Fluorescence quantum yield of CDOM in coastal zones of the Arctic seas
Along with traditional optical indices, calculated from absorption and fluorescence spectra to describe chromophoric dissolved organic matter (CDOM) naturally occurring in water, the fluorescence quantum yield (FQY) becomes significant. Knowledge of CDOM optical properties is important for satellite...
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ftdatacite:10.6084/m9.figshare.6993650 2023-05-15T14:29:19+02:00 Fluorescence quantum yield of CDOM in coastal zones of the Arctic seas Drozdova, Anastasia N. Kravchishina, Marina D. Khundzhua, Daria A. Freidkin, Mihail P. Patsaeva, Svetlana V. 2018 https://dx.doi.org/10.6084/m9.figshare.6993650 https://tandf.figshare.com/articles/Fluorescence_quantum_yield_of_CDOM_in_coastal_zones_of_the_Arctic_seas/6993650 unknown Taylor & Francis https://dx.doi.org/10.1080/01431161.2018.1506187 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Biotechnology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences 39999 Chemical Sciences not elsewhere classified FOS Chemical sciences Ecology FOS Biological sciences Inorganic Chemistry Text article-journal Journal contribution ScholarlyArticle 2018 ftdatacite https://doi.org/10.6084/m9.figshare.6993650 https://doi.org/10.1080/01431161.2018.1506187 2021-11-05T12:55:41Z Along with traditional optical indices, calculated from absorption and fluorescence spectra to describe chromophoric dissolved organic matter (CDOM) naturally occurring in water, the fluorescence quantum yield (FQY) becomes significant. Knowledge of CDOM optical properties is important for satellite remote sensing as well as for lidar ground-true measurements. The FQY as a function of excitation wavelength within 240–500 nm range for a variety of the Arctic shelf waters was determined for the first time in order to identify the characteristic chromophores peculiar to different regions of the Arctic basin affected by freshwater runoff. The surface water samples were collected during several cruises in 2015–2017 in the following sites: the mouth areas of the Khatanga and Lena Rivers (the Laptev Sea), the delta area of the Northern Dvina River (the White Sea), desalinated waters of the Kara Sea (influenced by freshwater of the Ob and Yenisei Rivers) and the East Siberian Sea (influenced by freshwaters of the Indigirka and Kolyma Rivers), as well the shelf areas of those seas not affected by terrigenous runoff. To characterize DOM, conventional optical indices SR, HIX, and BIX were calculated. In most cases, important humic character of DOM was established, while the contribution of autochthonous organic matter varied from low to intermediate level. For the samples with terrestrial impact, the FQY decreased from excitation at 240 nm to 270–280 nm and then increased, demonstrating two peaks at 340 and 380 nm, with constant decrease towards longer excitation wavelengths; at λ ex = 380 nm FQY varied from 1.4% to 3.1%. In some cases, additional maximum at 270 nm of FQY-excitation dependency was observed as an indicator of autochthonous nature of biological material. Minimal FQY was measured for the White Sea surface waters, the maximal for the Laptev and East Siberian seas. Text Arctic Basin Arctic dvina East Siberian Sea Kara Sea khatanga laptev Laptev Sea White Sea DataCite Metadata Store (German National Library of Science and Technology) Arctic East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) Indigirka ENVELOPE(149.609,149.609,70.929,70.929) Kara Sea Kolyma ENVELOPE(161.000,161.000,69.500,69.500) Laptev Sea White Sea |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Biotechnology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences 39999 Chemical Sciences not elsewhere classified FOS Chemical sciences Ecology FOS Biological sciences Inorganic Chemistry |
spellingShingle |
Biotechnology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences 39999 Chemical Sciences not elsewhere classified FOS Chemical sciences Ecology FOS Biological sciences Inorganic Chemistry Drozdova, Anastasia N. Kravchishina, Marina D. Khundzhua, Daria A. Freidkin, Mihail P. Patsaeva, Svetlana V. Fluorescence quantum yield of CDOM in coastal zones of the Arctic seas |
