Easy Access to PMEL Scientific Data
The Pacific Marine Environmental Laboratory's ERDDAP data server for public access to scientific data

NOAA OAR PMEL

Data Access Form

Dataset Title:	PMEL Atmospheric Chemistry UBWO2013 30 minute data
Institution:	PMEL Atmospheric Chemistry (Dataset ID: ThirtyMinute_0a7f_9244_3b13)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Make a graph

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Variable

Optional
Constraint #1

Optional
Constraint #2

Minimum

or a List of Values

Maximum

tseries

id (timeseries id)

longitude (degrees_east)

lon360 (longitude 360, degrees_east)

latitude (degrees_north)

time (UTC)

2013-01-30T00:00:00Z

2013-02-21T17:30:00Z

DUR_628 (Sample Duration, min)

30.0

TIM_627 (Julian Days)

30.00035

52.72952

IgT_6300 (Seconds since 01-Jan-1904, s)

3.44232397E9

3.44428698E9

SO4_1950 (ug/m^3)

0.0769231

9.55385

NH4_1923 (ug/m^3)

-0.0138462

3.26923

NO3_1947 (ug/m^3)

0.252308

11.7477

Server-side Functions

distinct()

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File type: (more information)

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  tseries {
    Float64 actual_range 1.0, 1.0;
    String axis "E";
    String long_name "Tseries";
    String point_spacing "even";
  }
  id {
    String cf_role "timeseries_id";
    String long_name "timeseries id";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 _FillValue -1.0e+34;
    Float32 actual_range -109.4677, -109.4677;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    Int32 epic_code 502;
    String FORTRAN_format "f10.4";
    String gap_value "-999";
    String generic_name "lon";
    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 250.5323, 250.5323;
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    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 40.1436, 40.1436;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    Int32 epic_code 500;
    String FORTRAN_format "f10.4";
    String gap_value "-999";
    String generic_name "lat";
    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";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.359504e+9, 1.3614677999999998e+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";
  }
  DUR_628 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 30.0, 30.0;
    Int32 epic_code 628;
    String gap_value "-999";
    String history "From UBWOS2013_PILS-IC_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 30.00035, 52.72952;
    Int32 epic_code 627;
    String gap_value "-999";
    String generic_name "time";
    String history "From UBWOS2013_PILS-IC_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";
  }
  IgT_6300 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 3.44232397e+9, 3.44428698e+9;
    Int32 epic_code 6300;
    String gap_value "-999";
    String generic_name "time";
    String history "From UBWOS2013_PILS-IC_v0_copy";
    String instr_id "*";
    String long_name "Seconds since 01-Jan-1904";
    String max_value "4000000000";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "IgT";
    String units "s";
  }
  SO4_1950 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.0769231, 9.55385;
    Int32 epic_code 1950;
    String gap_value "-999";
    String history "From UBWOS2013_PILS-IC_v0_copy";
    String instr_id "PILS (Particle-Into-Liquid-Sampler)";
    String long_name "Soluble Submicron Aerosol Sulfate";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "SO4";
    String note_01 "UNCERTAINTY=+/- 10%";
    String units "ug/m^3";
  }
  NH4_1923 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range -0.0138462, 3.26923;
    Float64 colorBarMaximum 5.0;
    Float64 colorBarMinimum 0.0;
    Int32 epic_code 1923;
    String gap_value "-999";
    String history "From UBWOS2013_PILS-IC_v0_copy";
    String instr_id "PILS (Particle-Into-Liquid-Sampler)";
    String long_name "Soluble Submicron Aerosol Ammonium";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "NH4";
    String note_01 "UNCERTAINTY=+/- 10%";
    String standard_name "mole_concentration_of_ammonium_in_sea_water";
    String units "ug/m^3";
  }
  NO3_1947 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.252308, 11.7477;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    Int32 epic_code 1947;
    String gap_value "-999";
    String history "From UBWOS2013_PILS-IC_v0_copy";
    String instr_id "PILS (Particle-Into-Liquid-Sampler)";
    String long_name "Soluble Submicron Aerosol Nitrate";
    String max_value "50";
    String min_value "0";
    Float32 missing_value -1.0e+34;
    String name "NO3";
    String note_01 "UNCERTAINTY=+/- 10%";
    String standard_name "mole_concentration_of_nitrate_in_sea_water";
    String units "ug/m^3";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "tseries, id, longitude, lon360, latitude";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    String creation_date "11:16 3-May-2013";
    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 -109.4677;
    String featureType "TimeSeries";
    String FILE_START_TIME "2013 01 30 00 00";
    String FILE_STOP_TIME "2012 02 17 18 00";
    Float64 geospatial_lat_max 40.1436;
    Float64 geospatial_lat_min 40.1436;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -109.4677;
    Float64 geospatial_lon_min -109.4677;
    String geospatial_lon_units "degrees_east";
    String history 
"FERRET V7.01 (optimized) 19-Aug-16
2024-12-21T15:14:18Z (local files)
2024-12-21T15:14:18Z https://data.pmel.noaa.gov/pmel/erddap/tabledap/ThirtyMinute_0a7f_9244_3b13.html";
    String infoUrl "http://saga.pmel.noaa.gov/";
    String institution "PMEL Atmospheric Chemistry";
    String keywords "01-jan-1904, aerosol, ammonia, ammonium, atmospheric, chemistry, concentration, data, days, DUR_628, duration, Earth Science > Oceans > Ocean Chemistry > Ammonia, Earth Science > Oceans > Ocean Chemistry > Nitrate, environmental, IgT_6300, julian, laboratory, latitude, lon360, longitude, marine, minute, mole, mole_concentration_of_ammonium_in_sea_water, mole_concentration_of_nitrate_in_sea_water, n02, nh4, NH4_1923, nitrate, no3, NO3_1947, noaa, ocean, oceans, pacific, pmel, sample, sea, seawater, seconds, since, SO4_1950, soluble, submicron, sulfate, TIM_627, time, timeseries, tseries, ubwo2013, water";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "These data were produced by NOAA and are not subject to copyright protection in the United States. NOAA waives any potential copyright and related rights in these data worldwide through the Creative Commons Zero 1.0 Universal Public Domain Dedication (CC0-1.0).";
    Float64 Northernmost_Northing 40.1436;
    String PLATFORM "Horsepool Site";
    String PROJECT "UBWOS-2013";
    String REMARK_01 "Data Source Description= PILS-IC Aerosol Chemistry data from the Horsepool site during UBWOS 2013";
    String REMARK_02 "Time Description= 30 minute data bins";
    String REMARK_03 "Other=";
    String REMARK_04 "Version 0= Initial version, no comments";
    String source "Johnson, James E./NOAA-PMEL/Phone: 206-526-6355 /Address: 7600 Sand Pt. Wy. NE,Seattle,WA 98115 /email: james.e.johnson@noaa.gov";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 40.1436;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String SUBMIT_DATE "03-MAY-2013";
    String subsetVariables "tseries, id, longitude, lon360, latitude";
    String summary "Pacific Marine Environmental Laboratory (PMEL) Atmospheric Chemistry Uintah Basin Winter Ozone Study 2013 30 minute data";
    String time_coverage_end "2013-02-21T17:30:00Z";
    String time_coverage_start "2013-01-30T00:00:00Z";
    String title "PMEL Atmospheric Chemistry UBWO2013 30 minute data";
    String version "0";
    Float64 Westernmost_Easting -109.4677;
  }
}

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.

(easy) You can get data by using the dataset's Data Access Form or Subset form. They make the URL for you.
(easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
(not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.

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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