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Simulated variations in atmospheric CO~2~ over a Wisconsin forest using a coupled ecosystem–atmosphere model by A. Scott Denning; Melville Nicholls; Lara Prihodko; Ian Baker; Pier‐Luigi Vidale; Kenneth Davis; Peter Bakwin is a Environmental Science article available to read on EtoBox.

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## Abstract Ecosystem fluxes of energy, water, and CO~2~ result in spatial and temporal variations in atmospheric properties. In principle, these variations can be used to quantify the fluxes through inverse modelling of atmospheric transport, and can improve the understanding of processes and falsifiability of models. We investigated the influence of ecosystem fluxes on atmospheric CO~2~ in the vicinity of the WLEF‐TV tower in Wisconsin using an ecophysiological model (Simple Biosphere, SiB2) coupled to an atmospheric model (Regional Atmospheric Modelling System). Model parameters were specified from satellite imagery and soil texture data. In a companion paper, simulated fluxes in the immediate tower vicinity have been compared to eddy covariance fluxes measured at the tower, with meteorology specified from tower sensors. Results were encouraging with respect to the ability of the model to capture observed diurnal cycles of fluxes. Here, the effects of fluxes in the tower footprint were also investigated by coupling SiB2 to a high‐resolution atmospheric simulation, so that the model physiology could affect the meteorological environment. These experiments were successful in repro

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Author

A. Scott Denning; Melville Nicholls; Lara Prihodko; Ian Baker; Pier‐Luigi Vidale; Kenneth Davis; Peter Bakwin

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley; Research Square (ISSN 1354-1013)

Published

2003

Language

EN

Field

Environmental Science (Physical Sciences)