PNNL

Abstract

Humans have entered into and explored a wide range of environments, ranging from the deep ocean to the upper atmosphere and even outer space. But for the most part, the subsurface environment hidden beneath the surface of our planet remains enigmatic and directly observable only through limited points of access. Nevertheless, physical, chemical and biological processes in Earth’s subsurface are central players in several interrelated energy and environmental issues critical to the world’s security and economy. Leadership-class computing will soon be brought to bear on understanding and predicting these processes across a wide range of time and space scales.