Worked at NASA Goddard Space Flight Center on projects related to
Eastham, S. D., M. S. Long, C. A. Keller, et al. E. Lundgren, R. M. Yantosca, J. Zhuang, C. Li, C. J. Lee, M. Yannetti, B. M. Auer, T. L. Clune, J. Kouatchou, W. M. Putman, M. A. Thompson, A. L. Trayanov, A. M. Molod, R. V. Martin, and D. J. Jacob. 2018. "GEOS-Chem High Performance (GCHP v11-02c): a next-generation implementation of the GEOS-Chem chemical transport model for massively parallel applications." Geoscientific Model Development, 11 (7): 2941-2953 [10.5194/gmd-11-2941-2018]
Kouatchou, J., T. L. Clune, B. M. Auer, J. E. Nielsen, and A. M. Molod. 2017. "Parallel Performance Analysis of Two Infrastructure Frameworks for GMI Chemistry." American Meteorological Society’s Third Symposium on High Performance Computing for Weather, Water, and Climate,
Liu, H., D. B. Considine, L. W. Horowitz, et al. J. H. Crawford, J. M. Rodriguez, S. E. Strahan, M. R. Damon, S. D. Steenrod, X. Xu, J. Kouatchou, C. Carouge, and R. M. Yantosca. 2016. "Using beryllium-7 to assess cross-tropopause transport in global models." Atmos. Chem. Phys. Discuss., 15 (18): 26131-26189 [10.5194/acp-16-4641-2016]
Elshorbany, Y. F., B. Duncan, S. Strode, J. Wang, and J. Kouatchou. 2016. "The description and validation of the computationally Efficient CH4–CO–OH (ECCOHv1.01) chemistry module for 3-D model applications ." Geoscientific Model Development, 9: 799-822 [doi:10.5194/gmd-9-799-2016]
Strode, S. A., B. N. Duncan, E. A. Yegorova, et al. J. Kouatchou, J. R. Ziemke, and A. R. Douglass. 2015. "Implications of carbon monoxide bias for methane lifetime and atmospheric composition in chemistry climate models." Atmospheric Chemistry and Physics, 15: 11789–11805 [10.5194/acp-15-11789-2015]
Kouatchou, J., A. Da Silva, and A. Oloso. 2015. "SIVO-PyD: A Python Distribution for Scientific Computing Visualization." NASA Tech Brief GSC-16530-1, [Full Text (Link)]
Kouatchou, J., and A. O. Oloso. 2014. "Portable Distributed Scripts (PoDS)." NASA Tech Brief GSC-16531-1, [Full Text (Link)]
Clune, T. L., K.-S. Kuo, S. Freeman, et al. R. Burns, C. A. Cruz, and J. Kouatchou. 2013. "Tool for Automated Retrieval of Generic Event Tracks (TARGET) ." NASA Tech Brief GSC-16665-1, [Full Text (Link)]
Meskhidze, N., R. Sotiropoulou, A. Nenes, J. Kouatchou, and J. M. Rodriguez. 2007. "Aerosol-cloud interactions in the NASA GMI: model development and indirect forcing assessments." Atmospheric Chemistry and Physics , [10.5194/acpd-7-14295-2007]
Kouatchou, J. 2003. "Comparison of time and spatial collocation methods for the heat equation." Journal of Computational and Applied Mathematics, 150 (1): 129-141 [10.1016/s0377-0427(02)00656-8]
Zhang, J., J. Kouatchou, and M. Othman. 2002. "On cyclic reduction and finite difference schemes." Journal of Computational and Applied Mathematics, 145 (1): 213-222 [10.1016/s0377-0427(01)00576-3]
Zhang, J., J. Kouatchou, and L. Ge. 2002. "A family of fourth-order difference schemes on rotated grid for two-dimensional convection–diffusion equation." Mathematics and Computers in Simulation, 59 (5): 413-429 [10.1016/s0378-4754(01)00418-9]
Halem, M., J. Kouatchou, P. M. Norris, M. Rancic, and J. V. Geiger. 2002. "Cloud field assimilation using simulated Triana satellite data." Advances in Space Research, 30 (11): 2447-2454.
Kouatchou, J. 2001. "Finite differences and collocation methods for the solution of the two-dimensional heat equation." Numerical Methods for Partial Differential Equations, 17 (1): 54-63.
