Data Requirements and Data Base Issues

The scope of "Windows to the Universe" spans the Space science discipline, with additional components from the Earth sciences including aspects of geodynamics, and atmospheric and oceanic composition and dynamics. There are numerous data bases within the scope of the CAN which will be utilized in this project. These data sets include, but are not limited to, data obtained during the Voyager 1 and 2, Galileo, Pioneer Venus, Magellan, Viking, Dynamics Explorer 1 and 2, Pioneer 10 and 11, ISEE 1, 2, and 3, IMP 8, Skylab, Helios 1 and 2, COBE, ROSAT, IUE, Yohkoh, and IRAS missions. These as well as other data bases which may be utilized for this project are available through the Space Science Data Operations Office, (SSDOO) headed by our Co-I, Dr. James Green. Hubble Space Telescope and Clementine images will be obtained via ftp access over the Internet. Data pertaining to various aspects of geodesy and geodynamics can also be obtained electronically over the Internet or on CD-ROM from a variety of sources, including the USGS. Sample resources include the National Earthquake Information System at USGS, the Incorporated Research Institutes for Seismology Gopher System, the National Geophysical Data Center Global Topography and Bathymetry CD-ROM, and the Space Radar Laboratory-1 Synthetic Aperature Radar Images. Virtually all data sets to be used in this effort are free or will be provided to us at no charge by the SSDOO. During the first six months of project funding, a detailed three-year plan for structured and scalable development of "Windows to the Universe" will be developed, including a complete list of the data bases, images, and measurements to be used.

There is also a great deal of data available at various stages of processing ranging from raw, unprocessed measurements of ion velocities to hourly averaged solar wind magnetic field and plasma data (the OMNI data set). These data include measurements of numerous physical parameters. We will incorporate graphical representations of appropriate data selected from these sources to illustrate aspects of the scientific results obtained from remote sensing and in situ measurements. In addition, relevant results in the scientific literature will be explained and referenced, and graphics from these studies will be included where appropriate with the permission of the authors. In addition to Dr. Green, participants in this study have unique access to specific data sets or models which may be used in "Windows to the Universe". Dr. Johnson has extensive experience with models of the magnetosphere-ionosphere-atmosphere [Johnson and Virdi, 1991, Killeen et al., 1993]. Dr. Clarke is a scientist on the Hubble Space Telescope team. Dr. Linker is an expert in magnetospheric as well as solar magnetohydrodynamic simulations [Linker et al., 1991; Linker et al., 1992]. Finally, Dr. Alexander and Mr. Clarke are both members of the Galileo spacecraft team, and provide unique insight to measurements which will be obtained during the Jovian encounter phase of the mission scheduled for December of 1995.