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Evaluation of remote sensing based terrestrial productivity from MODIS using regional tower eddy flux network observations
The Moderate Resolution Spectroradiometer (MODIS) sensor has provided near real-time estimates of gross primary production (GPP) since March 2000. We compare four years (2000 to 2003) ofExpand
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Comprehensive comparison of gap-filling techniques for eddy covariance net carbon fluxes
Abstract We review 15 techniques for estimating missing values of net ecosystem CO 2 exchange (NEE) in eddy covariance time series and evaluate their performance for different artificial gapExpand
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Effects of biotic disturbances on forest carbon cycling in the United States and Canada
Forest insects and pathogens are major disturbance agents that have affected millions of hectares in North America in recent decades, implying significant impacts to the carbon (C) cycle. Here, weExpand
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Global estimates of evapotranspiration and gross primary production based on MODIS and global meteorology data
article i nfo The simulation of gross primary production (GPP) at various spatial and temporal scales remains a major challenge for quantifying the global carbon cycle. We developed a light useExpand
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Ecosystem carbon dioxide fluxes after disturbance in forests of North America
Disturbances are important for renewal of North American forests. Here we summarize more than 180 site years of eddy covariance measurements of carbon dioxide flux made at forest chronosequences inExpand
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Terrestrial biosphere models need better representation of vegetation phenology: results from the North American Carbon Program Site Synthesis
Phenology, by controlling the seasonal activity of vegetation on the land surface, plays a fundamental role in regulating photosynthesis and other ecosystem processes, as well as competitiveExpand
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Carbon exchange and venting anomalies in an upland deciduous forest in northern Wisconsin, USA
Turbulent fluxes of carbon, water vapor, and temperature were continuously measured above an upland forest in north central Wisconsin during 1999 and 2000 using the eddy covariance method. MapleExpand
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Warm spring reduced carbon cycle impact of the 2012 US summer drought
Significance Carbon uptake by terrestrial ecosystems mitigates the impact of anthropogenic fossil fuel emissions on atmospheric CO2 concentrations, but the strength of this carbon sink is highlyExpand
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Comparing net ecosystem exchange of carbon dioxide between an old-growth and mature forest in the upper Midwest, USA
Abstract Old-growth forests are often assumed to exhibit no net carbon assimilation over time periods of several years. This generalization has not been typically supported by the fewExpand
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Ecosystem respiration and its components in an old-growth forest in the Great Lakes region of the United States
Ecosystem respiration and its components are sensitive to age, species, stand structure, and environmental conditions, and substantially influence net ecosystem productivity. We measured ecosystemExpand
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