bergy bit and melt water trajectories in godthåbsfjord (sw greenland) observed by the expendable ice tracker
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2017
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Abstract
Icebergs and bergy bits makes up a significant component of the total freshwater flux from the Greenland Ice Sheet to the ocean. Observations of iceberg trajectories are biased toward larger icebergs and, as a result, the drift characteristics of smaller icebergs and bergy bits are poorly understood. In an attempt to fill this critical knowledge gap, we developed the open-source EXpendable Ice TrackEr (EXITE). EXITE is a low-cost, satellite-tracked GPS beacon capable of high-resolution temporal measurements over extended deployment periods (30 days or more). Furthermore, EXITE can transform to a surface drifter when its host iceberg capsizes or fragments. Here we describe basic construction of an EXITE beacon and present results from a deployment in Godthåbsfjord (SW Greenland) in August 2016. Overall, EXITE trajectories show out-fjord surface transport, in agreement with a simple estuarine circulation paradigm. However, eddies and abrupt wind-driven reversals reveal complex surface transport pathways at time scales of hours to days.
| Reference Key |
carlson2017frontiersbergy
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|---|---|
| Authors | ;Daniel F. Carlson;Daniel F. Carlson;Wieter Boone;Lorenz Meire;Lorenz Meire;Jakob Abermann;Søren Rysgaard;Søren Rysgaard;Søren Rysgaard |
| Journal | journal of aquatic food product technology |
| Year | 2017 |
| DOI |
10.3389/fmars.2017.00276
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| URL | |
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