset, department, doe, energy, environmental, intercomparison, latitude, level, levels, longitude, model, month, monthly, national, ncep, omega, omega.mon.mean, prediction, pressure, project, reanalysis, time, top";
    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 90.0;
    String platform "Model";
    String references "https://www.esrl.noaa.gov/psd/data/gridded/data.ncep.reanalysis2.html";
    String source "NCEP/DOE AMIP-II Reanalysis (Reanalysis-2) Model";
    String source_url "http://www.cpc.ncep.noaa.gov/products/wesley/reanalysis2/";
    String sourceUrl "https://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/ncep.reanalysis2.derived/pressure/omega.mon.mean.nc";
    Float64 Southernmost_Northing -90.0;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String summary 
"Monthly National Centers for Environmental Prediction (NCEP)/Department of Energy (DOE) Reanalysis 2. Data is from 
NCEP/DOE Atmosphere Model Intercomparison Project (AMIP)-II Reanalysis (Reanalysis-2)
(4x/day).  It consists of most variables interpolated to
pressure surfaces from model (sigma) surfaces.";
    String testOutOfDate "now-86days";
    String time_coverage_end "2018-07-01T00:00:00Z";
    String time_coverage_start "1979-01-01T00:00:00Z";
    String title "Top Dataset, pressure, omega.mon.mean (Monthly NCEP/DOE Reanalysis 2), 2.5°, 1979-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.

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.


 
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