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ERDDAP > griddap > Make A Graph ?

Dataset Title:  USEAST Subscribe RSS
Institution:  ???   (Dataset ID: NSCU)
Information:  Summary ? | License ? | Metadata | Background (external link) | Data Access Form
 
Graph Type:  ?
X Axis:  ?
Y Axis:  ?
Color:  ?
 
Dimensions ?    Start ?    Stop ?
time (UTC) ?
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    -
< slider >
s_rho ?     specify just 1 value →
    << -
< <
eta_rho (count) ?     specify just 1 value →
    << -
< <
xi_rho (count) ?     specify just 1 value →
    << -
< <
 
Graph Settings
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Color Bar:   Continuity:   Scale: 
   Minimum:   Maximum:   N Sections: 
Y Axis Minimum:   Maximum:   Ascending: 
 
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[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:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.4225004e+9, 1.4269824e+9;
    String axis "T";
    String calendar "gregorian";
    String ioos_category "Time";
    String long_name "Forecast time for ForecastModelRunCollection";
    Float64 missing_value NaN;
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  s_rho {
    String _CoordinateAxisType "GeoZ";
    String _CoordinateTransformType "Vertical";
    String _CoordinateZisPositive "up";
    Float64 actual_range -0.986111111111111, -0.013888888888888888;
    String field "s_rho, scalar";
    String formula_terms "s: s_rho C: Cs_r eta: zeta depth: h depth_c: hc";
    String ioos_category "Location";
    String long_name "S-coordinate at RHO-points";
    String positive "up";
    String standard_name "ocean_s_coordinate_g2";
    Float64 valid_max 0.0;
    Float64 valid_min -1.0;
  }
  eta_rho {
    Int16 actual_range 0, 481;
    String ioos_category "Location";
    String long_name "eta rho";
    String units "count";
  }
  xi_rho {
    Int16 actual_range 0, 401;
    String ioos_category "Location";
    String long_name "xi rho";
    String units "count";
  }
  salt {
    Float32 _FillValue 0.0;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String field "salinity, scalar, series";
    String ioos_category "Salinity";
    String long_name "Salinity";
    String standard_name "sea_water_salinity";
    String time "ocean_time";
    String units "1e-3";
  }
  temp {
    Float32 _FillValue 0.0;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String field "temperature, scalar, series";
    String ioos_category "Temperature";
    String long_name "potential temperature";
    String standard_name "sea_water_potential_temperature";
    String time "ocean_time";
    String units "degree_Celsius";
  }
  w {
    Float32 _FillValue 0.0;
    Float64 colorBarMaximum 0.3;
    Float64 colorBarMinimum -0.3;
    String field "w-velocity, scalar, series";
    String ioos_category "Sea Level";
    String long_name "vertical momentum component";
    String standard_name "upward_sea_water_velocity_assuming_no_tide";
    String time "ocean_time";
    String units "m.s-1";
  }
  u_rho {
    Float64 _FillValue 1.0e+37;
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String ioos_category "Currents";
    String long_name "Zonal Current";
    String standard_name "eastward_sea_water_velocity";
    String units "m.s-1";
  }
  v_rho {
    Float64 _FillValue 1.0e+37;
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String ioos_category "Currents";
    String long_name "Meridional Current";
    String standard_name "northward_sea_water_velocity";
    String units "m.s-1";
  }
  NC_GLOBAL {
    String _CoordSysBuilder "ucar.nc2.dataset.conv.CF1Convention";
    String ana_file "ROMS/Functionals/ana_btflux.h, ROMS/Functionals/ana_hmixcoef.h, ROMS/Functionals/ana_nudgcoef.h, ROMS/Functionals/ana_stflux.h";
    String avg_base "ocean_avg";
    String bry_file "Projects/useast/bry.nc";
    String cdm_data_type "Grid";
    String clm_file "Projects/useast/clm.nc";
    String code_dir "/he_data/he/jbzambon/coawst_forecast_v2";
    String compiler_command "/usr/local/apps/mvapich/1.2rc1-em64t/pgi105/bin/mpif90";
    String compiler_flags " -fastsse -Mipa=fast -tp k8-64 -Mfree";
