James T. Randerson

Ecosystem Processes, Climate, and Human Activity (EPOCHA)


		James T. Randerson, Associate Professor Department of Earth System Science 3212 Croul Hall University of California, Irvine Irvine, CA 92697 telephone: (949) 824-9030 fax: (949) 824-3874 Office: 3212 Croul Hall jranders at uci dot edu
Prospective graduate students please follow this link to learn more Check out UC Irvine's new Global Change Ecology Program!

Lab Description

We seek to improve our understanding of global change in terrestrial ecosystems. We use remote sensing data, atmospheric trace gas observations, field measurements, and models in new ways to study feedbacks between terrestrial ecosystems and climate.

Fires and land use change

The global carbon cycle

Responses of terrestrial ecosystems
to climate change

Image Courtesy of NASA

We are currently addressing the following issues:

Feedbacks between land use change, fire, and drought in the tropics

Improving the representation of terrestrial biogeochemistry in climate-carbon models

Analysis of high northern latitude climate change and effects on terrestrial ecosystems

Using atmospheric observations to better understand the causes of interannual variability in the global carbon cycle, including the role of fire emissions

Integrating deforestation and fire emissions estimates

Together, remote sensing and atmospheric trace gas observations, models, and field measurements provide a foundation for our work. We use remote sensing observations from a number of satellite missions from NASA and NOAA, including the Tropical Rain Monitoring Mission (TRMM) and the Earth Observing System (EOS) Aqua and Terra satellites. In the future, we will use data from the Orbiting Carbon Observatory (OCO) and the National Polar-orbiting Operational Environmental Satellite System (NPOESS). Atmospheric trace gas observations are available through collaboration with colleagues at UC Irvine, NOAA Climate Monitoring Diagnostics Laboratory (CMDL), and Australia’s Commonwealth Science and Industrial Research Organization (CSIRO). We use a suite of modeling approaches to interpret these data, including the National Center for Atmospheric Research (NCAR) Community Climate System Model, the Carnegie-Ames-Stanford Approach (CASA) biogeochemistry model, and new land use and biogeochemical models under development at UC Irvine. We have an ongoing field measurement research program in interior Alaska supported by NASA.

Research

Fires, Land Use Change, and Deforestation Using remote sensing datasets, models, and fieldwork to understand land cover change	Global fire emissions. Units are g C m² yr^-1 averaged over 1997-2006	Climate controls on fire activity in the tropics (pdf) Spatial and temporal patterns of contemporary fire emissions, 1997-2006 (pdf) Global burned area variability (pdf) Fires in C3 and C4 vegetation (pdf) Changes in global fire emissions during ENSO (article) Global Fire Emissions Database 1997-2006 (data, readme)
Global Change in Arctic and Boreal Ecosystems		The effects of spring warming and summer drought on ecosystem carbon fluxes (pdf) Trends in soil freeze and thaw cycles (pdf) The impacts of boreal forest fire on climate warming (article) Stand age effects on CO₂ and ¹⁸O-CO₂ fluxes (pdf) Post-fire changes in boreal forest energy exchange (pdf) Kolyma river basin evapotranspiration (pdf)
Isotope Tracers Using isotopes to study ecosystem function, the carbon cycle, and the Earth System	The spatial pattern of atmospheric radiocarbon during the summer of 2004 obtained from annual plants (units of permil) The above figure is from Hsueh et al. [2007]. Photos of Diana and a Maryland farm. Click here for a plot of the global distribution in 1990 from Randerson et al. [2002].	California radiocarbon and fossil CO₂ in surface air (pdf) The wind speed dependence of the air-sea gas transfer velocity (pdf) ¹⁴CO₂seasonal and latitude variability (pdf) Inverting for ¹³C discrimination, Q10, and light use efficiency (pdf) El Nino effects on terrestrial ¹³C discrimination (pdf)
The Global Carbon Cycle	The Orbiting Carbon Observatory Movies: column CO₂ , column and surface, Vertical Profile @ 45°N	New constraints on northern hemisphere growing season net flux (pdf) The wind speed dependence of the air-sea gas transfer velocity (pdf) Effect of reduced gas emissions on CO2 inversions (pdf) Generalized cross validation inversion approach (pdf) Differences between column and surface CO₂ (pdf) The Orbiting Carbon Observatory (O=C=O) is a mission within NASA's Earth System Science Pathfinder Program.

Courses

Land Interactions ESS 51 Fall 2005, 2006 (class field trip 2004)
Land biogeochemistry ESS 202A graduate class Fall Quarter 2006
Global biogeochemical cycles ESS graduate class Winter Quarter 2006
Satellite Remote Sensing for Earth System Science ESS 138 Spring 2005, Spring 2006 (Joint with Kieth Moore)
Freshman seminar - Abrupt Climate Change Fall 2004
Terrestrial Ecosystems ESS 164 Winter 2004

Available Data and Model Results

Global Fire Emissions Database version 2 (GFEDv2) from 1997- 2006 (readme)

Contains monthly burned area, total carbon, trace gas, and aerosol emissions, and the C4 fraction of emissions.

