Analysis of summer temperature data from Indiana waters of Lake Michigan, 1983-1992 : an honors thesis (HONRS 499)

Abstract

The influences of temperature in an aquatic system are reflected in its productivity, species composition, and water quality. Studies of temperature patterns may provide insight to the relative condition of a system with respect to these characteristics. Such studies may also be useful in assessing the effects and potential effects of global climate warming. Summer temperature profile data taken during June through August of 1983 to 1992 at a fish sample location in Lake Michigan near Michigan City, Indiana were analyzed for trends and anomalies. Progressive temperature increases were observed for the summer months, along with occurrences of extreme temperatures likely due to severe weather events. Evidence of thermoclines in the study areas were consistent with the pattern for dimictic lakes like Lake Michigan. No significant warming trends were detectable over the ten-year period.