N.O. Jensen

TL;DR: In this paper, the impact of different gap filling methods on the annual sum of net ecosystem exchange (F NEE ) responses is investigated, based on mean diurnal variation, look-up tables (LookUp), and nonlinear regressions (Regr).

TL;DR: Data of net ecosystem carbon exchange, collected between 1996 and 1998 from 15 European forests, confirm that many European forest ecosystems act as carbon sinks and indicate that, in general, ecosystem respiration determines netcosystem carbon exchange.

TL;DR: In this article, the authors presented CO2 flux data from 18 forest ecosystems, studied in the European Union funded EUROFLUX project, and observed a significant correlation was observed between annual soil respiration (SR) and gross primary productivity (GPP) among the relatively undisturbed forests.

TL;DR: In this article, the authors adapted methods of gap filling for NEE (net ecosystem exchange of carbon) to energy fluxes and applied them to data sets available from the EUROFLUX and AmeriFlux eddy covariance databases.

TL;DR: In this article, the authors used the Compact Airborne Spectral Imager (CASI) for an agricultural area in Denmark with the purpose of quantifying vegetation amount and variations in the physiological status of the vegetation.