CH-OE2 FP2017 (2004-2016)
Contents
Flux Products
- FP2017
Identifier: ID20170612162243
For an explanation of variables in the output file, please see here: ReddyProc Data Output Format

CH-OE2: Mean fluxes of NEE 2004-2016 (variable: NEEdespiked_WithUstar_f) in g C m-2, shown in 20×20 classes of short-wave incoming radiation (SW_IN) and air temperature (TA). The plot was generated from 227952 half-hourly NEE fluxes.
Description
PI flux product (FP) of CH-OE2 ecosystem flux and meteo data over 13 years between 2004-2016, calculated for FLUXNET uploads and CE manuscripts.
Key Stats
- Complete gap-filled years: 13
- Available measured values:
NEEdespiked_WithUstar_f
: 47.8% measured / 52.2% gap-filled (after all quality checks, outlier removal, ustar threshold application and instrument failure) - Available data after gap-filling: 227952 half-hourly fluxes (
NEEdespiked_WithUstar_f
) - Range of ustar thresholds: seasonal thresholds ranging between 0.01 m s-1 (2017) and 0.13 m s-1 (winter 2013/14), mean 0.08 m s-1 (2004-2016)
- Best estimate cumulative carbon uptake (2004-2016, 13 years): 1.60 kg C m-2 (
NEEdespiked_WithUstar_f
), avg. 0.123 kg C m-2 yr-1 - Carbon source / sink behavior: The site is a sink for CO2 in 10 of 13 complete years (
NEEdespiked_WithUstar_f
). This calculation does not take into account C import and export due to management activities.- Sink: Highest uptake 433 gC m-2 (2011)
- Source: Highest emission 833 gC m-2 (2016)
Dataset Production
Info about flux levels can be found here: Flux Levels
Software
EddyPro
for flux calculations (links to details of Level-1 fluxes are given below for each year).ReddyProc
for ustar threshold detection, MDS gap-filliing and partitioning.R
for other processing steps, e.g. merging
Setup
2004-2016: R350-IRGA75
USED FLUX VERSIONS
- 2004 R350-IRGA75_FF-201607 / Level-1_ID2016-07-11T173359
- 2005 R350-IRGA75_FF-201607 / Level-1_ID2016-07-11T153917
- 2006 R350-R2-IRGA75_FF-201607 / Level-1_ID2016-07-13T121544
- 2007 R350-IRGA75_FF-201607 / Level-1_ID2016-07-11T153948
- 2008 R350-IRGA75_FF-201607 / Level-1_ID2016-07-11T154001
- 2009 R350-IRGA75_FF-201607 / Level-1_ID2016-07-11T173438
- 2010 R350-IRGA75_FF-201607 / Level-1_ID2016-07-12T123721
- 2011 R350-IRGA75_FF-201607 / Level-1_ID2016-07-12T093553
- 2012 R350-IRGA75_FF-201607 / Level-1_ID2016-07-12T093608
- 2013 R350-IRGA75_FF-201607 / Level-1_ID2016-07-12T093629
- 2014 R350-IRGA75_FF-201607 / Level-1_ID2016-07-12T093736
- 2015 R350-IRGA75_FF-201607 / Level-1_ID2016-07-13T215619
- 2016 R350-HS100-IRGA75_FF-201703 / Level-1_ID2017-03-09T183625
Known Issues
- VPD 2008 has offset.
References
-
Emmel, C., Winkler, A., Hörtnagl, L., Revill, A., Ammann, C., D’Odorico, P., Buchmann, N., & Eugster, W. (2018). Integrated management of a Swiss cropland is not sufficient to preserve its soil carbon pool in the long term. Biogeosciences, 15(17), 5377–5393. https://doi.org/10.5194/bg-15-5377-2018
Last Updated on 5 Oct 2024 13:15