Reply on RC2 DOI Creative Commons
Ivan Kuznetsov

Опубликована: Дек. 23, 2023

Abstract. The Arctic Ocean is a region important for global and regional climate. Although generally quiescent compared to mid-latitudes, the upper ocean hosts mesoscale smaller scale processes. These processes can have profound impact on vertical fluxes, stratification, feedback with sea ice atmosphere. Sparse non-synoptic in-situ observations of polar oceans are limited by distribution manual observing platforms autonomous instrumentation. Analyzing observational data assess tracer field gradients dynamics becomes highly challenging when measurement drift pack due continuous changes in speed direction. This work presents dynamical reconstruction state, based Multidisciplinary Observatory Study Climate (MOSAiC) experiment. Overall, model reproduce lateral structure temperature, salinity, density fields, which allows projecting dynamically consistent features these fields onto regular grid. We identify two separate depth ranges enhanced eddy kinetic energy, located around maxima buoyancy frequency: halocline warm (modified) Atlantic Water. Simulations reveal notable decrease surface layer salinity towards north, accompanied high variability mixed south-north And no significant horizontal but an increase from west east 0.084 m/km gradient 0.6 standard deviation, indicating opposite characteristics resolves several stationary eddies Water provides insights into associated dynamics. obtained three-dimensional temperature be used further analysis thermohaline related submesoscale Central Arctic. Dynamic comparison state-of-the-art climate Earth System Models. developed nudging method utilize future diverse set instruments.

Язык: Английский

Comment on bg-2023-162 DOI Creative Commons

Tyler Cyronak

Опубликована: Янв. 26, 2024

Abstract. In polar regions, glaciers are retreating onto land, gradually widening ice-free coastal waters which known to act as new sinks of atmospheric carbon. However, the increasing delivery inorganic suspended particulate matter (iSPM) with meltwater might significantly impact their capacity contribute carbon sequestration. Here, we present an analysis satellite, meteorological, and SPM data well results coupled physical-biogeochemical model (1D GOTM-ECOSMO-E2E-Polar) newly implemented iSPM group, show its on ecosystem dynamics in warming fjord (Hornsund, European Arctic). Our indicate that a longer melt season (9 days per decade, 1979–2022), loss sea ice cover (44 1982–2021) formation marine habitat after retreat marine-terminating (around 100 km2 1976–2022, 38 % increase total area), glacial has transported loads from land (3.7 g·m−3 reconstructed for 1979–2022). The simulated light limitation induced by input delayed decreased phytoplankton, zooplankton, macrobenthos peak occurrence. areas markedly contributed plankton primary secondary production, burial sediments (5.1, 2.0, 0.9 GgC year, respectively, average 2005–2009 scenario). these values would have been higher 5.0, 2.1 0.1 without input. Carbon was least affected 16 decrease comparison 50 production) thus enhanced land-ocean connectivity should be investigated further context fluxes expanding fjords.

Язык: Английский

Процитировано

0
Reply on CC1 DOI Creative Commons
Marlena Szeligowska

Опубликована: Фев. 16, 2024

Abstract. In polar regions, glaciers are retreating onto land, gradually widening ice-free coastal waters which known to act as new sinks of atmospheric carbon. However, the increasing delivery inorganic suspended particulate matter (iSPM) with meltwater might significantly impact their capacity contribute carbon sequestration. Here, we present an analysis satellite, meteorological, and SPM data well results coupled physical-biogeochemical model (1D GOTM-ECOSMO-E2E-Polar) newly implemented iSPM group, show its on ecosystem dynamics in warming fjord (Hornsund, European Arctic). Our indicate that a longer melt season (9 days per decade, 1979–2022), loss sea ice cover (44 1982–2021) formation marine habitat after retreat marine-terminating (around 100 km2 1976–2022, 38 % increase total area), glacial has transported loads from land (3.7 g·m−3 reconstructed for 1979–2022). The simulated light limitation induced by input delayed decreased phytoplankton, zooplankton, macrobenthos peak occurrence. areas markedly contributed plankton primary secondary production, burial sediments (5.1, 2.0, 0.9 GgC year, respectively, average 2005–2009 scenario). these values would have been higher 5.0, 2.1 0.1 without input. Carbon was least affected 16 decrease comparison 50 production) thus enhanced land-ocean connectivity should be investigated further context fluxes expanding fjords.