Reduced carbon trace gas impacts on surface CO2 (readme, map, data). Maps of CO2 mixing ratio adjustments for global inversions from Suntharalingam et al. (2005).
Diurnally varying NEP fluxes from the CASA model (3 hour time step). A netcdf file from Olsen and Randerson (2004).
CASA model respiration pulse functions from Thompson and Randerson (1999).
CASA model monthly mean NEP, NPP, and heterotrophic respiration from Randerson et al. (1997).

Kolyma river and precipitation oxygen isotope datasets from Welp et al. (2005). Archived at AGU (data, paper)
Radiocarbon measurements from annual corn plants (Zea Mays) collected during the summer of 2004 from Hsueh et al. (2007) (paper)
Tower Flux Data (RAISE, Delta Junction, Alaska) -> Please send me an email.

Publications and PDFs

2009

Chen, Y. J.T. Randerson, G.R. van der Werf, D.C. Morton, P.S. Kasibhatla. 2009. Nitrogen deposition in tropical forests from deforestation and savanna fires. Global Change Biology. Submitted.
Randerson, J.T., F.M. Hoffman, P.E. Thornton, N.M. Mahowald, K. Lindsay, Y-H. Lee, C.D. Nevison, S.C. Doney, R. Stöckli, G. Bonan, C. Covey, S.W. Running, and I.Y. Fung. 2009. Systematic assessment of terrestrial biogeochemistry in coupled climate-carbon models. Global Change Biology. doi: 10.1111/j.1365-2486.2009.01912.x.

Pataki, D.E., J.T. Randerson, W. Wang, M. Herzenach, N.E. Grulke. The isotopic composition of plants and soils as biomarkers of pollution. In Isoscapes: Understanding movement, pattern, and process on Earth through isotope mapping. Edited by J. West, G. Bowen, T. Dawson, and K. Tu. In press.

Yi, S. A.D.McGuire, J. Harden, E. Kasischke, K. Manies, L. Hinzman, A. Liljedahl, J. Randerson, H. Liu, V. Romanovsky, S. Marchenko, and Y. Kim. 2009. Interactions between soil thermal and hydrological dynamics in the response of Alaska ecosystems to fire disturbance. Journal of Geophysical Research Biogeosciences. 114: G02015. doi:10.1029/2008JG000841.
Hockaday, W.C., C.A. Masiello. J.T. Randerson, R.J. Smernik, J.A. Baldock, O.A. Chadwick, and J.W. Harden. 2009. Measurement of soil carbon oxidation state and oxidative ratio by 13C nuclear magnetic resonance. Journal of Geophysical Research Biogeosciences. 114: G02014. doi:10.1029/2008JG000803. View pdf. Copyright 2008 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Still, C.J., W.J. Riley, S.C. Biraud, D.C. Noone, N.H. Buenning, J.T. Randerson, M.S. Torn, J. Welker, J.W.C. White, R. Vachon, G.D. Farquhar, and J.A. Berry. 2009. Influence of clouds and diffuse radiation on ecosystem-atmosphere CO2 and (COO)-O-18 exchanges. Journal of Geophysical Research – Biogeosciences. 114: G01018. doi:10.1029/2007JG000675.

Chen, Y., Q.B. Li, R.A. Kahn, J.T. Randerson, and D.J. Diner. 2009. Quantifying aerosol direct radiative effect with Multiangle Imaging Spectroradiometer observations: top-of-atmosphere albedo change by aerosols based on land surface types. Journal of Geophysical Research – Atmospheres. 114: D02109. doi:10.1029/2008JD010754.

van der Werf ,G.R., D.C. Morton, R.S. DeFries, L. Giglio, J.T. Randerson, G.J. Collatz, and P.S. Kasibhatla. 2009. Estimates of fire emissions from an active deforestation region in the southern Amazon based on satellite data and biogeochemical modeling. Biogeosciences. 6:235-249. View article.

2008

van der Werf,, G.R., J. Dempewolf, S.N. Trigg, J.T. Randerson, P.S. Kasibhatla, L. Giglio, D. Murdiyarso, W. Peters, D.C. Morton, G.J. Collatz, A.J. Dolman, and R.S. DeFries. 2008. Climate regulation of fire emissions and deforestation in equatorial Asia. Proceedings of the National Academy of Science. 105: 20350–20355. doi:10.1073_pnas.0803375105.

