Arctic Gakkel Vents (AGAVE) Expedition - Meteorological, Oceanographic and Ship Data Collected Onboard Icebreaker Oden during July 1 through August 9 2007

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Description:

AGAVE was a US-financed project where scientists explored life in the hydrothermal vents from the core of the Earth, which has been found at the Gakkel Ridge, a mountain ridge below the Arctic Ocean.

The expedition was an International Polar Year (IPY) collaboration between scientists from the USA, Sweden, Germany and Japan.

The AGAVE expedition made a number of exciting discoveries on the Gakkel Ridge, and one of the most surprising was the fact that the axial valley at the 85°E segment is blanketed in pyroclastic deposits - the largest unconsolidated deposits ever found on the seafloor (picture 4). These deposits are caused by explosive volcanic eruptions, which many scientists had assumed were impossible in the deep ocean because of the great pressures at such depths. The AGAVE observations turn this idea upside down, and demonstrate that volcanic activity at the 85°E site has been accompanied by the catastrophic discharge of magmatic volatiles. These pyroclastic deposits are being analyzed to determine their age and composition in order to better understand this surprising result. The de

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Arctic Gakkel Vents (AGAVE) Expedition - Meteorological, Oceanographic and Ship Data Collected Onboard Icebreaker Oden during July 1 through August 9 2007

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DOI: doi.org/10.5879/ECDS/2016-07-07.6/1

Purpose:

The AGAVE expedition had two sets of complimentary objectives. The scientific objective was to study the geological, chemical, and biological characteristics of volcanic activity and hydrothermal venting on the Gakkel Ridge. The engineering objective was to develop new technologies for deep-sea research in ice-covered oceans.

Description:

AGAVE was a US-financed project where scientists explored life in the hydrothermal vents from the core of the Earth, which has been found at the Gakkel Ridge, a mountain ridge below the Arctic Ocean.

The expedition was an International Polar Year (IPY) collaboration between scientists from the USA, Sweden, Germany and Japan.

The AGAVE expedition made a number of exciting discoveries on the Gakkel Ridge, and one of the most surprising was the fact that the axial valley at the 85°E segment is blanketed in pyroclastic deposits - the largest unconsolidated deposits ever found on the seafloor (picture 4). These deposits are caused by explosive volcanic eruptions, which many scientists had assumed were impossible in the deep ocean because of the great pressures at such depths. The AGAVE observations turn this idea upside down, and demonstrate that volcanic activity at the 85°E site has been accompanied by the catastrophic discharge of magmatic volatiles. These pyroclastic deposits are being analyzed to determine their age and composition in order to better understand this surprising result. The de

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Language:

English

Time period(s) investigated:

2007-07-01 — 2007-08-10

Geographic spread:

Geographic location: Arctic ocean

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If you have published anything based on this study, please send a notification with a reference to your publication(s) to snd@snd.gu.se.

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Arctic Gakkel Vents (AGAVE) Expedition - Meteorological, Oceanographic and Ship Data Collected Onboard Icebreaker Oden during July 1 through August 9 2007

License:

Creative Commons License

Citation:

Swedish Polar Research Secretariat (2017). Arctic Gakkel Vents (AGAVE) Expedition - Meteorological, Oceanographic and Ship Data Collected Onboard Icebreaker Oden during July 1 through August 9 2007. Swedish National Data Service. Version 1.0. https://doi.org/10.5879/ECDS/2016-07-07.6/1

Description:

This data set contains meteorological, oceanographic and ship data collected during the US-Swedish expedition Arctic Gakkel Vents (AGAVE), which was an international research cruise using the icebreaker Oden in the Arctic Ocean.

Data includes:

meteorological variables: Air temperature, Humidity, Wind direction/speed, Atmospheric pressure.

Oceanographic variables: Sea water temperature, Conductivity, Salinity and Sound velocity.

Ship data: Position, Speed, Course, Water depth.

Further metad

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Data format / data structure:

Numeric

Geospatial

Data collection:

Mode of collection: Field observation

Time period(s) for data collection: 2007-07-01 — 2007-08-09

Collection methodology:

Physical measurements

Time period(s) investigated:

2007-07-01 — 2007-08-09

Variables:

15