NOAA ERDDAP
Easier access to scientific data
   
Brought to you by NOAA NMFS SWFSC ERD    

ERDDAP > tabledap > Data Access Form ?

Dataset Title:  PMEL Atmospheric Chemistry NEAQAS2002 irregular 2 data Subscribe RSS
Institution:  PMEL Atmospheric Chemistry   (Dataset ID: IrregularTime2_5a38_1a0f_ef64)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
   or a List of Values ?
   Maximum ?
 
 traj ?      
   - +  ?
 id (trajectory id) ?      
   - +  ?
 time (UTC) ?          2002-07-15T13:10:25Z    2002-08-09T19:25:40Z
  < slider >
 longitude (degrees_east) ?          -75.866    -69.003
  < slider >
 lon360 (longitude 360, degrees_east) ?          284.134    290.997
 latitude (degrees_north) ?          36.797    43.405
  < slider >
 DUR_628 (Sample Duration, min) ?          0.1    0.1
 TIM_627 (Julian Days) ?          196.5489    221.8095
 AOD1_1881 (Aerosol Optical Depth Ch-1) ?          0.088577    1.1922
 AOD2_1882 (Aerosol Optical Depth Ch-2) ?          0.064642    1.0007
 AOD3_1883 (Aerosol Optical Depth Ch-3) ?          0.077565    0.91848
 AOD4_1884 (Aerosol Optical Depth Ch-4) ?          0.042068    0.52402
 AOD5_1885 (Aerosol Optical Depth Ch-5) ?          0.036245    0.31752
 AODMZA_1880 (degrees) ?          18.981    57.572
 AODAMS_1879 (atmosphere) ?          1.0567    1.8591
 
Server-side Functions ?
 distinct() ?
? ("Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.")

File type: (more information)

