Colored dissolved organic matter absorption by waters of central-eastern Arctic Ocean
As consequences of global warming sea-ice shrinking, permafrost thawing and changes in fresh water and terrestrial material export have already been reported in the Arctic environment. These processes impact light penetration and primary production. To reach a better understanding of the current sta...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.867532 2023-05-15T14:26:06+02:00 Colored dissolved organic matter absorption by waters of central-eastern Arctic Ocean Gonçalves-Araujo, Rafael Peeken, Ilka Bracher, Astrid MEDIAN LATITUDE: 84.087473 * MEDIAN LONGITUDE: 125.372209 * SOUTH-BOUND LATITUDE: 76.177000 * WEST-BOUND LONGITUDE: 28.797170 * NORTH-BOUND LATITUDE: 89.965000 * EAST-BOUND LONGITUDE: -116.180000 * DATE/TIME START: 2011-08-07T12:07:00 * DATE/TIME END: 2011-09-26T02:11:00 2018-01-18 application/zip, 9 datasets https://doi.pangaea.de/10.1594/PANGAEA.867532 https://doi.org/10.1594/PANGAEA.867532 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.867532 https://doi.org/10.1594/PANGAEA.867532 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Gonçalves-Araujo, Rafael; Rabe, Benjamin; Peeken, Ilka; Bracher, Astrid (2018): High colored dissolved organic matter (CDOM) absorption in surface waters of the central-eastern Arctic Ocean: Implications for biogeochemistry and ocean color algorithms. PLoS ONE, 13(1), e0190838, https://doi.org/10.1371/journal.pone.0190838 FRAM FRontiers in Arctic marine Monitoring Dataset 2018 ftpangaea https://doi.org/10.1594/PANGAEA.867532 https://doi.org/10.1371/journal.pone.0190838 2023-01-20T07:33:48Z As consequences of global warming sea-ice shrinking, permafrost thawing and changes in fresh water and terrestrial material export have already been reported in the Arctic environment. These processes impact light penetration and primary production. To reach a better understanding of the current status and to provide accurate forecasts Arctic biogeochemical and physical parameters need to be extensively monitored. In this sense, bio-optical properties are useful to be measured due to the applicability of optical instrumentation to autonomous platforms, including satellites. This study characterizes the non-water absorbers and their coupling to hydrographic conditions in the poorly sampled surface waters of the central and eastern Arctic Ocean. Over the entire sampled area colored dissolved organic matter (CDOM) dominates the light absorption in surface waters. The distribution of CDOM, phytoplankton and non-algal particles absorption reproduces the hydrographic variability in this region of the Arctic Ocean which suggests a subdivision into five major bio-optical provinces: Laptev Sea Shelf, Laptev Sea, Central Arctic/Transpolar Drift, Beaufort Gyre and Eurasian/Nansen Basin. Evaluating ocean color algorithms commonly applied in the Arctic Ocean shows that global and regionally tuned empirical algorithms provide poor chlorophyll-a (Chl-a) estimates. The semi-analytical algorithms Generalized Inherent Optical Property model (GIOP) and Garver-Siegel-Maritorena (GSM), on the other hand, provide robust estimates of Chl-a and absorption of colored matter. Applying GSM with modifications proposed for the western Arctic Ocean produced reliable information on the absorption by colored matter, and specifically by CDOM. These findings highlight that only semi-analytical ocean color algorithms are able to identify with low uncertainty the distribution of the different optical water constituents in these high CDOM absorbing waters. In addition, a clustering of the Arctic Ocean into bio-optical provinces will help to develop ... Dataset Arctic Arctic Arctic Ocean Global warming Ice laptev Laptev Sea Nansen Basin permafrost Phytoplankton Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Arctic Arctic Ocean Laptev Sea ENVELOPE(28.797170,-116.180000,89.965000,76.177000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
FRAM FRontiers in Arctic marine Monitoring |
spellingShingle |
FRAM FRontiers in Arctic marine Monitoring Gonçalves-Araujo, Rafael Peeken, Ilka Bracher, Astrid Colored dissolved organic matter absorption by waters of central-eastern Arctic Ocean |
topic_facet |
FRAM FRontiers in Arctic marine Monitoring |
