Climate and Thermodynamics Laboratory

Department of Environmental Sciences, Hiroshima University.

Dr. of Sci. Hokkaido University, 1991.

Research associate, Swiss Federal Institute of Technology (ETH) 1992-1995.

Senior
researcher, Frontier Research Center for Global Change, JAMSTEC, 1997-2004.

・ Role of thermodynamics in the Earth climate system and other non-equilibrium systems.

・ General interests in pattern formations in dissipative systems.

・ Thermodynamic approach to a theory of turbulence.

・ Quantitative GAIA hypothesis

**Recent publications** (1997-)

・
Ozawa,
H., and A. Ohmura, Thermodynamics of a global-mean state of the atmosphere--A state of maximum entropy increase, *J. Climate* **10,** 441-445, 1997.

・
Ozawa, H., Thermodynamics of frost heaving: A thermodynamic proposition for dynamic phenomena, *Physical Review* E **56,** 2811-2816, 1997.

Introduced in *Physics News Update* and *Physics News Graphics* by P. F. Schewe at AIP.

Also
introduced in *New Scientist* (No. 2099, 13 Sept. 1997, p. 20) by B. Crystall and in *Parity* (Vol. 12, No. 11, 1997, p. 36).

・
Ozawa,
H., K. Goto-Azuma, K. Iwanami, and R. M. Koerner, Cirriform rotor cloud
observed on a Canadian Arctic ice cap, *Monthly Weather Review* **126,** 1741-1745, 1998.

・ Shimokawa, S., and H. Ozawa, The entropy production rate in the ocean general circulation system, in Research Activities in Atmospheric and Oceanic Modelling (Ed. A. Staniforth) WMO (Geneva) 8.41-42, 1998.

・
Minobe, S., Y. Kanamoto, N. Okada, H. Ozawa, and M. Ikeda, Plume structures in deep convection of rotating fluid, *Nagare Multimedia 2000, Nagare 19*, 2000.

・
Shimokawa, S., and H. Ozawa, On the thermodynamics of the oceanic general circulation: Entropy increase rate of an open dissipative system and its surroundings, *Tellus* A **53****,** 266-277, 2001.

・
Ozawa, H., S. Shimokawa, and H. Sakuma, Thermodynamics of fluid turbulence: A unified approach to the maximum transport properties, *Physical Review* E **64****,** 026303, 2001.

・
Shimokawa, S., and H. Ozawa, On the thermodynamics of the oceanic general circulation: Irreversible transition to a state with higher rate of entropy production, *Quart. J. Roy. Met. Soc.* **128,** 2115-2128, 2002.

Introduced in *Science ***299,** 837-838, 2003 and *Nature ***436,** 905-907, 2005.

・
Ozawa, H., A. Ohmura, R. D. Lorenz, and T. Pujol, The second law of thermodynamics and the global climate system: A review of the maximum entropy production principle, *Reviews of Geophysics* **41,** 1018, 2003 (doi: 10.1029/2002RG000113).

・ Shimokawa, S., and H. Ozawa, Thermodynamics of the ocean circulation: A global perspective on the ocean system and living systems, in "Non-equilibrium Thermodynamics and the Production of Entropy: Life, Earth, and Beyond" (A. Kleidon and R. D. Lorenz, Eds.) Chap. 10, 121-134, Springer-Verlag, Berlin, 2005.

・
Shimokawa, S., and H. Ozawa, Thermodynamics of irreversible transitions in the oceanic general circulation, *Geophysical Research Letters* **34,** L12606, 2007 (doi: 10.1029/2007GL030208).

Introduced in *AGU Journal Highlights
(Editor’s
Highlight)*.

・
Nohguchi, Y., and H. Ozawa, On the vortex formation at the moving front of lightweight granular particles, *Physica* D **238****,** 20-26, 2009.

・ Shimokawa, S., and H. Ozawa, Thermodynamics of the oceanic general circulation - Is the abyssal circulation a heat engine or a mechanical pump?, in "Thermodynamics - Interaction Studies - Solids, Liquids and Gases" (J. C. Moreno-Piraján, Ed.) Chap. 6, 147-162, InTech, Rijika, 2011.

・ Ozawa, H., and S. Shimokawa, The time evolution of entropy production in nonlinear dynamic systems, in "Beyond the Second Law: Entropy Production and Non-Equilibrium Systems” (R. C. Dewar, C. H. Lineweaver, R. K. Niven, and K. Regenauer-Lieb, Eds.) Chap. 6, 113-128, Springer, Berlin, 2014.

・ Fukumura, Y., and H. Ozawa, Entropy production in planetary atmospheres and its applications, in "Beyond the Second Law: Entropy Production and Non-Equilibrium Systems” (R. C. Dewar, C. H. Lineweaver, R. K. Niven, and K. Regenauer-Lieb, Eds.) Chap. 11, 225-239, Springer, Berlin, 2014.

・
Shimokawa, S., T. Kayahara, and H. Ozawa, Maximum potential intensity of typhoon as information for possible natural disaster, *Asian Journal of Environment and Disaster Management* **6****,** 69-81, 2014.

・
Ozawa, H., and S. Shimokawa, Thermodynamics of a tropical cyclone: generation and dissipation of mechanical energy in a self-driven convection system, *Tellus* A **67****,** 24216, 1-14, 2015 (doi: 10.3402/tellusa.v67.24216).

