Raw data of SCADCP (self-contained Acoustic Doppler Current Profiler) from three moorings in the Eastern Weddell Sea in 2005
Ten-month time series of mean volume backscattering strength (MVBS) and vertical velocity obtained from three moored acoustic Doppler current profilers (ADCPs) deployed from February until December 2005 at 64°S, 66.5°S and 69°S along the Greenwich Meridian were used to analyse the diel vertical zoop...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.860565 2023-05-15T17:07:26+02:00 Raw data of SCADCP (self-contained Acoustic Doppler Current Profiler) from three moorings in the Eastern Weddell Sea in 2005 Cisewski, Boris Strass, Volker H Rhein, Monika Krägefsky, Sören MEDIAN LATITUDE: -66.486500 * MEDIAN LONGITUDE: -0.013267 * SOUTH-BOUND LATITUDE: -68.995800 * WEST-BOUND LONGITUDE: -0.031800 * NORTH-BOUND LATITUDE: -63.952700 * EAST-BOUND LONGITUDE: -0.001800 * DATE/TIME START: 2005-02-07T16:00:00 * DATE/TIME END: 2005-12-19T16:00:00 2010-05-19 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.860565 https://doi.org/10.1594/PANGAEA.860565 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.860565 https://doi.org/10.1594/PANGAEA.860565 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Cisewski, Boris; Strass, Volker H; Rhein, Monika; Krägefsky, Sören (2010): Seasonal variations of diel vertical migration of zooplankton from ADCP backscatter time series data in the Lazarev Sea, Antarctica. Deep Sea Research Part I: Oceanographic Research Papers, 57(1), 78-94, https://doi.org/10.1016/j.dsr.2009.10.005 Dataset 2010 ftpangaea https://doi.org/10.1594/PANGAEA.860565 https://doi.org/10.1016/j.dsr.2009.10.005 2023-01-20T07:33:44Z Ten-month time series of mean volume backscattering strength (MVBS) and vertical velocity obtained from three moored acoustic Doppler current profilers (ADCPs) deployed from February until December 2005 at 64°S, 66.5°S and 69°S along the Greenwich Meridian were used to analyse the diel vertical zooplankton migration (DVM) and its seasonality and regional variability in the Lazarev Sea. The estimated MVBS exhibited distinct patterns of DVM at all three mooring sites. Between February and October, the timing of the DVM and the residence time of zooplankton at depth were clearly governed by the day-night rhythm. Mean daily cycles of the ADCP-derived vertical velocity were calculated for successive months and showed maximum ascent and descent velocities of 16 and -15 mm/s. However, a change of the MVBS pattern occurred in late spring/early austral summer (October/November), when the zooplankton communities ceased their synchronous vertical migration at all three mooring sites. Elevated MVBS values were then concentrated in the uppermost layers (<50 m) at 66.5°S. This period coincided with the decay of sea ice coverage at 64°S and 66.5°S between early November and mid-December. Elevated chlorophyll concentrations, which were measured at the end of the deployment, extended from 67°S to 65°S and indicated a phytoplankton bloom in the upper 50 m. Thus, we propose that the increased food supply associated with an ice edge bloom caused the zooplankton communities to cease their DVM in favour of feeding. Dataset Lazarev Sea Sea ice Weddell Sea PANGAEA - Data Publisher for Earth & Environmental Science Weddell Sea Austral Weddell Greenwich Lazarev ENVELOPE(12.917,12.917,-69.967,-69.967) Lazarev Sea ENVELOPE(7.000,7.000,-68.000,-68.000) ENVELOPE(-0.031800,-0.001800,-63.952700,-68.995800) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
description |
