Changes in open lead at bottom of Peirce's Island No flash player has been set up. Please select a player to play Flash videos. Video not playing? Update your browser or download the video clip Knut Kielland discusses changes in the open lead at the bottom of Peirce's Island over the course of a month. Process Observed: Seasonal ChangeOpen Water (Lead) Date Process Observed: Wednesday, March 23, 2011 Galleries: Bottom of Peirce's Island Gallery