Retreat of glaciers since 1850 doing so due to transient local weather conditions, which have brought more precipitation and cloudier, cooler summers since 2002. Tropical glaciers are located between the Tropic of Cancer and the Tropic of Capricorn, in the region that lies 23° 26′ 22″ north or south of the equator. Strictly, a tropical glacier is located within the astronomical tropics; the area where the annual temperature variation is less than the daily variation, and is within the oscillation area of the Intertropical Convergence Zone. Tropical glaciers are the most uncommon of all glaciers for a variety of reasons. Firstly, the regions are the
Capricorn and Bunker Group One Tree Island or Mast Head. The vessel was built in 1861 at Ulladulla New South Wales and registered in Sydney with the Official number of 36858 and a Registered number of 9/1861 with a gross tonnage of 80 tons and 82 feet in length Hannah Broomfield a brigantine was lost on 30 April 1872 in the vicinity of the northern edge of the Capricorn Islands Most of her cargo and gear was recovered and the vessel was latter refloated from Broomfield Reef but some time later wrecked in New Zealand in 1880. Built in the Tweed River of New