Kouatchou, J. 2001. "Parallel implementation of a high-order implicit collocation method for the heat equation." Mathematics and Computers in Simulation, 54 (6): 509-519 [10.1016/s0378-4754(00)00280-9]
Halem, M., A. Hudson, and J. Kouatchou. 2001. "Chapter 5 A retrospective analysis of the pioneering data assimilation experiments with the Mintz-Arakawa general circulation model." Circulation Model Development, 165-179 [10.1016/s0074-6142(00)80053-4]
Kouatchou, J., M. Rancic, P. Norris, and J. Geiger. 2000. "Implementation of an eta belt domain on parallel systems." Proceedings 15th International Parallel and Distributed Processing Symposium. IPDPS 2001, [10.1109/ipdps.2001.925173]
Zhang, J., L. Ge, and J. Kouatchou. 2000. "A two colorable fourth-order compact difference scheme and parallel iterative solution of the 3D convection diffusion equation." Mathematics and Computers in Simulation, 54 (1-3): 65-80 [10.1016/s0378-4754(00)00205-6]
Kouatchou, J., and J. Zhang. 2000. "Optimal injection operator and high order schemes for multigrid solution of 3D poisson equation." International Journal of Computer Mathematics, 76 (2): 173-190 [10.1080/00207160008805018]
Halem, M., J. Kouatchou, and A. Hudson. 2000. "A Retrospective Analysis of the Pioneering Data Assimilation Experiments with the Mintz-Arakawa General Circulation Model." General Circulation Model Development: Past, Present, and Future, 54: 165-179, ISBN: 0-12-578010-9.
Dorband, J., J. Kouatchou, J. Michalakes, and U. Ranawake. 1999. "Implementing MM5 on NASA Goddard Space Flight Center computing systems: a performance study." Proceedings. Frontiers '99. Seventh Symposium on the Frontiers of Massively Parallel Computation, [10.1109/fmpc.1999.750601]
Kouatchou, J. 1998. "Asymptotic Stability Of A 9-Point Multigrid Algorithm For Convection-Diffusion Equations." Electronic transactions on numerical analysis, 6:
Kouatchou, J. 1998. "A dynamic injection operator in a multigrid solution of convection-diffusion equations." Inter. Journal for Numerical Methods in Fluids, 26 (10): 1205-1216.
Gupta, M. M., J. Kouatchou, and J. Zhang. 1997. "Comparison of Second- and Fourth-Order Discretizations for Multigrid Poisson Solvers." Journal of Computational Physics, 132 (2): 226-232 [10.1006/jcph.1996.5466]
Liau, B., J. Lutton, and J. Kouatchou. 1994. "Pricing a network service in a competitive environment." Teletraffic Science and Engineering, 1195-1206 [10.1016/b978-0-444-82031-0.50121-9]
Kouatchou, J., A. Molod, J. E. Nielsen, and T. Clune. 2015. "GEOS-5 Chemistry Transport Model User's Guide." GMAO Office Note 8:
Sotiropoulou, R., N. Meskhidze, J. Kouatchou, and A. Nenes. 2011. "Sensitivity of cloud radiative forcing to cloud formation parameterization under three different meteorological fields." 2011 European Aerosol Conference
Eastham, S. D., M. S. Long, C. A. Keller, et al. E. Lundgren, R. M. Yantosca, J. Zhuang, C. Li, C. J. Lee, M. Yannetti, B. M. Auer, T. L. Clune, J. Kouatchou, W. M. Putman, M. A. Thompson, A. L. Trayanov, A. M. Molod, R. V. Martin, and D. J. Jacob. 2018. "GEOS-Chem High Performance (GCHP v11-02c): a next-generation implementation of the GEOS-Chem chemical transport model for massively parallel applications." Geoscientific Model Development 11 (7): 2941-2953 [10.5194/gmd-11-2941-2018]
Kouatchou, J., T. L. Clune, B. M. Auer, J. E. Nielsen, and A. M. Molod. 2017. "Parallel Performance Analysis of Two Infrastructure Frameworks for GMI Chemistry." American Meteorological Society’s Third Symposium on High Performance Computing for Weather, Water, and Climate
Liu, H., D. B. Considine, L. W. Horowitz, et al. J. H. Crawford, J. M. Rodriguez, S. E. Strahan, M. R. Damon, S. D. Steenrod, X. Xu, J. Kouatchou, C. Carouge, and R. M. Yantosca. 2016. "Using beryllium-7 to assess cross-tropopause transport in global models." Atmos. Chem. Phys. Discuss. 15 (18): 26131-26189 [10.5194/acp-16-4641-2016]
Elshorbany, Y. F., B. Duncan, S. Strode, J. Wang, and J. Kouatchou. 2016. "The description and validation of the computationally Efficient CH4–CO–OH (ECCOHv1.01) chemistry module for 3-D model applications ." Geoscientific Model Development 9 799-822 [doi:10.5194/gmd-9-799-2016]
Strode, S. A., B. N. Duncan, E. A. Yegorova, et al. J. Kouatchou, J. R. Ziemke, and A. R. Douglass. 2015. "Implications of carbon monoxide bias for methane lifetime and atmospheric composition in chemistry climate models." Atmospheric Chemistry and Physics 15 11789–11805 [10.5194/acp-15-11789-2015]
