Fridtjof Nansen particularly in the polar regions. The Nansen family originated in Denmark. Hans Nansen (1598–1667), a trader, was an early explorer of the White Sea region of the Arctic Ocean. In later life he settled in Copenhagen, becoming the city's "borgmester" in 1654. Later generations of the family lived in Copenhagen until the mid-18th century, when Ancher Antoni Nansen moved to Norway (then in a union with Denmark). His son, Hans Leierdahl Nansen (1764–1821), was a magistrate first in the Trondheim district, later in Jæren. After Norway's separation from Denmark in 1814, he entered national political life as the representative for
Sistan Basin Mount Khajeh, rises beside the lakes and marshes of the basin. The lowest part of the Sistan Basin contains a series of shallow lakes, known as "hamuns". It appears that in the past there was a single Hamun Lake, but there are now three separate lakes. From north to south the lakes are: The Hamun-e Puzak lies mostly in Afghanistan. It receives water from the Shelah Charkh channel of the Helmand River, and also from the Khash River and other small rivers. The Hamun-e Sabari is split between Iran and Afghanistan. It receives water from the Parian branch of Helmand