Geodatendienst

Helicopter-borne Magnetics in the Arctic region (WMS)

Vorschau

URL des Zugangs (2)

https://services.bgr.de/wms/aerogeophysik/aeromagarctic/?&REQUEST=GetCapabilities&SERVICE=WMS https://services.bgr.de/wms/aerogeophysik/aeromagarctic/?&REQUEST=GetCapabilities&SERVICE=WMS

Querverweise (7)

Fixed-wing Magnetics NOGRAM I + II In 1998, as part of the expedition NOGRAM I (Northern Gravity, Radio Echo Sounding and Magnetics), a flight campaign was carried out over the Lincoln Sea north of Greenland with the Polar 2 aircraft (Dornier 228-100) in cooperation with the Alfred Wegener Institute Helmholtz Center for Polar and Marine Research. A second flight campaign NOGRAM II took place in 2011 with the Polar 5 (Basler BT-67) over the Wandel Sea north of Greenland. The aim of the research was the structure and architecture of the upper Earth’s crust underneath the ice-covered offshore areas of the Morris Jesup Plateau and coastal waters north of Greenland. The airborne magnetic surveys were carried out with a flight line spacing of 3 km, and control profiles were flown every 30 km. During the two expeditions, 33000 km of line data were collected (16000 km in 1998, and 17000 km in 2011). Helicopter-borne Magnetics CASE11 Onshore geological field work combined with an onshore/offshore aeromagnetic survey was carried out during a joint expedition of the German BGR and the Canadian GSC to understand the structural architecture of the North American continental margin. The helicopter-borne magnetic survey of 2008 covered the northern coastal areas of Ellesmere Island and the adjacent marine areas. The survey was conducted with a line separation of 2 km and covered a 40 to 50 km wide swath offshore about parallel to the north coast of Ellesmere Island from Yelverton Bay in the west to Parr Bay east of Cape Columbia, the northernmost point of Canada. Between Yelverton Bay and M'Clintock Inlet, the survey extended about 40 to 50 km inland, which was the prime target area of the CASE 11 geological investigations. This section of mountainous terrain was flown in a “draped” mode to keep the distance to ground at approximately 1500 ft, same as over the offshore areas. During a 4-weeks period in May/June 2008, close to 8000 km of aeromagnetic line data were acquired, covering an area of 12000 km².

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Allgemeine Geschäftsbedingungen, siehe https://www.bgr.bund.de/AGB - General terms and conditions, see https://www.bgr.bund.de/AGB_en. Die bereitgestellten Informationen sind bei Weiterverwendung wie folgt zu zitieren: Datenquelle: AeromagArctic, (c) BGR, Hannover, 2023

Ansprechpartner

Bundesanstalt für Geowissenschaften und Rohstoffe (BGR) Ruppel, Antonia, Dr.

polargeologie@bgr.de

Beschreibung

The study of the geodynamic evolution of the Arctic continental margin and opening of the Arctic Ocean represents a primary target of BGR research and is studied within the frame of the CASE programme. In addition to onshore geological investigations, BGR conducts airborne aeromagnetic surveys. The available service contains the results of aeromagnetic surveys from the CASE program as well as cooperation projects (PMAP, NARES & NOGRAM), which were obtained with helicopters or fixed-wing aircraft in the Arctic.

Aktualität des Datensatzes

Publikation	22.02.23

Raumbezug

Lage der Geodaten (in WGS84)

	SW Länge/Breite	NO Länge/Breite
	-85°/77.5°	-5°/86°

Koordinatensystem

EPSG: 3995

Verweise und Downloads

URL des Zugangs (2)

https://services.bgr.de/wms/aerogeophysik/aeromagarctic/?&REQUEST=GetCapabilities&SERVICE=WMS

Querverweise (7)

Geodatensatz

Geodatensatz

Helicopter-borne Magnetics CASE11 Onshore geological field work combined with an onshore/offshore aeromagnetic survey was carried out during a joint expedition of the German BGR and the Canadian GSC to understand the structural architecture of the North American continental margin. The helicopter-borne magnetic survey of 2008 covered the northern coastal areas of Ellesmere Island and the adjacent marine areas. The survey was conducted with a line separation of 2 km and covered a 40 to 50 km wide swath offshore about parallel to the north coast of Ellesmere Island from Yelverton Bay in the west to Parr Bay east of Cape Columbia, the northernmost point of Canada. Between Yelverton Bay and M'Clintock Inlet, the survey extended about 40 to 50 km inland, which was the prime target area of the CASE 11 geological investigations. This section of mountainous terrain was flown in a “draped” mode to keep the distance to ground at approximately 1500 ft, same as over the offshore areas. During a 4-weeks period in May/June 2008, close to 8000 km of aeromagnetic line data were acquired, covering an area of 12000 km².

Geodatensatz

Helicopter-borne Magnetics CASE12 As part of the CASE 12 expedition, geological fieldwork and an aeromagnetic survey were conducted on Ellesmere Island (Canadian Arctic) in the summer of 2011. The helicopter-borne magnetic survey covered the ice-free areas between Vendom Fiord and Strathcona Fiord in the west and the ice-covered mountain ranges of the Inglefield Uplift in the east. With a total flight time of approx. 35 hours, 4200 line kilometres were flown covering a total area of 6000 km². The distance between the individual lines was 2 km, and control profiles perpendicular to the individual lines were flown every 10 km. The aeromagnetic data were recorded by a magnetometer, which was towed approx. 30 m beneath the helicopter.