    String compiler_system "pgi";
    String Conventions "CF-1.6, _Coordinates, COARDS, Unidata Dataset Discovery v1.0";
    String CPP_options "useast, ADD_FSOBC, ADD_M2OBC, ATM_PRESS, ANA_BSFLUX, ANA_BTFLUX, ANA_SMFLUX, ANA_SSFLUX, ANA_STFLUX, ASSUMED_SHAPE, ATM2OCN_FLUXE AVERAGES, COARE_TAYLOR_YELLAND, CURVGRID, DJ_GRADPS, DOUBLE_PRECISION, EAST_FSCHAPMAN, EAST_M2FLATHER, EAST_M3NUDGING, EAST_M3RADIATION, EAST_TNUDGING, EAST_TRADIATION, INLINE_2DIO, KANTHA_CLAYSON, M3CLIMATOLOGY, M3CLM_NUDGING, MASKING, MCT_LIB, MIX_GEO_TS, MIX_S_UV, MPI, MY25_MIXING, NONLINEAR, NONLIN_EOS, NORTHERN_WALL, N2S2_HORAVG, POWER_LAW, PROFILE, K_GSCHEME, RADIATION_2D, !RST_SINGLE, SALINITY, SOLVE3D, SOUTHERN_WALL, SPLINES, SPONGE, SSH_TIDES, STATIONS, SWAN_COUPLING, TCLIMATOLOGY, TCLM_NUDGING, TS_U3HADVECTION, TS_C4VADVECTION, TS_DIF2, TS_PSOURCE, UV_ADV, UV_COR, UV_U3HADVECTION, UV_C4VADVECTION, UV_QDRAG, UV_PSOURCE, UV_TIDES, UV_VIS2, VAR_RHO_2D, VISC_GRID, WAVES_OCEAN, WESTERN_WALL, WRF_COUPLING";
    String cpu "x86_64";
    String file "ocean_his_0001.nc";
    String grd_file "Projects/useast/USeast-grid.nc";
    String header_dir "/he_data/he/jbzambon/coawst_forecast_v2/Projects/useast";
    String header_file "useast.h";
    String his_base "ocean_his";
    String history 
"Fri Mar 20 09:42:49 2015: ncatted -a standard_name,u_rho,o,c,eastward_sea_water_velocity -a standard_name,v_rho,o,c,northward_sea_water_velocity post_processed/us_east_forecast_model_run_collection_best_218.nc
Fri Mar 20 09:42:46 2015: ncatted -a coordinates,u_rho,o,c,time s_rho lon_rho lat_rho -a _FillValue,u_rho,o,d,1.e+37 -a units,u_rho,o,c,meter second-1 -a long_name,u_rho,o,c,u-momentum component -a coordinates,v_rho,o,c,time s_rho lon_rho lat_rho -a _FillValue,v_rho,o,d,1.e+37 -a units,v_rho,o,c,meter second-1 -a long_name,v_rho,o,c,v-momentum component post_processed/us_east_forecast_model_run_collection_best_218.nc
Fri Mar 20 09:42:43 2015: ncks -q -A -v u_rho,v_rho /tmp/tmpregridded_22264.nc post_processed/us_east_forecast_model_run_collection_best_218.nc
Thu Mar 19 18:37:08 2015: ncks -d time,218,218 http://omgsrv1.meas.ncsu.edu:8080/thredds/dodsC/fmrc/us_east/US_East_Forecast_Model_Run_Collection_best.ncd processed/us_east_forecast_model_run_collection_best_218.nc
ROMS/TOMS, Version 3.4, Monday - February 9, 2015 -  1:36:18 PM ;
FMRC Best Dataset
2018-07-22T02:37:15Z (local files)
2018-07-22T02:37:15Z http://erddap.axiomdatascience.com/griddap/NSCU.das";
    String infoUrl "???";
    String ini_file "Projects/useast/ini.nc";
    String institution "???";
    String keywords "assuming, circulation, component, current, currents, density, Earth Science > Oceans > Ocean Circulation > Ocean Currents, Earth Science > Oceans > Ocean Temperature > Potential Temperature, Earth Science > Oceans > Salinity/Density > Salinity, eastward, eastward_sea_water_velocity, level, meridional, momentum, northward, northward_sea_water_velocity, ocean, oceans, potential, salinity, sea, sea level, sea_water_potential_temperature, sea_water_salinity, seawater, temperature, tide, upward, upward_sea_water_velocity_assuming_no_tide, useast, velocity, vertical, water, zonal";
    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.";
    String location "Proto fmrc:US_East_Forecast_Model_Run_Collection";
    String Metadata_Conventions "CF-1.6, _Coordinates, COARDS, Unidata Dataset Discovery v1.0";
    String NCO "4.4.8";
    String os "Linux";
    String rst_file "ocean_rst.nc";
    String script_file "Projects/useast/ocean_useast.in";
    String sourceUrl "(local files)";
    String spos_file "Projects/useast/stations.in";
    String sta_file "ocean_sta.nc";
    String standard_name_vocabulary "CF-12";
    String summary "USEAST";
    String svn_rev "exported";
    String svn_url "https://www.myroms.org/svn/omlab/branches/jcwarner";
    String tiling "003x006";
    String time_coverage_end "2015-03-22T00:00:00Z";
    String time_coverage_start "2015-01-29T03:00:00Z";
    String title "USEAST";
    String type "ROMS/TOMS history file";
  }
}

 

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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