The risk of rainstorm disaster is expected to increase with rising disaster losses as a consequence. Besides the uncertainty of frequency and severity of rainfalls, it can also be attributed to the expansion of settlement and industrial areas and the resulting accumulation of population and assets. Therefore, it’s important to both analyze historical precipitation and estimate land use conditio...

Modeling and forecasting dynamics of rainfall occurrences constitute one of the major topics, which have been largely treated by statisticians, hydrologists, climatologists and many other groups of scientists. In the same issue, we propose, in the present paper, a new hybrid method, which combines Extreme Values and fractal theories. We illustrate the use of our methodology for transformed Embe...

Many older cities have “combined” sewer systems that collect both sewage and stormwater runoff in the same pipe for transport to a wastewater treatment plant. During heavy rainfalls, these combined systems can become overloaded, and water utilities must discharge the excess— what’s known as a combined sewer overflow (CSO)—into rivers and other water bodies, which may be the local source of drin...

In Burkina Faso, the cyclical vectors of African animal trypanosomoses (AAT) are riverine tsetse species, namely Glossina palpalis gambiensis Vanderplank (G.p.g.) and Glossina tachinoides Westwood (G.t.) (Diptera: Glossinidae). Experimental work demonstrated that environmental stress can increase the sensitivity of tsetse to trypanosome infection. Seasonal variations of the tsetse infection rat...