Solar radiation over and under sea ice and photographic quantification of Ice algal aggregates during the POLARSTERN cruise ARK-XXVII/3 (IceArc) in summer 2012
The ice cover of the Arctic Ocean has been changing dramatically in the last decades and the consequences for the sea-ice associated ecosystem remain difficult to assess. Algal aggregates underneath sea ice have been described sporadically but the frequency and distribution of their occurrence is no...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.833292 2023-05-15T14:27:25+02:00 Solar radiation over and under sea ice and photographic quantification of Ice algal aggregates during the POLARSTERN cruise ARK-XXVII/3 (IceArc) in summer 2012 Katlein, Christian Fernández-Méndez, Mar Wenzhöfer, Frank Nicolaus, Marcel MEDIAN LATITUDE: 84.881542 * MEDIAN LONGITUDE: 75.932969 * SOUTH-BOUND LATITUDE: 81.884667 * WEST-BOUND LONGITUDE: 17.453670 * NORTH-BOUND LATITUDE: 88.827670 * EAST-BOUND LONGITUDE: 131.128670 * DATE/TIME START: 2012-08-09T08:08:00 * DATE/TIME END: 2012-09-29T15:10:00 2014-06-10 application/zip, 64 datasets https://doi.pangaea.de/10.1594/PANGAEA.833292 https://doi.org/10.1594/PANGAEA.833292 en eng PANGAEA Katlein, Christian; Nicolaus, Marcel; Petrich, Chris (2014): The anisotropic scattering coefficient of sea ice. Journal of Geophysical Research: Oceans, 119(2), 842-855, https://doi.org/10.1002/2013JC009502 https://doi.pangaea.de/10.1594/PANGAEA.833292 https://doi.org/10.1594/PANGAEA.833292 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Katlein, Christian; Fernández-Méndez, Mar; Wenzhöfer, Frank; Nicolaus, Marcel (2014): Distribution of algal aggregates under summer sea ice in the Central Arctic. Polar Biology, Polar Biology, 38(5), 719-731, https://doi.org/10.1007/s00300-014-1634-3 ABYSS Assessment of bacterial life and matter cycling in deep-sea surface sediments Dataset 2014 ftpangaea https://doi.org/10.1594/PANGAEA.833292 https://doi.org/10.1007/s00300-014-1634-3 https://doi.org/10.1002/2013JC009502 2023-01-20T07:33:18Z The ice cover of the Arctic Ocean has been changing dramatically in the last decades and the consequences for the sea-ice associated ecosystem remain difficult to assess. Algal aggregates underneath sea ice have been described sporadically but the frequency and distribution of their occurrence is not well quantified. We used upward looking images obtained by a remotely operated vehicle (ROV) to derive estimates of ice algal aggregate biomass and to investigate their spatial distribution. During the IceArc expedition (ARK-XXVII/3) of RV Polarstern in late summer 2012, different types of algal aggregates were observed floating underneath various ice types in the Central Arctic basins. Our results show that the floe scale distribution of algal aggregates in late summer is very patchy and determined by the topography of the ice underside, with aggregates collecting in dome shaped structures and at the edges of pressure ridges. The buoyancy of the aggregates was also evident from analysis of the aggregate size distribution. Different approaches used to estimate aggregate biomass yield a wide range of results. This highlights that special care must be taken when upscaling observations and comparing results from surveys conducted using different methods or on different spatial scales. Dataset Arctic Arctic Arctic Ocean Polar Biology Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Arctic Arctic Ocean ENVELOPE(17.453670,131.128670,88.827670,81.884667) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
ABYSS Assessment of bacterial life and matter cycling in deep-sea surface sediments |
spellingShingle |
ABYSS Assessment of bacterial life and matter cycling in deep-sea surface sediments Katlein, Christian Fernández-Méndez, Mar Wenzhöfer, Frank Nicolaus, Marcel Solar radiation over and under sea ice and photographic quantification of Ice algal aggregates during the POLARSTERN cruise ARK-XXVII/3 (IceArc) in summer 2012 |
topic_facet |
ABYSS Assessment of bacterial life and matter cycling in deep-sea surface sediments |
