Icebergs and sea ice detected with inverted echo sounders
Author Posting. © American Meteorological Society, 2015. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Atmospheric and Oceanic Technology 32 (2015): 1042–1057, doi:10.1175/JTEC...
Published in: | Journal of Atmospheric and Oceanic Technology |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Meteorological Society
2015
|
Subjects: | |
Online Access: | https://hdl.handle.net/1912/7331 |
id |
ftwhoas:oai:darchive.mblwhoilibrary.org:1912/7331 |
---|---|
record_format |
openpolar |
spelling |
ftwhoas:oai:darchive.mblwhoilibrary.org:1912/7331 2023-05-15T16:29:52+02:00 Icebergs and sea ice detected with inverted echo sounders Andres, Magdalena Silvano, Alessandro Straneo, Fiamma Watts, D. Randolph 2015-05 application/pdf https://hdl.handle.net/1912/7331 en_US eng American Meteorological Society https://doi.org/10.1175/JTECH-D-14-00161.1 Journal of Atmospheric and Oceanic Technology 32 (2015): 1042–1057 https://hdl.handle.net/1912/7331 doi:10.1175/JTECH-D-14-00161.1 Journal of Atmospheric and Oceanic Technology 32 (2015): 1042–1057 doi:10.1175/JTECH-D-14-00161.1 Glaciers Sea ice Ice thickness Data processing In situ oceanic observations Instrumentation/sensors Article 2015 ftwhoas https://doi.org/10.1175/JTECH-D-14-00161.1 2022-05-28T22:59:21Z Author Posting. © American Meteorological Society, 2015. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Atmospheric and Oceanic Technology 32 (2015): 1042–1057, doi:10.1175/JTECH-D-14-00161.1. 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. This work was supported by the National Science Foundation through the Divisions of Ocean Science and Polar Programs under Grant PLR-1332911. A. Silvano was supported as a WHOI guest student through a Gori Fellowship. Article in Journal/Newspaper Greenland Sea ice Sermilik Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Greenland Journal of Atmospheric and Oceanic Technology 32 5 1042 1057 |
institution |
Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
English |
topic |
Glaciers Sea ice Ice thickness Data processing In situ oceanic observations Instrumentation/sensors |
spellingShingle |
Glaciers Sea ice Ice thickness Data processing In situ oceanic observations Instrumentation/sensors Andres, Magdalena Silvano, Alessandro Straneo, Fiamma Watts, D. Randolph Icebergs and sea ice detected with inverted echo sounders |
topic_facet |
Glaciers Sea ice Ice thickness Data processing In situ oceanic observations Instrumentation/sensors |
description |
Author Posting. © American Meteorological Society, 2015. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Atmospheric and Oceanic Technology 32 (2015): 1042–1057, doi:10.1175/JTECH-D-14-00161.1. 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. This work was supported by the National Science Foundation through the Divisions of Ocean Science and Polar Programs under Grant PLR-1332911. A. Silvano was supported as a WHOI guest student through a Gori Fellowship. |
format |
Article in Journal/Newspaper |
author |
Andres, Magdalena Silvano, Alessandro Straneo, Fiamma Watts, D. Randolph |
author_facet |
Andres, Magdalena Silvano, Alessandro Straneo, Fiamma Watts, D. Randolph |
author_sort |
Andres, Magdalena |
title |
Icebergs and sea ice detected with inverted echo sounders |
title_short |
Icebergs and sea ice detected with inverted echo sounders |
title_full |
Icebergs and sea ice detected with inverted echo sounders |
title_fullStr |
Icebergs and sea ice detected with inverted echo sounders |
title_full_unstemmed |
Icebergs and sea ice detected with inverted echo sounders |
title_sort |
icebergs and sea ice detected with inverted echo sounders |
publisher |
American Meteorological Society |
publishDate |
2015 |
url |
https://hdl.handle.net/1912/7331 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Sea ice Sermilik |
genre_facet |
Greenland Sea ice Sermilik |
op_source |
Journal of Atmospheric and Oceanic Technology 32 (2015): 1042–1057 doi:10.1175/JTECH-D-14-00161.1 |
op_relation |
https://doi.org/10.1175/JTECH-D-14-00161.1 Journal of Atmospheric and Oceanic Technology 32 (2015): 1042–1057 https://hdl.handle.net/1912/7331 doi:10.1175/JTECH-D-14-00161.1 |
op_doi |
https://doi.org/10.1175/JTECH-D-14-00161.1 |
container_title |
Journal of Atmospheric and Oceanic Technology |
container_volume |
32 |
container_issue |
5 |
container_start_page |
1042 |
op_container_end_page |
1057 |
_version_ |
1766019581030170624 |