THE WORLD’S LARGEST ship model is turning 100 years old this year. Ensconced in a “brick berth,” Lagoda is a half-scale model of a 19th-century whaling ship owned by New Bedford’s Jonathan Bourne, a prominent whaling fl eet owner. Bourne’s daughter, Emily, had the model and the museum building erected in honor of her father. The New Bedford Whaling Museum (whalingmuseum.org) is marking the 100th anniversary all year with lectures, tours, presentations and family programming, supported by the National Park Service. On Saturday, Aug. 6, the Museum hosts the Lagoda Centennial Gala.