(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 {
 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 1.026738625e+9, 1.0289211400000002e+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 -75.866, -69.003;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    Int32 epic_code 502;
    String FORTRAN_format "f10.4";
    Float32 gap_value -999.0;
    String generic_name "lon";
    String history "From NEAQS2002_AOD_copy";
    String instr_id "GPS";
    String ioos_category "Location";
    String long_name "Longitude";
    Float32 max_value 360.0;
    Float32 min_value -180.0;
    Float32 missing_value -1.0e+34;
    String name "LON";
    String plot_lab "LONGT";
    String standard_name "longitude";
    String units "degrees_east";
  }
  lon360 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 284.134, 290.997;
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String history "From NEAQS2002_AOD_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 36.797, 43.405;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    Int32 epic_code 500;
    String FORTRAN_format "f10.4";
    Float32 gap_value -999.0;
    String generic_name "lat";
    String history "From NEAQS2002_AOD_copy";
    String instr_id "GPS";
    String ioos_category "Location";
    String long_name "Latitude";
    Float32 max_value 90.0;
    Float32 min_value -90.0;
    Float32 missing_value -1.0e+34;
    String name "LAT";
    String plot_lab "LAT";
    String standard_name "latitude";
    String units "degrees_north";
  }
  DUR_628 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.1, 0.1;
    Int32 epic_code 628;
    Float32 gap_value -99.0;
    String history "From NEAQS2002_AOD_copy";
    String instr_id "*";
    String long_name "Sample Duration";
    Float32 max_value 59.0;
    Float32 min_value 0.0;
    Float32 missing_value -1.0e+34;
    String name "DUR";
    String plot_lab "Duration";
    String units "min";
  }
  TIM_627 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 196.5489, 221.8095;
    Int32 epic_code 627;
    Float32 gap_value -999.0;
    String generic_name "time";
    String history "From NEAQS2002_AOD_copy";
    String instr_id "*";
    String long_name "Julian Days";
    Float32 max_value 365.9999;
    Float32 min_value 1.0;
    Float32 missing_value -1.0e+34;
    String name "TIM";
    String plot_lab "DayOfYear";
  }
  AOD1_1881 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.088577, 1.1922;
    Int32 epic_code 1881;
    Float32 gap_value -999.0;
    String history "From NEAQS2002_AOD_copy";
    String instr_id "Microtops sunphotometer";
    String long_name "Aerosol Optical Depth Ch-1";
    Float32 max_value 5.0;
    Float32 min_value 0.0;
    Float32 missing_value -1.0e+34;
    String name "AOD1";
    String plot_lab "AOD_380";
  }
  AOD2_1882 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.064642, 1.0007;
    Int32 epic_code 1882;
    Float32 gap_value -999.0;
    String history "From NEAQS2002_AOD_copy";
    String instr_id "Microtops sunphotometer";
    String long_name "Aerosol Optical Depth Ch-2";
    Float32 max_value 5.0;
    Float32 min_value 0.0;
    Float32 missing_value -1.0e+34;
    String name "AOD2";
    String plot_lab "AOD_440";
  }
  AOD3_1883 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.077565, 0.91848;
    Int32 epic_code 1883;
    Float32 gap_value -999.0;
    String history "From NEAQS2002_AOD_copy";
    String instr_id "Microtops sunphotometer";
    String long_name "Aerosol Optical Depth Ch-3";
    Float32 max_value 5.0;
    Float32 min_value 0.0;
    Float32 missing_value -1.0e+34;
    String name "AOD3";
    String plot_lab "AOD_500";
  }
  AOD4_1884 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.042068, 0.52402;
    Int32 epic_code 1884;
    Float32 gap_value -999.0;
    String history "From NEAQS2002_AOD_copy";
    String instr_id "Microtops sunphotometer";
    String long_name "Aerosol Optical Depth Ch-4";
    Float32 max_value 5.0;
    Float32 min_value 0.0;
    Float32 missing_value -1.0e+34;
    String name "AOD4";
    String plot_lab "AOD_675";
  }
  AOD5_1885 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 0.036245, 0.31752;
    Int32 epic_code 1885;
    Float32 gap_value -999.0;
    String history "From NEAQS2002_AOD_copy";
    String instr_id "Microtops sunphotometer";
    String long_name "Aerosol Optical Depth Ch-5";
    Float32 max_value 5.0;
    Float32 min_value 0.0;
    Float32 missing_value -1.0e+34;
    String name "AOD5";
    String plot_lab "AOD_870";
  }
  AODMZA_1880 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 18.981, 57.572;
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    Int32 epic_code 1880;
    Float32 gap_value -999.0;
    String history "From NEAQS2002_AOD_copy";
    String instr_id "Microtops sunphotometer and GPS";
    String long_name "AOD measurement zenith angle";
    Float32 max_value 90.0;
    Float32 min_value 0.0;
    Float32 missing_value -1.0e+34;
