General Structure and Writing Style. The function of a research design is to ensure that the evidence obtained enables you to effectively address the research problem logically and as unambiguously as possible.
ALLEGHENY RIVER HISTORY. Location: A river rising in north-central Pennsylvania and flowing about 523 km (325 mi) northwest into New York then southwest into Pennsylvania again, where it joins the Monongahela River at Pittsburgh to form the Ohio River.
The climate in the Allegheny River watershed is characterized by cold snowy winters and cool wet summers (Smith 1985). Mean annual temperatures range between 2.25 degrees C and 13.47 degres C and mean annual precipitation ranges between 85.95 and 124.71 cm (Northeast Regional Climate Center 1999).