Jan Mayen is a Norwegian volcanic island in the Arctic Ocean with no permanent population. It is 55 km (34 mi) long (southwest-northeast) and 373 km2 (144 sq mi) in area, partly covered by glaciers. It has two parts: larger northeast Nord-Jan and smaller Sør-Jan, linked by a 2.5 km (1.6 mi) wide isthmus. It lies 600 km (370 mi) northeast of Iceland, 500 km (310 mi) east of central Greenland, and 900 km (560 mi) northwest of Vesterålen, Norway. The island is mountainous, the highest summit being the Beerenberg volcano in the north. The isthmus is the location of the two largest lakes of the island, Sørlaguna and Nordlaguna. A third lake is called Ullerenglaguna. Jan Mayen was formed by the Jan Mayen hotspot and is defined by geologists as a microcontinent.
The Norwegian Polar Institute is Norway's central governmental institution for scientific research, mapping and environmental monitoring in the Arctic and the Antarctic. The NPI is a directorate under Norway's Ministry of Climate and Environment. The institute advises Norwegian authorities on matters concerning polar environmental management and is the official environmental management body for Norwegian activities in Antarctica.
The Greenland Sea is a body of water that borders Greenland to the west, the Svalbard archipelago to the east, Fram Strait and the Arctic Ocean to the north, and the Norwegian Sea and Iceland to the south. The Greenland Sea is often defined as part of the Arctic Ocean, sometimes as part of the Atlantic Ocean. However, definitions of the Arctic Ocean and its seas tend to be imprecise or arbitrary. In general usage the term "Arctic Ocean" would exclude the Greenland Sea. In oceanographic studies the Greenland Sea is considered part of the Nordic Seas, along with the Norwegian Sea. The Nordic Seas are the main connection between the Arctic and Atlantic oceans and, as such, could be of great significance in a possible shutdown of thermohaline circulation. In oceanography the Arctic Ocean and Nordic Seas are often referred to collectively as the "Arctic Mediterranean Sea", a marginal sea of the Atlantic.
Theodor Kjerulf was a Norwegian geologist and professor at the University of Oslo. He also served as director of the Norwegian Geological Survey.
Geological Survey of Norway, abbreviation: NGU, is a Norwegian government agency responsible for geologic mapping and research. The agency is located in Trondheim with an office in Tromsø, with about 200 employees. It is subordinate to the Norwegian Ministry of Trade, Industry and Fisheries.
Kjerulf Glacier, Norwegian: Kjerulfbreen, is a glacier 7 nautical miles (13 km) long flowing west from Mount Sugartop to the east side of Newark Bay, on the south coast of South Georgia. It was mapped by Olaf Holtedahl during his visit to South Georgia in 1927–28, and named by him for Norwegian geologist Theodor Kjerulf, Professor of Mineralogy at the University of Christiania.
Barentsjøkulen is a glacier on Barentsøya, Svalbard. The glacier covers an area of about 571 km2 (220 sq mi). It is named after the Barents Island, which again is named after Dutch explorer Willem Barentsz. Barents Island is on the Barents Sea.
Finn Malmgren Fjord is a fjord in Orvin Land at Nordaustlandet, Svalbard, between Glenhalvøya and Bergstrømodden. A land tongue of 0.5 kilometers separates the fjord from Adlersparrefjorden. Finn Malmgrenfjorden is named after Arctic explorer Finn Malmgren.
Kjerulfbreen is a glacier in Oscar II Land at Spitsbergen, Svalbard. It has a length of about 7.5 kilometers, and is debouching into the Trygghamna bay at the northern side of Isfjorden. The glacier is named after Norwegian geologist Theodor Kjerulf.
Sefströmbreen is a glacier in James I Land at Spitsbergen, Svalbard. It is debouching into Ekmanfjorden at the northern side of Isfjorden. The glacier is named after Nils Gabriel Sefström. During a surge in 1896 the glacier deposited large moraine ridges in the inner part of the fjord, and these can be seen at the islands of Coraholmen and Flintholmen. Sefströmbreen is included in the Nordre Isfjorden National Park.
Stormbukta is a bay in Sørkapp Land at Spitsbergen, Svalbard. It is located at the western shore of Spitsbergen, extending from Olsokneset northwards to Bjørnbeinflya. The bay is named after Arctic explorer Erik Storm. The glaciers Olsokbreen and Sørkappfonna debouch into the bay.
Samarinvågen is a bay in Sørkapp Land at Spitsbergen, Svalbard. It is a southern bay of the fjord Hornsund, located between Meranfjellet and Traunkammen. The bay is named after Samarin, member of Arctic expeditions between 1899 and 1902. The glacier Samarinbreen debouches into the bay.
Rijpbreen is a glacier in Gustav V Land at the northern side of Nordaustlandet, Svalbard. The glacier debouches into Bengtssenbukta, a western branch of Rijpfjorden. The glacier is named after Dutch explorer Jan Rijp.
Bragebreen is a glacier at Nordaustlandet, Svalbard. It is located at the mouth of Wahlenbergfjorden between the headlands of Brageneset and Idunneset. Bragebreen is a glacier stream from the large icecap Vestfonna.
Gimlebreen is a glacier in Gustav V Land at Nordaustlandet, Svalbard. It is located north of the headland of Brageneset. Gimlebreen is a glacier stream from the large icecap Vestfonna.
Besselsbreen is a glacier on Barentsøya, Svalbard. It is the largest offshoot of Barentsjøkulen, reaching down to the sea in the northeast direction, west of the point Kapp Bessels. The glacier is named after German Arctic explorer Emil Bessels.
Freemanbreen is a glacier on Barentsøya, Svalbard. It is an offshoot of Barentsjøkulen, reaching down to the sea in the southern direction, into Freeman Strait. The glacier is named after British Alderman Ralph Freeman. The mountain of Buklerimen separates Freemanbreen from the glacier of Hübnerbreen.
Duckwitzbreen is a glacier on Barentsøya, Svalbard. It is an offshoot of Barentsjøkulen, reaching down to the sea in the western direction. The glacier is named after German politician Arnold Duckwitz.
Weyprecht Glacier is a glacier in Jan Mayen. It is the longest glacier located in the Beerenberg area.
Kjerulf is a Danish surname. Notable people with the surname include:
