National Aeronautics and Space 

 Administration (NASA) 



Improved design and simulation of aerospace vehicles and increased ability of scientists to 

 model the Earth's climate and to forecast global environmental trends are NASA's strategic 

 goals within the HPCC Program. These goals also include broadening the information appli- 

 cations of HPCC in areas complementary to NASA's expertise, and in areas important to the 

 development of the National Information Infrastructure. To reach these goals, NASA partici- 

 pates in the development and use of the advanced high performance computing and commu- 

 nications systems and tools piloted in each of the five components of the HPCC Program. 



Simulation of three-dimensional distribu- 

 tion of the Earth's ozone layer. Latitude 

 and longitude slices illustrate the vary- 

 ing ozone content. 



HPCS and ASIA: The Grand Challenge in 

 Aeronautics 



Improved design and simulation of advanced aerospace 

 vehicles at reduced cost will enable the U.S. to enhance 

 its leadership in aerospace trade, especially as future 

 aerospace vehicles become more difficult and expensive 

 to simulate. In the HPCS component, NASA procures 

 and evaluates prototype, scalable parallel computing 

 systems used to develop advanced algorithms and soft- 

 ware tools. This systematic approach is important for 

 developing improved methodologies and software tools 

 to model aerodynamics, aerobraking, heat transfer, com- 

 bustion, and other engine elements through the full flight 

 envelope of the aerospace vehicle (from vehicle takeoff, 

 to flight at different altitudes and conditions, to landing). 



HPCS and ASTA: The Grand Challenges in the 

 Earth's Environment 



NASA's Earth and Space Sciences (ESS) project is 

 developing multidisciplinary models of physical, chemi- 

 cal, and biological phenomena that will lead to more 

 accurate environmental simulations. Challenges range 

 from analysis of the interactions among Earth's atmo- 

 sphere, oceans, and land masses, to the reconstruction 

 of planetary evolution. A crucial aspect of this program 

 is the development of software management systems to 

 handle the volumes of scientific data that will be pro- 

 duced late in this decade; multiple terabytes of data will 

 be transmitted and stored each day and will rely on the 

 high performance data management, storage systems, 

 and communications systems developed through the 

 HPCC Program. 



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