topic_facet |
Biotechnology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences 39999 Chemical Sciences not elsewhere classified FOS Chemical sciences Ecology FOS Biological sciences Inorganic Chemistry |
description |
Along with traditional optical indices, calculated from absorption and fluorescence spectra to describe chromophoric dissolved organic matter (CDOM) naturally occurring in water, the fluorescence quantum yield (FQY) becomes significant. Knowledge of CDOM optical properties is important for satellite remote sensing as well as for lidar ground-true measurements. The FQY as a function of excitation wavelength within 240–500 nm range for a variety of the Arctic shelf waters was determined for the first time in order to identify the characteristic chromophores peculiar to different regions of the Arctic basin affected by freshwater runoff. The surface water samples were collected during several cruises in 2015–2017 in the following sites: the mouth areas of the Khatanga and Lena Rivers (the Laptev Sea), the delta area of the Northern Dvina River (the White Sea), desalinated waters of the Kara Sea (influenced by freshwater of the Ob and Yenisei Rivers) and the East Siberian Sea (influenced by freshwaters of the Indigirka and Kolyma Rivers), as well the shelf areas of those seas not affected by terrigenous runoff. To characterize DOM, conventional optical indices SR, HIX, and BIX were calculated. In most cases, important humic character of DOM was established, while the contribution of autochthonous organic matter varied from low to intermediate level. For the samples with terrestrial impact, the FQY decreased from excitation at 240 nm to 270–280 nm and then increased, demonstrating two peaks at 340 and 380 nm, with constant decrease towards longer excitation wavelengths; at λ ex = 380 nm FQY varied from 1.4% to 3.1%. In some cases, additional maximum at 270 nm of FQY-excitation dependency was observed as an indicator of autochthonous nature of biological material. Minimal FQY was measured for the White Sea surface waters, the maximal for the Laptev and East Siberian seas. |
format |
Text |
author |
Drozdova, Anastasia N. Kravchishina, Marina D. Khundzhua, Daria A. Freidkin, Mihail P. Patsaeva, Svetlana V. |
author_facet |
Drozdova, Anastasia N. Kravchishina, Marina D. Khundzhua, Daria A. Freidkin, Mihail P. Patsaeva, Svetlana V. |
author_sort |
Drozdova, Anastasia N. |
title |
Fluorescence quantum yield of CDOM in coastal zones of the Arctic seas |
title_short |
Fluorescence quantum yield of CDOM in coastal zones of the Arctic seas |
title_full |
Fluorescence quantum yield of CDOM in coastal zones of the Arctic seas |
title_fullStr |
Fluorescence quantum yield of CDOM in coastal zones of the Arctic seas |
title_full_unstemmed |
Fluorescence quantum yield of CDOM in coastal zones of the Arctic seas |
title_sort |
fluorescence quantum yield of cdom in coastal zones of the arctic seas |
publisher |
Taylor & Francis |
publishDate |
2018 |
url |
https://dx.doi.org/10.6084/m9.figshare.6993650 https://tandf.figshare.com/articles/Fluorescence_quantum_yield_of_CDOM_in_coastal_zones_of_the_Arctic_seas/6993650 |
long_lat |
ENVELOPE(166.000,166.000,74.000,74.000) ENVELOPE(149.609,149.609,70.929,70.929) ENVELOPE(161.000,161.000,69.500,69.500) |
geographic |
Arctic East Siberian Sea Indigirka Kara Sea Kolyma Laptev Sea White Sea |
geographic_facet |
Arctic East Siberian Sea Indigirka Kara Sea Kolyma Laptev Sea White Sea |
genre |
Arctic Basin Arctic dvina East Siberian Sea Kara Sea khatanga laptev Laptev Sea White Sea |
genre_facet |
Arctic Basin Arctic dvina East Siberian Sea Kara Sea khatanga laptev Laptev Sea White Sea |
op_relation |
https://dx.doi.org/10.1080/01431161.2018.1506187 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.6993650 https://doi.org/10.1080/01431161.2018.1506187 |
_version_ |
1766303364926144512 |