FIGURE 4.1 Growth of space physics community within the American Geophysical Union.

FIGURE 4.2 Growth of American Astronomical Society's Solar  Physics Division membership. 

Source: Karen Harvey, AAS/SPD Treasurer.

time intervals over which data are available. The data on percentage growth for federally funded basic research, for the National Aeronautics and Atmospheric Administration's (NASA) Office of Space Science and Applications (OSSA) research funding, and for the National Science Foundation's (NSF) research funding are taken directly from Chapter 3, Figure 3.1, and Table 3.1. Table 4.1 shows that the growth in the size of the space physics field occurred at essentially the same rate as the funding increases experienced over the past 10 to 20 years.

The growth in AGU membership presented above is also reflected in levels of activity over the same period. Figure 4.3 shows the total attendance at national AGU meetings, together with the number of abstracts submitted. The number

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