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Dataset Title:  PMEL Atmospheric Chemistry CALNEX 5 minute data Subscribe RSS
Institution:  PMEL Atmospheric Chemistry   (Dataset ID: dsg_5min_eccd_aae3_4ad6)
Range: longitude = -122.9813 to -117.1439°E, latitude = 32.63186 to 38.5634°N, time = 2010-05-14T12:00:00Z to 2010-06-08T11:55:00Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | 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 {
 s {
  traj {
    Float64 actual_range 1.0, 1.0;
    String axis "E";
    String long_name "Traj";
    String point_spacing "even";
  }
  id {
    String cf_role "trajectory_id";
    String long_name "trajectory id";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.2738384e+9, 1.2759981000000002e+9;
    String axis "T";
    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";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 _FillValue -1.0e+34;
    Float32 actual_range -122.9813, -117.1439;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    Int32 epic_code 502;
    String FORTRAN_format "f10.4";
    String gap_value "-9999";
    String generic_name "lon";
    String history "From CALNEX_AMS_v0_copy";
    String instr_id "GPS";
    String ioos_category "Location";
    String long_name "Longitude";
    String max_value "360";
    String min_value "-180";
    Float32 missing_value -1.0e+34;
    String name "LON";
    String note_01 "UNCERTAINTY=+/-0.001 deg";
    String standard_name "longitude";
    String units "degrees_east";
  }
  lon360 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 237.0187, 242.8561;
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String history "From CALNEX_AMS_v0_copy";
    String long_name "longitude 360";
    Float32 missing_value -1.0e+34;
    String standard_name "longitude";
    String units "degrees_east";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 32.63186, 38.5634;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    Int32 epic_code 500;
    String FORTRAN_format "f10.4";
    String gap_value "-9999";
    String generic_name "lat";
    String history "From CALNEX_AMS_v0_copy";
    String instr_id "GPS";
    String ioos_category "Location";
    String long_name "Latitude";
    String max_value "90";
    String min_value "-90";
    Float32 missing_value -1.0e+34;
    String name "LAT";
    String note_01 "UNCERTAINTY=+/-0.001 deg";
    String standard_name "latitude";
    String units "degrees_north";
  }
  DUR_628 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 5.0, 5.0;
    Int32 epic_code 628;
    String gap_value "-9999";
    String history "From CALNEX_AMS_v0_copy";
    String instr_id "*";
    String long_name "Sample Duration";
    String max_value "59";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "DUR";
    String units "min";
  }
  TIM_627 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 134.5017, 159.4983;
    Int32 epic_code 627;
    String gap_value "-9999";
    String generic_name "time";
    String history "From CALNEX_AMS_v0_copy";
    String instr_id "*";
    String long_name "Julian Days";
    String max_value "365.9999";
    String min_value "1";
    Float32 missing_value -1.0e+34;
    String name "TIM";
  }
  SO4_1992 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 20.27;
    Int32 epic_code 1992;
    String gap_value "-9999";
    String history "From CALNEX_AMS_v0_copy";
    String instr_id "Non-Refractory Aerosol Sulfate - Aerosol Mass Spectrometer";
    String long_name "Non-Refractory Aerosol Sulfate";
    String max_value "30";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "SO4";
    String note_01 "UNCERTAINTY=+/- 20%";
    String note_02 "Lower Limit of Detection= 0.02";
    String units "ug/m^3";
  }
  NH4_1995 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 4.53;
    Float64 colorBarMaximum 5.0;
    Float64 colorBarMinimum 0.0;
    Int32 epic_code 1995;
    String gap_value "-9999";
    String history "From CALNEX_AMS_v0_copy";
    String instr_id "Non-Refractory Aerosol Ammonium - Aerosol Mass Spectrometer";
    String long_name "Non-Refractory Aerosol Ammonium";
    String max_value "30";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "NH4";
    String note_01 "UNCERTAINTY=+/- 20%";
    String note_02 "Lower Limit of Detection= 0.15";
    String standard_name "mole_concentration_of_ammonium_in_sea_water";
    String units "ug/m^3";
  }
  NO3_1994 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 4.61;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    Int32 epic_code 1994;
    String gap_value "-9999";
    String history "From CALNEX_AMS_v0_copy";
    String instr_id "Non-Refractory Aerosol Nitrate - Aerosol Mass Spectrometer";
    String long_name "Non-Refractory Aerosol Nitrate";
    String max_value "30";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "NO3";
    String note_01 "UNCERTAINTY=+/- 20%";
    String note_02 "Lower Limit of Detection= 0.02";
    String standard_name "mole_concentration_of_nitrate_in_sea_water";
    String units "ug/m^3";
  }
  POM_1996 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0, 15.24;
    Int32 epic_code 1996;
    String gap_value "-9999";
    String history "From CALNEX_AMS_v0_copy";
    String instr_id "Non-Refractory Aerosol Particulate Organic Matter - Aerosol Mass Spectrometer";
    String long_name "Non-Refactory Particulate Organic Matter";
    String max_value "30";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "POM";
    String note_01 "UNCERTAINTY=+/- 20%";
    String note_02 "Lower Limit of Detection= 0.16";
    String units "ug/m^3";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Trajectory";
    String cdm_trajectory_variables "traj, id";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    String creation_date "14:57 21-October-2010";
    String creator_email "pmel.info@noaa.gov";
    String creator_name "PMEL Atmospheric Chemistry";
    String creator_url "https://www.pmel.noaa.gov/";
    String DATA_TYPE "TIMESERIES-1D";
    Float64 Easternmost_Easting -117.1439;
    String featureType "Trajectory";
    String FILE_START_TIME "2010 05 14 12 00";
    String FILE_STOP_TIME "2010 06 08 11 55";
    Float64 geospatial_lat_max 38.5634;
    Float64 geospatial_lat_min 32.63186;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -117.1439;
    Float64 geospatial_lon_min -122.9813;
    String geospatial_lon_units "degrees_east";
    String history 
"FERRET V7.01 (beta/debug) 25-Jul-16
2024-04-14T05:54:05Z (local files)
2024-04-14T05:54:05Z https://data.pmel.noaa.gov/pmel/tabledap/dsg_5min_eccd_aae3_4ad6.das";
    String infoUrl "http://saga.pmel.noaa.gov/";
    String institution "PMEL Atmospheric Chemistry";
    String keywords "aerosol, ammonia, ammonium, amospheric, atmospheric, calnex, chemistry, concentration, data, days, DUR_628, duration, Earth Science > Oceans > Ocean Chemistry > Ammonia, Earth Science > Oceans > Ocean Chemistry > Nitrate, environmental, julian, laboratory, latitude, lon360, longitude, marine, matter, minute, mole, mole_concentration_of_ammonium_in_sea_water, mole_concentration_of_nitrate_in_sea_water, n02, nh4, NH4_1995, nitrate, no3, NO3_1994, noaa, non, non-refactory, non-refractory, ocean, oceans, organic, pacific, particulate, pmel, POM_1996, refactory, refractory, sample, sea, seawater, SO4_1992, sulfate, TIM_627, time, traj, trajectory, water";
    String keywords_vocabulary "GCMD Science Keywords";
    String license 
"Data Licenses / Data Usage Restrictions
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.