DeFries, R.S., D.C. Morton, G.R. van der Werf, L. Giglio, G.J. Collatz, J.T. Randerson, R.A. Houghton, P.K. Kasibhatla, Y. Shimabukuro. 2008. Fire-related carbon emissions from land use transitions in southern Amazonia. Geophysical Research Letters. 35: L22705. doi:10.1029/2008GL035689. Copyright 2008 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Jackson, R.B., J.T. Randerson, J.G. Canadell, R.G. Anderson, R. Avissar, D.D. Baldocchi, G.B. Bonan, K. Caldeira, N.S, Diffenbaugh, C.B. Field, B.A. Hungate, E.G. Jobbagy, L.M. Kueppers, M.D. Nosetto, and D.E. Pataki. 2008. Protecting climate with forests. Environmental Research Letters. 3: 044006. doi:10.1088/1748-9326/3/4/044006. View article.

Riley, W.J., D.Y. Hsueh, J.T. Randerson, M.L. Fischer, J.G. Hatch, D.E. Pataki, and M.L. Goulden. 2008. Where do fossil fuel carbon dioxide emissions from California go? An analysis based on radiocarbon observations and an atmospheric transport model. Journal of Geophysical Research – Biogeosciences. G04002. doi: 10.1029/2008JG000625. View pdf. Copyright 2008 American Geophysical Union. Further reproduction or electronic distribution is not permitted.
Smith-Downey, N.V, J.T. Randerson, J.M. Eiler. 2008. Molecular hydrogen uptake by soils in forest, desert and marsh ecosystems in California. Journal of Geophysical Research – Biogeosciences. 113: G03037, doi: 10.1029/2008JG000701. View pdf. Copyright 2008 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Chahine, M.T., L. Chen, P. Dimotakis, X. Jiang, Q. Li, E.T. Olsen, T. Pagano, J. Randerson, and Y.L. Yung (2008), Satellite remote sounding of mid-tropospheric CO2, Geophysical Research Letters, 35: L17807. doi: 10.1029/2008GL035022. View pdf. Copyright 2008 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Van der Werf, G.R., J.T. Randerson, L. Giglio, N. Gobron, and A.J. Dolman. 2008. Climate controls on the variability of fires in the tropics and subtropics. Global Biogeochemical Cycles. 22: GB3028. doi: 10.1029/2007GB003122. View pdf. Copyright 2008 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Morton, D.C., R.S. DeFries, J.T. Randerson, L. Giglio, W. Schroeder, G.R. van der Werf. 2008. Agricultural intensification increases deforestation fire activity in Amazonia. Global Change Biology. 14: 2262-2275. doi: 10.1111/j.1365-2486.2008.01652.x View pdf. Copyright 2008 Blackwell Science. Further reproduction or electronic distribution is not permitted.

Chapin, F.S., J.T. Randerson, A.D. McGuire, J.A. Foley, and C.B. Field. 2008. Changing feedbacks in the climate-biosphere system. Ecological Frontiers. 6: 313-320. View pdf. Copyright 2008 Ecological Society of America. Further reproduction or electronic distribution is not permitted.

Masiello, C.A., M.E. Gallagher, J.T. Randerson, R.M. Deco, and O.A. Chadwick. 2008. Evaluating two experimental approaches for measuring ecosystem carbon oxidation state and oxidative ratio. Journal of Geophysical Research – Biogeosciences. 113: G03010. doi: 10.1029/2007JG000534. View pdf. Copyright 2008 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Lyons, E.A., Y. Jin, and J.T. Randerson. 2008. Changes in surface albedo after fire in boreal forest ecosystems of interior Alaska assessed using MODIS satellite observations. Journal of Geophysical Research – Biogeosciences. 113: G02012. doi: 10.1029/2007JG000606. View pdf. Copyright 2008 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Mack, M.C., K.K. Treseder, K.L. Maines, J.W. Harden, E.A.G. Schuur, J.G. Vogel, J.T. Randerson, and F.S. Chapin. 2008. Recovery of aboveground plant biomass and net primary productivity after fire in wet and dry black spruce forests of interior Alaska. Ecosystems. 11: 209-225. doi: 10.1007/s10021-007-9117-9. View pdf. Copyright 2008 Springer Science. Further reproduction or electronic distribution is not permitted.

Nevison, C.D., N.M. Mahowald, S.C. Doney, I.D. Lima, G.R. van der Werf, J.T. Randerson, D.F. Baker, P. Kasibhatla and G.A.McKinley. 2007. Contribution of ocean, fossil fuel, land biosphere and biomass burning carbon fluxes to seasonal and interannual variability in atmospheric CO2. Journal of Geophysical Research – Biogeosciences. 113: G01010. doi: 10.1029/2007JG000408. View pdf. Copyright 2008 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Ryan, M.G., S.R. Archer, R.A. Birdsey, C.N. Dahm, L.S. Heath, J.A. Hicke, D.Y. Hollinger, T.E. Huxman, G.S. Okin, R. Oren, J.T. Randerson, and W.H. Schlesinger. 2008. Land Resources, in The effects of climate change on agriculture, land resources, water resources, and biodiversity. A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research. p. 362 pp, Washington D.C., USA. View report.