description |
The ice cover of the Arctic Ocean has been changing dramatically in the last decades and the consequences for the sea-ice associated ecosystem remain difficult to assess. Algal aggregates underneath sea ice have been described sporadically but the frequency and distribution of their occurrence is not well quantified. We used upward looking images obtained by a remotely operated vehicle (ROV) to derive estimates of ice algal aggregate biomass and to investigate their spatial distribution. During the IceArc expedition (ARK-XXVII/3) of RV Polarstern in late summer 2012, different types of algal aggregates were observed floating underneath various ice types in the Central Arctic basins. Our results show that the floe scale distribution of algal aggregates in late summer is very patchy and determined by the topography of the ice underside, with aggregates collecting in dome shaped structures and at the edges of pressure ridges. The buoyancy of the aggregates was also evident from analysis of the aggregate size distribution. Different approaches used to estimate aggregate biomass yield a wide range of results. This highlights that special care must be taken when upscaling observations and comparing results from surveys conducted using different methods or on different spatial scales. |
format |
Dataset |
author |
Katlein, Christian Fernández-Méndez, Mar Wenzhöfer, Frank Nicolaus, Marcel |
author_facet |
Katlein, Christian Fernández-Méndez, Mar Wenzhöfer, Frank Nicolaus, Marcel |
author_sort |
Katlein, Christian |
title |
Solar radiation over and under sea ice and photographic quantification of Ice algal aggregates during the POLARSTERN cruise ARK-XXVII/3 (IceArc) in summer 2012 |
title_short |
Solar radiation over and under sea ice and photographic quantification of Ice algal aggregates during the POLARSTERN cruise ARK-XXVII/3 (IceArc) in summer 2012 |
title_full |
Solar radiation over and under sea ice and photographic quantification of Ice algal aggregates during the POLARSTERN cruise ARK-XXVII/3 (IceArc) in summer 2012 |
title_fullStr |
Solar radiation over and under sea ice and photographic quantification of Ice algal aggregates during the POLARSTERN cruise ARK-XXVII/3 (IceArc) in summer 2012 |
title_full_unstemmed |
Solar radiation over and under sea ice and photographic quantification of Ice algal aggregates during the POLARSTERN cruise ARK-XXVII/3 (IceArc) in summer 2012 |
title_sort |
solar radiation over and under sea ice and photographic quantification of ice algal aggregates during the polarstern cruise ark-xxvii/3 (icearc) in summer 2012 |
publisher |
PANGAEA |
publishDate |
2014 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.833292 https://doi.org/10.1594/PANGAEA.833292 |
op_coverage |
MEDIAN LATITUDE: 84.881542 * MEDIAN LONGITUDE: 75.932969 * SOUTH-BOUND LATITUDE: 81.884667 * WEST-BOUND LONGITUDE: 17.453670 * NORTH-BOUND LATITUDE: 88.827670 * EAST-BOUND LONGITUDE: 131.128670 * DATE/TIME START: 2012-08-09T08:08:00 * DATE/TIME END: 2012-09-29T15:10:00 |
long_lat |
ENVELOPE(17.453670,131.128670,88.827670,81.884667) |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Polar Biology Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean Polar Biology Sea ice |
op_source |
Supplement to: Katlein, Christian; Fernández-Méndez, Mar; Wenzhöfer, Frank; Nicolaus, Marcel (2014): Distribution of algal aggregates under summer sea ice in the Central Arctic. Polar Biology, Polar Biology, 38(5), 719-731, https://doi.org/10.1007/s00300-014-1634-3 |
op_relation |
Katlein, Christian; Nicolaus, Marcel; Petrich, Chris (2014): The anisotropic scattering coefficient of sea ice. Journal of Geophysical Research: Oceans, 119(2), 842-855, https://doi.org/10.1002/2013JC009502 https://doi.pangaea.de/10.1594/PANGAEA.833292 https://doi.org/10.1594/PANGAEA.833292 |
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.833292 https://doi.org/10.1007/s00300-014-1634-3 https://doi.org/10.1002/2013JC009502 |
_version_ |
1766301132060098560 |