Data Access Form

Dataset Title:	4x daily NMC reanalysis (pressure, hgt.mon.3 10)
Institution:	NOAA NCEP, NCAR (Dataset ID: noaa_pmel_e26d_5ab7_c185)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Make a graph

Dimensions	Size	Spacing
time (UTC)	12	30 days 8h 43m 38s (uneven)

level (millibar)	2	-250.0 (even)

latitude (degrees_north)	73	-2.5 (even)

longitude (degrees_east)	144	2.5 (even)

Grid Variables (which always also download all of the dimension variables)
hgt (3-10 Day Longterm Mean Filtered Standard Deviation by Month of Geopotential Height, m)

File type: more info
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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range -6.21357696e+10, -6.2106912e+10;
    String avg_period "0008-00-00 00:00:00";
    String axis "T";
    String delta_t "0000-01-00 00:00:00";
    String ioos_category "Time";
    String long_name "Time";
    Float64 ltm_range 1.7338824e+7, 1.7487096e+7;
    String prev_avg_period "0000-00-00 06:00:00";
    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 500.0, 250.0;
    String axis "Z";
    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 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 ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  hgt {
    String _CoordinateAxes "time level lat lon";
    Float32 actual_range 3.542505, 88.45274;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String dataset "CDC Derived NCEP Reanalysis Products";
    String drawLandMask "under";
    Int16 GRIB_id 7;
    String GRIB_name "HGT";
    String ioos_category "Statistics";
    Int16 least_significant_digit 0;
    String level_desc "Multiple levels";
    String long_name 
"3-10 Day Longterm Mean Filtered Standard Deviation by Month of Geopotential
Height";
    Float32 missing_value -9.96921E36;
    String parent_stat "Other";
    Int16 precision 0;
    String statistic "Long Term Mean";
    String units "m";
    Float32 valid_range -700.0, 35000.0;
    String var_desc "Geopotential height";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String Conventions "COARDS, CF-1.6, Unidata Dataset Discovery v1.0";
    String creator_email "Wesley.Ebisuzaki@noaa.gov";
    String creator_name "NOAA NCEP, NCAR";
    String creator_url "http://www.cpc.ncep.noaa.gov/products/wesley/reanalysis.html";
    String description 
"Data from NCEP initialized reanalysis (4x/day).  These are interpolated to
pressure surfaces from model (sigma) surfaces.";
    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 
"/home/hoop/crdc/cpreanjuke2farm/cpreanjuke2farm Tue Oct 17 20:07:08 1995 from
hgt.85.nc
created 95/02/06 by Hoop (netCDF2.3)
2013-02-28T01:08:06Z http://ferret.pmel.noaa.gov/geoide/dodsC/Datasets/ncep.reanalysis.derived/pressure/hgt.mon.3_10.nc
2013-02-28T01:08:06Z http://upwell.pfeg.noaa.gov/erddap/griddap/noaa_pmel_e26d_5ab7_c185.das";
    String infoUrl "http://ferret.pmel.noaa.gov/geoide/dodsC/Datasets/ncep.reanalysis.derived/pressure/hgt.mon.3_10.nc.html";
    String institution "NOAA NCEP, NCAR";
    String keywords 
"3-10, daily, day, deviation, filtered, geopotential, height, hgt.mon.3,
longterm, mean, month, ncar, ncep, nmc, noaa, pressure, reanalysis, standard,
statistics";
    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 Metadata_Conventions "COARDS, CF-1.6, Unidata Dataset Discovery v1.0";
    Float64 Northernmost_Northing 90.0;
    String platform "Model";
    String references "http://www.esrl.noaa.gov/psd/data/gridded/data.ncep.reanalysis.derived.html";
    String sourceUrl "http://ferret.pmel.noaa.gov/geoide/dodsC/Datasets/ncep.reanalysis.derived/pressure/hgt.mon.3_10.nc";
    Float64 Southernmost_Northing -90.0;
    String standard_name_vocabulary "CF-12";
    String summary 
"Data from NCEP initialized reanalysis (4x/day).  These are interpolated to
pressure surfaces from model (sigma) surfaces.";
    String time_coverage_end "0001-12-01T00:00:00Z";
    String time_coverage_start "0001-01-01T00:00:00Z";
    String title "4x daily NMC reanalysis (pressure, hgt.mon.3 10)";
    Float64 Westernmost_Easting 0.0;
  }
}

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The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file
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(not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by
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griddap request URLs must be in the form
http://upwell.pfeg.noaa.gov/erddap/griddap/datasetID.fileType{?query}
For example,
http://upwell.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 variable name (e.g., sst),
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(for example, [time][altitude][latitude][longitude]),
with your desired (start):stride:(stop) values within each [].

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