Circulation in the Freshwater Switchyard of the Arctic Ocean: University of Washington CTD Profile Data, Version 1.0
The Freshwater Switchyard of the Arctic Ocean (FSAO) project is a program to study freshwater circulation (sea ice and upper ocean) in the "freshwater switchyard" between Alert (Ellesmere Island) and the North Pole, through a series of annual springtime hydrographic surveys. An aircraft ba...
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ftdatacite:10.5065/d63n21h9 2023-05-15T14:52:05+02:00 Circulation in the Freshwater Switchyard of the Arctic Ocean: University of Washington CTD Profile Data, Version 1.0 Steele, M. 2010 ZIP: PKZIP (application/zip) https://dx.doi.org/10.5065/d63n21h9 https://arcticdata.io/catalog/#view/doi:10.5065/D63N21H9 en eng UCAR/NCAR - Earth Observing Laboratory http://data.eol.ucar.edu/datafile/nph-get/106.ARCSS129/readme.txt http://data.eol.ucar.edu/datafile/nph-get/106.ARCSS129/index.html http://psc.apl.washington.edu/switchyard/index.html These data are available to be used subject to the University Corporation for Atmospheric Research ("UCAR") terms and conditions. http://www2.ucar.edu/terms-of-use Arctic Oceanography FOS Earth and related environmental sciences Seawater Sampling ARCSS NSF Arctic System Science dataset Dataset scientific data 2010 ftdatacite https://doi.org/10.5065/d63n21h9 2021-11-05T12:55:41Z The Freshwater Switchyard of the Arctic Ocean (FSAO) project is a program to study freshwater circulation (sea ice and upper ocean) in the "freshwater switchyard" between Alert (Ellesmere Island) and the North Pole, through a series of annual springtime hydrographic surveys. An aircraft based at Alert on northern Ellesmere Island carries out the oceanographic surveys northward across the shelf break in late spring. These surveys are intended to measure the eastward-flowing boundary current and determine water property changes that occur in the transition from the deep Arctic Ocean basin to the shallow continental shelf. Measurements were made to 500m in late April and May of 2003-2009 using a Seabird Sea-Bird Electronics (SBE) 19plus SeaCAT internally recording CTD instrument with an Sea-Bird Electronics (SBE) 43 dissolved oxygen sensor. Data include depth, pressure, temperature in situ, potential temperature, conductivity, salinity, density and, if available, dissolved oxygen. In recent years, we have begun offering dissolved oxygen profiles in a separate archive to allow a different processing pathway. The basic CTD archives are preferred for all purposes that do not require oxygen. Through 2007, the aircraft was a Bell 206 helicopter. In April-May 2007, the worst Arctic flying weather in many years was encountered, negatively impacting many investigations. At Alert, a very wide shore lead evaporating ice fog never relented long enough to allow the helicopter to safely reach the study areas, so no data is included for 2007. In 2008, we used a Twin Otter skiplane to obtain many stations, at a cost of not being able to reach precise station positions from previous years. The 2009 data used primary Sea-Bird Electronics (SBE)-19 plus CTD (s/n 4344) was an Sea-Bird Electronics (SBE)-43 Dissolved Oxygen Sensor (s/n 408). Beginning with Cast 8, backup Sea-Bird Electronics (SBE)-19 (s/n 2373) with Sea-Bird Electronics (SBE)-43 (s/n 1406) was substituted, and that station recorded an excellent profile of oxygen as well as temperature and conductivity. The backup CTD itself failed completely at the first station the following day, for reasons under investigation by the manufacturer. At that point it was felt the safest course was to complete the survey removing the Sea-Bird Electronics (SBE)-43 from the primary CTD, to optimize our chances of collecting good CTD data. The result is 18 stations of quality CTD profiles, but only one (Cast 8) with oxygen. In 2010, Airborne Expendable CTD Probes were dropped into open leads from the Twin to record an ocean section across the north end of Nares Strait. Dataset Arctic Arctic Ocean Ellesmere Island Freshwater Switchyard of the Arctic Ocean Nares strait North Pole Sea ice DataCite Metadata Store (German National Library of Science and Technology) Arctic Arctic Ocean Ellesmere Island Nares ENVELOPE(158.167,158.167,-81.450,-81.450) North Pole |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Arctic Oceanography FOS Earth and related environmental sciences Seawater Sampling ARCSS NSF Arctic System Science |
spellingShingle |
Arctic Oceanography FOS Earth and related environmental sciences Seawater Sampling ARCSS NSF Arctic System Science Steele, M. Circulation in the Freshwater Switchyard of the Arctic Ocean: University of Washington CTD Profile Data, Version 1.0 |
