• Population Influences on Tornado Reports in the United States 

    Anderson, Christopher J.; Wikle, Christopher K., 1963-; Zhou, Qin; Royle, J. Andrew (Weather and Forecasting, 2005-04)
    The number of tornadoes reported in the United States is believed to be less than the actual incidence of tornadoes, especially prior to the 1990s, because tornadoes may be undetectable by human witnesses in sparsely ...