2006), Dynamical contrasts between pancake and pack ice, investigated with a drifting buoy array
[1] The motion of pancake ice was investigated using an array of specialised drifting buoys, deployed into the advancing ice edge of the Weddell Sea in April 2000. The buoys remained in the ice as the pancakes consolidated into a coherent ice sheet, and the study examined the contrasts in dynamics f...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.661.9887 http://www.damtp.cam.ac.uk/user/mjd50/2005JC003320.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.661.9887 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.661.9887 2023-05-15T16:41:17+02:00 2006), Dynamical contrasts between pancake and pack ice, investigated with a drifting buoy array Martin J. Doble Peter Wadhams The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.661.9887 http://www.damtp.cam.ac.uk/user/mjd50/2005JC003320.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.661.9887 http://www.damtp.cam.ac.uk/user/mjd50/2005JC003320.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.damtp.cam.ac.uk/user/mjd50/2005JC003320.pdf text ftciteseerx 2016-01-08T16:55:15Z [1] The motion of pancake ice was investigated using an array of specialised drifting buoys, deployed into the advancing ice edge of the Weddell Sea in April 2000. The buoys remained in the ice as the pancakes consolidated into a coherent ice sheet, and the study examined the contrasts in dynamics for equivalent periods before and after consolidation. Drift velocities were largely determined by the meridional component, perpendicular to the ice edge. Prior to consolidation, these showed significantly elevated magnitudes at high frequencies (periods shorter than six hours). Scalar velocities were higher than previously reported values, reducing with time and distance from the ice edge. The same trends were not evident from in situ wind data. Derivation of momentum transfer parameters (wind factor, turning angle) was hampered by a lack of reliable wind directions from the outermost buoys, however. Relative motions between buoys were investigated using differential kinematic parameters. These displayed high amplitude, high frequency oscillations in unconsolidated ice, with RMS invariant values up to two orders of magnitude higher than normally reported for Weddell Sea pack ice. The values were found to be strongly dependent on sampling interval, increasing further at intervals less than one hour. In situ winds did not display an equivalent variation, suggesting that wind-forcing was not responsible, and translation under wave action, either internal or surface gravity, was postulated as the forcing. Citation: Doble, M. J., and P. Wadhams (2006), Dynamical contrasts between pancake and pack ice, investigated with a drifting buoy array, J. Geophys. Res., 111, C11S24, doi:10.1029/2005JC003320. 1. Text Ice Sheet Weddell Sea Unknown Doble ENVELOPE(-62.550,-62.550,-64.667,-64.667) Pancake ENVELOPE(-55.815,-55.815,52.600,52.600) Weddell Weddell Sea |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
[1] The motion of pancake ice was investigated using an array of specialised drifting buoys, deployed into the advancing ice edge of the Weddell Sea in April 2000. The buoys remained in the ice as the pancakes consolidated into a coherent ice sheet, and the study examined the contrasts in dynamics for equivalent periods before and after consolidation. Drift velocities were largely determined by the meridional component, perpendicular to the ice edge. Prior to consolidation, these showed significantly elevated magnitudes at high frequencies (periods shorter than six hours). Scalar velocities were higher than previously reported values, reducing with time and distance from the ice edge. The same trends were not evident from in situ wind data. Derivation of momentum transfer parameters (wind factor, turning angle) was hampered by a lack of reliable wind directions from the outermost buoys, however. Relative motions between buoys were investigated using differential kinematic parameters. These displayed high amplitude, high frequency oscillations in unconsolidated ice, with RMS invariant values up to two orders of magnitude higher than normally reported for Weddell Sea pack ice. The values were found to be strongly dependent on sampling interval, increasing further at intervals less than one hour. In situ winds did not display an equivalent variation, suggesting that wind-forcing was not responsible, and translation under wave action, either internal or surface gravity, was postulated as the forcing. Citation: Doble, M. J., and P. Wadhams (2006), Dynamical contrasts between pancake and pack ice, investigated with a drifting buoy array, J. Geophys. Res., 111, C11S24, doi:10.1029/2005JC003320. 1. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Martin J. Doble Peter Wadhams |
spellingShingle |
Martin J. Doble Peter Wadhams 2006), Dynamical contrasts between pancake and pack ice, investigated with a drifting buoy array |
author_facet |
Martin J. Doble Peter Wadhams |
author_sort |
Martin J. Doble |
title |
2006), Dynamical contrasts between pancake and pack ice, investigated with a drifting buoy array |
title_short |
2006), Dynamical contrasts between pancake and pack ice, investigated with a drifting buoy array |
title_full |
2006), Dynamical contrasts between pancake and pack ice, investigated with a drifting buoy array |
title_fullStr |
2006), Dynamical contrasts between pancake and pack ice, investigated with a drifting buoy array |
title_full_unstemmed |
2006), Dynamical contrasts between pancake and pack ice, investigated with a drifting buoy array |
title_sort |
2006), dynamical contrasts between pancake and pack ice, investigated with a drifting buoy array |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.661.9887 http://www.damtp.cam.ac.uk/user/mjd50/2005JC003320.pdf |
long_lat |
ENVELOPE(-62.550,-62.550,-64.667,-64.667) ENVELOPE(-55.815,-55.815,52.600,52.600) |
geographic |
Doble Pancake Weddell Weddell Sea |
geographic_facet |
Doble Pancake Weddell Weddell Sea |
genre |
Ice Sheet Weddell Sea |
genre_facet |
Ice Sheet Weddell Sea |
op_source |
http://www.damtp.cam.ac.uk/user/mjd50/2005JC003320.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.661.9887 http://www.damtp.cam.ac.uk/user/mjd50/2005JC003320.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766031708720726016 |