A comment on the paper by W.J. Massman ‘A simple method for estimating frequency response corrections for eddy covariance systems’
| Autor: | Üllar Rannik |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Atmospheric Science
Global and Planetary Change Frequency response Observational error 010504 meteorology & atmospheric sciences Attenuation Mathematical analysis 0207 environmental engineering Eddy covariance Flux Forestry 02 engineering and technology 01 natural sciences Transfer function Calculus Recursive filter 020701 environmental engineering Error detection and correction Agronomy and Crop Science 0105 earth and related environmental sciences Mathematics |
| Zdroj: | Agricultural and Forest Meteorology. 107:241-245 |
| ISSN: | 0168-1923 |
| DOI: | 10.1016/s0168-1923(00)00236-7 |
| Popis: | Massman in his paper derives an analytical formula for eddy covariance flux corrections, based on equivalent first-order co-spectral transfer functions both at low and high frequencies. At low frequencies flux attenuation due to digital recursive filtering, frequently applied in eddy covariance systems for trend removal, and spectral cut off due to finite averaging time were considered. This comment discusses the form of the transfer function of high-pass digital recursive filter and consequences of block averaging on flux estimate. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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