A strategy for quality and uncertainty assessment of long-term eddy-covariance measurements
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| Title: | Main Title: A strategy for quality and uncertainty assessment of long-term eddy-covariance measurements |
| Description: | Abstract: Eddy-covariance measurements are performed at several hundred sites all over the world on a longterm basis. The gathered data are used to characterise ecosystem exchanges of trace gases, water and energy and to validate or constrain process-based models. There is an increasing demand on standardised and comprehensive quality flagging and uncertainty quantification of these fluxes. In this paper, we review established quality assessment procedures and present a comprehensive newly composed strategy emphasising tests on high-frequency raw data, expanding existing tests on statistics, fluxes and corrections, plus quantification of errors. Moreover, representativity of fluxes is checked by footprint analysis. This strategy is applied within the recently launched TERENO network of ecosystem observatories, and its robustness is demonstrated for data acquired with different measurement set-ups. Four test data sets from TERENO and one data set from CarboEurope-IP were subjected to this quality assessment. The presented strategy is compared with established quality assessment schemes, and it is demonstrated that unrealistic fluxes are now efficiently excluded while retaining the largest possible amount of high quality data. Additionally, the algorithms applied provide comprehensive, reproducible, qualitative and quantitative uncertainty estimates for users of eddy-covariance flux data. |
| Identifier: | 10.1016/j.agrformet.2012.09.006 (DOI) |
Responsible Party
| Creators: | Matthias Mauder (Author), Matthias Cuntz (Author), Clemens Drüe (Author), Alexander Graf (Author), Corinna Rebmann (Author), Hans Peter Schmid (Author), Marius Schmidt (Author), Rainer Steinbrecher (Author) |
| Publisher: | Elsevier B.V |
| Publication Year: | 2013 |
Topic
| TR32 Topic: | Atmosphere |
| Related Subproject: | Z3 |
| Subjects: | Keywords: Uncertainty Quantification, Eddy Covariance, Quality Control, Flux Footprint, Energy Balance Closure |
File Details
| Filename: | 2013_Mauder_AFM.pdf |
| Data Type: | Text - Article |
| Size: | 14 Pages |
| File Size: | 938 KB |
| Date: | Accepted: 06.09.2012 |
| Mime Type: | application/pdf |
| Data Format: | |
| Language: | English |
| Status: | Completed |
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| Download Permission: | Only Project Members |
| General Access and Use Conditions: | For internal use only |
| Access Limitations: | For internal use only |
| Licence: | [TR32DB] Data policy agreement |
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Specific Information - Publication
| Publication Status: | Published |
| Review Status: | Peer reviewed |
| Publication Type: | Article |
| Article Type: | Journal |
| Source: | Agricultural and Forest Meteorology |
| Source Website: | www.elsevier.com/locate/agrformet |
| Volume: | 169 |
| Number of Pages: | 14 (122 - 135) |
Metadata Details
| Metadata Creator: | Clemens Drüe |
| Metadata Created: | 03.12.2013 |
| Metadata Last Updated: | 03.12.2013 |
| Subproject: | Z3 |
| Funding Phase: | 2 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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| Page Visits: | 753 |
| Metadata Downloads: | 0 |
| Dataset Downloads: | 3 |
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