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Hydrospheric and Biospheric Sciences Laboratory (614)

Hydrospheric and Biospheric Sciences Laboratory (614)

Profile for G. James Collatz

Title: Physical Scientist
Affiliation: NASA
Contact: E-mail
Office Phone: 301-614-6651
Fax: 301-614-6695

Profile

RESEARCH INTERESTS
Global Carbon Cycle planning and research

PREVIOUS POSITIONS

  • 1994-1996 - Senior Research Fellow, National Research Council, GSFC
  • 1993-1994 - Research Scientist, Universities Space Research Association, GSFC
  • 1990-1993 - Research Associate, Department of Biological Sciences, Stanford University and Department of Plant Biology, Carnegie Institution of Washington, Stanford CA
  • 1988-1990 - Postdoctoral Research Fellow, Carnegie Institution of Washington
  • 1983-1988 - Partner, Growest Greenhouse, Marysville, Washington
  • 1983-1988 - Manager of production facilities and personnel, Vibert Nursery, Woodinville, Washington
  • 1979-1982 - Grower and Production Manager, NW Ground Covers and Nursery, Woodinville, Washington
  • 1975-1979 - Graduate Research Assistant, Stanford University, Department of Plant Biology, Stanford, California
  • 1973-1974 - Teaching Assistant, University of California, Department of Biological Sciences, Santa Barbara, California

EDUCATION

  • 1975-1979 - Ph.D. Biological Sciences, Stanford University, Stanford, California
  • 1974-1975 - Australian National University, Canberra, Australia
  • 1972-1974 - M.A. Biological Sciences, University of California, Santa Barbara, California
  • 1967-1972 - B.A. Biological Sciences, University of California, Santa Barbara, California

PROFESSIONAL SOCIETIES

  • American Association for the Advancement of Science
  • American Geophysical Union

Selected Publications

2006

Masek, J. G., and G. J. Collatz (2006), "Estimating forest carbon fluxes in a disturbed southeastern landscape: Integration of remote sensing, forest inventory, and biogeochemical modeling", J. Geophys. Res., 111, G01006, doi:10.1029/2005JG000062.


2005

Randerson JT, van der Werf GR, Collatz GJ, Giglio L, Still CJ, Kasibhatla P, Miller JB, White JWC, DeFries RS, Kasischke ES, “Fire emissions from C-3 and C-4 vegetation and their influence on interannual variability of atmospheric CO2 and delta(CO2)-C-13”, Global Biochemical Cycles, 19 (2): Art. No. GB2019, MAY 7 2005.


2004

van der Werf GR, Randerson JT, Collatz GJ, Giglio L, Kasibhatla PS, Arellano AF, Olsen SC, Kasischke ES, "Continental-scale partitioning of fire emissions during the 1997 to 2001 El Nino/La Nina period", SCIENCE, 303 (5654): 73-76, JAN 2 2004.


2003

Hicke JA, Asnert GP, Kasischke ES, French NHF, Randerson JT, Collatz GJ, Stocks BJ, Tucker CJ, Los SO, Field CB, "Postfire response of North American Boreal Forest net primary productivity analyzed with satellite observations", Global Change Biology, 9(8), 1145-1157, 2003.

van der Werf GR, Randerson JT, Collatz GJ, Giglio L, "Carbon emissions from fires in tropical and subtropical ecosystems", Global Change Biology, 9(4), 547-562, 2003.

Zhan X, Xue Y, Collatz GJ, "An analytical approach for estimating CO2 and heat fluxes over the Amazonian region", Ecological Modeling, 162, 97-117, 2003.

Still CJ, Berry JA, Collatz GJ, and DeFries RS, "The global distribution of C3 and C4 vegetation: carbon cycle implications", Global Biogeochemical Cycles, 17 (1): Art. No. 1006, JAN 10 2003.


2002

Randerson JT, Collatz GJ, Fessenden JE, Munoz AD, Still CJ, Berry JA, Fung IY, Suits N, Denning AS, "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): Art. No. 1136, DEC 20 2002 .

Guillevic P, Koster RD, Suarez MJ, Bounoua L, Collatz GJ, Los SO, Mahanama SPP, "Influence of the interannual variability of vegetation on the surface energy balance - A global sensitivity study", Journal of Hydrometerology, 3 (6): 617-629, DEC 2002.

Dickinson RE, Berry JA, Bonan GB, Collatz GJ, Field CB, Fung IY, Goulden M, Hoffman WA, Jackson RB, Myneni R, Sellers PJ, Shaikh M, "Nitrogen Controls on climate model evapotranspiration", Journal of Climate, 15 (3): 278-295, 2002.

DeFries RS, Bounoua L, Collatz GJ, "Human modification of the landscape and surface climate in the next 50 years", Global Change Biology, 8 (5), 438-458, May 2002.

Bounoua L, DeFries RS, Collatz GJ, Sellers PS, Khan H, "Effects of land cover conversion on climate", Climate Change, 52 (1-2): 29-64, JAN 2002.


2001

Los SO, Collatz GJ, Bounoua L, Sellers PJ, Tucker CJ, 2001, "Global interannual variations in sea surface temperature and land surface vegetation, air temperature and precipitation", Journal of Climate, 14 (7): 1535-1549, 2001.


2000

Collatz GJ, Bounoua L, Los SO, Randall DA, Fung IY, Sellers PJ, "A mechanism for the influence of vegetation on the response of the diurnal temperature range to changing climate", Geophysical Research Letters, 27 (20): 3381-3384, OCT 15 2000.

