Standard Project Storm (SPS)
Standard Project Storm (SPS) :
"The SPS is a hypothetical storm having the most severe flood-producing rainfall depth-area-duration relationship and areal distribution pattern that is considered reasonably characteristic of the region in which the drainage area is located. It is developed by studying the major storm events in the region, excluding the most extreme. Development of the SPS may involve transposition and adjustment of a large storm from its observed location to the locality of concern" (USACE, Water Resources Policies and Authorities.., 1999, 13-2)
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