Image_2_Influence of Riverine Input on Norwegian Coastal Systems.tiff
Coastal ecosystems are of high ecological and socioeconomic importance and are strongly influenced by processes from land, sea, and human activities. In this study, we present physical, chemical, and biological observations over two consecutive years from three study regions along the Norwegian coas...
Main Authors: | , , , , , , , , |
---|---|
Format: | Still Image |
Language: | unknown |
Published: |
2020
|
Subjects: | |
Online Access: | https://doi.org/10.3389/fmars.2020.00332.s002 https://figshare.com/articles/Image_2_Influence_of_Riverine_Input_on_Norwegian_Coastal_Systems_tiff/12422633 |
id |
ftfrontimediafig:oai:figshare.com:article/12422633 |
---|---|
record_format |
openpolar |
spelling |
ftfrontimediafig:oai:figshare.com:article/12422633 2023-05-15T17:10:04+02:00 Image_2_Influence of Riverine Input on Norwegian Coastal Systems.tiff Helene Frigstad Øyvind Kaste Anne Deininger Karsten Kvalsund Guttorm Christensen Richard G. J. Bellerby Kai Sørensen Marit Norli Andrew L. King 2020-06-04T04:03:05Z https://doi.org/10.3389/fmars.2020.00332.s002 https://figshare.com/articles/Image_2_Influence_of_Riverine_Input_on_Norwegian_Coastal_Systems_tiff/12422633 unknown doi:10.3389/fmars.2020.00332.s002 https://figshare.com/articles/Image_2_Influence_of_Riverine_Input_on_Norwegian_Coastal_Systems_tiff/12422633 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering riverine run-off coastal systems Norwegian Coastal Current dissolved organic carbon (DOC) chromophoric DOC (cDOM) coastal darkening chlorophyll a environmental monitoring Image Figure 2020 ftfrontimediafig https://doi.org/10.3389/fmars.2020.00332.s002 2020-06-10T22:55:54Z Coastal ecosystems are of high ecological and socioeconomic importance and are strongly influenced by processes from land, sea, and human activities. In this study, we present physical, chemical, and biological observations over two consecutive years from three study regions along the Norwegian coast that represent a broad latitudinal gradient in catchment and oceanographic conditions (∼59–69°N): outer Oslofjord/southern Norway, Runde/western Norway, and Malangen/northern Norway. The observations included river monitoring, coastal monitoring, and sensor-equipped ships of opportunity (“FerryBox”). The riverine discharge and transports were an order of magnitude higher, and the spatiotemporal extent of this freshwater influence was larger in the coastal region in southern Norway, compared to western and northern Norway. The southern Norway coastal waters had consistently high dissolved organic carbon (DOC) and chromophoric dissolved organic matter (cDOM) fluorescence year-round, connected to the large influence of local riverine input and likely also advected riverine run-off and mixing with water masses from the southern North Sea and Baltic Sea. Meanwhile, the western and northern study regions were more sheltered and characterized by more episodic riverine input of freshwater, DOC, cDOM, and nutrients. The timing of the spring phytoplankton bloom in all three regions generally preceded the periods of high riverine input, which suggested that while the winter nutrient reserve was sufficient to fuel the spring bloom, the input of nutrients during the spring flood could sustain the spring bloom or the input of suspended matter, and DOC/cDOM could result in light limitation of the bloom. This article summarizes the impact of riverine input on three diverse coastal systems in terms timing and duration, as well as the potential consequences for ecosystem function especially as related to rising terrestrial organic matter input into coastal regions over the last decades and the projected increase due to climate change. Still Image Malangen Northern Norway Frontiers: Figshare Norway Malangen ENVELOPE(18.598,18.598,69.400,69.400) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering riverine run-off coastal systems Norwegian Coastal Current dissolved organic carbon (DOC) chromophoric DOC (cDOM) coastal darkening chlorophyll a environmental monitoring |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering riverine run-off coastal systems Norwegian Coastal Current dissolved organic carbon (DOC) chromophoric DOC (cDOM) coastal darkening chlorophyll a environmental monitoring Helene Frigstad Øyvind Kaste Anne Deininger Karsten Kvalsund Guttorm Christensen Richard G. J. Bellerby Kai Sørensen Marit Norli Andrew L. King Image_2_Influence of Riverine Input on Norwegian Coastal Systems.tiff |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering riverine run-off coastal systems Norwegian Coastal Current dissolved organic carbon (DOC) chromophoric DOC (cDOM) coastal darkening chlorophyll a environmental monitoring |
