Hourly time series of Ives Lake (Huron Mountains, Marquette County, MI) Water Temperature-Depth Profiles, 2013-2022 (continuing study)

Long-term measurements of lake temperatures are essential to providing insights into local and regional changes in climate since large, still water bodies effectively act as a high-frequency filter. Ives Lake is a 30.7 m deep water body in northern Marquette County, in Michigan's Upper Peninsula. Beginning in 2013, temperature readings have been collected hourly from a string of twelve sensors located near the deepest point of the lake (approximately 46.84874 N lat, 87.84895 W long; identified by sonar survey in 2010 by first author). Measurements are continuing. The purpose of the project is to collect a data record of sufficient duration to determine if water temperatures are warming, and if the dates of autumn lake turnover are shifting toward later in the year.

湖泊水温长期监测对于揭示局地及区域气候变化规律至关重要，因为大型静止水体可有效充当高频滤波器。艾夫斯湖（Ives Lake）是坐落于密歇根州上半岛马凯特县北部的水体，最大水深达30.7米。自2013年起，研究团队在该湖最深处附近垂向串列布设的12台传感器，已实现每小时一次的水温数据采集；该测点经第一作者于2010年通过声呐勘测确定，坐标约为北纬46.84874°、西经87.84895°。目前该监测工作仍在持续推进中。本项目旨在获取足够长期的观测数据集，以明确湖体水温是否呈现上升趋势，以及秋季湖泊翻转的发生日期是否存在延后情况。