topic_facet |
Arctic Oceanography FOS Earth and related environmental sciences Seawater Sampling ARCSS NSF Arctic System Science |
description |
The Freshwater Switchyard of the Arctic Ocean (FSAO) project is a program to study freshwater circulation (sea ice and upper ocean) in the "freshwater switchyard" between Alert (Ellesmere Island) and the North Pole, through a series of annual springtime hydrographic surveys. An aircraft based at Alert on northern Ellesmere Island carries out the oceanographic surveys northward across the shelf break in late spring. These surveys are intended to measure the eastward-flowing boundary current and determine water property changes that occur in the transition from the deep Arctic Ocean basin to the shallow continental shelf. Measurements were made to 500m in late April and May of 2003-2009 using a Seabird Sea-Bird Electronics (SBE) 19plus SeaCAT internally recording CTD instrument with an Sea-Bird Electronics (SBE) 43 dissolved oxygen sensor. Data include depth, pressure, temperature in situ, potential temperature, conductivity, salinity, density and, if available, dissolved oxygen. In recent years, we have begun offering dissolved oxygen profiles in a separate archive to allow a different processing pathway. The basic CTD archives are preferred for all purposes that do not require oxygen. Through 2007, the aircraft was a Bell 206 helicopter. In April-May 2007, the worst Arctic flying weather in many years was encountered, negatively impacting many investigations. At Alert, a very wide shore lead evaporating ice fog never relented long enough to allow the helicopter to safely reach the study areas, so no data is included for 2007. In 2008, we used a Twin Otter skiplane to obtain many stations, at a cost of not being able to reach precise station positions from previous years. The 2009 data used primary Sea-Bird Electronics (SBE)-19 plus CTD (s/n 4344) was an Sea-Bird Electronics (SBE)-43 Dissolved Oxygen Sensor (s/n 408). Beginning with Cast 8, backup Sea-Bird Electronics (SBE)-19 (s/n 2373) with Sea-Bird Electronics (SBE)-43 (s/n 1406) was substituted, and that station recorded an excellent profile of oxygen as well as temperature and conductivity. The backup CTD itself failed completely at the first station the following day, for reasons under investigation by the manufacturer. At that point it was felt the safest course was to complete the survey removing the Sea-Bird Electronics (SBE)-43 from the primary CTD, to optimize our chances of collecting good CTD data. The result is 18 stations of quality CTD profiles, but only one (Cast 8) with oxygen. In 2010, Airborne Expendable CTD Probes were dropped into open leads from the Twin to record an ocean section across the north end of Nares Strait. |
format |
Dataset |
author |
Steele, M. |
author_facet |
Steele, M. |
author_sort |
Steele, M. |
title |
Circulation in the Freshwater Switchyard of the Arctic Ocean: University of Washington CTD Profile Data, Version 1.0 |
title_short |
Circulation in the Freshwater Switchyard of the Arctic Ocean: University of Washington CTD Profile Data, Version 1.0 |
title_full |
Circulation in the Freshwater Switchyard of the Arctic Ocean: University of Washington CTD Profile Data, Version 1.0 |
title_fullStr |
Circulation in the Freshwater Switchyard of the Arctic Ocean: University of Washington CTD Profile Data, Version 1.0 |
title_full_unstemmed |
Circulation in the Freshwater Switchyard of the Arctic Ocean: University of Washington CTD Profile Data, Version 1.0 |
title_sort |
circulation in the freshwater switchyard of the arctic ocean: university of washington ctd profile data, version 1.0 |
publisher |
UCAR/NCAR - Earth Observing Laboratory |
publishDate |
2010 |
url |
https://dx.doi.org/10.5065/d63n21h9 https://arcticdata.io/catalog/#view/doi:10.5065/D63N21H9 |
long_lat |
ENVELOPE(158.167,158.167,-81.450,-81.450) |
geographic |
Arctic Arctic Ocean Ellesmere Island Nares North Pole |
geographic_facet |
Arctic Arctic Ocean Ellesmere Island Nares North Pole |
genre |
Arctic Arctic Ocean Ellesmere Island Freshwater Switchyard of the Arctic Ocean Nares strait North Pole Sea ice |
genre_facet |
Arctic Arctic Ocean Ellesmere Island Freshwater Switchyard of the Arctic Ocean Nares strait North Pole Sea ice |
op_relation |
http://data.eol.ucar.edu/datafile/nph-get/106.ARCSS129/readme.txt http://data.eol.ucar.edu/datafile/nph-get/106.ARCSS129/index.html http://psc.apl.washington.edu/switchyard/index.html |
op_rights |
These data are available to be used subject to the University Corporation for Atmospheric Research ("UCAR") terms and conditions. http://www2.ucar.edu/terms-of-use |
op_doi |
https://doi.org/10.5065/d63n21h9 |
_version_ |
1766323207819755520 |