Results 121 to 130 of about 7,453 (161)

Recurrence Analysis of Eddy Covariance Fluxes

2016
Measuring energy and matter fluxes between the atmosphere and vegetation using the Eddy Covariance (EC) technique is the state-of-the-art method to quantify carbon exchange between terrestrial ecosystems and their surrounding. The EC equipment is usually mounted onto a flux tower reaching higher than the local canopy.
Flach, M., Lange, H., Foken, T., Hauhs, M.   +3 more
openaire   +2 more sources

EClog: A handheld eddy covariance logging system

Computers and Electronics in Agriculture, 2006
A new eddy covariance logging (EClog) system has been developed based on a handheld computer. The logging program, written in C language, reads the digital data from the sonic anemometer and writes it to a CompactFlash card, at the same time showing instantaneous data, means and fluxes on the screen.
van der Molen, M.K., Zeeman, M.J., Lebis, J., Dolman, A.J.   +3 more
openaire   +2 more sources

Disjunct Eddy Covariance Method

2011
The eddy covariance method (EC) requires that all frequencies of turbulent motions and trace gas variations contributing to the flux are resolved by the measurement system. In conventional EC systems this is achieved by using anemometers and gas analyzers with fast response time and high data sampling frequency in order to catch the high-frequency end ...
Janne Rinne, Christof Ammann
openaire   +1 more source

Principle of Eddy Covariance

2012
This chapter examines the relationship between eddy covariance calculations and the concept of net ecosystem exchange. Eddy covariance is a class of micrometeorological method that measures the fluxes of energy, water, and trace gases between the earth’s surface and the atmosphere.
openaire   +1 more source

RuFlux: The Network of the Eddy Covariance Sites in Russia

Izvestiya Rossiiskoi Akademii Nauk Seriya Geograficheskaya, 2023
For the first time, the information is summarized on the history of establishment, the state of observations and the main scientific results on sites included in RuFlux, the Russian eddy covariance network for the monitoring of greenhouse gases (GHG). Eddy covariance technique provides estimates of GHG fluxes at the level of ecosystems.
O. A. Kuricheva, V. K. Avilov, A. V. Varlagin, M. L. Gitarskiy, A. A. Dmitrichenko, E. A. Dyukarev, S. V. Zagirova, D. G. Zamolodchikov, V. I. Zyryanov, D. V. Karelin, S. V. Karsanaev, I. N. Kurganova, E. D. Lapshina, A. P. Maksimov, T. Ch. Maximov, V. V. Mamkin, A. S. Marunich, M. N. Miglovets, O. A. Mikhailov, A. V. Panov, A. S. Prokushkin, N. V. Sidenko, A. V. Shilkin, Yu. A. Kurbatova   +23 more
openaire   +1 more source

Eddy Covariance Measurements over Lakes

2011
We give an overview on the status of eddy covariance measurements over lake surfaces with a focus on CO2 fluxes. Inland waters have a significant role in the sequestration, transport, and mineralization of organic carbon (Battin et~al. 2009; Tranvik et~al. 2009).
Timo Vesala, Werner Eugster, Anne Ojala
openaire   +1 more source

Eddy Covariance Measurements over Crops

2011
Croplands are managed ecosystems with rapid development over the course of the growing season under nearly optimal growth conditions with respect to nutrient availability (fertilization), water availability (possible irrigation in dry conditions), competition (monocultures where herbicide and fungicides applications keep other competitors off the plot)
Christine Moureaux, Eric Ceschia, Nicola Arriga, Pierre Béziat, Werner Eugster, Werner L. Kutsch, Elizabeth Pattey   +6 more
openaire   +1 more source

Eddy covariance‐based evapotranspiration for a subtropical wetland

Hydrological Processes, 2013
AbstractThe eddy covariance (EC) method was used in a 30‐month study to quantify evapotranspiration (ET) and vegetation coefficient (KCW) for a wetland on a ranch in subtropical south Florida. To evaluate the errors in ET estimates, the EC‐based ET (ETC‐EC) and the Food and Agricultural Organization (FAO) Penman–Monteith (PM) based ET (ETC‐PM ...
Chin‐Lung Wu, Sanjay Shukla
openaire   +1 more source

Eddy Covariance Measurements over Wetlands

2011
Wetland ecosystems can be classified according to various systems, one of which defines three major groups: (1) northern peatlands (with a total area of 350×106 ha), (2) freshwater swamps and marshes (204×106 ha), and (3) coastal wetlands (36×106 ha) (Mitsch et~al. 2009).
Tuomas Laurila, Mika Aurela, Juha-Pekka Tuovinen   +2 more
openaire   +1 more source

Eddy Covariance and Artificial Intelligence: a review

The Eddy Covariance (EC) method allows for the monitoring of carbon, water, and energy fluxes between Earth’s surface and atmosphere. Due to it’s varying interdependent data streams and abundance of data as a whole, EC is naturally suited to Artificial Intelligence (AI) approaches.
Arianna Lucarini, Mauro Lo Cascio, Serena Marras, Donatella Spano, Costantino Sirca   +4 more
openaire   +1 more source