Liu, H. and J.T. Randerson. 2008. Interannual variability of surface energy exchange depends on stand age in a boreal forest fire chronosequence. Journal of Geophysical Research -Biogeosciences. 113: G01006. doi:10.1029/2007JG000483. View pdf. Copyright 2008 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Bowling, D.R., D.E. Pataki, and J.T. Randerson. 2008. Carbon isotopes in terrestrial ecosystem pools and CO2 fluxes: a review. New Phytologist. Tansley Review. doi: 10.1111/j.1469-8137.2007.02342.x. View pdf.

2007

Goetz, S.J., M.C. Mack, K.R. Gurney, J.T. Randerson, and R.A. Houghton. 2007. Ecosystem responses to recent climate change and fire disturbance at northern high latitudes: Observations and modeling results contrasting northern Eurasia and North America. Environmental Research Letters. 2: 045031. doi:10.1088/1748-9326/2/4/045031. View article.

Peters, W., A.R. Jacobson , C. Sweeney, A.E. Andrews, T.J. Conway, K. Masarie, J.B. Miller, L.M.P. Bruhwiler, G. Petron, A.I. Hirsch, D.E.J. Worthy, G.R. van der Werf , J.T. Randerson, P.O. Wennberg, M.C. Krol, and P.P. Tans. 2007. The atmospheric perspective of carbon-dioxide exchange across North America: CarbonTracker. Proceedings of the National Academy of Sciences. 104(48): 18925–18930. doi:10.1073_pnas.0708986104. View article.

Welp, L.R., J.T. Randerson, and H.P. Liu. 2007. The sensitivity of carbon fluxes to spring warming and summer drought depends on plant functional type in boreal forest ecosystems. Agricultural and Forest Meteorology. 147: 172–185. doi:10.1016/j.agrformet.2007.07.010. View pdf. Copyright 2007 Elsevier. Further reproduction or electronic distribution is not permitted.

Yang, Z., R.A. Washenfelder, G. Keppel-Aleks, N.Y. Krakauer, J.T. Randerson, P.P. Tans, C. Sweeney, and P.O. Wennberg. 2007. New constraints on northern hemisphere growing season net flux. Geophysical Research Letters. 34: L12807. doi:10.1029/2007GL029742. View pdf. Copyright 2007 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Flanner, M.G., C.S. Zender, J.T. Randerson, and P.J. Rasch. 2007. Present day climate forcing and response from black carbon in snow. Journal of Geophysical Research – Atmospheres. 112: D11202. doi:10.1029/2006JD008003. View pdf. Copyright 2007 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Miller, C.E., D. Crisp, P.L. DeCola, S.C. Olsen, J.T. Randerson, A.M. Michalak, A. Alkhaled, P. Rayner, D. J. Jacob, P. Suntharalingam, D. Jones, A.S. Denning, M.E. Nicholls, S.C. Doney, S. Pawson, H. Boesch, B.J. Connor, I.Y. Fung, D.O’Brien, R.J. Salawitch, S.P. Sander, B. Sen, P. Tans, G.C. Toon, P.O. Wennberg, S.C. Wofsy, Y.L. Yung, R.M. Law. 2007. Precision requirements for space-based XCO2 data. Journal of Geophysical Research – Atmospheres. 112: D10314. doi:10.1029/2006JD007659. View pdf. Copyright 2007 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Hsueh, D.Y., N.Y. Krakauer, J.T. Randerson, X. Xu, S.E. Trumbore, J.R. Southon. 2007. Regional patterns of radiocarbon and fossil fuel-derived CO2 in surface air across North America. Geophysical Research Letters. 34: L02816. doi:10.1029/2006GL027032. View pdf. Copyright 2007 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

2006

Amiro, B.D., A.L. Orchansky, A.G. Barr, T.A. Black, S.D. Chambers, F.S. Chapin III, M.L. Goulden, M. Litvak, H. Liu, J.H. McCaughey, and J.T. Randerson. 2006. The effect of post-fire stand age on the boreal forest energy balance. Agriculture and Forest Meteorology. 140: 41-50. doi:10.1016/j.agrformet.2006.02.014.

Chapin, F.S. III, G.M Woodwell, J.T. Randerson, E.B. Rastetter, G.B. Lovett, D.D. Baldocchi, D.A. Clark, M.E. Harmon, D.S. Schimel, R. Valentini, C. Wirth, J.D. Aber, J.J. Cole, M.L. Goulden, J.W. Harden, M. Heimann, R.W. Howarth, P.A. Matson, A.D. McGuire, J.M. Melillo, H.A. Mooney, J.C. Neff, R.A. Houghton, M.L. Pace, M.G. Ryan, S.W. Running, O.E. Sala, W.H. Schlesinger, E.-D. Schulze. 2006. Reconciling carbon cycle concepts, terminology, and methodology. Ecosystems. 9: 1041-1050. doi: 10.1007/s10021-005-0105-7.

