Vivek K. Arora

Image Vivek K. Arora
Research Scientist - Terrestrial carbon and nitrogen cycles, Representation of terrestrial biogeochemical cycles in earth system models, Carbon-climate interactions, Hydrological processes in climate models
Environment and Climate Change Canada

Current research and/or projects

Development, application and implementation of 1) terrestrial ecosystem models and 2) surface hydrological models within the framework of earth system models

  • Application of earth system models to investigate future emissions scenarios and their effect on atmospheric CO2 concentration
  • Use of earth system models to make quantitative projections of future state of the terrestrial biosphere
  • Evaluation of feedbacks between the climate and the terrestrial biosphere
  • Use of climate models to investigate effect of climate change on hydrology

Professional activities / interests

Member of the American Geophysical Union

Supervision of graduate students at the Centre pour l'étude et la simulation du climat à l'échelle régionale (Centre ESCER), Université du Québec à Montréal. Guest lectures for graduate courses (on terrestrial biosphere and its interactions with the climate system) at the School of Earth and Ocean Sciences, University of Victoria.

Contributing author of Chapter 7 (Couplings between the changes in climate system and biogeochemistry) of the fourth assessment report of the IPCC.

Contributing author of Chapter 6 (Carbon and other biogeochemical cycles) of the fifth assessment report of the IPCC.

Lead author of Chapter 8 (Modeling the climate response to methane) in Arctic Monitoring and Assessment Programme's (AMAP) report titled AMAP Assessment 2015: Methane as an Arctic climate forcer.

Education and awards

M.Sc. (Hydrology), University of Ireland, 1993

Ph.D. (Environmental Engineering), University of Melbourne, Australia, 1997.

Irish government fellowship for M.Sc. program in Hydrology (Oct 1992 – Dec 1993)

University of Melbourne postgraduate scholarship for Ph.D. (Feb 1994 – July 1997)

Natural Sciences and Engineering Research Council of Canada Visiting Fellowship, Dec. 1997- Dec. 1999.

Environment Canada’s Equinox Award for initiative and outstanding contribution to the Climate Research Branch, Spring 1998.

Governor General's Queen Elizabeth II Diamond Jubilee Medal in recognition of contribution to Canada, Feb. 2013.

