Eddy Covariance (eBook)
XXII, 438 Seiten
Springer Netherland (Verlag)
978-94-007-2351-1 (ISBN)
This highly practical handbook is an exhaustive treatment of eddy covariance measurement that will be of keen interest to scientists who are not necessarily specialists in micrometeorology. The chapters cover measuring fluxes using eddy covariance technique, from the tower installation and system dimensioning to data collection, correction and analysis.
With a state-of-the-art perspective, the authors examine the latest techniques and address the most up-to-date methods for data processing and quality control. The chapters provide answers to data treatment problems including data filtering, footprint analysis, data gap filling, uncertainty evaluation, and flux separation, among others. The authors cover the application of measurement techniques in different ecosystems such as forest, crops, grassland, wetland, lakes and rivers, and urban areas, highlighting peculiarities, specific practices and methods to be considered. The book also covers what to do when you have all your data, summarizing the objectives of a database as well as using case studies of the CarboEurope and FLUXNET databases to demonstrate the way they should be maintained and managed. Policies for data use, exchange and publication are also discussed and proposed.
This one compendium is a valuable source of information on eddy covariance measurement that allows readers to make rational and relevant choices in positioning, dimensioning, installing and maintaining an eddy covariance site; collecting, treating, correcting and analyzing eddy covariance data; and scaling up eddy flux measurements to annual scale and evaluating their uncertainty.
This highly practical handbook is an exhaustive treatment of eddy covariance measurement that will be of keen interest to scientists who are not necessarily specialists in micrometeorology. The chapters cover measuring fluxes using eddy covariance technique, from the tower installation and system dimensioning to data collection, correction and analysis.With a state-of-the-art perspective, the authors examine the latest techniques and address the most up-to-date methods for data processing and quality control. The chapters provide answers to data treatment problems including data filtering, footprint analysis, data gap filling, uncertainty evaluation, and flux separation, among others. The authors cover the application of measurement techniques in different ecosystems such as forest, crops, grassland, wetland, lakes and rivers, and urban areas, highlighting peculiarities, specific practices and methods to be considered. The book also covers what to do when you have all your data, summarizing the objectives of a database as well as using case studies of the CarboEurope and FLUXNET databases to demonstrate the way they should be maintained and managed. Policies for data use, exchange and publication are also discussed and proposed.This one compendium is a valuable source of information on eddy covariance measurement that allows readers to make rational and relevant choices in positioning, dimensioning, installing and maintaining an eddy covariance site; collecting, treating, correcting and analyzing eddy covariance data; and scaling up eddy flux measurements to annual scale and evaluating their uncertainty.
PrefaceChapter 1 : The eddy covariance method1.1 History1.2 Preliminaries1.3. One point conservation equations1.4 Integrated relations1.5 Spectral analysisChapter 2 : Measurement set-up2.1 Introduction2.2 Tower considerations2.3 Sonic Anemometer2.4 Eddy CO2 / H2O analyzer2.5 Profile measurementChapter 3 : Data Acquisition and Flux Calculations3.1 Data Transfer and Acquisition3.2 Flux calculation from raw data3.3 Flux DeterminationChapter 4 : Corrections and data quality control4.1. Flux data correction4.2. Effect of the unclosed energy balance4.3 Data quality analysis4.4. Accuracy of turbulent fluxes after correction and quality control4.5 Overview of available correction softwareChapter 5 : Night time Flux correction5.1 Introduction5.2 Is this problem really important?5.3. How to implement the filtering procedure ?5.4 Correction proceduresChapter 6: Data gap filling6.1 Introduction6.2 Gap-filling: why and when is it needed?6.3 Gap-filling methods6.4 Uncertainty and quality flags6.5 Final remarksChapter 7: Uncertainty quantification7.1 Introduction7.2 Random errors in flux measurements7.3 Systematic errors in flux measurements7.4 Closing ecosystem carbon budgetsConclusionChapter 8 : Footprint analysis8.1 Concept of footprint8.2 Footprint models for atmospheric boundary layer8.3 Footprint models for high vegetation8.4 Complicated landscapes and inhomogeneous canopies8.5 Quality assessment using footprint models8.6 Validation of footprint modelsChapter 9: Partitioning of net fluxes9.1 Motivation9.2 Definitions9.3 Standard methods9.4 Additional considerations and new approaches9.5 RecommendationsChapter 10 : Disjunct eddy covariance method10.1 Introduction10.2 Theory10.3 Practical applications of DEC10.4 DEC in spectral space10.5 Uncertainty due to DEC10.6 On the history of the DEC approachChapter 11: Eddy covariance measurements over forests11.1 Introduction11.2 Flux computation, selection and dependence11.3 Additional measurements11.4 Impact of ecosystem management and manipulationChapter 12: Eddy covariance measurements over crops12.1 Introduction12.2 Measurement system12.3 Flux calculation12.4 Flux corrections12.5. Data gap filling and footprint evaluation12.6. Cumulated carbon exchange12.7. Additional measurements12.8. Future experimentationsChapter 13: Eddy covariance measurements over grasslands13.1 Historic overview of grassland EC flux measurements13.2 Peculiarities of eddy covariance flux measurements over grasslands13.3 Estimating grassland carbon sequestration from flux measurements13. 4 Additional measurements13.5 Other green house gasesChapter 14: Eddy covariance measurements over wetlands14.1 Introduction14.2 Historic overview14.3 Ecosystem-specific considerations14.4 Complementary measurements14.5 EC measurements in the wintertime14.6 Carbon balances and climate effects14.7 Concluding remarksChapter 15: Eddy covariance measurements over lakes15.1. Introduction15.2. Existing studies15.3. Surface-specific siting problemsChapter 16: Eddy covariance measurements over urban areas16.1 Introduction16.2 Conceptual framework for urban EC measurements16.3 Challenges in the siting of urban EC stations16.4 Implications of the peculiarities of the urban boundary layer on EC measurements16.5 Summary and conclusionsChapter 17: Database maintenance, data sharing policy, collaboration17.1 Data Management17.2 Data Practices17.3 Data User Services17.4 Data Sharing and Policy of UsesSymbol IndexSubject Index
| Erscheint lt. Verlag | 18.1.2012 |
|---|---|
| Reihe/Serie | Springer Atmospheric Sciences | Springer Atmospheric Sciences |
| Zusatzinfo | XXII, 438 p. |
| Verlagsort | Dordrecht |
| Sprache | englisch |
| Themenwelt | Naturwissenschaften ► Biologie ► Ökologie / Naturschutz |
| Naturwissenschaften ► Geowissenschaften ► Geografie / Kartografie | |
| Naturwissenschaften ► Geowissenschaften ► Geologie | |
| Naturwissenschaften ► Geowissenschaften ► Meteorologie / Klimatologie | |
| Technik | |
| Schlagworte | Eddy covariance • Methodology • Micrometeorology • Net Ecosystem exchanges |
| ISBN-10 | 94-007-2351-2 / 9400723512 |
| ISBN-13 | 978-94-007-2351-1 / 9789400723511 |
| Haben Sie eine Frage zum Produkt? |
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