 The researches of George Simpson, meteorologist on Scott's Terra Nova Expedition established that Minna Bluff has an effect on polar weather.The mass of the Bluff deflects eastward the southerly winds which sweep along the Ross Ice Shelf's eastern edge, and this deflection is then divided when the winds reach Ross Island some 50 miles further north.One stream sweeps into McMurdo Sound, the other goes eastward to Cape Crozier.