Randerson, J.T., H. Liu, M.G. Flanner, S.D. Chambers, Y. Jin, P.G. Hess, G. Pfister, M.C. Mack, K.K. Treseder, L.R. Welp, F.S. Chapin, J.W. Harden, M.L. Goulden, E. Lyons, J.C. Neff, E.A.G. Schuur, C.S. Zender. The impact of boreal forest fire on climate warming. 2006. Science. 314: 1130-1132. View article.

Krakauer, N.Y., J.T. Randerson, F.W. Primeau, N. Gruber, D. Menemenlis. 2006. Carbon isotope evidence for the latitudinal distribution and wind speed dependence of the air-sea gas transfer velocity. Tellus. 58B: 390-417. View pdf. Copyright Blackwell Science. Further reproduction or electronic distribution is not permitted.

Van der Werf, G.R., J.T. Randerson, L. Giglio, G.J. Collatz, P.S. Kasibhatla, and A.F. Arellano, Jr. 2006. Interannual variability in global biomass burning emissions from 1997 to 2004. Atmospheric Chemistry and Physics. 6: 3423–3441. View article.

Liu, H., J.T. Randerson, J. Lindfors, W.J. Massman, and T. Foken. 2006. Consequences of incomplete surface energy balance closure for CO2 fluxes from open-path CO2/H2O infrared gas analysers. Boundary Layer Meteorology. 120: 65-85. doi: 10.1007/s10546-005-9047-z. View pdf. Copyright 2006 Springer. Further reproduction or electronic distribution is not permitted.

Smith Downey, N., J.T. Randerson, and J.M. Eiler. 2006. Temperature and moisture dependence of soil H2 uptake measured in the laboratory. Geophysical Research Letters. 33: L14813. doi: 10.1029/2006GL026749. View pdf. Copyright 2006 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Welp, L.R., J.T. Randerson, and H. Liu. 2006. Seasonal exchange of CO2 and d18O-CO2 varies with post-fire succession in boreal forest ecosystems. Journal of Geophysical Research – Biogeosciences. 111: G03007. doi: 10.1029/2005JG000126. View pdf. Copyright 2006 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Arellano, A.F., P.S. Kasibhatla, L. Giglio, G.R. van der Werf, J.T. Randerson, and G.J. Collatz. 2006. Time-dependent inversion estimates of global biomass burning CO emissions using MOPITT measurements. Journal of Geophysical Research – Atmospheres. 111 (D9): D09303. doi: 10.1029/2005JD006613. View pdf. Copyright 2006 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Giglio, L. G.R. van der Werf, J.T. Randerson, G.J. Collatz, and P. Kasibhatla. 2006. Global estimation of burned area using MODIS active fire observations. Atmospheric Chemistry and Physics. 6: 957-974. View pdf.

Randerson, J.T., C.A. Masiello, C.J. Still, T. Rahn, H. Poorter, and C.B. Field. 2006. Is the global terrestrial biosphere becoming more oxidized? Implications for trends in atmospheric O2. Global Change Biology. 12: 260-271. doi: 10.1111/j.1365-2486.2006.01099.x. View pdf. Copyright 2006 Blackwell Science. Further reproduction or electronic distribution is not permitted.
2005

Mahowald, N.M., P. Artaxo, A.R. Baker, T.D. Jickells, G.S. Okin, J.T. Randerson, A.R. Townsend. 2005. The impacts of biomass burning and land use change on Amazonian atmospheric phosphorus cycling and deposition. Global Biogeochemical Cycles. 19: GB4030. doi: 10.1029/2005GB002541. View pdf. Copyright 2005 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Suntharalingam, P., J.T. Randerson, N.Y. Krakauer, D.J. Jacob, and J.A. Logan. 2005. The influence of reduced carbon emissions and oxidation on the distribution of atmospheric CO2: Implications for inversion analyses. Global Biogeochemical Cycles. 19: GB4003. doi: 10.1029/2005GB002466. View pdf. Copyright 2005 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Riley,W.J., J.T. Randerson, P.N. Foster, and T.J. Lueker. 2005. The influence of terrestrial ecosystems and topography on coastal CO2 measurements: A case study at Trinidad Head, California. Journal of Geophysical Research – Biogeosciences. 110: G01005. doi:10.1029/2004JG000007. View pdf. Copyright 2005 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Welp, L.R., J.T. Randerson, J.C. Finlay, Zimova, G.M., Davydova, A.I., Davydov, S.P., and S.A. Zimov. 2005. A high-resolution time series of oxygen isotopes from the Kolyma River: Implications for the seasonal dynamics of discharge and basin-scale water use. Geophysical Research Letters. 32: L14401. doi: 10.1029/2005GL022857. View pdf. Copyright 2005 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Chambers, S.D., J. Beringer, J.T. Randerson, and F.S. Chapin. 2005. Fire effects on net radiation and energy partitioning: Contrasting responses of tundra and boreal forest ecosystems. Journal of Geophysical Research-Atmospheres. 110: D09106. doi: 10.1029/2004JD005299. View pdf. Copyright 2005 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Liu, H., J.T. Randerson, J. Lindfors, and F.S. Chapin, 2005. Changes in the surface energy budget after fire in boreal ecosystems of interior Alaska: An annual perspective. Journal of Geophysical Research - Atmospheres, 110: D13101. doi: 10.1029/2004JD005158. View pdf. Copyright 2005 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Randerson, J.T., G.R. van der Werf, G.J. Collatz, L. Giglio, C.J. Still, P. Kasibhatla, J.B. Miller, J.W.C. White, R.S. DeFries, and E.S. Kasischke. 2005. Fire emissions from C3 and C4 vegetation and their influence on interannual variability of atmospheric CO2 and d13CO2. Global Biogeochemical Cycles. 19: GB2019. doi: 10.1029/2004GB002366. View pdf. Copyright 2005 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Randerson, J.T., 2005. Terrestrial ecosystems and interannual variability in the global atmospheric budgets of 13CO2 and 12CO2, in Stable Isotopes and Biosphere-Atmosphere Interactions: Processes and Biological Controls. Edited by L.B. Flanagan, D.E. Pataki, and J. Ehleringer. Academic Press, San Diego.