・ Niven, R. K., and H. Ozawa, Entropy production extremum principles, in "Handbook of Applied Hydrology" (V. P. Singh, Ed.), McGraw-Hill, New York, 2016 (in press).

・ Ozawa, H., Thermodynamics of frost heaving: Non-Newtonian dynamics found in a nonequilibrium system and its implication for general dynamic phenomena, in Book of Abstracts, XXth IUPAP International Conference on Statistical Physics, Paris, UNESCO, POa02/37, 1998.

・ Ozawa, H. and A. Ohmura, On self-regulation of the atmosphere at a state of maximum entropy increase, in Abstracts, Nonlinear Variability in Geophysics and Astrophysics 4, EGS Richardson conference, Roscoff, France, 41, 1998.

・
Ozawa, H., S. Shimokawa, H. Sakuma, and A. Ohmura,
Entropy and climate: the nature of entropy change in the global climate system, *EOS transactions ***80****,** F31, 1999.

・
Ozawa, H., S. Shimokawa, S. Minobe, and H. Sakuma, Entropy and climate II: A unified approach to the long-term stability of the global climate and fluid turbulence, *EOS transactions ***82,** S211, 2001.

・
Ozawa, H. and A. Ohmura, The second law of thermodynamics and the global climate: A review (invited), *EOS transactions* **82,** S12, 2001.

・
Ozawa, H., S. Shimokawa, and H. Sakuma, A unified theory of turbulence: Maximum entropy increase due to turbulent dissipation in fluid systems from laboratory-scale turbulence to global-scale circulations, *Geophysical Research Abstracts* **4,** 00799, 2002.

・ Ozawa, H., Maximum entropy production in the climate system: Validation with numerical models and its implication, Daisyworld and Beyond Workshop, Edinburgh, 2002.

・ Ozawa, H., Applications of the maximum entropy production principle to the climate system and granular flows, Maximum Entropy Production Workshop, INRA Bordeaux, 2003.

・
Ozawa, H., The nature of entropy change in the global climate system: A review of the maximum entropy production principle, *Geophysical Research Abstracts* **5,** 04742, 2003.

・
Ozawa, H., S. Shimokawa, S. Minobe, and H. Sakuma, A general tendency of turbulent fluid systems toward a state of maximum entropy production revealed by numerical experiments, *Geophysical Research Abstracts* **5,** 04752, 2003.

・ Ozawa, H., S. Shimokawa, and H. Terasaka, Dynamic regulation of the global climate system and fluid turbulence at states of maximum entropy production, AOGS 1st Annual Meeting, Singapore, 2004.

・
Ozawa, H., and S. Shimokawa, Entropy reduction and regular pattern formation in a nonlinear non-equilibrium system: An energetic approach, *EOS transactions* **86,** NG23A-0092, 2005.

・ Ozawa, H., and S. Shimokawa, Maximum entropy production and regular pattern formation in nonlinear non-equilibrium phenomena, 4th International Meeting on Maximum Entropy Production in Physics and Biology, Split, Croatia, 2006.

・ Ozawa, H., and S. Shimokawa, Maximum extraction and dissipation of available energy: Homogeneous turbulence, ocean circulation and tropical cyclones, Computational Modelling of the Earth/Life System: A Workshop on Daisyworld and the Principle of Maximum Entropy Production, Lisbon, Portugal, 2007.

・ Ozawa, H., and S. Shimokawa, Kolmogorov’s power law of turbulence deduced from a state of maximum entropy production, Workshop on Maximum Entropy Production: Earth, Life and Physical Approaches, Kyoto, Japan, 2008.

・ Ozawa, H., Maximum entropy production and regular pattern formation in systems far from equilibrium, Workshop on Maximum Entropy Production in the Earth System, Max-Planck-Institute for Biogeochemistry, Jena, Germany, 2009.

・ Ozawa, H., and S. Shimokawa, Generation and dissipation of mechanical work in a self-driven convection system, Workshop on Maximum Entropy Production in the Earth System, Max-Planck-Institute for Biogeochemistry, Jena, Germany, 2009.

・
Niven, R., and H. Ozawa, Conditional derivation of the maximum entropy production principle and its application to planetary climate systems, *Geophysical Research Abstracts* **13,** 14060, 2011.

・ Ozawa, H., and S. Shimokawa, Entropy production in non-equilibrium systems: A min/max paradox in regime selection of nonlinear phenomena, Workshop on Maximum Entropy Production, Australian National University, Canberra, Australia, 2011.

・ Ozawa, H., and S. Shimokawa, General characteristics of entropy production in nonlinear dynamic systems, in Proceedings of the 12th Joint European Thermodynamics Conference (M. Pilotelli and G.P. Beretta, Eds.) 121-126, 2013.

Workshop on Maximum Entropy Production: Earth, Life and Physical Approaches, Kyoto, Japan.

For foreign students/researchers.

For domestic students/researchers.

**Hisashi Ozawa, Dr./Associate Professor**

Department of Environmental Sciences

Graduate School of Integrated Arts and Sciences

Hiroshima University

Kagamiyama 1-7-1

Higashi-Hiroshima
739-8521, Japan

Phone: +81 82 422 7111

Fax: +81 82 424 0758

E-mail:
hozawa AT hiroshima-u.ac.jp

(Last updated 8 December, 2015)