FIGURE 3-1 Evidence of a rapidly growing body of refereed publications directly related to TRMM. The data are obtained by searching the Institute for Scientific Information’s Science Citation Index for papers that mention TRMM either in the title, abstract, or keywords. Papers dealing with operational aspects are based on terms such as “real-time,” “operational,” and “assimilation.” SOURCE: Matthias Steiner, Princeton University.


One proxy measure of TRMM’s effect on the scientific enterprise and technology development is the dramatically increasing number of refereed publications that mention TRMM (see Figure 3-1).1 The TRMM launch triggered a flood of research that led to significant improvements in our understanding of tropical weather systems and their prediction, as well as quantification of key


Note that the true impact of TRMM goes significantly beyond publications that specifically mention TRMM. Much research has been facilitated by TRMM support, but there is no reasonable way to grasp the full extent of TRMM’s influence.

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