Los SO, Collatz GJ, Sellers PJ, Malmstrom CM, Pollack NH, DeFries RS, Bounoua L, Parris MT, Tucker CJ, Dazlich DA , "A global 9-yr biophysical land surface dataset from NOAA AVHRR data", Journal of Hydrometeorology, 1 (2): 183-199, APR 2000.

Bounoua L, Collatz GJ, Los SO, Sellers PJ, Dazlich DA, Tucker CJ, Randall DA, "Sensitivity of climate to changes in NDVI", Journal of Climate, 13 (13): 2277-2292, JUL 1 2000.

Selected Publications

van der Werf, G.R., D.C. Morton, R.S. DeFries, L. Gilgio, J.T. Randerson, G.J. Collatz, and P.S. Kasibhatla (2009). Estimates of deforestation-induced carbon fluxes in the southern Amazon based on satellite data and biogeochemical modeling. Biogeosciences, 6, 239-245

Campbell, J.E., G.R. Carmichael, T. Chai, M. Mena-Carrasco, Y. Tang, D.R. Blake, N.J. Blake, S.A. Vay, G.J. Collatz, I. Baker, J.A. Berry, S.A. Montzka, C. Sweeney, J.L. Schnoor, and C.O. Stanier (2008). Photosynthetic Control of Atmospheric Carbonyl Sulfide During the Growing Season. Sci., 322, 1085-1088
10.1126/science.1164015

Carvalhais, N., M. Reichstein, J. Seixas, G.J. Collatz, and et. al. (2008). Implications of the carbon cycle steady state assumption for biogeochemical modeling performance and inverse parameter retrieval. Global Biogeochemical Cycles, 22(GB2007), 16 pp
10.1029/2007GB003033

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, and Y. Shimabukuro (2008). Fire-related carbon emissions from land use transitions in southern Amazonia. Geophys. Res. Lett., 35(L22705), 5 pp
10.1029/2008GL035689

Goward, S.N., R.A. Houghton, S. Healey, G.J. Collatz, G. Molsen, W. Cohen, J. Masek, D. Turner, S. Powell, B. Law, R. Kennedy, C. Huang, and M.A. Wulder (2008). Forest Disturbance and North American Carbon Flux. Eos, Trans. AGU, 89(11), 105-116

Schaefer, K., G.J. Collatz, P. Tans, A.S. Denning, I. Baker, J. Berry, L. Prihodko, N. Suits, and A. Philpott (2008). Combined Simple Biosphere/Carnegie-Ames-Stanford Approach terrestrial carbon cycle model. J. Geophys. Res., 113(G03034), 13 pp
10.1029/2007JG000603

Williams, C.A., N.P. Hanan, I. Baker, G.J. Collatz, J. Berry, and A.S. Denning (2008). Interannual variability of photosynthesis across Africa and its attribution. J. Geophys. Res., 113(G04015), 15 pp
10.1029/2008JG000718

Zeng, N., J.-H. Yoon, A. Vintzileos, G.J. Collatz, E. Kalnay, A. Mariotti, A. Kumar, A. Busalacchi, and S. Lord (2008). Dynamical prediction of terrestrial ecosystems and the global carbon cycle: A 25-year hindcast experiment. Global Biogeochemical Cycles, 22(GB4015), 13 pp
10.1029/2008GB003183

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. PNAS, 105(51), 20350-20355
10.1073/pnas.0803375105

Kang, H.-S., Y. Xue, and G.J. Collatz (2007). Impact Assessment of Satellite-Derived Leaf Area Index Datasets Using a General Circulation Model. J. Clim., 20, 993-1015

Arellano Jr., 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 Measurement of Pollution in the Troposphere (MOPITT) measurements. J. Geophys. Res., 111(D09303), 17 pp

Giglio, L., P. Kasibhatla, G.J. Collatz, J.T. Randerson, and G.R. van der Werf (2006). Global estimation of burned area using MODIS active re observations. Atmos. Chem. Phys., 6, 957-974

Hall, F.G., J. Masek, and G.J. Collatz (2006). Evaluation of ISLSCP Initiative IIFASIR and GIMMS NDVI products and implications for carbon cycle science. Journal of Geophysical Research-Atmospheres, 111(D2), Art. No. D22S08

Hall, F.G., E. Brown de Colstoun, G.J. Collatz, D. Landis, P. Dermeyer, A. Betts, G.J. Huffman, L. Bounoua, B. and Meeson, E. Brown de Colstoun, G.J. Collatz, D. Landis, P. Dermeyer, A. Betts, G.J. Huffman, L. Bounoua, and B. and Meeson (2006). ISLSCP Initiative II global data sets: Surface boundary conditions and atmospheric forcings for land-atmosphere studies. J. Geophys. Res., 111(D22S01), 20 pp

Masek, J., and G.J. Collatz (2006). Estimating forest carbon fluxes in a disturbed southeastern landscape: Integration of remote sensing, forest inventory, and biogeochemical modeling. J. Geophys. Res., 111(G01006), 15 pp

Masek, J., and G.J. Collatz (2006). Estimating forest carbon fluxes in a disturbed southeastern landscape: Integration of remote sensing, forest inventory, and biogeochemical modeling. J. Geophys. Res., 111(G01006), 15 pp

Randerson, J.T., G.R. van der Werf, G.J. Collatz, L. Giglio, C.J. Still, P. Kasibhatla, J. 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 13CO2. Global Biogeochem. Cycles, 19(GB2019), 1-13

Goddard Signature