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Data Submission Manual
Submit DataData ReportingTemplatesCategoryAerosolAerosol Particle Massparticulate-mass-conc-gravim    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!


Aerosol Particle Mass Concentration Data Obtained by Gravimetric Filter Analysis (level 2 data)

Below, you find an example of a data file reporting measurements of aerosol particulate mass concentration measured by gravimetric filter analysis. The format has been designed to make data reporting a easy as possible while still keeping the file self-explanatory and containing the essential information necessary for archiving and interpreting the file content. The parameters to be included in a regular data submission have been determined by an instrument specific GAW expert group.

Points to note:

Clicking on a specific line in the example template will provide a detailed explanation and possible options for each of the metadata elements. Please contact ebas@nilu in case of broken links etc.

  • Most of the information entering the header needs to be collected only for the first submission. For the first submission, it is easiest to copy the example, and to adapt it to your station. However, when "recycling" the header for a new submission, please do make sure that the information is current, and update where necessary.
  • A complete list of EBAS metadata elements and there relevance
  • Boundary and Spike Checks: Submitted data will be checked for boundaries, the current specification for boundary checks can be found here.

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.

Template for Data Submission:

84 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 file reference point
1 1 1
9999.999999 999999.999999 9.999999999999999999999999999999999999999999999
end_time of measurement, days from the file reference point
pm10_mass, ug/m3
numflag, no unit
Data definition:                         EBAS_1.1
Set type code:                           TU
Station code:                            NO0001R
Platform code:                           NO0001S
Timezone:                                UTC
File creation:                           20090101080000
Startdate:                               20080101080000
Revision date:                           20080624000000
Statistics:                              arithmetic mean
Component:                               pm10_mass
Unit:                                    ug/m3
Matrix:                                  pm10
Period code:                             1y
Resolution code:                         1d
Sample duration:                         1d
Laboratory code:                         NO01L
Instrument type:                         low_vol_sampler
Instrument manufacturer:                 Derenda
Instrument model:                        LVS 3.1
Instrument name:                         Derenda_LVS3.1_BIR_pm10
Instrument serial number:                70810508
Method ref:                              NO01L_pm10_lvs
Orig. time res.:                         1d
File name:                               NO0042R.20080101000000.20080624000000.pm10_mass.pm10.1y.1d.nas
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 line is optional]
Measurement latitude:                    58.380
Measurement longitude:                   8.250
Measurement altitude:                    220m
Station land use:                        Forest
Station setting:                         Rural
Station latitude:                        58.38853
Station longitude:                       8.252
Station altitude:                        219.0m
Station name:                            Birkenes II
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, Street18,, 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:                              2
Version:                                 1
Version description:                     initial revision
Measurement height:                      4m
Medium:                                  Teflon
Inlet type:                              Impactor--direct
Inlet description:                       PM10 at ambient humidity inlet,deliverd with sampler,flow 2.3m3/h
Humidity/temperature control:            None
Humidity/temperature control description:filter kept at ambient conditions together with sampling head.
Volume std. temperature:                 273.15K
Volume std. pressure:                    1013.25hPa
Detection limit:                         0.33ug/m3
Detection limit expl.:                   Determined by taking 3 times standard deviation of ensemble of field blanks
Measurement uncertainty:                 0.6ug/m3
Measurement uncertainty expl.:           includes uncertainties of 2 weighing processes(based on ref. lab blank weighings over a year) and volume flow measurement
Zero/negative values code:               Zero/negative possible
Zero/negative values:                    Zero/negative values reported as measured if with in detection limit,flagged with 780
Standard method:                         SOP=EMEP_manual_v1996
Sample preparation:                      Temperature and humidity equilibration
Blank correction:                        Not blank corrected
Comment:                                 "filter face velocity
Acknowledgement:                         Request acknowledgement details from data originator
start_time end_time pm10 numflag
0.333333 1.333333 7.352200 0.000000000000000000000000000000000000000000000
1.333333 2.333333 999999.999999 0.999000000000000000000000000000000000000000000
2.333333 3.333333 0.330000 0.781000000000000000000000000000000000000000000
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