Members from Coast Guard Stations St. Ignace and Duluth, and a member working with the Coast Guard Research and Development Center, participate in an ongoing field exercise on Green Bay in northern Wisc., Feb. 15, 2013. Data and information gathered will be used to assist search and rescue responders on the Great Lakes and to help decrease time needed to locate a person in distress on ice. U.S. Coast Guard photo by Chief Petty Officer Alan Haraf