Unless otherwise noted, data served through this ERDDAP server are 
not quality controlled.  Users may need to do quality control when using 
these data. These data are made available at the users own risk.";
    Float64 Northernmost_Northing 38.5634;
    String PLATFORM "ATLANTIS";
    String PROJECT "CALNEX";
    String REMARK_01 "Data Source Description= Aerosol Mass Spectrometer Data from R/V Atlantis during CALNEX 2010";
    String REMARK_02 "Time Description= 5 minute data bins";
    String REMARK_03 "Below Detection Level Indicator = 0";
    String REMARK_04 "Other=";
    String REMARK_05 "Version 0= Initial version, no comments";
    String source "Bates, Timothy S./NOAA-PMEL/Phone: 206-526-6248 /Address: 7600 Sand Pt. Wy. NE,Seattle,WA 98115 /email: tim.bates@noaa.gov";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 32.63186;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String SUBMIT_DATE "21-OCT-2010";
    String subsetVariables "traj, id";
    String summary "Pacific Marine Environmental Laboratory (PMEL) Atmospheric Chemistry California Research at the Nexus of Air Quality and Climate Change (CALNEX) 5 minute data";
    String time_coverage_end "2010-06-08T11:55:00Z";
    String time_coverage_start "2010-05-14T12:00:00Z";
    String title "PMEL Atmospheric Chemistry CALNEX 5 minute data";
    String version "0";
    Float64 Westernmost_Easting -122.9813;
  }
}

 

Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP (external link) Data Access Protocol (DAP) (external link) and its selection 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.

Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names, followed by a collection of constraints (e.g., variable<value), each preceded by '&' (which is interpreted as "AND").

For details, see the tabledap Documentation.


 
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