Key publications


  • Le Quéré, C., Andrew, R. M., Friedlingstein, P., Sitch, S., Hauck, J., Pongratz, J., Pickers, P. A., Korsbakken, J. I., Peters, G. P., Canadell, J. G., Arneth, A., Arora, V. K., Barbero, L., Bastos, A., Bopp, L., Chevallier, F., Chini, L. P., Ciais, P., Doney, S. C., Gkritzalis, T., Goll, D. S., Harris, I., Haverd, V., Hoffman, F. M., Hoppema, M., Houghton, R. A., Hurtt, G., Ilyina, T., Jain, A. K., Johannessen, T., Jones, C. D., Kato, E., Keeling, R. F., Goldewijk, K. K., Landschützer, P., Lefèvre, N., Lienert, S., Liu, Z., Lombardozzi, D., Metzl, N., Munro, D. R., Nabel, J. E. M. S., Nakaoka, S.-I., Neill, C., Olsen, A., Ono, T., Patra, P., Peregon, A., Peters, W., Peylin, P., Pfeil, B., Pierrot, D., Poulter, B., Rehder, G., Resplandy, L., Robertson, E., Rocher, M., Rödenbeck, C., Schuster, U., Schwinger, J., Séférian, R., Skjelvan, I., Steinhoff, T., Sutton, A., Tans, P. P., Tian, H., Tilbrook, B., Tubiello, F. N., van der Laan-Luijkx, I. T., van der Werf, G. R., Viovy, N., Walker, A. P., Wiltshire, A. J., Wright, R., Zaehle, S., and Zheng, B.: Global Carbon Budget 2018, Earth Syst. Sci. Data, 10, 2141-2194,, 2018.
  • Asaadi, A., Arora, V. K., Melton, J. R., and Bartlett, P.: An improved parameterization of leaf area index (LAI) seasonality in the Canadian Land Surface Scheme (CLASS) and Canadian Terrestrial Ecosystem Model (CTEM) modelling framework, Biogeosciences, 15, 6885-6907,, 2018.
  • A. Bastos, P. Friedlingstein, S. Sitch, C. Chen, A. Mialon , J.-P. Wigneron, V.K. Arora, P.R. Briggs, J.G. Canadell, P. Ciais, F. Chevallier, L. Cheng, C. Delire, V. Haverd, A.K. Jain, F. Joos, E. Kato, S. Lienert, D. Lombardozzi, J. R. Melton, R. Myneni, J. E.M.S. Nabel, J. Pongratz, B. Poulter, C. Rödenbeck, R. Séférian, H. Tian, C. van Eck, N. Viovy, N. Vuichard, A.P. Walker , A. Wiltshire, J. Yang, S. Zaehle, N. Zeng, and D. Zhu: Impact of the 2015/2016 El Niño on the terrestrial carbon cycle constrained by bottom-up and top-down approaches, . Phil. Trans. R. Soc. B, 373 (1760),, 2018.
  • Arora, V. K., Melton, J. R., and Plummer, D.: An assessment of natural methane fluxes simulated by the CLASS-CTEM model, Biogeosciences, 15, 4683-4709,, 2018.
  • Arora, V.K., Melton, J. R.: Reduction in global area burned and wildfire emissions since 1930s enhances carbon uptake by land, Nature Comm., 9, Article number: 1326,, 2018.
  • L. Li, Y. Wang, V. K. Arora, D. Eamus, H. Shi, J. Li, L. Cheng, J. Cleverly, T. Hajimah, D. Ji, C. Jones, M. Kawamiya, W. Li, J. Tjiputra, A. Wiltshire, L. Zhang, and Q. Yu: Evaluating Global Land Surface Models in CMIP5: Analysis of Ecosystem Water- and Light-Use Efficiencies and Rainfall Partitioning, J. Clim., 31, 2995-3008,, 2018.
  • K. B. Tokarska, N. P. Gillett, V. K. Arora, W. G. Lee, K. Zickfeld, The influence of non-CO2 forcings on cumulative carbon emissions budgetsEnviron. Res. Lett., 13, 034039, 2018.
  • Le Quéré, C., Andrew, R. M., Friedlingstein, P., Sitch, S., Pongratz, J., Manning, A. C., Korsbakken, J. I., Peters, G. P., Canadell, J. G., Jackson, R. B., Boden, T. A., Tans, P. P., Andrews, O. D., Arora, V. K., Bakker, D. C. E., Barbero, L., Becker, M., Betts, R. A., Bopp, L., Chevallier, F., Chini, L. P., Ciais, P., Cosca, C. E., Cross, J., Currie, K., Gasser, T., Harris, I., Hauck, J., Haverd, V., Houghton, R. A., Hunt, C. W., Hurtt, G., Ilyina, T., Jain, A. K., Kato, E., Kautz, M., Keeling, R. F., Klein Goldewijk, K., Körtzinger, A., Landschützer, P., Lefèvre, N., Lenton, A., Lienert, S., Lima, I., Lombardozzi, D., Metzl, N., Millero, F., Monteiro, P. M. S., Munro, D. R., Nabel, J. E. M. S., Nakaoka, S.-I., Nojiri, Y., Padin, X. A., Peregon, A., Pfeil, B., Pierrot, D., Poulter, B., Rehder, G., Reimer, J., Rödenbeck, C., Schwinger, J., Séférian, R., Skjelvan, I., Stocker, B. D., Tian, H., Tilbrook, B., Tubiello, F. N., van der Laan-Luijkx, I. T., van der Werf, G. R., van Heuven, S., Viovy, N., Vuichard, N., Walker, A. P., Watson, A. J., Wiltshire, A. J., Zaehle, S., and Zhu, D.: Global Carbon Budget 2017, Earth Syst. Sci. Data, 10, 405-448,, 2018.
  • Teufel, B., Sushama, L., Arora, V.K., Verseghy, D.: Impact of dynamic vegetation phenology on the simulated pan-Arctic land surface state, Climate Dynamics,, 2018
  • Badawy, B., Polavarapu, S., Jones, D. B. A., Deng, F., Neish, M., Melton, J. R., Nassar, R., and Arora, V. K.: Coupling the Canadian Terrestrial Ecosystem Model (CTEM v. 2.0) to Environment and Climate Change Canada's greenhouse gas forecast model (v.107-glb), Geosci. Model Dev., 11, 631-663,, 2018.


