Hans Ø, celebrated island of Nares Strait between Greenland and Canada: from dog-sledge to satellite mapping

Hans Ø – or Tartupaluk to the indigenous population of North-West Greenland – is a small steeply sided island in Nares Strait at c. 80°50´N. Charted in 1871 and named after Greenlander Hans Hendrik, it is one of five limestone islands forming an integral part of the Greenland Silurian succession. Rising less than 170 m above normally ice-infested waters, the 1.25 km² island is physiographically far overshadowed by nearby Franklin Ø (Fig. 1). The island’s notoriety results from its placing more or less equidistant between the coasts of Kennedy Channel on the political boundary between Greenland and Canada. For 40 years the rocky patch has been the subject of a dispute be tween the Danish/Greenland and Canadian governments regarding sovereignty rights, an issue that remains unresolved. However, there is mutual understanding between Canada and Denmark that “since the question of sovereignty over the island has not yet been solved no action should be taken by either side which might prejudge the settlement of the issue” (Brückner 1984). Formally, this remains the position today.