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EC Raw Binary Format (CH-AWS)

See here for more info about the EC raw binary format.

 

Legend

An overview of used abbreviations can be found here: Abbreviations

 

Setup with rECord data logging (2025-)

Eddy covariance raw data files were recorded using the logging script rECord.

 

Adaptive Setup with sonicread data logging (2015-2025)

Eddy covariance raw data files were recorded using the logging script sonicread (PDF).

wdt_ID Year Binaries From Binaries To BICO SA GA1 FR SA Ori GA1S Notes FluxProcNotes
25 2016_1 2015123119.A00 2016012207.A00 D HS50-B IRGA72-B B 1.30m / 0° N-7.9 E0 V-21.3 (1)
26 2017_1 2016123119.A00 2017101107.A00 D HS50-B IRGA72-B B 1.30m / 0° N-7.9 E0 V-21.3
29 2018_1 2017123119.A00 2018123119.A00 C HS50-B IRGA72-B-GN1 B 1.30m / 0° N-7.9 E0 V-21.3 (4)
30 2015_1 2015102716.A51 2015123119.A00 D HS50-B IRGA72-B B 1.30m / 0° (1) (2) not a lot of files
31 2016_2 2016012210.A51 2016123119.A00 D HS50-B IRGA72-B B 1.30m / 0° N-7.9 E0 V-21.3
32 2019_1 2018123119.A00 2019042313.A47 C HS50-B IRGA72-B-GN1 B 1.30m / 0° N-7.9 E0 V-21.3 (4)
33 2019_2 2019042314.A16 2019112107.A00 B HS50-A IRGA72-A-GN1 A 1.30m / 0° N-7.9 E0 V-21.3 (3) (4)
34 2017_2 2017101207.A00 2017123119.A00 C HS50-B IRGA72-B-GN1 B 1.30m / 0° N-7.9 E0 V-21.3 (4)
35 2020_1 2019123119.A00 2020123119.A00 A HS50-A IRGA72-A A 1.30m / 0° N-7.9 E0 V-21.3
36 2019_3 2019112207.A00 2019123119.A00 A HS50-A IRGA72-A A 1.30m / 0° N-7.9 E0 V-21.3 (5)
37 2021_1 2020123119.A00 2021123119.A00 A HS50-A IRGA72-A A 1.30m / 0° N-7.9 E0 V-21.3
38 2022_1 2021123119.A00 2022123119.A00 A HS50-A IRGA72-A A 1.30m / 0° N-7.9 E0 V-21.3
39 2023_1 2022123119.A00 2023123119.A00 HS50-A IRGA72-A 1.30m / 0° N-7.9 E0 V-21.3
40 2024_1 2023123119.A00 2024123119.A00 HS50-A IRGA72-A 1.30m / 0° N-7.9 E0 V-21.3
41 2025_1 2024123119.A00 2025111219.A00 HS50-A IRGA72-A 1.30m / 0° N-7.9 E0 V-21.3 (6)
Year Binaries From Binaries To BICO SA GA1 FR SA Ori GA1S Notes FluxProcNotes

 

Notes

  • (1) From the fieldbook: 22.01.2016 (PK, remote): “The wrong Licor Head was installed on AWS. Thus, the data acquisition was configured for the Head 72H-0577, but the mounted head is 72H-0585! On the 22.01.2016 9:45 the appropriate configuration file was installed, Thus the fluxdata until 22.01.2016 9:45 is WRONG as it was measured using a wrong calibration. Li7200 string was wrong, after the update, could be fixed within the next two hours.” Comment LH: data also before 22 Jan 2016 looks fine to me.
  • (2) Sonic anemometer orientation: the spar where the sonic is mounted points exactly to the north.
  • (3) SA and GA are now containing additional output columns, similar to the extended formats at other sites, e.g. CH-DAV.
  • (4) ISSUE: WRONG CALIBRATION GAS: There was an issue with the calibration gas used to calibrate the IRGA72. As a consequence, the CO2 concentrations in the raw data files have to be multiplied by 0.974 before flux calculations. This is done directly during the conversion of the raw data binary files to CSV files when using bico and selecting the appropriate IRGA IRGA72-B-GN1. For more info about this issue see here: Wrong Calibration Gas 2017. Affected time period: all IRGA72 CO2 concentrations between 2017101207.A00 and 2019112107.A00.
  • (5) Data files no longer affected by calibration gas issue.
  • (6) Between 11 Jun 2025 17:20 and 2 Jul 2025 8:30 a small measurement stations was installed in the main wind direction close to the station and has therefore most likely disturbed flux measurements.
  • (7) Last raw data files logged with the sonicread data logging script on 12 Nov 2025. After this date, all eddy covariance raw data are logged with the rECord data logging script

 

Mobile Setup with sonicread data logging (2006-2016)

Eddy covariance raw data files were recorded using the logging script sonicread (PDF).

wdt_ID Year Binaries From Binaries To BICO SA GA 1 FR SA Ori GA1S Notes FluxProcNotes
3 2007_1 2007042612.b06.csv 2007091614.b07.csv WECSV1 R2-A IRGA75-A 1.40m / 0° N -12 E-17 V0 (3)
4 2008_1 2008050914.b05.csv 2008100705.b01.csv WECSV2 R2-A-EB1 IRGA75-A 1.50m / 199° N -12 E-17 V0 (1) (3) (7)
5 2009_1 2009052014.b09 2009110411.b00 A R2-A IRGA75-A 1.44m / 205° N -12 E-17 V0
10 2010_1 2010042714.b40 2010110210.b44 A R2-A IRGA75-A 1.50m / 34° N -12 E-17 V0
11 2011_1 2011041814.b44 2011110810.b00 A R2-A IRGA75-A 1.50m / 304° N -12 E-17 V0
13 2012_1 - - - R2-A IRGA75-A - N -12 E-17 V0 (2)
14 2013_1 2013042614.b38 2013110109.b30 A R2-A IRGA75-A 1.54m / 124° N -12 E-17 V0
15 2014_1 2014052010.b59 2014123120.b00 A R2-A IRGA75-A 1.59m / 124° N -12 E-17 V0
16 2015_1 2014123120.b00 2015123120.b00 A R2-A IRGA75-A A 1.67m / 124° N -12 E-17 V0
25 2016_1 2015123120.b00 2016090416.b50 A R2-A IRGA75-A (1.67m / 124°) N -12 E-17 V0
31 2006_1 2006060115.b00.csv 2006061420.b00.csv WECSV1 R2-A IRGA75-A 1.40m / ?° N -12 E-17 V0 (4) (5) (8)
32 2006_2 2006062312.b00.csv 2006092206.b00.csv WECSV1 R2-A IRGA75-A 1.40m / 205° N -12 E-17 V0 (4) (6)
Year Binaries From Binaries To BICO SA GA 1 FR SA Ori GA1S Notes FluxProcNotes

 

Notes

  • (1) R2 has additional byte.
  • (2) During 2012, there were timestamp issues, resulting in raw data files that have e.g. the year 2021 etc. Currently (Nov 2019) these files cannot be used because it is unknown how this timestamp error can be corrected.
  • (3) IRGA75 data were logged in mV. Needs linear conversion to yield mmol m-3. TODO
  • (4) Binary info currently refers to the converted raw binary files (WE).
  • (5) Data logged @20.7 Hz in one file per hour.
  • (6) Data logged @20.7 Hz in one file per six hours.
  • (7) Data files now contain more raw data columns than in previous years.
  • (8) This first data at the site should not be used, the CO2 fluxes fluctuate around zero and look off.

 

Last Updated on 20 Nov 2025 13:06