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Data Submission Manual
Submit DataData ReportingTemplatesCategoryAerosolIntegrating Nephelometer Datalevel1    October 1, 2020

The example template given below contains the metadata fields that are commonly included when reporting data related to this specific template. Some of these metadata elements may not be relevant for your data reporting, like AIRS station ID for stations outside North America or the various QA measure data when there is no QA measure for the data. Such metadata elements could be let out. If you want to include additional metadata elements that are not given in the example template, there is a complete list here.  In case of any doubt about such additional metadata, please consult the EBAS team!

Template for submission of Integrating Nephelometer Data (level 1)

Points to note:
  • Reference pressure and temperature:
    A level 1 file contains the data referenced to standard conditions of temperature and pressure (273.15 K, 1013.25 hPa).
  • Number of spectral values reported:
    If necessary, please adapt the template to the number of wavelengths and wavelength values your instrument reports data for. This will involve changes in header lines 1, 10, 11, 12, 19ff, and 266.
  • Application of nephelometer truncation correction:
    As a general rule, all data processing steps except averaging to hourly means are applied when going from data level 0 to level 1. The angular truncation correction, available only for certain multi-wavelength instrument types, is an exception, since it will lead to unrealistic values with noisy data at low particle concentrations. The angular truncation correction is thus applied between levels 1 and 2 or 1.5.

Downloading template as text file

You could download the template and start to modify the text with your own metadata. Due to limitations of the online portal we could not provide files with the .nas file extension. So please download the text file and edit, and remember to use the .nas file-extension when you create your datafile: 


* To validate the file, please use the EBAS Submission Tool

Flags commonly used with this format:

A full list of flags could be found here.

Group 0: Valid data

Flag Validity Description
000 V Valid measurement

Group 1: Exception flags for accepted, irregular data

Flag Validity Description
110 V Episode data checked and accepted by data originator. Valid measurement

Group 5: Chemical problem

Flag Validity Description
559 V Unspecified contamination or local influence, but considered valid

Group 6: Mechanical or instrumental problem

Flag Validity Description
640 V Instrument internal relative humidity above 40%

Group 9: Missing flags

Flag Validity Description
980 M Missing due to calibration or zero/span check
999 M Missing measurement, unspecified reason

Template for Data Reporting:

89 1001
Fiebig, Markus; Someone, Else
NO01L, Norwegian Institute for Air Research, NILU,, Instituttveien 18,, N-2027, Kjeller, Norway
Fiebig, Markus
1 1
2008 01 01 2008 06 24
Days from the file reference point (start_time)
1 1 1 1 1 1 1 1 1 1 1
9999.999999 9999.99 9999.99 9999.99 999999.999999 999999.999999 999999.999999 999999.999999 999999.999999 999999.999999 9.999999999999999999999999999999999999999999999
end_time of measurement, days from the file reference point
pressure, hPa, Location=instrument internal, Matrix=instrument
temperature, K, Location=instrument internal, Matrix=instrument
relative_humidity, %, Location=instrument internal, Matrix=instrument
aerosol_light_scattering_coefficient, 1/Mm, Wavelength=450 nm, Measurement uncertainty=0.77 1/Mm
aerosol_light_scattering_coefficient, 1/Mm, Wavelength=550 nm, Measurement uncertainty=0.32 1/Mm
aerosol_light_scattering_coefficient, 1/Mm, Wavelength=700 nm, Measurement uncertainty=0.16 1/Mm
aerosol_light_backscattering_coefficient, 1/Mm, Wavelength=450 nm, Measurement uncertainty=0.43 1/Mm
aerosol_light_backscattering_coefficient, 1/Mm, Wavelength=550 nm, Measurement uncertainty=0.18 1/Mm
aerosol_light_backscattering_coefficient, 1/Mm, Wavelength=700 nm, Measurement uncertainty=0.11 1/Mm
Data definition:                          EBAS_1.1
Set type code:                            TU
Station code:                             NO0001R
Platform code:                            NO0001S
Timezone:                                 UTC
Startdate:                                20080101000000
Revision date:                            20080624000000
Component:                                aerosol_light_scattering_coefficient
Unit:                                     1/Mm
Matrix:                                   pm10
Period code:                              1y
Resolution code:                          1mn
Sample duration:                          1mn
Laboratory code:                          NO01L
Instrument type:                          nephelometer
Instrument manufacturer:                  TSI
Instrument model:                         3563
Instrument name:                          TSI_3563_BIR_dry
Instrument serial number:                 70810508
Method ref:                               NO01L_scat_coef
Orig. time res.:                          1mn
File name:                                NO0001R.20080101000000.20080624000000.aerosol_light_scattering_coefficient.pm10.1y.1mn.lev1.nas
File creation:                            20170101000000
Station WDCA-ID:                          GAWANO__BIR
Station GAW-Name:                         Birkenes Atmospheric Observatory
Station GAW-ID:                           BIR
Station AIRS-ID:                          [this line is optional]
Station other IDs:                        201(NILUDB)
Station state/province:                   [this is line optional]
Measurement latitude:                     58.380
Measurement longitude:                    8.250
Measurement altitude:                     220m
Station latitude:                         58.380
Station longitude:                        8.250
Station altitude:                         220m
Station land use:                         Forest
Station setting:                          Rural
Station GAW type:                         R
Station WMO region:                       6
Originator:                               Fiebig, Markus,, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18,, N-2027, Kjeller, Norway
Originator:                               Someone, Else,, Some nice Institute, WOW, Super interesting division, Street 18,, X-9999, Paradise, Noway
Submitter:                                Fiebig, Markus,, Norwegian Institute for Air Research, NILU, Atmosphere and Climate Department, Instituttveien 18,, N-2027, Kjeller, Norway
Data level:                               1
Version:                                  1
Version description:                      initial revision, Adis_neph_lev0_2_lev1 v.0.0_2, not truncation corrected
Measurement height:                       4m
Inlet type:                               Impactor--direct
Inlet description:                        PM10 at ambient humidity inlet, Digitel, flow 140 l/min
Humidity/temperature control:             None
Humidity/temperature control description: passive, sample heated from atmospheric to lab temperature
Volume std. temperature:                  273.15K
Volume std. pressure:                     1013.25hPa
Detection limit:                          0.5 1/Mm
Detection limit expl.:                    Determined by instrument noise characteristics, no detection limit flag used
Measurement uncertainty expl.:            values taken from Anderson et al. 1996 for statistical and calibration uncertainty
Zero/negative values code:                Zero/negative possible
Zero/negative values:                     Zero and neg. values may appear due to statistical variations at very low concentrations
Standard method:                          cal-gas=CO2+AIR_truncation-correction=none
QA measure ID:                            WCCAP-IN-2015-1
QA date:                                  20151124000000
QA document URL:                          ""
Comment:                                  Scattering correction not applied yet since reserved for level 2.
Acknowledgement:                          Request acknowledgement details from data originator
start_time end_time p_int T_int RH_int sc450 sc550 sc700 bsc450 bsc550 bsc700 numflag
0.000000 0.000694 839.40 299.70 25.80 0.556600 0.319600 0.395600 0.454500 0.224200 0.251500 0.000000000000000000000000000000000000000000000
0.000694 0.001388 9999.99 9999.99 9999.99 999999.999999 999999.999999 999999.999999 999999.999999 999999.999999 999999.999999 0.999000000000000000000000000000000000000000000
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