Язык: Английский

Процитировано

0
Reply on RC1 DOI Creative Commons
Marlena Szeligowska

Опубликована: Фев. 16, 2024

Abstract. In polar regions, glaciers are retreating onto land, gradually widening ice-free coastal waters which known to act as new sinks of atmospheric carbon. However, the increasing delivery inorganic suspended particulate matter (iSPM) with meltwater might significantly impact their capacity contribute carbon sequestration. Here, we present an analysis satellite, meteorological, and SPM data well results coupled physical-biogeochemical model (1D GOTM-ECOSMO-E2E-Polar) newly implemented iSPM group, show its on ecosystem dynamics in warming fjord (Hornsund, European Arctic). Our indicate that a longer melt season (9 days per decade, 1979–2022), loss sea ice cover (44 1982–2021) formation marine habitat after retreat marine-terminating (around 100 km2 1976–2022, 38 % increase total area), glacial has transported loads from land (3.7 g·m−3 reconstructed for 1979–2022). The simulated light limitation induced by input delayed decreased phytoplankton, zooplankton, macrobenthos peak occurrence. areas markedly contributed plankton primary secondary production, burial sediments (5.1, 2.0, 0.9 GgC year, respectively, average 2005–2009 scenario). these values would have been higher 5.0, 2.1 0.1 without input. Carbon was least affected 16 decrease comparison 50 production) thus enhanced land-ocean connectivity should be investigated further context fluxes expanding fjords.

Язык: Английский

Процитировано

0
Spatial Variations of Ascidian Diets in a Glacial Retreated Fjord of the West Antarctic Peninsula DOI
Dong-U Kim,

In‐Young Ahn,

Jong‐Ku Gal

и другие.

Опубликована: Янв. 1, 2024

Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI

Язык: Английский

Процитировано

0
Estimates of carbon sequestration potential in an expanding Arctic fjord (Hornsund, Svalbard) affected by dark plumes of glacial meltwater DOI Creative Commons
Marlena Szeligowska, Déborah Benkort, Anna Przyborska

и другие.

Biogeosciences, Год журнала: 2024, Номер 21(16), С. 3617 - 3639

Опубликована: Авг. 20, 2024

Abstract. In polar regions, glaciers are retreating onto land, gradually widening ice-free coastal waters, which known to act as new sinks of atmospheric carbon. However, the increasing delivery inorganic suspended particulate matter (iSPM) with meltwater might significantly impact their capacity contribute carbon sequestration. Here, we present an analysis satellite, meteorological, and SPM data well results a coupled physical–biogeochemical model (1D GOTM-ECOSMO-E2E-Polar) newly implemented iSPM group show on ecosystem dynamics in warming fjord (Hornsund, European Arctic) numerous shallow-grounded marine-terminating glaciers. Our indicate that longer melt season (9 d per decade, 1979–2022), loss sea ice cover (44 1982–2021) formation marine habitats after retreat (around 100 km2 1976–2022, 38 % increase total area), glacial has transported loads from land (3.7 g m−3 reconstructed for 1979–2022). The simulated light limitation induced by input delayed decreased peaks phytoplankton, zooplankton, macrobenthos. areas still markedly contributed plankton primary secondary production burial sediments (5.1, 2.0, 0.9 Gg C yr−1, respectively, average 2005–2009 scenario). these values would have been 5.0, 2.1, 0.1 yr−1 higher, without input. Since was least affected (a decrease around 16 %, comparison 50 production), enhanced land–ocean connectivity should be investigated further context fluxes expanding fjords.

