Question: Eric Rignot is the Professor of Earth system science in what country?

Context paragraphs:
Centre for Earth Science Studies: The National Centre for Earth Science Studies(NCESS) (Malayalam: ദേശിയ ഭൂമി ശാസ്ത്ര പഠന കേന്ദ്രം) is an autonomous research centre to promote scientific and technological research and development studies in the earth sciences.  NCESS pursues problems related to land, sea and atmosphere.  It was instituted by the government of Kerala in 1978, at Thiruvananthapuram, Kerala.  CESS was the earliest institute in the country to embrace the concept of Earth System Science (ESS).  CESS contributions over the years have enhanced knowledge of the geological evolution of south India, the complexity of coastal processes and natural hazards, as well as in proposing mitigatory measures to deal with natural hazards.

Eric Rignot: Eric Rignot is Professor of Earth system science at the University of California, Irvine, and principal scientist for the Radar Science and Engineering Section at NASA's Jet Propulsion Laboratory.

Steven J. Davis: Steven J. Davis is an earth system scientist at the University of California, Irvine's Department of Earth System Science.

Earth System Science Partnership: The Earth System Science Partnership (ESSP) is a partnership under the auspices of the International Council for Science (ICSU) for the integrated study of the Earth system, the ways that it is changing, and the implications for global and regional sustainability.  It includes Diversitas, IGBP, WCRP and IHDP.

Rignot Glacier: Rignot Glacier ( ) is a glacier about 4 nautical miles (7 km) long draining north from the King Peninsula into Abbot Ice Shelf.  Named by Advisory Committee on Antarctic Names (US-ACAN) after Eric Rignot, Jet Propulsion Laboratory, California Institute of Technology, geophysicist; uses field and remotely sensed data to study Antarctic glacier mechanics from the 1990s to the present.

Jasper A. Vrugt: Jasper A. Vrugt (born 1976) is a Dutch scientist/engineer/applied mathematician known for his work in the earth sciences: surface hydrology, soil physics, hydrogeophysics, hydrometeorology, and geophysics.  Vrugt is an assistant professor at the University of California, Irvine and holds a joint appointment in the Department of Civil and Environmental Engineering and the Department of Earth System Science.  He also holds a part-time appointment as associate professor at the University of Amsterdam, Faculty of Science (CGE).

Earth system science: Earth system science (ESS) is the application of systems science to the Earth sciences.  In particular, it considers interactions between the Earth's "spheres"—atmosphere, hydrosphere, cryosphere, geosphere, pedosphere, biosphere, and, even, the magnetosphere—as well as the impact of human societies on these components.  At its broadest scale, Earth system science brings together researchers across both the natural and social sciences, from fields including ecology, economics, geology, glaciology, meteorology, oceanography, paleontology, sociology, and space science.  Like the broader subject of systems science, Earth system science assumes a holistic view of the dynamic interaction between the Earth's spheres and their many constituent subsystems, the resulting organization and time evolution of these systems, and their stability or instability.  Subsets of Earth system science include systems geology and systems ecology, and many aspects of Earth system science are fundamental to the subjects of physical geography and climate science.

Jet Propulsion Laboratory: The Jet Propulsion Laboratory (JPL) is a federally funded research and development center and NASA field center in La Cañada Flintridge, California and Pasadena, California, United States.

Yellowstone (supercomputer): Yellowstone is the inaugural computing resource at the NCAR-Wyoming Supercomputing Center (NWSC) in Cheyenne, Wyoming.  It was installed, tested, and readied for production in the summer of 2012.  Yellowstone is a highly capable petascale system designed for conducting breakthrough scientific research in the interdisciplinary field of Earth system science.  Scientists use this computer and its associated resources to model and analyze complex processes in the atmosphere, oceans, ice caps, and throughout the Earth system, accelerating scientific research in climate change, severe weather, geomagnetic storms, carbon sequestration, aviation safety, wildfires, and many other topics.  Funded by the National Science Foundation and the State and University of Wyoming, and operated by the National Center for Atmospheric Research, Yellowstone’s purpose is to improve the predictive power of Earth system science simulation to benefit decision-making and planning for society.

Journal of Earth System Science: The Journal of Earth System Science is a bimonthly peer-viewed scientific journal that covers research on Earth system science.  It was established in 1978 and is published by Springer Science+Business Media on behalf of the Indian Academy of Sciences.  The editor-in-chief is D. Shankar (National Institute of Oceanography).

Supporting paragraphs: Eric Rignot Jet Propulsion Laboratory
Answer: United States