description |
Coastal ecosystems are of high ecological and socioeconomic importance and are strongly influenced by processes from land, sea, and human activities. In this study, we present physical, chemical, and biological observations over two consecutive years from three study regions along the Norwegian coast that represent a broad latitudinal gradient in catchment and oceanographic conditions (∼59–69°N): outer Oslofjord/southern Norway, Runde/western Norway, and Malangen/northern Norway. The observations included river monitoring, coastal monitoring, and sensor-equipped ships of opportunity (“FerryBox”). The riverine discharge and transports were an order of magnitude higher, and the spatiotemporal extent of this freshwater influence was larger in the coastal region in southern Norway, compared to western and northern Norway. The southern Norway coastal waters had consistently high dissolved organic carbon (DOC) and chromophoric dissolved organic matter (cDOM) fluorescence year-round, connected to the large influence of local riverine input and likely also advected riverine run-off and mixing with water masses from the southern North Sea and Baltic Sea. Meanwhile, the western and northern study regions were more sheltered and characterized by more episodic riverine input of freshwater, DOC, cDOM, and nutrients. The timing of the spring phytoplankton bloom in all three regions generally preceded the periods of high riverine input, which suggested that while the winter nutrient reserve was sufficient to fuel the spring bloom, the input of nutrients during the spring flood could sustain the spring bloom or the input of suspended matter, and DOC/cDOM could result in light limitation of the bloom. This article summarizes the impact of riverine input on three diverse coastal systems in terms timing and duration, as well as the potential consequences for ecosystem function especially as related to rising terrestrial organic matter input into coastal regions over the last decades and the projected increase due to climate change. |
format |
Still Image |
author |
Helene Frigstad Øyvind Kaste Anne Deininger Karsten Kvalsund Guttorm Christensen Richard G. J. Bellerby Kai Sørensen Marit Norli Andrew L. King |
author_facet |
Helene Frigstad Øyvind Kaste Anne Deininger Karsten Kvalsund Guttorm Christensen Richard G. J. Bellerby Kai Sørensen Marit Norli Andrew L. King |
author_sort |
Helene Frigstad |
title |
Image_2_Influence of Riverine Input on Norwegian Coastal Systems.tiff |
title_short |
Image_2_Influence of Riverine Input on Norwegian Coastal Systems.tiff |
title_full |
Image_2_Influence of Riverine Input on Norwegian Coastal Systems.tiff |
title_fullStr |
Image_2_Influence of Riverine Input on Norwegian Coastal Systems.tiff |
title_full_unstemmed |
Image_2_Influence of Riverine Input on Norwegian Coastal Systems.tiff |
title_sort |
image_2_influence of riverine input on norwegian coastal systems.tiff |
publishDate |
2020 |
url |
https://doi.org/10.3389/fmars.2020.00332.s002 https://figshare.com/articles/Image_2_Influence_of_Riverine_Input_on_Norwegian_Coastal_Systems_tiff/12422633 |
long_lat |
ENVELOPE(18.598,18.598,69.400,69.400) |
geographic |
Norway Malangen |
geographic_facet |
Norway Malangen |
genre |
Malangen Northern Norway |
genre_facet |
Malangen Northern Norway |
op_relation |
doi:10.3389/fmars.2020.00332.s002 https://figshare.com/articles/Image_2_Influence_of_Riverine_Input_on_Norwegian_Coastal_Systems_tiff/12422633 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2020.00332.s002 |
_version_ |
1766066490020200448 |