Large sea ice outflow into the Nares Strait in 2007

Publication: Research - peer-reviewJournal article – Annual report year: 2010

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Large sea ice outflow into the Nares Strait in 2007. / Kwok, R.; Pedersen, L.T.; Gudmandsen, Preben; Pang, S.S.

In: Geophysical Research Letters, Vol. 37, 2010, p. L03502.

Publication: Research - peer-reviewJournal article – Annual report year: 2010

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Kwok, R.; Pedersen, L.T.; Gudmandsen, Preben; Pang, S.S. / Large sea ice outflow into the Nares Strait in 2007.

In: Geophysical Research Letters, Vol. 37, 2010, p. L03502.

Publication: Research - peer-reviewJournal article – Annual report year: 2010

Bibtex

@article{f9d78411e0b14484b02d8f741303305c,
title = "Large sea ice outflow into the Nares Strait in 2007",
publisher = "American Geophysical Union",
author = "R. Kwok and L.T. Pedersen and Preben Gudmandsen and S.S. Pang",
year = "2010",
doi = "10.1029/2009GL041872",
volume = "37",
pages = "L03502",
journal = "Geophysical Research Letters",
issn = "0094-8276",

}

RIS

TY - JOUR

T1 - Large sea ice outflow into the Nares Strait in 2007

A1 - Kwok,R.

A1 - Pedersen,L.T.

A1 - Gudmandsen,Preben

A1 - Pang,S.S.

AU - Kwok,R.

AU - Pedersen,L.T.

AU - Gudmandsen,Preben

AU - Pang,S.S.

PB - American Geophysical Union

PY - 2010

Y1 - 2010

N2 - Sea ice flux through the Nares Strait is most active during the fall and early winter, ceases in mid- to late winter after the formation of ice arches along the strait, and re-commences after breakup in summer. In 2007, ice arches failed to form. This resulted in the highest outflow of Arctic sea ice in the 13-year record between 1997 and 2009. The 2007 area and volume outflows of 87 x 10(3) km(2) and 254 km(3) are more than twice their 13-year means. This contributes to the recent loss of the thick, multiyear Arctic sea ice and represents similar to 10% of our estimates of the mean ice export at Fram Strait. Clearly, the ice arches control Arctic sea ice outflow. The duration of unobstructed flow explains more than 84% of the variance in the annual area flux. In our record, seasonal stoppages are always associated with the formation of an arch near the same location in the southern Kane Basin. Additionally, close to half the time another ice arch forms just north of Robeson Channel prior to the formation of the Kane Basin arch. Here, we examine the ice export with satellite derived thickness data and the timing of the formation of these ice arches. Citation: Kwok, R., L. Toudal Pedersen, P. Gudmandsen, and S. S. Pang (2010), Large sea ice outflow into the Nares Strait in 2007, Geophys. Res. Lett., 37, L03502, doi: 10.1029/2009GL041872.

AB - Sea ice flux through the Nares Strait is most active during the fall and early winter, ceases in mid- to late winter after the formation of ice arches along the strait, and re-commences after breakup in summer. In 2007, ice arches failed to form. This resulted in the highest outflow of Arctic sea ice in the 13-year record between 1997 and 2009. The 2007 area and volume outflows of 87 x 10(3) km(2) and 254 km(3) are more than twice their 13-year means. This contributes to the recent loss of the thick, multiyear Arctic sea ice and represents similar to 10% of our estimates of the mean ice export at Fram Strait. Clearly, the ice arches control Arctic sea ice outflow. The duration of unobstructed flow explains more than 84% of the variance in the annual area flux. In our record, seasonal stoppages are always associated with the formation of an arch near the same location in the southern Kane Basin. Additionally, close to half the time another ice arch forms just north of Robeson Channel prior to the formation of the Kane Basin arch. Here, we examine the ice export with satellite derived thickness data and the timing of the formation of these ice arches. Citation: Kwok, R., L. Toudal Pedersen, P. Gudmandsen, and S. S. Pang (2010), Large sea ice outflow into the Nares Strait in 2007, Geophys. Res. Lett., 37, L03502, doi: 10.1029/2009GL041872.

U2 - 10.1029/2009GL041872

DO - 10.1029/2009GL041872

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

VL - 37

SP - L03502

ER -