Their methods were a little different: they focused on 7 - day
rainfall totals rather than 3 - day totals, for example, and checked for the influence of El Niño / La Niña conditions.
Not exact matches
However, many processes that remove water from the atmosphere (i.e. cloud formation and
rainfall) have a clear functional dependence on the relative humidity
rather than the
total amount of water (i.e. clouds form when air parcels are saturated at their local temperature, not when humidity reaches X g / m3).
My goal is to justify a Levy distribution for daily
rainfall totals based on some
rather well - understood physics (which doesn't appear to be known by hydrologists) in order to motivate those with lotsa data to see how well the Levy distribution fits the data.