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Wharton, S., Falk, M., Bible, K., Schroeder, M., Paw U, K.T. (2012) , Old-Growth CO2 Flux Measurements Reveal High Sensitivity To Climate Anomalies Across Seasonal, Annual And Decadal Time Scales Agricultural and Forest Meteorology, 161, 1-14
DOI: 10.1016/j.agrformet.2012.03.007

Other Publications

Still, C. J., Rastogi, B., Page, G. F., Griffith, D. M., Sibley, A., Schulze, M., Hawkins, L., Pau, S., Detto, M., Helliker, B. R. (2021) , Imaging Canopy Temperature: Shedding (Thermal) Light On Ecosystem Processes New Phytologist, 230(5), 1746-1753

Chu, H., Luo, X., Ouyang, Z., Chan, W. S., Dengel, S., Biraud, S. C., Torn, M. S., Metzger, S., Kumar, J., Arain, M. A., Arkebauer, T. J., Baldocchi, D., Bernacchi, C., Billesbach, D., Black, T. A., Blanken, P. D., Bohrer, G., Bracho, R., Brown, S., Brunsell, N. A., Chen, J., Chen, X., Clark, K., Desai, A. R., Duman, T., Durden, D., Fares, S., Forbrich, I., Gamon, J. A., Gough, C. M., Griffis, T., Helbig, M., Hollinger, D., Humphreys, E., Ikawa, H., Iwata, H., Ju, Y., Knowles, J. F., Knox, S. H., Kobayashi, H., Kolb, T., Law, B., Lee, X., Litvak, M., Liu, H., Munger, J. W., Noormets, A., Novick, K., Oberbauer, S. F., Oechel, W., Oikawa, P., Papuga, S. A., Pendall, E., Prajapati, P., Prueger, J., Quinton, W. L., Richardson, A. D., Russell, E. S., Scott, R. L., Starr, G., Staebler, R., Stoy, P. C., Stuart-Haëntjens, E., Sonnentag, O., Sullivan, R. C., Suyker, A., Ueyama, M., Vargas, R., Wood, J. D., Zona, D. (2021) , Representativeness Of Eddy-Covariance Flux Footprints For Areas Surrounding Ameriflux Sites Agricultural And Forest Meteorology, 301-302, 108350
DOI: 10.1016/j.agrformet.2021.108350

Still, C., Powell, R., Aubrecht, D., Kim, Y., Helliker, B., Roberts, D., Richardson, A. D., Goulden, M. (2019) , Thermal Imaging In Plant And Ecosystem Ecology: Applications And Challenges Ecosphere, 10(6),

Rastogi, B., Berkelhammer, M., Wharton, S., Whelan, M. E., Itter, M. S., Leen, J. B., Gupta, M. X., Noone, D., Still, C. J. (2018) , Large Uptake Of Atmospheric Ocs Observed At A Moist Old Growth Forest: Controls And Implications For Carbon Cycle Applications Journal Of Geophysical Research: Biogeosciences, 123(11), 3424-3438
DOI: 10.1029/2018JG004430

Rastogi, B., Berkelhammer, M., Wharton, S., Whelan, M. E., Meinzer, F. C., Noone, D., Still, C. J. (2018) , Ecosystem Fluxes Of Carbonyl Sulfide In An Old-Growth Forest: Temporal Dynamics And Responses To Diffuse Radiation And Heat Waves Biogeosciences, 15(23), 7127-7139
DOI: 10.5194/bg-15-7127-2018

Chu, H., Baldocchi, D. D., Poindexter, C., Abraha, M., Desai, A. R., Bohrer, G., Arain, M. A., Griffis, T., Blanken, P. D., O'Halloran, T. L., Thomas, R. Q., Zhang, Q., Burns, S. P., Frank, J. M., Christian, D., Brown, S., Black, T. A., Gough, C. M., Law, B. E., Lee, X., Chen, J., Reed, D. E., Massman, W. J., Clark, K., Hatfield, J., Prueger, J., Bracho, R., Baker, J. M., Martin, T. A. (2018) , Temporal Dynamics Of Aerodynamic Canopy Height Derived From Eddy Covariance Momentum Flux Data Across North American Flux Networks Geophysical Research Letters, 45, 9275–9287
DOI: 10.1029/2018GL079306