description |
As consequences of global warming sea-ice shrinking, permafrost thawing and changes in fresh water and terrestrial material export have already been reported in the Arctic environment. These processes impact light penetration and primary production. To reach a better understanding of the current status and to provide accurate forecasts Arctic biogeochemical and physical parameters need to be extensively monitored. In this sense, bio-optical properties are useful to be measured due to the applicability of optical instrumentation to autonomous platforms, including satellites. This study characterizes the non-water absorbers and their coupling to hydrographic conditions in the poorly sampled surface waters of the central and eastern Arctic Ocean. Over the entire sampled area colored dissolved organic matter (CDOM) dominates the light absorption in surface waters. The distribution of CDOM, phytoplankton and non-algal particles absorption reproduces the hydrographic variability in this region of the Arctic Ocean which suggests a subdivision into five major bio-optical provinces: Laptev Sea Shelf, Laptev Sea, Central Arctic/Transpolar Drift, Beaufort Gyre and Eurasian/Nansen Basin. Evaluating ocean color algorithms commonly applied in the Arctic Ocean shows that global and regionally tuned empirical algorithms provide poor chlorophyll-a (Chl-a) estimates. The semi-analytical algorithms Generalized Inherent Optical Property model (GIOP) and Garver-Siegel-Maritorena (GSM), on the other hand, provide robust estimates of Chl-a and absorption of colored matter. Applying GSM with modifications proposed for the western Arctic Ocean produced reliable information on the absorption by colored matter, and specifically by CDOM. These findings highlight that only semi-analytical ocean color algorithms are able to identify with low uncertainty the distribution of the different optical water constituents in these high CDOM absorbing waters. In addition, a clustering of the Arctic Ocean into bio-optical provinces will help to develop ... |
format |
Dataset |
author |
Gonçalves-Araujo, Rafael Peeken, Ilka Bracher, Astrid |
author_facet |
Gonçalves-Araujo, Rafael Peeken, Ilka Bracher, Astrid |
author_sort |
Gonçalves-Araujo, Rafael |
title |
Colored dissolved organic matter absorption by waters of central-eastern Arctic Ocean |
title_short |
Colored dissolved organic matter absorption by waters of central-eastern Arctic Ocean |
title_full |
Colored dissolved organic matter absorption by waters of central-eastern Arctic Ocean |
title_fullStr |
Colored dissolved organic matter absorption by waters of central-eastern Arctic Ocean |
title_full_unstemmed |
Colored dissolved organic matter absorption by waters of central-eastern Arctic Ocean |
title_sort |
colored dissolved organic matter absorption by waters of central-eastern arctic ocean |
publisher |
PANGAEA |
publishDate |
2018 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.867532 https://doi.org/10.1594/PANGAEA.867532 |
op_coverage |
MEDIAN LATITUDE: 84.087473 * MEDIAN LONGITUDE: 125.372209 * SOUTH-BOUND LATITUDE: 76.177000 * WEST-BOUND LONGITUDE: 28.797170 * NORTH-BOUND LATITUDE: 89.965000 * EAST-BOUND LONGITUDE: -116.180000 * DATE/TIME START: 2011-08-07T12:07:00 * DATE/TIME END: 2011-09-26T02:11:00 |
long_lat |
ENVELOPE(28.797170,-116.180000,89.965000,76.177000) |
geographic |
Arctic Arctic Ocean Laptev Sea |
geographic_facet |
Arctic Arctic Ocean Laptev Sea |
genre |
Arctic Arctic Arctic Ocean Global warming Ice laptev Laptev Sea Nansen Basin permafrost Phytoplankton Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean Global warming Ice laptev Laptev Sea Nansen Basin permafrost Phytoplankton Sea ice |
op_source |
Supplement to: Gonçalves-Araujo, Rafael; Rabe, Benjamin; Peeken, Ilka; Bracher, Astrid (2018): High colored dissolved organic matter (CDOM) absorption in surface waters of the central-eastern Arctic Ocean: Implications for biogeochemistry and ocean color algorithms. PLoS ONE, 13(1), e0190838, https://doi.org/10.1371/journal.pone.0190838 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.867532 https://doi.org/10.1594/PANGAEA.867532 |
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.867532 https://doi.org/10.1371/journal.pone.0190838 |
_version_ |
1766298566718914560 |