Kouatchou, J., A. Da Silva, and A. Oloso. 2015. "SIVO-PyD: A Python Distribution for Scientific Computing Visualization." NASA Tech Brief GSC-16530-1 [Full Text (Link)]
Kouatchou, J., and A. O. Oloso. 2014. "Portable Distributed Scripts (PoDS)." NASA Tech Brief GSC-16531-1 [Full Text (Link)]
Clune, T. L., K.-S. Kuo, S. Freeman, et al. R. Burns, C. A. Cruz, and J. Kouatchou. 2013. "Tool for Automated Retrieval of Generic Event Tracks (TARGET) ." NASA Tech Brief GSC-16665-1 [Full Text (Link)]
Meskhidze, N., R. Sotiropoulou, A. Nenes, J. Kouatchou, and J. M. Rodriguez. 2007. "Aerosol-cloud interactions in the NASA GMI: model development and indirect forcing assessments." Atmospheric Chemistry and Physics [10.5194/acpd-7-14295-2007]
Kouatchou, J. 2003. "Comparison of time and spatial collocation methods for the heat equation." Journal of Computational and Applied Mathematics 150 (1): 129-141 [10.1016/s0377-0427(02)00656-8]
Zhang, J., J. Kouatchou, and M. Othman. 2002. "On cyclic reduction and finite difference schemes." Journal of Computational and Applied Mathematics 145 (1): 213-222 [10.1016/s0377-0427(01)00576-3]
Zhang, J., J. Kouatchou, and L. Ge. 2002. "A family of fourth-order difference schemes on rotated grid for two-dimensional convection–diffusion equation." Mathematics and Computers in Simulation 59 (5): 413-429 [10.1016/s0378-4754(01)00418-9]
Halem, M., J. Kouatchou, P. M. Norris, M. Rancic, and J. V. Geiger. 2002. "Cloud field assimilation using simulated Triana satellite data." Advances in Space Research 30 (11): 2447-2454
Kouatchou, J. 2001. "Finite differences and collocation methods for the solution of the two-dimensional heat equation." Numerical Methods for Partial Differential Equations 17 (1): 54-63
Kouatchou, J. 2001. "Parallel implementation of a high-order implicit collocation method for the heat equation." Mathematics and Computers in Simulation 54 (6): 509-519 [10.1016/s0378-4754(00)00280-9]
Halem, M., A. Hudson, and J. Kouatchou. 2001. "Chapter 5 A retrospective analysis of the pioneering data assimilation experiments with the Mintz-Arakawa general circulation model." Circulation Model Development 165-179 [10.1016/s0074-6142(00)80053-4]
Kouatchou, J., M. Rancic, P. Norris, and J. Geiger. 2000. "Implementation of an eta belt domain on parallel systems." Proceedings 15th International Parallel and Distributed Processing Symposium. IPDPS 2001 [10.1109/ipdps.2001.925173]
Zhang, J., L. Ge, and J. Kouatchou. 2000. "A two colorable fourth-order compact difference scheme and parallel iterative solution of the 3D convection diffusion equation." Mathematics and Computers in Simulation 54 (1-3): 65-80 [10.1016/s0378-4754(00)00205-6]
Kouatchou, J., and J. Zhang. 2000. "Optimal injection operator and high order schemes for multigrid solution of 3D poisson equation." International Journal of Computer Mathematics 76 (2): 173-190 [10.1080/00207160008805018]
Halem, M., J. Kouatchou, and A. Hudson. 2000. "A Retrospective Analysis of the Pioneering Data Assimilation Experiments with the Mintz-Arakawa General Circulation Model." General Circulation Model Development: Past, Present, and Future 54 165-179
Dorband, J., J. Kouatchou, J. Michalakes, and U. Ranawake. 1999. "Implementing MM5 on NASA Goddard Space Flight Center computing systems: a performance study." Proceedings. Frontiers '99. Seventh Symposium on the Frontiers of Massively Parallel Computation [10.1109/fmpc.1999.750601]
Kouatchou, J. 1998. "Asymptotic Stability Of A 9-Point Multigrid Algorithm For Convection-Diffusion Equations." Electronic transactions on numerical analysis 6
Kouatchou, J. 1998. "A dynamic injection operator in a multigrid solution of convection-diffusion equations." Inter. Journal for Numerical Methods in Fluids 26 (10): 1205-1216
Gupta, M. M., J. Kouatchou, and J. Zhang. 1997. "Comparison of Second- and Fourth-Order Discretizations for Multigrid Poisson Solvers." Journal of Computational Physics 132 (2): 226-232 [10.1006/jcph.1996.5466]
Liau, B., J. Lutton, and J. Kouatchou. 1994. "Pricing a network service in a competitive environment." Teletraffic Science and Engineering 1195-1206 [10.1016/b978-0-444-82031-0.50121-9]
Kouatchou, J., A. Molod, J. E. Nielsen, and T. Clune. 2015. "GEOS-5 Chemistry Transport Model User's Guide." GMAO Office Note 8
Sotiropoulou, R., N. Meskhidze, J. Kouatchou, and A. Nenes. 2011. "Sensitivity of cloud radiative forcing to cloud formation parameterization under three different meteorological fields." 2011 European Aerosol Conference