2004

Krakauer, N.Y., T. Schneider, J.T. Randerson, and S. C. Olsen. 2004. Using generalized cross-validation to select parameters in inversions for regional carbon fluxes. Geophysical Research Letters. 31: L19108. doi: 10.1029/2004GL020323. View pdf. Copyright 2004 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Wennberg, P.O., S. Peacock, J.T. Randerson, and R. Bleck. 2004. Recent changes in the air-sea flux of methyl chloroform. Geophysical Research Letters. 31(16): L16112. doi: 10.1029/2004GL020476. View pdf. Copyright 2004 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Crisp D., R.M. Atlas, F.-M. Breon, L.R. Brown, J.P. Burrows, P. Ciais, B.J. Connor, S.C. Doney, I.Y. Fung, D.J. Jacob, C.E. Miller, D. O’Brien, S. Pawson, J.T. Randerson, P. Rayner, R.J. Salawitch, S.P. Sander, B. Sen, G.L. Stephens, P.P. Tans, G.C. Toon, P.O. Wennberg, S.C. Wofsy, Y.L. Yung, Z. Kuang, B. Chudasama, G. Sprague, B. Weiss, R. Pollock, D. Kenyon, S. Schroll. 2004. The Orbiting Carbon Observatory (OCO) mission. Advances in Space Research. 34(2004): 700–709. View pdf. Copyright 2004 Elsevier Press. Further reproduction or electronic distribution is not permitted.

Still, C.J., J.T. Randerson, and I.Y. Fung. 2004. Large scale biological functioning inferred from remote atmospheric CO2 observations, Global Change Biology, 10(8): 1240-1252. View pdf. View erratum. Copyright 2004 Blackwell Science. Further reproduction or electronic distribution is not permitted.

Smith, N.V., S.S. Saatchi, and J.T. Randerson. 2004. Trends in high northern latitude soil freeze and thaw cycles from 1988-2002. Journal of Geophysical Research - Atmospheres. 109: D12101. doi: 10.1029/2003JD004472. View pdf. Copyright 2004 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Arellano, A.F., P.S. Kasibhatla, L. Giglio, G.R. van der Werf and J.T. Randerson. 2004. Top down estimates of global CO sources using MOPITT measurements. Geophysical Research Letters. 31(1): L01104. doi: 10.1029/2004GL020311.View pdf. Copyright 2004 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Olsen, S.C., and J.T. Randerson. 2004. Differences between surface and column atmospheric CO2 and implications for carbon cycle research, Journal of Geophysical Research - Atmospheres. 109(D2): D02301. doi: 10.1029/2003JD003968. View pdf. Copyright 2004 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Van der Werf, G.R., J.T. Randerson, G.J. Collatz, L. Giglio, P. Kasibhatla, A. Arellano, S. Olsen, and E.S. Kasischke, 2004. Continental-scale partitioning of fire emissions during the 1997 to 2001 El Niño/La Niña period. Science, 303: 73-76. View article.

