Icebergs and sea ice detected with inverted echo sounders
Icebergs and sea ice detected with inverted echo sounders
A 1-yr experiment using a pressure-sensor-equipped inverted echo sounder (PIES) was conducted in Sermilik Fjord in southeastern Greenland (66°N, 38°E) from August 2011 to September 2012. Based on these high-latitude data, the interpretation of PIESs’ acoustic travel-time records from regions that are periodically ice covered were refined. In addition, new methods using PIESs for detecting icebergs and sea ice and for estimating iceberg drafts and drift speeds were developed and tested. During winter months, the PIES in Sermilik Fjord logged about 300 iceberg detections and recorded a 2-week period in early March of land-fast ice cover over the instrument site, consistent with satellite synthetic aperture radar (SAR) imagery. The deepest icebergs in the fjord were found to have keel depths greater than approximately 350 m. Average and maximum iceberg speeds were approximately 0.2 and 0.5 m s−1, respectively. The maximum tidal range at the site was ±1.8 m and during neap tides the range was ±0.3 m, as shown by the PIES’s pressure record.
1042-1057
Andres, M.
e0901536-c9cc-4530-9daf-53eee1642d4f
Silvano, A.
54a4322b-c52d-4179-a414-dc108c416ec9
Straneo, F.
025f7b0c-2d8f-48a7-9d1d-148a947b903c
Watts, D.R.
b4ad7741-d42a-4c21-8162-0a0033eeea4f
1 May 2015
Andres, M.
e0901536-c9cc-4530-9daf-53eee1642d4f
Silvano, A.
54a4322b-c52d-4179-a414-dc108c416ec9
Straneo, F.
025f7b0c-2d8f-48a7-9d1d-148a947b903c
Watts, D.R.
b4ad7741-d42a-4c21-8162-0a0033eeea4f
Andres, M., Silvano, A., Straneo, F. and Watts, D.R.
(2015)
Icebergs and sea ice detected with inverted echo sounders.
Journal of Atmospheric and Oceanic Technology, 32 (5), .
(doi:10.1175/JTECH-D-14-00161.1).
Abstract
A 1-yr experiment using a pressure-sensor-equipped inverted echo sounder (PIES) was conducted in Sermilik Fjord in southeastern Greenland (66°N, 38°E) from August 2011 to September 2012. Based on these high-latitude data, the interpretation of PIESs’ acoustic travel-time records from regions that are periodically ice covered were refined. In addition, new methods using PIESs for detecting icebergs and sea ice and for estimating iceberg drafts and drift speeds were developed and tested. During winter months, the PIES in Sermilik Fjord logged about 300 iceberg detections and recorded a 2-week period in early March of land-fast ice cover over the instrument site, consistent with satellite synthetic aperture radar (SAR) imagery. The deepest icebergs in the fjord were found to have keel depths greater than approximately 350 m. Average and maximum iceberg speeds were approximately 0.2 and 0.5 m s−1, respectively. The maximum tidal range at the site was ±1.8 m and during neap tides the range was ±0.3 m, as shown by the PIES’s pressure record.
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Published date: 1 May 2015
Additional Information:
Copyright: 2015 American Meteorological Society
Identifiers
Local EPrints ID: 469730
URI: http://eprints.soton.ac.uk/id/eprint/469730
ISSN: 0739-0572
PURE UUID: 5b49475e-5c02-4512-b9ab-7f2af4a83671
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Date deposited: 23 Sep 2022 16:32
Last modified: 17 Mar 2024 03:59
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Author:
M. Andres
Author:
F. Straneo
Author:
D.R. Watts
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