Andrew D. Richardson

A new approach to generating research-quality data through citizen science: The USA National Phenology Monitoring System (2009)

Ellen G. Denny, Brian P. Haggerty, Lisa Benton, Theresa M. Crimmins, Mark Losleben, ...

Phenology is one of the most sensitive biological responses to climate change, and recent changes in phenology have the potential to shake up ecosystems. In some cases, it appears they already are....

of Energy (DOE), the National Institute for Global Environmental Change (NIGEC), and NASA. (2009)

Faith Ann Heinsch, Maosheng Zhao, Steven W. Running, John S. Kimball, Ramakrishna R. Nemani, Kenneth J. Davis, ...

(MODIS) sensor has provided near real-time estimates of gross primary production (GPP) since March 2000. We compare four years (2000 to 2003) of satellite-based calculations of GPP with tower eddy...

6 7 (2009)

Andrew D. Richardson, David Y. Hollinger, George G. Burba, Kenneth J. Davis, Lawrence B. Flanagan, Gabriel G. Katul, ...

A multi-site analysis of random error in tower-based measurements of carbon and energy fluxes 4 5

Influence of spring phenology on seasonal and annual carbon balance in two contrasting New England forests (2009)

Richardson, Andrew D., Hollinger, David Y., Dail, D. Bryan, Lee, John T., Munger, J. William, O’keefe, John

Spring phenology is thought to exert a major influence on the carbon (C) balance of temperate and boreal ecosystems. We investigated this hypothesis using four spring onset phenological indicators in...

Estimation of Net Ecosystem Carbon Exchange for the Conterminous United States by Combining MODIS and AmeriFlux Data (2008)

Xiao, Jingfeng, Zhuang, Qianlai, Baldocchi, Dennis D., Law, Beverly E., Richardson, Andrew D., Chen, Jiquan, ...

Eddy covariance flux towers provide continuous measurements of net ecosystem carbon exchange (NEE) for a wide range of climate and biome types. However, these measurements only represent the carbon...

OptIC project: An intercomparison of optimization techniques for parameter estimation in terrestrial biogeochemical models (2007)

Trudinger, Cathy M., Raupach, Michael R., Rayner, Peter J., Kattge, Jens, Liu, Qing, Pak, Bernard, ...

We describe results of a project known as OptIC (Optimisation InterComparison) for comparison of parameter estimation methods in terrestrial biogeochemical models. A highly simplified test model was...

A multi-site analysis of random error in tower-based measurements of carbon and energy fluxes (2006)

Richardson, Andrew D., Hollinger, David Y., Burba, George C., Davis, Kenneth J., Flanagan, Lawrence B., Katul, Gabriel G., ...

Measured surface-atmosphere fluxes of energy (sensible heat, H, and latent heat, LE) and CO2 (FCO2) represent the ''true'' flux plus or minus potential random and systematic measurement errors. Here,...