2003

Krakauer, N.Y., and J.T. Randerson. 2003. Do volcanic eruptions enhance or diminish net primary production? Evidence from tree rings. Global Biogeochemical Cycles. 17(4): 1118. doi: 10.1029/2003GB002076. View pdf. Copyright 2003 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Kasischke, E.S., J.H. Hewson, B.J. Stocks, G.R. van der Werf, and J.T. Randerson. 2003. The use of ATSR active fire counts for estimating relative patterns of biomass burning - a study from the boreal forest region. Geophysical Research Letters. 30(18): 1969. doi: 10.1029/2003GL017859. View pdf. Copyright 2004 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Angert, A., E. Barkan, B. Barnett, E. Brugnoli, E.A. Davidson, J. Fessenden, S. Maneepong, N. Panapitukkul, J.T. Randerson, K. Savage, D. Yakir, and B. Luz, 2003. The contribution of soil respiration in tropical, temperate, and boreal forests to the 18O enrichment of atmospheric O2. Global Biogeochemical Cycles. 17(3): 1089. doi: 10.1029/2003GB002056. View pdf. Copyright 2003 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Hicke, J.A., G.P. Asner, E.S. Kasischke, N.H.F. French, J.T. Randerson, B.J. Stocks, C.J. Tucker, S.O. Los, and C.B. Field. 2003. Postfire response of North American net primary productivity analyzed with satellite observations. Global Change Biology. 9 (8): 1145-1157. View pdf. Copyright 2003 Blackwell Science. Further reproduction or electronic distribution is not permitted.

Van der Werf, G.R., J.T. Randerson, G. J. Collatz, L. Giglio. 2003. Carbon emissions from fires in tropical and subtropical ecosystems. Global Change Biology. 9(4): 547-562. View pdf. Copyright 2003 Blackwell Science. Further reproduction or electronic distribution is not permitted.

2002

Randerson, J.T. G.J. Collatz, J.E. Fessenden, A.D. Munoz, C.J. Still, J.A. Berry, I.Y. Fung, N. Suits, and A.S. Denning. 2002. A possible global covariance between terrestrial gross primary production and 13C discrimination: Consequences for the atmospheric 13C budget and its response to ENSO. Global Biogeochemical Cycles. 16(4): 1136. doi: 10.1029/2001GB001845. View pdf. Copyright 2002 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Randerson, J.T., I. Enting, E.A.G. Schuur, K. Caldiera, and I.Y. Fung. 2002. Seasonal and latitudinal variability of troposphere D14CO2: Post bomb contributions from fossil fuels, oceans, the stratosphere, and the terrestrial biosphere. Global Biogeochemical Cycles. 16(4): 1112. doi: 10.1029/2002GB001876. View pdf. Copyright 2002 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Rahn, T., J.M. Eiler, N. Kitchen, J.E. Fessenden, and J. T. Randerson. 2002. Concentration and dD of molecular hydrogen in boreal forests: Ecosystem-scale systematics of atmospheric H2. Geophysical Research Letters. 24(18): 1888. doi:10.1029/2002GL015118. View pdf. Copyright 2002 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Randerson, J.T., F.S. Chapin, J. Harden, J.C. Neff, and M. Harmon. 2002. Net ecosystem production: a comprehensive measure of net carbon accumulation by ecosystems. Ecological Applications. 12(4): 937-947. View pdf. Copyright 2002 Ecological Society of America. Further reproduction or electronic distribution is not permitted.

Hicke, J.A., G.P. Asner, J.T. Randerson, C. J. Tucker, S.O. Los, R. Birdsey, J.C. Jenkins, C.B. Field, and E.A. Holland. 2002. Satellite-derived increases in net primary productivity across North America, 1982-1998. Geophysical Research Letters. 29(10): 1427. doi: 10.1029/2001GL013578. View pdf. Copyright 2002 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Hicke, J.A., G.P. Asner, J.T. Randerson, C. J. Tucker, S.O. Los, R. Birdsey, J.C. Jenkins, and C.B. Field. 2002. Trends in North American net primary productivity derived from satellite observations, 1982-1998. Global Biogeochemical Cycles. 16(2): 1019. doi: 10.1029/2001GB001550. View pdf. Copyright 2002 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Randerson, J.T., C.J. Still, J.J. Ballé , I.Y. Fung, S.C. Doney, P.P. Tans, T.J. Conway, J.W.C. White, B. Vaughn, N. Suits, and A.S. Denning. 2002. Carbon isotope discrimination of arctic and boreal biomes inferred by remote atmospheric measurements and biosphere-atmosphere models. Global Biogeochemical Cycles. 16(3): 1028. doi: 10.1029/2001GB001435. View pdf. Copyright 2002 American Geophysical Union. Further reproduction or electronic distribution is not permitted.

Gurney, K.R. R. M.Law, A.S. Denning, P.J. Rayner, D. Baker, P. Bousquet, L. Bruhwiler, Y.-H. Chen, P.Ciais, S. Fan, I.Y. Fung, M. Gloor, M. Heimann, K. Higuchi, J. John, T. Maki, S. Maksyutov, K. Masarie, P. Peylin, M. Prather, B. C. Pak, J. Randerson, J. Sarmiento, S. Taguchi, T. Takahashi, and C.-W. Yuen. 2002. Towards robust regional estimates of CO2 sources and sinks using atmospheric transport models. Nature. 415: 626-630. View pdf. Copyright 2002. Nature Publishing Group.. Further reproduction or electronic distribution is not permitted.

