A bibliometric survey of the fields of solar and space physics was conducted to provide a measure of the health of the field. Using the Thomsen-ISI (Institute for Scientific Information) Web of Science bibliometric database, the number of publications in the three broad areas of solar and space physics (solar and heliospheric physics, magnetospheric physics, and upper atmosphere and ionospheric physics) were examined for the period 2001 to 2009. The results shown in Figure D.9 indicate that the fields have experienced significant growth over the decade, with productivity increasing overall in the latter half of the decade. The share of U.S. publications relative to the rest of the world over this time interval has remained constant, with about 50 percent of the total papers published by U.S. investigators. The subdiscipline with the most variability year-to-year is magnetospheric physics, and it shows a 7 percent decline from 2008 to 2009.


FIGURE D.9 Number of papers published in solar and space physics, worldwide. SOURCE: Courtesy of Mark Moldwin, Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, for the Education and Workforce Working Group of the Decadal Strategy for Solar and Space Physics (Heliophysics).


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