Ten-month time series of mean volume backscattering strength (MVBS) and vertical velocity obtained from three moored acoustic Doppler current profilers (ADCPs) deployed from February until December 2005 at 64°S, 66.5°S and 69°S along the Greenwich Meridian were used to analyse the diel vertical zooplankton migration (DVM) and its seasonality and regional variability in the Lazarev Sea. The estimated MVBS exhibited distinct patterns of DVM at all three mooring sites. Between February and October, the timing of the DVM and the residence time of zooplankton at depth were clearly governed by the day-night rhythm. Mean daily cycles of the ADCP-derived vertical velocity were calculated for successive months and showed maximum ascent and descent velocities of 16 and -15 mm/s. However, a change of the MVBS pattern occurred in late spring/early austral summer (October/November), when the zooplankton communities ceased their synchronous vertical migration at all three mooring sites. Elevated MVBS values were then concentrated in the uppermost layers (<50 m) at 66.5°S. This period coincided with the decay of sea ice coverage at 64°S and 66.5°S between early November and mid-December. Elevated chlorophyll concentrations, which were measured at the end of the deployment, extended from 67°S to 65°S and indicated a phytoplankton bloom in the upper 50 m. Thus, we propose that the increased food supply associated with an ice edge bloom caused the zooplankton communities to cease their DVM in favour of feeding. |
format |
Dataset |
author |
Cisewski, Boris Strass, Volker H Rhein, Monika Krägefsky, Sören |
spellingShingle |
Cisewski, Boris Strass, Volker H Rhein, Monika Krägefsky, Sören Raw data of SCADCP (self-contained Acoustic Doppler Current Profiler) from three moorings in the Eastern Weddell Sea in 2005 |
author_facet |
Cisewski, Boris Strass, Volker H Rhein, Monika Krägefsky, Sören |
author_sort |
Cisewski, Boris |
title |
Raw data of SCADCP (self-contained Acoustic Doppler Current Profiler) from three moorings in the Eastern Weddell Sea in 2005 |
title_short |
Raw data of SCADCP (self-contained Acoustic Doppler Current Profiler) from three moorings in the Eastern Weddell Sea in 2005 |
title_full |
Raw data of SCADCP (self-contained Acoustic Doppler Current Profiler) from three moorings in the Eastern Weddell Sea in 2005 |
title_fullStr |
Raw data of SCADCP (self-contained Acoustic Doppler Current Profiler) from three moorings in the Eastern Weddell Sea in 2005 |
title_full_unstemmed |
Raw data of SCADCP (self-contained Acoustic Doppler Current Profiler) from three moorings in the Eastern Weddell Sea in 2005 |
title_sort |
raw data of scadcp (self-contained acoustic doppler current profiler) from three moorings in the eastern weddell sea in 2005 |
publisher |
PANGAEA |
publishDate |
2010 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.860565 https://doi.org/10.1594/PANGAEA.860565 |
op_coverage |
MEDIAN LATITUDE: -66.486500 * MEDIAN LONGITUDE: -0.013267 * SOUTH-BOUND LATITUDE: -68.995800 * WEST-BOUND LONGITUDE: -0.031800 * NORTH-BOUND LATITUDE: -63.952700 * EAST-BOUND LONGITUDE: -0.001800 * DATE/TIME START: 2005-02-07T16:00:00 * DATE/TIME END: 2005-12-19T16:00:00 |
long_lat |
ENVELOPE(12.917,12.917,-69.967,-69.967) ENVELOPE(7.000,7.000,-68.000,-68.000) ENVELOPE(-0.031800,-0.001800,-63.952700,-68.995800) |
geographic |
Weddell Sea Austral Weddell Greenwich Lazarev Lazarev Sea |
geographic_facet |
Weddell Sea Austral Weddell Greenwich Lazarev Lazarev Sea |
genre |
Lazarev Sea Sea ice Weddell Sea |
genre_facet |
Lazarev Sea Sea ice Weddell Sea |
op_source |
Supplement to: Cisewski, Boris; Strass, Volker H; Rhein, Monika; Krägefsky, Sören (2010): Seasonal variations of diel vertical migration of zooplankton from ADCP backscatter time series data in the Lazarev Sea, Antarctica. Deep Sea Research Part I: Oceanographic Research Papers, 57(1), 78-94, https://doi.org/10.1016/j.dsr.2009.10.005 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.860565 https://doi.org/10.1594/PANGAEA.860565 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.860565 https://doi.org/10.1016/j.dsr.2009.10.005 |
_version_ |
1766062841912098816 |