Язык: Английский

Процитировано

0
Tracking suspended particulate organic matter biochemistry from glacial meltwater runoff to coastal waters of an Antarctic fjord DOI

Claudia Parodi,

Luis Moroni Cerpa Cornejo, ⎜Zhuoyi Zhu

и другие.

Marine Chemistry, Год журнала: 2024, Номер unknown, С. 104455 - 104455

Опубликована: Сен. 1, 2024

Язык: Английский

Процитировано

0
Global warming facilitated environmental change effects on CO2 releasing microbes in Antarctic sediments DOI Creative Commons
David A. Aromokeye, Graciana Willis-Poratti, Lea C. Wunder

и другие.

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Ноя. 14, 2024

Abstract Rapid melting of the Western Antarctic Peninsula (WAP) glaciers is a compelling piece evidence how climate change affects our planet. This study investigated impact global warming-facilitated environmental on microbial community structure and function by subjecting sediments sampled near Fourcade Glacier in Potter Cove, WAP, to temperature gradient supply metabolic nutrients relevant for fate carbon marine ecosystems. We found that (i) as key driver will significantly structure, but ecological functions supported fresh from glacial meltwater prevail; (ii) keystone species responsible specialized are metabolically flexible, persisting 2°C 25°C; (iii) addition species, warming activate certain hitherto inactive endogenous microorganisms response either changes or nutrient flux sustain ecosystem functions. Our presents sediment microbiome resilience strong shifts, thereby adding another layer nature’s adaptability warming.

Язык: Английский

Процитировано

0
Spatial variations of ascidian diets in a glacial retreated fjord of the West Antarctic Peninsula DOI
Dong-U Kim,

In‐Young Ahn,

Jong‐Ku Gal

и другие.

Marine Environmental Research, Год журнала: 2024, Номер 204, С. 106891 - 106891

Опубликована: Дек. 3, 2024

Язык: Английский

Процитировано

0
Molecular responses of a key Antarctic species to sedimentation due to rapid climate change DOI
Micaela Ruiz, Natalia Servetto, Gastón Alurralde

и другие.

Marine Environmental Research, Год журнала: 2022, Номер 180, С. 105720 - 105720

Опубликована: Авг. 10, 2022

Язык: Английский

Процитировано

1
The estimates of carbon sequestration potential in an expanding Arctic fjord affected by dark plumes of glacial meltwater (Hornsund, Svalbard) DOI Creative Commons
Marlena Szeligowska, Déborah Benkort, Anna Przyborska

и другие.

Опубликована: Сен. 29, 2023

Abstract. In polar regions, glaciers are retreating onto land, gradually widening ice-free coastal waters which known to act as new sinks of atmospheric carbon. However, the increasing delivery inorganic suspended particulate matter (iSPM) with meltwater might significantly impact their capacity contribute carbon sequestration. Here, we present an analysis satellite, meteorological, and SPM data well results coupled physical-biogeochemical model (1D GOTM-ECOSMO-E2E-Polar) newly implemented iSPM group, show its on ecosystem dynamics in warming fjord (Hornsund, European Arctic). Our indicate that a longer melt season (9 days per decade, 1979–2022), loss sea ice cover (44 1982–2021) formation marine habitat after retreat marine-terminating (around 100 km2 1976–2022, 38 % increase total area), glacial has transported loads from land (3.7 g·m−3 reconstructed for 1979–2022). The simulated light limitation induced by input delayed decreased phytoplankton, zooplankton, macrobenthos peak occurrence. areas markedly contributed plankton primary secondary production, burial sediments (5.1, 2.0, 0.9 GgC year, respectively, average 2005–2009 scenario). these values would have been higher 5.0, 2.1 0.1 without input. Carbon was least affected 16 decrease comparison 50 production) thus enhanced land-ocean connectivity should be investigated further context fluxes expanding fjords.

Язык: Английский

Процитировано

0