THE RESPONSE OF THE THERMAL STRATIFICATION OF SOUTH BAY (LAKE-HURON) TO CLIMATIC VARIABILITY

Citation
Jr. King et al., THE RESPONSE OF THE THERMAL STRATIFICATION OF SOUTH BAY (LAKE-HURON) TO CLIMATIC VARIABILITY, Canadian journal of fisheries and aquatic sciences, 54(8), 1997, pp. 1873-1882
Citations number
38
Categorie Soggetti
Marine & Freshwater Biology",Fisheries
ISSN journal
0706652X
Volume
54
Issue
8
Year of publication
1997
Pages
1873 - 1882
Database
ISI
SICI code
0706-652X(1997)54:8<1873:TROTTS>2.0.ZU;2-R
Abstract
The 37-year record (1955-1992) of water temperature profiles and corre sponding meteorology for South Bay (Lake Huron) provide an extensive e mpirical data set for the study of climate variability and correspondi ng alterations in lake thermal structure. Thermoclines became shallowe r over this period and epilimnetic temperatures increased. Canonical a nalyses correlated warm May-July air temperatures and high July-August solar radiation with warmer epilimnia, larger thermal gradients acros s the thermocline, and shallower thermoclines. Multivariate canonical scores indicate that these thermal responses have increased in paralle l with the recent warming trend since the mid-1960s. Anomalous multiva riate scores correspond to El Nino events, and an extreme low score co rresponds to the Mount Pinatubo cooling effect of 1992.