  • Poulter, B., Bousquet, P., Canadell, J., Ciais, P., Peregon, A., Saunois, M., Arora, V. K., Beerling, D., Brovkin, V., Jones, C., Joos, F., Gedney, N., Ito, A., Kleinen, T., Koven, C., MacDonald, K., Melton, J., Peng, C., Peng, S., Schroder, R., Prigent, C., Riley, B., Saito, M., Spahni, R., Tian, H., Taylor, L., Viovy, N., Wilton, D., Wiltshire, A., Xu, X., and Zhang, Z.: Global wetland contribution to 2000–2012 atmospheric methane growth rate dynamics, Environ. Res. Lett., 12, 094013,, 2017.
  • Saunois, M., Bousquet, P., Poulter, B., Peregon, A., Ciais, P., Canadell, J. G., Dlugokencky, E. J., Etiope, G., Bastviken, D., Houweling, S., Janssens-Maenhout, G., Tubiello, F. N., Castaldi, S., Jackson, R. B., Alexe, M., Arora, V. K., Beerling, D. J., Bergamaschi, P., Blake, D. R., Brailsford, G., Bruhwiler, L., Crevoisier, C., Crill, P., Covey, K., Frankenberg, C., Gedney, N., Höglund-Isaksson, L., Ishizawa, M., Ito, A., Joos, F., Kim, H.-S., Kleinen, T., Krummel, P., Lamarque, J.-F., Langenfelds, R., Locatelli, R., Machida, T., Maksyutov, S., Melton, J. R., Morino, I., Naik, V., O'Doherty, S., Parmentier, F.-J. W., Patra, P. K., Peng, C., Peng, S., Peters, G. P., Pison, I., Prinn, R., Ramonet, M., Riley, W. J., Saito, M., Santini, M., Schroeder, R., Simpson, I. J., Spahni, R., Takizawa, A., Thornton, B. F., Tian, H., Tohjima, Y., Viovy, N., Voulgarakis, A., Weiss, R., Wilton, D. J., Wiltshire, A., Worthy, D., Wunch, D., Xu, X., Yoshida, Y., Zhang, B., Zhang, Z., and Zhu, Q.: Variability and quasi-decadal changes in the methane budget over the period 2000–2012, Atmos. Chem. Phys., 17, 11135-11161,, 2017.
  • Shrestha, R. K., Arora, V. K., Melton, J. R., and Sushama, L. (2017) An assessment of geographical distribution of different plant functional types over North America simulated using the CLASS-CTEM modelling framework, Biogeosciences Discuss., doi:10.5194/bg-2017-35, accepted.
  • Fyfe, J. C., C. Derksen, L. Mudryk, G. M. Flato, B. D. Santer, N. C. Swart, N. P. Molotch, X. Zhang, H. Wan, V. K. Arora, J. Scinocca and Y. Jiao (2017) Large near-term projected snowpack loss over the western United States, Nature Communications, doi:10.1038/ncomms14996.
  • Rabin, S. S., Melton, J. R., Lasslop, G., Bachelet, D., Forrest, M., Hantson, S., Kaplan, J. O., Li, F., Mangeon, S., Ward, D. S., Yue, C., Arora, V. K., Hickler, T., Kloster, S., Knorr, W., Nieradzik, L., Spessa, A., Folberth, G. A., Sheehan, T., Voulgarakis, A., Kelley, D. I., Prentice, I. C., Sitch, S., Harrison, S., and Arneth, A. (2017) The Fire Modeling Intercomparison Project (FireMIP), phase 1: experimental and analytical protocols with detailed model descriptions, Geosci. Model Dev., 10, 1175-1197, doi:10.5194/gmd-10-1175-2017.













  • Whitfield. P.H., P.J. Pilon, D.H. Burn, V. Arora, H.F. Lins, T. Ouarda, C.D. Sellars, and C. Spence. 2004. Climate Variability and Change . Rivers and Streams, in Threats to Water Availability in Canada, NWRI Scientific Assessment Report Series No. 3 and ACSD Scientific Assessment Series No. 1, National Water Research Institute, Meteorological Service of Canada, 85-90 pp.







Adjunct Professor, School of Earth and Ocean Sciences, University of Victoria

Associate Professor, Centre pour l'étude et la simulation du climat à l'échelle régionale (Centre ESCER), Université du Québec à Montréal