    String name "AODMZA";
    String plot_lab "SolarZenithAng";
    String units "degrees";
  }
  AODAMS_1879 {
    Float32 _FillValue -1.0e+34;
    Float32 actual_range 1.0567, 1.8591;
    Int32 epic_code 1879;
    Float32 gap_value -999.0;
    String history "From NEAQS2002_AOD_copy";
    String instr_id "Microtops sunphotometer and GPS";
    String long_name "AOD measurement airmass";
    Float32 max_value 90.0;
    Float32 min_value 0.0;
    Float32 missing_value -1.0e+34;
    String name "AODAMS";
    String plot_lab "AirMass";
    String units "atmosphere";
  }
 }
  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 "15:36 17-NOV-03";
    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 -69.003;
    String featureType "Trajectory";
    String FILE_START_TIME "2002 07 15 13 10";
    String FILE_STOP_TIME "2008 08 09 19 26";
    Float64 geospatial_lat_max 43.405;
    Float64 geospatial_lat_min 36.797;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -69.003;
    Float64 geospatial_lon_min -75.866;
    String geospatial_lon_units "degrees_east";
    String history 
"FERRET V7.01 (beta/debug) 19-Aug-16
2024-03-29T15:49:54Z (local files)
2024-03-29T15:49:54Z https://data.pmel.noaa.gov/pmel/erddap/tabledap/IrregularTime2_5a38_1a0f_ef64.html";
    String infoUrl "http://saga.pmel.noaa.gov/";
    String institution "PMEL Atmospheric Chemistry";
    String keywords "aerosol, airmass, angle, aod, AOD1_1881, AOD2_1882, AOD3_1883, AOD4_1884, AOD5_1885, AODAMS_1879, AODMZA_1880, atmospheric, ch-1, ch-2, ch-3, ch-4, ch-5, chemistry, data, days, depth, DUR_628, duration, environmental, irregular, julian, laboratory, latitude, lon360, longitude, marine, measurement, neaqas2002, noaa, optical, pacific, pmel, sample, TIM_627, time, traj, trajectory, zenith";
    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 43.405;
    String PLATFORM "RONALD_H_BROWN";
    String PROJECT "NEAQS2002";
    String REMARK_01 "PMEL Aerosol Optical Depth Data";
    String REMARK_02 "Contact person:  Trish Quinn, patricia.k.quinn@noaa.gov";
    String REMARK_03 "A 5-channel handheld Microtops sunphotometer (Solar Light Co.) operating at";
    String REMARK_04 "380, 440, 500, 675, and 870 nm was used.  The full angular field of view is";
    String REMARK_05 "2.5 deg.  The instrument has built in pressure and temperature sensors and was";
    String REMARK_06 "operated with a GPS connection to obtain position and time of the measurements.";
    String REMARK_07 "A MATLAB routine, also used by the NASA SIMBIOS program and Brookhaven National";
    String REMARK_08 "Laboratory, was used to convert the raw signal voltages from the Microtops to";
    String REMARK_09 "aerosol optical depths.  Included in the conversion is a correction for Rayleigh";
    String REMARK_10 "scattering [Penndorf, 1957], ozone optical depth, and an air mass that accounts";
    String REMARK_11 "for the Earth's curvature [Kasten and Young, 1989].  Ozone column amounts used t";
    String REMARK_12 "calculate the ozone optical depth were based on TOMS data.  The instrument was";
    String REMARK_13 "calibrated using a Langley plot approach [Shaw, 1983] by the manufacturer in";
    String REMARK_14 "August of 2000 and again at Mauna Loa in June of 2003.  The change in calibratio";
    String REMARK_15 "constants for the 5 wavelengths between the two calibrations was 7.17% (380),";
    String REMARK_16 "-3.92% (440), 0.97% (500), 1.67% (675), and 0.40% (870). The accuracy of the Lan";
    String REMARK_17 "plot calibration is accepted to be 1%.";
    String REMARK_18 "REFERENCES:";
    String REMARK_19 "Kasten, F. and A. T. Young, Revised optical air mass tables and approximation fo";
    String REMARK_20 "  Applied Optics, 28, 4735 - 4738, 1989.";
    String REMARK_21 "Penndorf, R. , Tables of refractive index for standard air and the Rayleigh scat";
    String REMARK_22 "  coefficient for the spectral region between 0.2 and 20 um and their applicatio";
    String REMARK_23 "  atmospheric optics, J. Opt. Soc. America, 47, 176 - 182, 1957.";
    String REMARK_24 "Shaw, G. E., Sun Photometry, Bull. Am. Met. Soc., 64, 4-9, 1983.";
    String source "Trish Quinn, patricia.k.quinn@noaa.gov";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 36.797;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String SUBMIT_DATE "17-Nov-2003";
    String subsetVariables "traj, id";
    String summary "Pacific Marine Environmental Laboratory (PMEL) Atmospheric Chemistry New England Air Quality Study - 2002 irregular 2 data";
    String time_coverage_end "2002-08-09T19:25:40Z";
    String time_coverage_start "2002-07-15T13:10:25Z";
    String TIME_PAR "year month day hour minute second";
    String title "PMEL Atmospheric Chemistry NEAQAS2002 irregular 2 data";
    String version "1.0";
    Float64 Westernmost_Easting -75.866;
  }
}

 

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.


 
ERDDAP, Version 2.18
Disclaimers | Privacy Policy | Contact