2001

Randerson, J.T. 2001. The CASA terrestrial biogeochemical model. In Encyclopedia of Global Environmental Change, volume 2, The Earth system: Biological and ecological dimensions of global environmental change. Eds. H.A. Mooney and J. Canadell. John Wiley and Sons.

Behrenfeld, M., J.T. Randerson, C. McClain, G. Feldman, S.O. Los, C.J. Tucker, P. Falkowski, C. Field, R. Frouin, W. Esaias, D. Kolber, and N. Pollack. 2001. Biospheric primary production during an ENSO transition. Science. 291:2594-2597.View pdf. Copyright 2001 American Association for the Advancement of Science. Further reproduction or electronic distribution is not permitted.

2000

Hobbie, S.E., J. P. Schimel, S.E. Trumbore, and J. Randerson. 2000. Controls over carbon storage and turnover in high latitude soils. Global Change Biology. 6: 196-210.

Chapin, F.S., A.D. McGuire, J. Randerson, R. Pielke, Sr., D. Baldocchi, S.E. Hobbie, N. Roulet, W. Eugster, E. Kasischke, E.B. Rastetter, S.A. Zimov, and S.W. Running. 2000. Arctic and boreal ecosystems of North America as components of the climate system. Global Change Biology. 6: 211-223.

McGuire, A.D., J.M. Melillo, J.T. Randerson, W.J. Parton, M. Heimann, R.A. Meier, D.W. Kicklighter, R. McKeown, and W. Sauf. 2000. The role of winter processes in the seasonal cycle of atmospheric carbon dioxide at high latitude monitoring stations: A comparison among three global terrestrial biosphere models. Biogeochemistry. 48: 91-114.

1999

Randerson, J.T., C.B. Field, I.Y.Fung, and P.P. Tans. 1999. Increases in early season ecosystem uptake explain recent changes in the seasonal cycle of atmospheric CO2 at high northern latitudes. Geophysical Research Letters. 26: 2765-2769. View pdf.

Randerson, J. T., M.V. Thompson, and C.B. Field. 1999. Linking 13C estimates of land and ocean sinks with predictions of carbon storage from CO2 fertilization of plant growth. Tellus. 51B: 668-678.

Thompson, M.V. and J.T. Randerson. 1999. Pulse response functions of terrestrial carbon models: method and application. Global Change Biology. 5: 371-394.

1998

Field, C.B., M.J. Behrenfeld, J.T. Randerson, and P. Falkowski. 1998. Primary productivity of the biosphere: an integration of terrestrial and oceanic components. Science. 281: 237-240.

1997

Randerson, J.T., M.V. Thompson, T.J. Conway, I.Y. Fung, and C.B. Field. 1997. The contribution of terrestrial sources and sinks to trends in the seasonal cycle of atmospheric carbon dioxide. Global Biogeochemical Cycles. 11: 535-560.

Fung, I.Y., J.A. Berry, C.B. Field, M.V. Thompson, J.T. Randerson, P.M. Vitousek, G.J. Collatz, P. Sellers, C.M. Malmstrom, and J. John. 1997. 13C exchange between the atmosphere and the biosphere. Global Biogeochemical Cycles. 11: 507-535.

Fredeen, A.L., J.T. Randerson, N.M. Holbrook, and C.B. Field. 1997. Elevated atmospheric CO2 increases water availability in a water-limited grassland ecosystem. Journal of the American Water Resources Association. 33: 1033-1039.

Malmstrom, C.M., M.V. Thompson, G. Juday, J.T. Randerson, and C.B. Field. 1997. Interannual variation in global-scale net primary production: Testing model estimates. Global Biogeochemical Cycles. 11: 367-392.

1996

Thompson, M.V., J.T. Randerson, C.M. Malmstrom, and C.B. Field. 1996. Historical variation in net primary production: What is necessary to sustain estimates of a terrestrial sink? Global Biogeochemical Cycles. 10: 711-726.

Randerson, J.T., M.V. Thompson, C.M. Malmstrom, C.B. Field, and I.Y. Fung. 1996. Substrate limitations for heterotrophs: Implications for models that estimate the seasonal cycle of atmospheric CO2. Global Biogeochemical Cycles. 10: 585-602.

1995

Field, C.B., J.T. Randerson and C.M. Malmstrom. 1995. Ecosystem net primary production: combining ecology and remote sensing. Remote Sensing of the Environment. 51: 75-88.

1993

Potter, C.S., J.T. Randerson, C.B. Field, P.A. Matson, P.M. Vitousek, H.A. Mooney, and S.A. Klooster. 1993. Terrestrial ecosystem production: A process model based on global satellite and surface data. Global Biogeochemical Cycles. 7: 811-841.

Randerson, J.T. and J.J. Simpson. 1993. Recurrent patterns in surface thermal fronts associated with cold filaments along the west coast of North America. Remote Sensing of the Environment. 46: 146-163.