Computational Physics, Inc. (CPI) performs a broad range of scientific services for understanding and describing the earth's atmosphere from the planet's surface to outer space, the objects in orbit about the planet, as well as the information technology (IT) services required to support such activities. The firm also addresses remote sensing of the Earth's complete environment, including the terrain, oceans, the lower and middle atmospheres (including clouds), ionospheric effects on signals, data assimilation techniques for specification of the state of the global ionosphere, software architectures using object-oriented concepts for distributed processing, and architectures and techniques for integration of satellite ground data processing systems.The firm is based in Virginia and has an office in Boulder, CO.