This paper gives an overview of 20 years of research on the energy balance closure
problem. It will be shown that former assumptions that measuring errors or storage terms are …

The aim of this paper is to review recent trends in the appli cation of ground based radon
observations to atmospheric research. In spite of over four decades of atmospheric radon …

Eddy-covariance measurements are performed at several hundred sites all over the world
on a long-term basis. The gathered data are used to characterise ecosystem exchanges of …

Sun-induced chlorophyll fluorescence (SIF) is a radiation flux emitted from chlorophyll
molecules and is considered an indicator of the actual functional state of plant …

Twenty years have passed since the first German-language edition of this book was
published. Subsequently, parallel German-and English-language editions were produced in …

This study derives from and extends the discussions of a US DOE sponsored workshop held
on 30 and 31 May, 2000 in Boulder, CO concerning issues and uncertainties related to long …

This chapter describes corrections that must be applied to measurements because practical
instrumentation cannot fully meet the requirements of the underlying micrometeorological …

Unmanaged forests at a late stage of successional development are considered to be
insignificant as carbon sinks, since in theory, assimilation is thought to be balanced by …

Sudden pulse-like events of rapidly increasing CO2-efflux occur in soils under seasonally
dry climates in response to rewetting after drought. These occurrences, termed “Birch effect” …

Results from the first full year of measurements (1998–1999) of above canopy CO2 and
energy fluxes at the AmeriFlux site in the Morgan-Monroe State Forest, IN, USA, are …