Wharton, S., Ma, S., Baldocchi, D.D., Falk, M., Newman, J.F., Osuna, J.L, Bible, K. (2017) , Influence of regional nighttime atmospheric regimes on canopy turbulence and gradients at a closed and open forest in mountain-valley terrain Agricultural and Forest Meteorology, 237–238, 18-29
DOI: 10.1016/j.agrformet.2017.01.020

Raczka, B., Biraud, S. C., Ehleringer, J. R., Lai, C., Miller, J. B., Pataki, D. E., Saleska, S. R., Torn, M. S., Vaughn, B. H., Wehr, R., Bowling, D. R. (2017) , Does Vapor Pressure Deficit Drive The Seasonality Of δ13C Of The Net Land-Atmosphere Co2 Exchange Across The United States? Journal Of Geophysical Research: Biogeosciences, 122(8), 1969-1987

Matthias Falk (2016) , Climate Indices Strongly Influence Old-Growth Forest Carbon Exchange Environmental Research Letters, 11, 1-12
DOI: —

Taylor, A.J., Lai, C.-T., Hopkins, F.M., Wharton, S., Bible, K., Xu, X., Phillips, C., Bush, S., Ehleringer, J.R. (2015) , Radiocarbon-based partitioning of soil respiration in an old-growth coniferous forest Ecosystems, 18, 459-470
DOI: —

Dennis Baldocchi, Cove Sturtevant (2015) , Does day and night sampling reduce spurious correlation between canopy photosynthesis and ecosystem respiration? Agricultural and Forest Meteorology, 207, 117-126
DOI: 10.1016/j.agrformet.2015.03.010

Toomey, M., Friedl, M. A., Frolking, S., Hufkens, K., Klosterman, S., Sonnentag, O., Baldocchi, D. D., Bernacchi, C. J., Biraud, S. C., Bohrer, G., Brzostek, E., Burns, S. P., Coursolle, C., Hollinger, D. Y., Margolis, H. A., McCaughey, H., Monson, R. K., Munger, J. W., Pallardy, S., Phillips, R. P., Torn, M. S., Wharton, S., Zeri, M., Richardson, A. D. (2015) , Greenness Indices From Digital Cameras Predict The Timing And Seasonal Dynamics Of Canopy-Scale Photosynthesis Ecological Applications, 25(1), 99-115

Wharton, S., Schroeder, M., Paw U, K.T., Falk, M., Bible, K. (2009) , Turbulence considerations for comparing ecosystem exchange over old-growth and clear-cut stands for limited fetch and complex canopy flow conditions Agricultural and Forest Meteorology, 149, 1477-1490
DOI: —

Wharton, S., Chasmer, L., Falk, M., Paw U, K.T. (2009) , Strong links between teleconnections and ecosystem exchange found at a Pacific Northwest old-growth forest from flux tower and MODIS EVI data Global Change Biology, 15, 2187-2205
DOI: 10.1111/j.1365-2486.2009.01952.x

Wharton, S., Schroeder, M., Bible, K., Falk, M., Paw U, K.T. (2009) , Stand-level gas-exchange responses to seasonal drought in very young versus old Douglas-fir forests of the Pacific Northwest Tree Physiology, 29, 959-974
DOI: 10.1093/treephys/tpp039

Falk, M., Wharton, S., Schroeder, M., Ustin, S., U, K. T. (2008) , Flux Partitioning In An Old-Growth Forest: Seasonal And Interannual Dynamics Tree Physiology, 28(4), 509-520
DOI: 10.1093/treephys/28.4.509

