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Application of a multi-step error filter for postprocessing of atmospheric flux and meteorological basic data

URN zum Zitieren der Version auf EPub Bayreuth: urn:nbn:de:bvb:703-epub-1759-5

Titelangaben

Lüers, Johannes ; Detsch, Florian ; Zhao, Peng:
Application of a multi-step error filter for postprocessing of atmospheric flux and meteorological basic data.
Hrsg.: Foken, Thomas
Bayreuth : Eigenverlag: Universität Bayreuth, Abteilung Mikrometeorologie, 2014 . - III, 20 S. - (Arbeitsergebnisse / Universität Bayreuth, Abteilung Mikrometeorologie ; 58 )

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Abstract

The R software package described in this working report includes a new multi-step error filter, called MSEF, in addition to the quality checks implemented in the TK3-software or any other eddycovariance software package. Optionally, a gap‐filling routine can be applied after having checked the data in order to fill small measuring gaps by linear interpolation. The TK3 eddy‐covariance software package as a subsequent version of ‘Turbulenzknecht’ and the TK2-software calculates highresolution eddy‐covariance data. These, in turn, reflect micrometeorological energy exchange processes at the surface which are quality assured by applying a set of corrections and quality tests. The binary output data set contains 30‐minute means of the high‐frequency measured and calculated parameters. MSEF uses these output files as input data in order to apply further quality checks including reasonable consistency limits, Status-Or-Threshold values (STV) like the diagnostic AGC value, and a set of statistical tests. Note that all the included hecking parameters can be interactively adjusted by the user according to individual needs. After the facultative filling of small gaps, the software generates various output files that are corrected for low‐quality data and outliers. This report illustrates the whole procedure from raw data measurements and calculations via postprocessing by MSEF to adjusted and gap‐filled high‐quality data sets. Approaches to fill longer gaps are currently being tested and will be discussed in a subsequent working report.

Weitere Angaben

Publikationsform: Projektbericht, Forschungsbericht, Gutachten
Keywords: Time series; gap-filling; eddy-covariance; energy fluxes; error handling; data processing; TK3-software; multi-step error filter
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften, Geologie
Institutionen der Universität: Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Professur Mikrometeorologie
Sprache: Deutsch
Titel an der UBT entstanden: Ja
URN: urn:nbn:de:bvb:703-epub-1759-5
Eingestellt am: 04 Nov 2014 11:03
Letzte Änderung: 04 Nov 2014 11:03
URI: https://epub.uni-bayreuth.de/id/eprint/1759

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