Results 81 to 90 of about 327,544 (281)

Potential evaporation at eddy-covariance sites across the globe [PDF]

Hydrology and Earth System Sciences, 2019
Potential evaporation (Ep) is a crucial variable for hydrological forecasting and drought monitoring. However, multiple interpretations of Ep exist, which reflect a diverse range of methods to calculate it.
W. H. Maes, P. Gentine, N. E. C. Verhoest, D. G. Miralles   +3 more
doaj   +1 more source

Eddy Covariance flux measurements with a weight-shift microlight aircraft [PDF]

Atmospheric Measurement Techniques, 2012
Abstract. The objective of this study is to assess the feasibility and quality of Eddy-Covariance flux measurements from a weight-shift microlight aircraft (WSMA). Firstly we investigate the precision of the wind measurement (σu,v≤ 0.09 m s−1, σw = 0.04 m s−1), the lynchpin of flux calculations from aircraft.
Metzger, S., Junkermann, W., Mauder, M., Beyrich, F., Butterbach-Bahl, K., Schmid, H. P., Foken, T.   +6 more
openaire   +5 more sources

Scale dependence of the marine atmospheric boundary‐layer response to ocean surface‐temperature variability in the EUREC4$$ {\mathrm{EUREC}}^4 $$A region

Quarterly Journal of the Royal Meteorological Society, EarlyView.
With a minimal physics model and a high‐resolution fully 3D simulation, we demonstrate that the marine atmospheric boundary layer (MABL) response to sea‐surface temperature (SST) variability displays a dependence on the horizontal scales of motion.
Alessandro Storer, Matteo Borgnino, Claudia Pasquero, Agostino Niyonkuru Meroni   +3 more
wiley   +1 more source

Estimating the storage term in eddy covariance measurements: the ICOS methodology

International Agrophysics, 2018
Abstract In eddy covariance measurements, the storage flux represents the variation in time of the dry molar fraction of a given gas in the control volume representative of turbulent flux. Depending on the time scale considered, and on the height above ground of the measurements, it can either be a major component of the overall net ecosystem exchange ...
Montagnani, L., Grünwald, T., Kowalski, A., Mammarella, I., Merbold, Lutz, Metzger, S., Sedlák, P., Siebicke, L.   +7 more
openaire   +6 more sources

Wavelet covariance approach to measure convective boundary‐layer structure

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study introduces a wavelet‐based framework that applies the Haar discrete wavelet transform (DWT) to radiosonde profiles of potential temperature and water vapor mixing ratio for diagnosing convective boundary‐layer (CBL) structure. The method objectively identifies key CBL parameters, including the surface‐layer height, entrainment zone depth ...
Song‐Lak Kang, Cho‐Rong Choi, Jung‐Hee Ryu   +2 more
wiley   +1 more source

Comparison of eddy covariance and modified Bowen ratio methods for measuring gas fluxes and implications for measuring fluxes of persistent organic pollutants [PDF]

Atmospheric Chemistry and Physics, 2016
Semi-volatile persistent organic pollutants (POPs) cycle between the atmosphere and terrestrial surfaces; however measuring fluxes of POPs between the atmosphere and other media is challenging.
D. J. Bolinius, A. Jahnke, A. Jahnke, M. MacLeod   +3 more
doaj   +1 more source

CO2 fluxes from three different temperate grazed pastures using Eddy covariance measurements

This dataset contains gap-filled carbon dioxide (CO2) fluxes, non gap-filled methane (CH4) fluxes, and all wind, meteorological and QC variables from three different pastures to produce 30-min mean flux rates of Net Ecosystem Exchange (NEE) for 2017-2019.
Olde, L., Cardenas, L. M., Loick, N.
core   +1 more source

Eddy covariance journals and data sharing policies

, 2018
Data backing Figure 1 in submitted JGR-B commentary on Dat et al. (2018). From figure legend: "Diversity of data availability policies among the 20 journals with the greatest number of highly cited eddy covariance publications (top 1000 cited papers ...
Ben Bond-lamberty (493087)
core   +1 more source

ICOS eddy covariance flux-station site setup: a review

International Agrophysics, 2018
Abstract The Integrated Carbon Observation System Research Infrastructure aims to provide long-term, continuous observations of sources and sinks of greenhouse gases such as carbon dioxide, methane, nitrous oxide, and water vapour. At ICOS ecosystem stations, the principal technique for measurements of ecosystem-atmosphere exchange of GHGs is the eddy ...
Rebmann, Corinna, Aubinet, Marc, Schmid, Hape, Arriga, Nicola, Aurela, Mika, Burba, George, Clément, Robert, de Ligne, Anne, Fratini, Gerardo, Gielen, Bert, Grace, John, Graf, Alexander, Gross, Patrick, Haapanala, Sami, Herbst, Mathias, Hörtnagl, Lukas, Ibrom, Andreas, Joly, Lilian, Kljun, Natascha, Kolle, Olaf, Kowalski, Andrew, Lindroth, Anders, Loustau, Denis, Mammarella, Ivan, Mauder, Matthias, Merbold, Lutz, Metzger, Stefan, Mölder, Meelis, Montagnani, Leonardo, Papale, Dario, Pavelka, Marian, Peichl, Matthias, Roland, Marilyn, Serrano-Ortiz, Penélope, Siebicke, Lukas, Steinbrecher, Rainer, Tuovinen, Juha-Pekka, Vesala, Timo, Wohlfahrt, Georg, Franz, Daniela   +39 more
openaire   +10 more sources

Using microwave imager observations to improve the ocean temperature in a coupled NWP system

Quarterly Journal of the Royal Meteorological Society, EarlyView.
A recent upgrade to the ECMWF IFS has implemented outer‐loop coupling between the atmosphere and the ocean. This work uses this method to pass ocean skin temperature estimates derived from satellite‐borne microwave imagers to the ocean data assimilation system; the updated ocean state is then passed back to the atmospheric system.
Tracy Scanlon, Alan J. Geer, Philip Browne, Patricia de Rosnay, Niels Bormann   +4 more
wiley   +1 more source