Falk, M., Paw U, K.T., Wharton, S., Schroeder, M. (2005) , Is soil respiration a major contributor to the carbon budget within a Pacific Northwest old-growth forest? Agricultural and Forest Meteorology, 135, 269-283
DOI: —

Harmon, M.E., Bible, K., Ryan, M.G., Shaw, D.C., Chen, H., Klopatek, J., Li, X. (2004) , Production, Respiration, And Overall Carbon Balance In An Old-Growth Pseudotsuga-Tsuga Forest Ecosystem Ecosystems, 7, 498-512
DOI: 10.1007/s10021-004-0140-9

Paw U, K., Falk, M., Suchanek, T., Ustin, S., Chen, J., Park, Y., Winner, W., Thomas, S., Hsiao, T., Shaw, R., King, T., Pyles, R., Schroeder, M., Matista, A. (2004) , Carbon Dioxide Exchange Between An Old-Growth Forest And The Atmosphere Ecosystems, 7(5), 513-524
DOI: 10.1007/s10021-004-0141-8

Shaw, D., Franklin, J., Bible, K., Klopatek, J., Freeman, E., Greene, S., Parker, G. (2004) , Ecological Setting Of The Wind River Old-Growth Forest Ecosystems, 7(5), 427-439
DOI: 10.1007/s10021-004-0135-6

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Coastal forested wetlands in the southeastern US provide important ecosystem services, including the conservation of biodiversity, supplying clean, abundant water resources, and the cycling and storage of carbon, which feeds back to stabilize regional climate (Noormets et al., 2010; Sun et al. 2010; Aguilos et al. 2020). However, large areas of these wetlands have been… More

Cities have a complex mix of land uses, from commercial districts with dining and shops to residential neighborhoods linked by travel corridors, as well as industrial areas such as ports and factories. All of these different land uses lead to a diversity of urban sources that emit volatile organic compounds (VOCs) and greenhouse gasses such as carbon dioxide (CO2) and methane (CH4). Direct measurements and analysis of these species over time helps us understand human interactions with climate and air pollution. 

I have a love-hate relationship with winter.  As manager of the Niwot Ridge US-NR1 AmeriFlux site (Blanken et al., 1998-present), located in a subalpine forest on the east side of the Rocky Mountains, I experience all the seasons.  In winter, I love the falling snow and seeing/feeling the powerful wind howling over a frozen landscape,… More

The AmeriFlux FLUXNET data product generated by the AmeriFlux Management Project (AMP) is now available to download for 21 sites (and counting) via Download Data.   The AmeriFlux FLUXNET data product is … Continuous flux / met time series data with Gap-filling Flux partitioning Uncertainty analysis and more! Available in 5 temporal resolutions: half-hourly, daily,… More

Carbon dynamics and greenhouse fluxes in a Florida native rangeland. The Science: Grazing lands, including both rangeland and pastureland, cover about 10.7 Mha in Southeastern United States; have a significant impact on the carbon balance in the region. Native rangelands in Florida extend over 3.1 Mha, and about 1.6 Mha of mostly non-forested areas cover… More

The ‘amerifluxr’ [pronounced: uh-merr-ee-fluhks-arrr] — an R package that allows querying, downloading, and handling AmeriFlux data and metadata — is now released through the CRAN repository. The package was developed by Housen Chu and Koen Huffkens, with support from the AmeriFlux Management Project. The target users include those who intend to use data from many… More

Feature photo: Jeff Miller, University of Wisconsin-Madison Communications The English word “scale” has a surprisingly broad range of definitions. Whether you think of the scales of a fish, the scale on which you weigh yourself, the music scale you play on an instrument, the tower you scale to fix your sonic, or the ring of… More

We all know the importance of soil as a CO2 source to the atmosphere, even in high latitude/altitude ecosystems with persistent snow cover. Before the days of automated soil respiration chambers and accessible eddy covariance technology, CO2 fluxes through porous media were estimated using vertical CO2 concentration profiles coupled with assumption that the vertical profile… More