Geodatensatz

Helicopter-borne Magnetics NARES I (Robeson Channel) During the German-Canadian Nares Strait Expedition in 2001, an aeromagnetic survey was carried out across the northern part of the Nares Strait including the Hall Basin, Judge Daly Promontory and in Robeson Channel in cooperation with the Canadian GSC. The aim of the research was to detect and localize the Wegener Fault, a transform fault between Ellesmere Island and NW Greenland, which is closely linked to the opening of the North Atlantic and the Arctic Ocean. The helicopter-borne magnetic survey NARES I (Robeson Channel) was carried out with a flight line spacing of 2 km, and control profiles were flown every 10 km. During the expedition, 5470 km of line data were collected. The aeromagnetic data were recorded by a magnetometer, which was towed approx. 25 m beneath the helicopter and recorded at a constant altitude of 305 m (1000 ft) above ground.

Geodatensatz

Helicopter-borne Magnetics NARES I + II (Kane Basin) In May/June 2001, as part of the expedition NARES I, an aeromagnetic survey was carried out in the area of the eastern Kane Basin in cooperation with the Canadian GSC, in addition to the survey over the Robeson Channel and parallel to marine geophysical investigations with the Canadian icebreaker Louis S. St. Laurent. Another survey, NARES II, was conducted from Alexandra Fiord in 2003 and covered coastal areas of Ellesmere Island and the western Kane Basin. The aim of the research was to detect and localize the Wegener Fault, a transform fault between Ellesmere Island and NW Greenland, which is closely linked to the opening of the North Atlantic and the Arctic Ocean. The helicopter-borne magnetic surveys NARES I + II (Kane Basin) were carried out with a flight line spacing of 2 km, and control profiles were flown every 10 km. During the two expeditions, 11806 km of line data were collected (3573 km in 2001, and 8333 km in 2003), covering an area of approximately 20000 km². The aeromagnetic data were recorded by a magnetometer, which was towed approx. 25 m beneath the helicopter.

Geodatensatz

Helicopter-borne Magnetics PMAP-CASE As part of the PMAP-CASE (Polar Margin Aeromagnetic Program - Circum-Arctic Structural Events) expeditions, two surveys were conducted in consecutive seasons in 1997 and 1998. Cooperating partners were the Department of National Defence (DND), GSC Ottawa and the Institute for Aerospace Research Ottawa (IAR-NRC). The surveys covered the areas of the northern continental margin of Greenland including the northern Nansen Land and western Johannes V. Jensen Land, as well as parts of the Lincoln Sea. The objective of the campaigns was to investigate the structures of the upper crust of the Morris Jesup Plateau and the correlation of magnetic anomalies with known structures and geologic units on land (Franklinian Basin, Kap Washington volcanics, and volcanic dyke swarms). Airborne magnetic surveys (Convair 580) were conducted with a 3 km flight line spacing, and control lines were flown every 30 km. Data were recorded at a constant flight altitude of 300 m above ground. Approximately 30000 km of line data were collected during the two expeditions, covering an area of 73000 km².

Geodatensatz

Helicopter-borne Magnetics in the Arctic region The study of the geodynamic evolution of the Arctic continental margin and opening of the Arctic Ocean represents a primary target of BGR research and is studied within the frame of the CASE programme. In addition to onshore geological investigations, BGR conducts airborne aeromagnetic surveys. The available series contains the results of aeromagnetic surveys from the CASE program as well as cooperation projects (PMAP, NARES & NOGRAM), which were obtained with helicopters or fixed-wing aircraft in the Arctic.

Weitere Verweise (2)

https://services.bgr.de/geophysik/aeromagarctic

information

Karte im BGR-Geoviewer

https://services.bgr.de/wms/aerogeophysik/aeromagarctic/?REQUEST=GetCapabilities&SERVICE=wms&VERSION=1.3.0

Nutzung

Nutzungsbedingungen

Zugriffsbeschränkungen

Es gelten keine Zugriffsbeschränkungen

Kontakt

Ansprechpartner

Bundesanstalt für Geowissenschaften und Rohstoffe (BGR) Ruppel, Antonia, Dr. Stilleweg 2 30655 Hannover Deutschland

polargeologie@bgr.de

DETAIL.CUSTODIAN

Bundesanstalt für Geowissenschaften und Rohstoffe (BGR)

geodatenmanagement@bgr.de

Fachinformationen

Informationen zum Datensatz

Identifikator	1e243b61-7b52-18a7-d84f-9b1bef72ae3a
Fachliche Grundlage	The datasets contain the results of aeromagnetic surveys from the CASE program as well as cooperation projects (PMAP, NARES & NOGRAM), which were obtained with helicopters or fixed-wing aircraft in the Arctic.

Art des Dienstes	view
Version	OGC:WMS 1.3.0

Operation

Name der Operation	Beschreibung der Operation	Aufruf der Operation
GetCapabilities		https://services.bgr.de/wms/aerogeophysik/aeromagarctic/?
GetMap		https://services.bgr.de/wms/aerogeophysik/aeromagarctic/?

GetCapabilities Dokument

GetCapabilities anzeigen

Schlagworte

Suchbegriffe

Aerogeophysik

Aeromagnetik

Airborne geophysics

Anomalien des erdmagnetischen Feldes

Arctic

Arktis

Geologie

Geology

Nordpolargebiet

North Polar

anomalies of the Earth’s magnetic field

helicopter-borne /fixed-wing magnetics

Informationen zum Metadatensatz

Objekt-ID	numis-metadaten-88788be0-815d-413b-bcc2-b2bf79ac66ce
Aktualität der Metadaten	10.09.24
Sprache Metadatensatz	Englisch
XML Darstellung	Metadaten als XML herunterladen
Ansprechpartner (Metadatum)	geodatenmanagement@bgr.de